About the Role

The Platform Security team sits at the core of the Fireblocks platform. We are responsible for the engine that evaluates, enforces, and governs every action taken within the system. If it involves a governance policy, an approval chain, or access control, it touches our team.

We are looking for a strong, ownership-driven Senior Software Engineer to lead our Policy Engine and Governance domain. You will perform mission-critical engineering at high scale, where correctness is everything. This role requires a true "builder", someone who can architect complex, distributed business logic while also having the technical depth and willingness to dive into low-level C++ code to optimize core platform components.

What You’ll Do

• Own the Domain: Take end-to-end technical ownership of the Policy Engine and Governance domain, driving the architecture, design, and implementation from 0 to 1 and beyond.
• Bridge High-Level & Low-Level: Navigate seamlessly between designing highly available, modern microservices and writing/maintaining performance-critical, low-level C++ code when the system demands it.
• Build for Scale: Implement robust backend applications to process complex rule evaluations at scale and with minimal latency.
• Collaborate & Lead: Act as a technical leader within the team, collaborating closely with Product, and other engineering teams to translate complex enterprise governance requirements into scalable technical solutions.
• Maintain Excellence: Ensure the robustness and maintainability of our services, taking part in incident response, on-call rotations, and operational excellence.
• Leverage AI: Utilize modern AI tools and agents to accelerate development workflows, while applying critical judgment to validate AI-generated output in complex or high-stakes contexts.

What You’ll Bring

Must-Have:

• 8+ years of backend engineering experience building large-scale, high-volume distributed systems or SaaS platforms.
• Polyglot & Systems Depth: Strong proficiency in modern backend languages (e.g., Go, TypeScript, Python, or Java) combined with hands-on experience and a willingness to touch low-level C++ code.
• Architectural Mastery: Deep understanding of system design, microservices architecture, concurrency, and distributed SQL databases.
• Builder's Mentality: A proven track record of taking deep ownership of a complex product domain, acting as a technical anchor, and pushing projects forward independently.
• AI Tooling Experience: Hands-on experience working with AI development tools (Claude Code, Cursor, etc.) and the critical engineering judgment to know when to trust and when to override them.
• Infrastructure Knowledge: Experience working with cloud and backend technologies (e.g., Docker, Kubernetes, AWS, DataDog).

Strong Advantage:

• Security Mindset: A background in cyber-security, adversarial thinking, or experience working in highly security-sensitive environments.
• Governance Expertise: Experience building Policy Engines, Rule Engines, Identity and Access Management (IAM) systems, or authorization frameworks.
• Blockchain Knowledge: Familiarity with the blockchain ecosystem, smart contracts, or digital assets.

The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks' platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more.

About the Team

The Wallet Flows team is leading a strategic transformation of Fireblocks' core infrastructure. We're methodically redesigning and rewriting major system components to create next-generation architecture that enhances security, scalability, and performance.

Our team blends industry veterans and rising talent, united by excellence and a results-driven mindset. We value seasoned expertise alongside fresh perspectives, fostering an environment where pragmatic solutions and innovation thrive together.

About the Role

We are looking for a Full Stack Engineer with a strong blockchain foundation. In this role, you will work across the entire stack  from user-facing interfaces to backend services and on-chain integrations  to build and evolve the systems that power institutional digital asset operations.

You will serve as a technical bridge between raw blockchain capabilities and the polished wallet experiences delivered to customers. This means diving into protocol-level details one day and refining a transaction workflow UI the next. Your blockchain expertise will directly inform how we design, build, and ship features that handle billions in transaction volume.

What You'll Do

• Design and build end-to-end features across frontend, backend, and blockchain layers that power Fireblocks' wallet infrastructure
• Architect and deliver mission-critical components while maintaining 24/7 operations with zero disruption to live transaction volume
• Research and integrate blockchain technologies including Layer 2 solutions, cross-chain bridges, staking protocols, and DeFi integrations into the Fireblocks platform
• Develop intuitive, responsive interfaces that surface complex blockchain operations in a clear and actionable way for institutional users
• Collaborate with blockchain foundations, vendors, builders, and customers to understand protocol design, tooling, and integration requirements
• Balance pragmatism with vision - make smart trade-offs to deliver incremental value while steadily advancing toward next-generation architecture goals
• Collaborate with product, engineering, and security teams to define technical requirements and deliver cohesive solutions
• Mentor and guide other engineers on blockchain technologies, full stack patterns, and best practices

What You'll Bring

• 5+ years of full stack development experience with modern frontend frameworks (TypeScript) and backend services ( Go, or Python)
• 3+ years of hands-on experience in the blockchain ecosystem — working with protocols, on-chain data, smart contracts, or wallet infrastructure
• Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems
• Strong understanding of microservices architecture, API design, and modern frontend patterns
• Demonstrated ability to apply AI tools for programming with experience in vibe coding
• Strong verbal and written communication skills and a collaborative mindset
• Experience working in cross-functional teams and fast-paced environments
• A curious mind, willing to learn, including new coding languages and tech stacks. 

Preferred

• Experience building blockchain solutions for enterprise or institutional use cases
• Understanding of security best practices for smart contracts and blockchain systems
• Experience with MPC, multi-signature wallets, or other advanced cryptographic techniques
• Experience with institutional DeFi, staking protocols, or custody solutions
• Experience modernizing and transforming mission-critical production systems with minimal disruption
• Bachelor's degree in Computer Science, Engineering, or related field; Master's degree preferred

Success Criteria & Impact

• You deliver features end-to-end — from UI to on-chain integration — with high quality and minimal iteration
• Your blockchain expertise is consistently leveraged as a foundation for architectural and product decisions
• You are considered a subject matter expert by internal engineering teams across both application and protocol layers
• Consistent contribution to the Fireblocks platform by pushing impactful design and code to production

For employees hired to work from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City, and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $177,000 to $230,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. While we believe competitive compensation is a critical aspect of you deciding to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

About the Role

Join the Blockchain Backend Infrastructure team and take a position in building and maintaining Fireblocks's blockchain management platform. You'll be responsible for building cutting-edge blockchain infrastructure while implementing high-throughput, real-time scalable software solutions.

As a Blockchain Engineer, you will be instrumental in the research and integration of blockchain technologies into the Fireblocks platform. Your responsibilities will include collaborating closely with foundations and developers to gain a deep understanding of blockchain protocols and on-chain projects, then applying that knowledge to implement new features within the platform.

You will focus equally on external protocol integration patterns and internal wallet infrastructure. This role serves as a technical bridge between raw on-chain capabilities and the wallet features delivered to our customers.

What You'll Do

• Implement modern backend applications and infrastructure in a microservices architecture, using the latest technologies and development practices.
• Deep dive into the latest blockchain technology and become an expert in the fundamentals, protocols, and features of the chains we support.
• Collaborate effectively with developers, engineers, and other roles while demonstrating strong independent problem-solving abilities.
• Contribute to production reliability through on-call participation, incident response, and post-incident follow-ups.

What You'll Bring

• 5+ years of backend development experience in modern languages (Go, Python, JavaScript/TypeScript)
• 3+ years of hands-on blockchain development experience
• Experience working on high-scale distributed systems
• Understanding of microservices architecture and API design
• Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems
• Strong problem-solving skills and attention to detail
• Strong verbal and written communication skills and a collaborative mindset

Preferred

• Experience building blockchain solutions for enterprise or institutional use cases
• Understanding of security best practices for smart contracts and blockchain systems
• Demonstrated ability to apply AI tools in day-to-day development
• Understanding of MPC, multi-signature wallets, or other advanced cryptographic techniques
• Bachelor's degree in Computer Science, Engineering, or a related field
• Experience with Docker, Kubernetes, and Helm

About the team

The SRE team was recently formed with the goals of establishing first-class observability tools and primary owners of all things production.

Team members are located in several international locations (“follow the sun” model) to provide 24/7 availability.

We are a team of unique individuals, experienced and independent, who get things done.

This position is fully remote, candidates required to be in US Pacific time.

What You'll Do

As part of your role, you would improve and establish new monitoring, alerting, and observability of services using a wide range of tools. Additionally, you would handle critical alerts and incidents and work directly with R&D to improve and optimize availability.

• Research Fireblocks blockchain workflows, identify optimization opportunities, issues, and improve monitoring.
• Help identify root causes for incidents and prevent them from happening again. Solve and orchestrate outages by working with multiple teams.
• Improve and establish alerting for our infrastructure, services, and business logic
• Work closely with the R&D and Support: offering education and guidance on integration, support, and monitoring across the toolset
• Communicate and escalate issues to senior management in R&D and support, write RCAs, and define next steps.
• Document actions in runbooks and then into automation using Python, Lambda, shell scripts, ArgoCD, and Ansible.
• Focus on the system's observability, availability, reliability, performance/latency, and monitoring
• Conduct periodic on-call duties and emergency response

What You'll Bring

• At least 3+ years of experience as an SRE, Infra Backend in a SaaS environment.
• You are curious, self-motivated, easy to work with, responsible, and production-aware—fast learner and able to take a project from POC to production, while handling decision-making and communication.
• Experience with Coding languages - Python/JavaScript/Bash (Must)
• At least 3+ years of experience with Alerting & Monitoring systems such as DataDog, Coralogix / Splunk / New Relic / Prometheus
• Experience working with Linux systems from kernel to shell and beyond
• Cloud systems such as AWS / Google Cloud / Azure
• Configuration management, such as Ansible/Chef/Puppet/ArgoCD
• Experience with Docker, Kubernetes, and Helm
• SCM - Git/bitbucket/gitlab/Phabricator/gerrit
• High Analytical & Troubleshooting skills - ability to solve complex problems
• Strong verbal and written communication skills and a collaborative mindset

Want to stand out from the crowd?

• Previous experience in cryptocurrencies \ blockchains - a big advantage
• In-depth knowledge in: Linux optimization, nginx, ArgoCD, DataDog, MySQL
• Participated in Kubernetes migration projects
• Previous experience as a C++ or Node developer
• BSC in Computer Science or related technical certifications

For employees hired to work remotely from New York, or from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $150,000 - $185,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. 

While we believe competitive compensation is a critical aspect of your decision to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

About the team

The SRE Incident Response team is responsible for handling critical application\infrastructure alerts, orchestrating the war room process and enabling first class observability and alerting systems. 

Team members are located in several international locations (“follow the sun” model) to provide 24/7 availability.

We are a team of unique individuals, experienced and independent, who get things done.

On-call coverage is 7 days a week, starting at noon, with the shift ending at 6:00pm. 

This position is fully remote, candidates required to be in US Pacific time.

What You'll Do

As part of your role, you would improve and establish new monitoring, alerting, and observability of services using a wide range of tools. Additionally, you would handle critical alerts and incidents and work directly with engineering and DevOps to improve and optimize availability.

• Manage and participate in incident war rooms, escalating and coordinating response for critical workflow alerts.
• Perform deep-dive troubleshooting for application, transaction, and general technical issues.
• Research Fireblocks blockchain workflows, identify optimization opportunities, issues, and improve monitoring.
• Help identify root causes for incidents and prevent them from happening again. Solve and orchestrate outages by working with multiple teams.
• Improve and establish alerting for our infrastructure, services, and business logic
• Work closely with the R&D and Support: offering education and guidance on integration, support, and monitoring across the toolset
• Communicate and escalate issues to senior management in R&D and support, write RCAs, and define next steps.
• Document actions in runbooks and then into automation using Python, Lambda, shell scripts, ArgoCD, and Ansible.
• Focus on the system's observability, availability, reliability, performance/latency, and monitoring

What You'll Bring

• At least 3+ years of experience as an SRE incident response engineer
• You are curious, self-motivated, easy to work with, responsible, and production-aware—fast learner and able to take a project from POC to production, while handling decision-making and communication.
• Experience with Coding languages - Python/JavaScript/Bash (Must)
• At least 3+ years of experience with Alerting & Monitoring systems such as DataDog, Coralogix / Splunk / New Relic / Prometheus
• Experience working with Linux systems from kernel to shell and beyond
• Cloud systems such as AWS / Google Cloud / Azure
• Experience with Docker, Kubernetes, and Helm
• SCM - Git/bitbucket/gitlab
• High Analytical & Troubleshooting skills - ability to solve complex problems
• Strong verbal and written communication skills and a collaborative mindset

Want to stand out from the crowd?

• Previous experience in cryptocurrencies \ blockchains - a big advantage
• In-depth knowledge in: Linux optimization, nginx, ArgoCD, DataDog, MySQL
• Previous experience as a C++ or Node developer
• BSC in Computer Science or related technical certifications

For employees hired to work remotely from New York, or from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $150,000 - $185,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. 

While we believe competitive compensation is a critical aspect of your decision to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

Fireblocks is hiring a Senior Backend Engineer to join the Liquidity Team in Tel Aviv-Yafo, Israel.

Connecting exchanges, OTC desks, custodians, and wallets, the Fireblocks Network settles trillions in crypto trading volume, and delivers a seamless trading experience by reducing friction, unlocking capital efficiency and mitigating counterparty risk.

The Liquidity Team is dedicated to developing Fireblocks' trading solutions. Delivering a reliable, seamless, fast, and secure trading experience for users in both crypto and fiat assets.

What You'll Do

• Be a leading backend developer of one of the newest fintech products in Fireblocks.
• Mentor and guide other developers in complex designs,Work closely with other teams, lead meaningful cross functional features.
• Connect exchanges, leading 3rd party trading agencies and other providers, to create a multi-functional trading platform.
• Develop and optimize Fireblocks' trading API to ensure a seamless and scalable experience for our users.
• Research and implement cloud-native architectures to support Fireblocks' ongoing growth and scalability.

What You'll Bring

• At least 6 years of experience in backend development, with a focus on scalable infrastructure with proficiency in Node.js and TypeScript .
• Strong understanding of system design principles, distributed systems, and scalability.
• Proven track record of designing and deploying microservices-based architectures in production environments.
• Experience with monitoring and logging frameworks (e.g., Datadog, Prometheus, Grafana, ELK stack).

DeFi & Crypto Domain Knowledge (Must-Have)

• Solid understanding of blockchain fundamentals - transaction lifecycles, block confirmations, mempool mechanics, and finality across multiple chains (e.g., EVM-compatible chains, Solana, Bitcoin).
• Hands-on familiarity with DeFi protocols and primitives - including AMMs (e.g., Uniswap, Curve), liquidity pools, yield mechanisms, and on-chain order books.

Liquidity and Exchange knowledge (Nice to have)

• Understanding of crypto liquidity concepts - market making, order routing, slippage, price impact, and the differences between CEX and DEX liquidity.

• 5+ years of experience in Fullstack development, with a strong background in architecting and building complex & large web applications.
• Experience working with React & NodeJS and Typescript.
• A deep understanding of the cybersecurity world (Attack & Defense) - big advantage
• Experience with blockchain or cryptography - big advantage

What you’ll do

As a Senior Software Engineer, you will play a key role in developing and maintaining Fireblocks’ Nodes Access platform, including its applications, services, and underlying systems. You'll work with a modern backend tech stack, leveraging AI, microservices, databases, Kubernetes, Ansible, CI/CD, and more to build scalable and resilient solutions.

You will be responsible for:

• Implementing an AI framework to manage and orchestrate a fleet of services and blockchain RPC nodes, and building AI agents for enhanced platform capabilities.
• Implementing modern BE applications and infrastructure in a microservices architecture, utilizing common networking protocols, object-oriented design, and cutting-edge techniques - while leveraging work with AI Agents and Skills.
• Establishing a modern CI/CD pipeline in a microservices architecture, using best practices, tools, and techniques.
• Ensuring the robustness and maintainability of our BE services and the overall application.
• Collaborating effectively with other developers, engineers and other roles, while also showcasing independent problem-solving abilities.
• Demonstrating a strong command of the blockchains ecosystem in high-load scenarios while staying updated with the latest technologies and practices.
• Dive deep into the latest blockchains, seamlessly incorporate them into our product, and become an expert in the fundamentals, protocols and features of the blockchains.
• Ensuring that Fireblocks platform remains at the forefront of blockchain technology!

What You’ll Bring

To thrive in this role, you should bring the following qualifications and experience:

• Experience with AI technologies, such as Claude Code, Cursor and experience building AI tools like Claude Skills, headless agents, context improvements (RAG), bots, MCPs, etc.
• 5+ years of experience with scalable distributed systems in GoLang, TypeScript, Python.
• 3+ years of experience in managing live and high-volume production environments with a strong focus on reliability and operational excellence.
• Ability to quickly learn and adapt to new technologies and tools.
• Experience with AI pipelines, integrations and architectures.
• Strong problem-solving and analytical skills, capable of independently exploring, proposing, and implementing well-thought-out solutions.
• Demonstrated commitment to excellence, proactiveness, and driving for success.

Bonus Skills:

• Experience with Blockchains ecosystem.
• B.Sc. in Computer Science/Engineering or equivalent knowledge.
• Experience with Cloud Infrastructures.

Join us in shaping the future of digital asset security and blockchain innovation at Fireblocks! Apply now and be part of our journey towards a brighter, decentralized world.

About the Role

Fireblocks is seeking a highly technical, partner-facing Integration Engineer to join our Network team. In this role, you will be the primary technical driver for onboarding partners to the Fireblocks Network and maintaining quality and product excellence with existing partners. 

You aren't just following a manual; you are a technical consultant, a troubleshooter, and a bridge builder. You will work closely with R&D, Product, and Business, ensuring that every provider integration is seamless, secure, and scalable.

What You’ll Do

• Own the Integration Lifecycle: Lead partners from initial discovery through to production go-live, serving as their dedicated technical Point of Contact.
• Act as Tier 1 R&D: Deep-dive into the code to answer complex architectural questions. You’ll debug, write code, analyze API logs, and solve technical hurdles.
• Bridge the Gap: Translate business needs into technical requirements. You’ll help partners understand how to map their existing infrastructure to our protocol.
• Collaborate Cross-Functionally: Work hand-in-hand with Product to relay feedback from the field and with Business to ensure the provider’s commercial goals are met.
• Scale the Process: Develop technical documentation, tools, and integration best practices to streamline the onboarding process and making it more intuitive.

Who You Are

• Passionate About Tech: You can discuss technical details with R&D engineers as well as explain in simple terms to customers and partners. 
• Problem Solver: You have a "builder" mindset. You are customer-focused and proactive in finding a solution or mitigation to every issue that comes your way.
• Client-Centric: You understand that your success is directly tied to the success of our partners.

Qualifications

• B.Sc. in Computer Science or equivalent
• Experience: 2+ in Software engineering (ideally in FinTech, Cyber, or Crypto).
• Tech Stack: Strong proficiency with REST APIs, JSON, Webhooks, and at least one programming language such as; Java, C#, Typescript.
• Knowledge: Familiarity with digital assets, blockchain technology, or institutional finance workflows is highly preferred.
• Communication: Exceptional English communication skills, both written and verbal.

As part of Fireblocks, Dynamic represents the next evolution of non-custodial wallet infrastructure. Dynamic is Fireblocks’ embedded wallet platform, purpose-built for developers who want to bring crypto and stablecoin experiences into modern applications without complexity. Together, Fireblocks and Dynamic are building the most complete, secure, and developer-friendly wallet infrastructure in the industry by combining institutional-grade security with consumer-grade experiences.

About the Team

Dynamic was founded in 2021 with a simple vision: every app and website will have a wallet component. That vision is rapidly becoming reality. Wallets are no longer limited to crypto-native products, they are becoming foundational infrastructure for payroll, remittances, and global payments. Dynamic powers wallet-based experiences for leading crypto and fintech teams including Kraken, zerohash, Magic Eden, and more.

Dynamic builds and maintains developer-first SDKs that enable teams to seamlessly integrate embedded wallet functionality directly into their applications. These embedded wallets allow end users to create, manage, and use wallets without leaving the product experience, making wallets feel like a native part of modern fintech and crypto apps.

As part of Fireblocks, the Dynamic team continues to build and scale the infrastructure and developer tooling that has onboarded 50M+ wallets across crypto and fintech applications. In this context, Dynamic powers the application-layer wallet experience and developer tooling, complementing Fireblocks’ core custody, security, and transaction infrastructure. The team operates with a strong product mindset and deep focus on security, reliability, scalability, and exceptional developer experience. Engineers at Dynamic build secure-by-default systems and approach their work with a strong customer focus, balancing technical excellence with real-world user needs. You will be joining a passionate group that moves fast, works with the biggest names in payments and fintech, and is defining how the next generation of financial applications are built.

What You’ll Do

• Design and implement high-quality native mobile SDKs that enable developers to integrate embedded wallet functionality into their applications, with a strong focus on API ergonomics, performance, and reliability.
• Own SDK features end-to-end: from API design and architecture, through implementation and testing, to release, versioning, and developer documentation.
• Build and maintain secure, reliable SDK components for wallet operations, including cryptographic operations, blockchain interactions, and security-sensitive flows.
• Define and evolve the SDK architecture to support long-term maintainability, backward compatibility, and adoption across diverse customer applications.
• Build sample applications and demos that showcase SDK capabilities and serve as integration references for customers.
• Create clear, comprehensive SDK documentation and integration guides.
• Work with developer relations and support teams to address customer integration challenges.
• Raise the bar for quality and operational excellence by establishing best practices around testing, observability, releases, and code health.
• Contribute to a culture of ownership and execution, leading by example through hands-on work, code reviews, documentation, and knowledge sharing

What You’ll Bring

• 5+ years of software engineering experience, with deep focus on mobile development and shipping production-grade SDKs
• Demonstrated track record of building and shipping high-quality code, with work you can point to and discuss in depth
• Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); experience with React Native or other cross-platform frameworks, and familiarity with all.
• Experience building mobile SDKs or shared libraries, including API design, versioning, packaging, and long-term maintenance across platforms.
• Experience with blockchain-enabled mobile systems, including wallet flows, signing, and on-chain interactions.
• Experience working on security-sensitive mobile software, such as key management, secure storage, cryptography, or financial products.
• Strong grasp of mobile engineering best practices, including CI/CD, automated testing, release management, and observability.
• A get-things-done mindset with the ability to independently own problems and deliver end-to-end solutions.
• Comfortable making long-term architectural decisions while remaining pragmatic and adaptable.
• B.Sc. in Computer Science / Engineering or equivalent practical experience.
• Remote role in a distributed team; preference for candidates in the Americas time zone

Big Advantages

• Rust and/or WebAssembly (Wasm) experience, particularly building cross-platform SDKs consumed by mobile apps.
• Experience designing shared core logic used across iOS and Android.
• Experience with advanced mobile security primitives (secure hardware, MPC, low-level crypto).
• Prior experience owning or founding a mobile platform or SDK from scratch.

For employees hired to work from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City, and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $177,000 to $230,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. While we believe competitive compensation is a critical aspect of you deciding to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

As part of Fireblocks, Dynamic represents the next evolution of non-custodial wallet infrastructure. Dynamic is Fireblocks’ embedded wallet platform, purpose-built for developers who want to bring crypto and stablecoin experiences into modern applications without complexity. Together, Fireblocks and Dynamic are building the most complete, secure, and developer-friendly wallet infrastructure in the industry by combining institutional-grade security with consumer-grade experiences.

About the Team

Dynamic was founded in 2021 with a simple vision: every app and website will have a wallet component. That vision is rapidly becoming reality. Wallets are no longer limited to crypto-native products, they are becoming foundational infrastructure for payroll, remittances, and global payments. Dynamic powers wallet-based experiences for leading crypto and fintech teams including Kraken, zerohash, Magic Eden, and more.

Dynamic builds and maintains developer-first SDKs that enable teams to seamlessly integrate embedded wallet functionality directly into their applications. These embedded wallets allow end users to create, manage, and use wallets without leaving the product experience, making wallets feel like a native part of modern fintech and crypto apps.

As part of Fireblocks, the Dynamic team continues to build and scale the infrastructure and developer tooling that has onboarded 50M+ wallets across crypto and fintech applications. In this context, Dynamic powers the application-layer wallet experience and developer tooling, complementing Fireblocks’ core custody, security, and transaction infrastructure. The team operates with a strong product mindset and deep focus on security, reliability, scalability, and exceptional developer experience. Engineers at Dynamic build secure-by-default systems and approach their work with a strong customer focus, balancing technical excellence with real-world user needs. You will be joining a passionate group that moves fast, works with the biggest names in payments and fintech, and is defining how the next generation of financial applications are built.

What You’ll Do

• Design and implement high-quality native mobile SDKs that enable developers to integrate embedded wallet functionality into their applications, with a strong focus on API ergonomics, performance, and reliability.
• Own SDK features end-to-end: from API design and architecture, through implementation and testing, to release, versioning, and developer documentation.
• Build and maintain secure, reliable SDK components for wallet operations, including cryptographic operations, blockchain interactions, and security-sensitive flows.
• Define and evolve the SDK architecture to support long-term maintainability, backward compatibility, and adoption across diverse customer applications.
• Build sample applications and demos that showcase SDK capabilities and serve as integration references for customers.
• Create clear, comprehensive SDK documentation and integration guides.
• Work with developer relations and support teams to address customer integration challenges.
• Raise the bar for quality and operational excellence by establishing best practices around testing, observability, releases, and code health.
• Contribute to a culture of ownership and execution, leading by example through hands-on work, code reviews, documentation, and knowledge sharing.

What You’ll Bring

• 5+ years of software engineering experience, with deep focus on mobile development and shipping production-grade SDKs.
• Demonstrated track record of building and shipping high-quality code, with work you can point to and discuss in depth.
• Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); experience with React Native or other cross-platform frameworks, and familiarity with all.
• Experience building mobile SDKs or shared libraries, including API design, versioning, packaging, and long-term maintenance across platforms.
• Experience with blockchain-enabled mobile systems, including wallet flows, signing, and on-chain interactions.
• Experience working on security-sensitive mobile software, such as key management, secure storage, cryptography, or financial products.
• Strong grasp of mobile engineering best practices, including CI/CD, automated testing, release management, and observability.
• A get-things-done mindset with the ability to independently own problems and deliver end-to-end solutions.
• Comfortable making long-term architectural decisions while remaining pragmatic and adaptable.
• B.Sc. in Computer Science / Engineering or equivalent practical experience.
• Remote role in a distributed team; preference for candidates in the Americas time zone.

Big Advantages

• Rust and/or WebAssembly (Wasm) experience, particularly building cross-platform SDKs consumed by mobile apps.
• Experience designing shared core logic used across iOS and Android.
• Experience with advanced mobile security primitives (secure hardware, MPC, low-level crypto).
• Prior experience owning or founding a mobile platform or SDK from scratch.

For employees hired to work from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City, and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs.

It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is $177,000 to $230,000. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. While we believe competitive compensation is a critical aspect of you deciding to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are.

This is an opportunity to lead the core technology that is onboarding millions to the future of finance. As part of Fireblocks, the leading platform for securing digital assets, dynamic.xyz is positioned at the intersection of enterprise security and consumer accessibility. Our combined entity is setting the new standard for best-in-class custodial and non-custodial solutions globally. Fireblocks and Dynamic provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including Stripe, Circle, Zerohash,  BNY Mellon, BNP Paribas, ANZ Bank, Revolut, Magic Eden, and thousands more. 

The Director of Engineering for Platform will own the complex, highly-distributed systems required to deliver this vision at massive scale.

About The Team

Founded in 2021, Dynamic's vision is that every app and website will integrate a wallet component, viewing wallets as foundational infrastructure for use cases like payroll, remittances, and global payments.

The product centers on developer-first SDKs enabling seamless embedded wallet functionality. These wallets allow end users to create, manage, and use wallets without leaving the application.

Dynamic has onboarded over 50 million wallets. Within the joint entity, Dynamic focuses on the application-layer wallet experience and developer tooling, complementing Fireblocks’ core custody, security, and transaction infrastructure. The team emphasizes a strong product mindset, secure-by-default systems, and exceptional developer experience.

The Platform team is the core engine of dynamic.xyz's backend, building and maintaining highly reliable, scalable, and secure foundational services. This includes the mission-critical Wallet-as-a-Service (WAAS), the core Authentication Platform, and essential services like Balances, Events, and many integrations. This high-growth area directly impacts the goal of onboarding millions more people.

What You'll Do

As the Director of Engineering for Platform, you will be a visionary hands-on leader. You will:

• Strategic & Technical Leadership: Define the long-term technical roadmap, architecture, and standards for the Platform team, ensuring unparalleled scale, security, and resiliency.
• Hands-On Ownership & Technical Activity: Maintain a high level of technical engagement and remain actively hands-on, contributing to critical design reviews, setting coding standards, and demonstrating a genuine passion for writing and shipping code.
• System Scaling & Delivery: Oversee the design and implementation of highly complex distributed systems capable of handling massive transactional volume and user growth, demonstrating a great track record of delivering software at high velocity.
• Team Management & Growth: Lead, mentor, and expand a high-performing engineering organization.
• Customer & Developer Focus: Work closely with our customers, understanding their technical needs, gathering feedback, and ensuring the platform meets their requirements for integration and performance.
• Innovation & Technology: Drive the adoption of modern engineering practices, including leveraging latest AI models and technology to enhance platform efficiency, security, and feature development.

What You'll Bring

• 5+ years of engineering management experience, leading multiple teams and consistently delivering complex initiatives on schedule in time-sensitive environments.
• 10+ years of hands-on experience in backend development, architecting and operating large-scale, complex, and highly-secure distributed systems.
• Exceptional focus on Security: Experience architecting or building platforms where the design required thinking deeply about security and attack vectors (e.g., in finance, payments, crypto, or authentication).
• Deep expertise in one or more of the following sectors: Crypto/Web, Financial Services, or High-Security/Authentication Platforms.
• Demonstrated experience in scaling platforms to support millions of users and high throughput transaction volumes.
• Proven ability to attract, hire, and develop top-tier engineering talent, with a focus on growing senior and principal-level engineers.
• Strong technical foundation and the ability to influence architecture, including familiarity with modern development paradigms and cloud technologies.
• Proficiency in TypeScript and AWS infrastructure (experience with TEE big plus)

Founded in 2018, Fireblocks is the platform of choice for major financial institutions, banks, and globally recognized companies looking to scale their digital asset operations. We combine MPC-based wallet infrastructure with a best-in-class custody and settlement network, and we're trusted to secure hundreds of billions in assets. With offices in New York, London, Tel Aviv, and Singapore, we're growing our engineering teams to support customers at a global scale.

About the Role

Join the Blockchain Backend Infrastructure team and take a position in building and maintaining Fireblocks's blockchain management platform. You'll be responsible for building cutting-edge blockchain infrastructure while implementing high-throughput, real-time scalable software solutions.

As a Blockchain Engineer, you will be instrumental in the research and integration of blockchain technologies into the Fireblocks platform. Your responsibilities will include collaborating closely with foundations and developers to gain a deep understanding of blockchain protocols and on-chain projects, then applying that knowledge to implement new features within the platform.

You will focus equally on external protocol integration patterns and internal wallet infrastructure. This role serves as a technical bridge between raw on-chain capabilities and the wallet features delivered to our customers.

What You'll Do

• Implement modern backend applications and infrastructure in a microservices architecture, using the latest technologies and development practices.
• Deep dive into the latest blockchain technology and become an expert in the fundamentals, protocols, and features of the chains we support.
• Collaborate effectively with developers, engineers, and other roles while demonstrating strong independent problem-solving abilities.
• Contribute to production reliability through on-call participation, incident response, and post-incident follow-ups.

What You'll Bring

• 5+ years of backend development experience in modern languages (Go, Python, JavaScript/TypeScript)
• 3+ years of hands-on blockchain development experience
• Experience working on high-scale distributed systems
• Understanding of microservices architecture and API design
• Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems
• Strong problem-solving skills and attention to detail
• Strong verbal and written communication skills and a collaborative mindset

Preferred

• Experience building blockchain solutions for enterprise or institutional use cases
• Understanding of security best practices for smart contracts and blockchain systems
• Demonstrated ability to apply AI tools in day-to-day development
• Understanding of MPC, multi-signature wallets, or other advanced cryptographic techniques
• Bachelor's degree in Computer Science, Engineering, or a related field
• Experience with Docker, Kubernetes, and Helm

About the team

The KMS team sits at the very heart of Fireblocks’ platform and is a pivotal team in the company.

The team is responsible for the cryptographic backbone of the platform that secures customers’ most sensitive secrets. Every transaction signing flow. Every cosigner interaction. Every key generation ceremony. Every backup and recovery mechanism. If it touches a private key - it touches this team.

The team performs mission-critical engineering at high scale, working on systems where failure is not an option, security is existential, performance matters and correctness is everything. The work is deep, challenging, and intellectually demanding - blending modern C++ systems programming with distributed backend architecture and applied cryptography.

If you enjoy solving problems where security, scale, distributed systems, and adversarial thinking collide - this is your kind of challenge.

What You'll Do:

You’ll collaborate with backend engineers, infrastructure teams and security and cryptography researchers to ship production-grade highly secure digital signing systems, balancing cryptographic rigor, performance constraints, and distributed reliability in a domain where small mistakes have massive consequences. This includes:

• Architecting, designing and implementing distributed backend services responsible for key generation, storage and lifecycle management
• Developing high-assurance signing protocols and signing flows (utilizing MPC or external signing devices)
• Building secure backup and disaster recovery mechanisms for cryptographic material
• Hardening systems against adversarial conditions and real-world attack vectors
• Optimizing performance-critical components that execute complex operations

What You'll Bring:

• 7+ years of strong backend experience in production systems
• Experience building large-scale backend or distributed systems (SaaS experience strongly preferred)
• Experience working with distributed SQL DBs
• Experience working with cloud and backend technologies (e.g. Docker, K8S, AWS, Azure, DataDog, Prometheus)
• Deep understanding of concurrency, memory management, system design, and performance optimization
• Experience working on mission-critical or high-reliability platforms
• A strong security engineering mindset

Strong Advantage

• Experience with TypeScript 
•  Experience with multiple development environments, languages and paradigms
• Experience with cryptography, MPC, threshold signatures, or key management systems
• Familiarity with blockchain technologies
• Experience with confidential computing technologies
• Experience integrating with HSMs or secure enclaves
• Background in highly security-sensitive environments

As part of Fireblocks, Dynamic represents the next evolution of non-custodial wallet infrastructure. Dynamic is Fireblocks’ embedded wallet platform, purpose-built for developers who want to bring crypto and stablecoin experiences into modern applications without complexity. Together, Fireblocks and Dynamic are building the most complete, secure, and developer-friendly wallet infrastructure in the industry by combining institutional-grade security with consumer-grade experiences.

About the Team

Dynamic was founded in 2021 with a simple vision: every app and website will have a wallet component. That vision is rapidly becoming reality. Wallets are no longer limited to crypto-native products, they are becoming foundational infrastructure for payroll, remittances, and global payments. Dynamic powers wallet-based experiences for leading crypto and fintech teams including Kraken, zerohash, Magic Eden, and more.

Dynamic builds and maintains developer-first SDKs that enable teams to seamlessly integrate embedded wallet functionality directly into their applications. These embedded wallets allow end users to create, manage, and use wallets without leaving the product experience, making wallets feel like a native part of modern fintech and crypto apps.

As part of Fireblocks, the Dynamic team continues to build and scale the infrastructure and developer tooling that has onboarded 50M+ wallets across crypto and fintech applications. In this context, Dynamic powers the application-layer wallet experience and developer tooling, complementing Fireblocks’ core custody, security, and transaction infrastructure. The team operates with a strong product mindset and deep focus on security, reliability, scalability, and exceptional developer experience. Engineers at Dynamic build secure-by-default systems and approach their work with a strong customer focus, balancing technical excellence with real-world user needs. You will be joining a passionate group that moves fast, works with the biggest names in payments and fintech, and is defining how the next generation of financial applications are built.

What You’ll Do

• Design and implement high-quality native mobile SDKs that enable developers to integrate embedded wallet functionality into their applications, with a strong focus on API ergonomics, performance, and reliability.
• Own SDK features end-to-end: from API design and architecture, through implementation and testing, to release, versioning, and developer documentation.
• Build and maintain secure, reliable SDK components for wallet operations, including cryptographic operations, blockchain interactions, and security-sensitive flows.
• Define and evolve the SDK architecture to support long-term maintainability, backward compatibility, and adoption across diverse customer applications.
• Build sample applications and demos that showcase SDK capabilities and serve as integration references for customers.
• Create clear, comprehensive SDK documentation and integration guides.
• Work with developer relations and support teams to address customer integration challenges.
• Raise the bar for quality and operational excellence by establishing best practices around testing, observability, releases, and code health.
• Contribute to a culture of ownership and execution, leading by example through hands-on work, code reviews, documentation, and knowledge sharing.

What You’ll Bring

• 5+ years of software engineering experience, with deep focus on mobile development and shipping production-grade SDKs.
• Demonstrated track record of building and shipping high-quality code, with work you can point to and discuss in depth.
• Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); experience with React Native or other cross-platform frameworks, and familiarity with all.
• Experience building mobile SDKs or shared libraries, including API design, versioning, packaging, and long-term maintenance across platforms.
• Experience with blockchain-enabled mobile systems, including wallet flows, signing, and on-chain interactions.
• Experience working on security-sensitive mobile software, such as key management, secure storage, cryptography, or financial products.
• Strong grasp of mobile engineering best practices, including CI/CD, automated testing, release management, and observability.
• A get-things-done mindset with the ability to independently own problems and deliver end-to-end solutions.
• Comfortable making long-term architectural decisions while remaining pragmatic and adaptable.
• B.Sc. in Computer Science / Engineering or equivalent practical experience.
• Remote role in a distributed team; preference for candidates in the Americas time zone.

Big Advantages

• Rust and/or WebAssembly (Wasm) experience, particularly building cross-platform SDKs consumed by mobile apps.
• Experience designing shared core logic used across iOS and Android.
• Experience with advanced mobile security primitives (secure hardware, MPC, low-level crypto).
• Prior experience owning or founding a mobile platform or SDK from scratch.

We are looking for a Senior Engineer to build and scale security infrastructure for our Transaction Threat Protection team, protecting customer transactions in real time. 

This role sits at the intersection of high-volume transaction security and decentralized finance (DeFi), requiring an engineer who balances deep technical execution with a strong product mindset.

What You’ll Do

• Systems Architecture: Design and maintain scalable, secure cloud infrastructure capable of processing high-velocity financial data.
• Security Engineering: Develop automated systems to detect and mitigate threats within both traditional payment flows and DeFi protocols (Smart Contracts/Web3).
• AI-Augmented Development: Integrate the latest AI tools (e.g., Claude Code, Cursor, Copilot, LLM-based analysis) into your workflow to increase engineering velocity and security coverage.
• Product Ownership: Partner with product teams to ensure security features provide a seamless user experience without compromising safety.

What You’ll Bring

• Cloud & Web Expertise: Extensive experience building and deploying production-grade applications on major cloud providers (AWS/GCP/Azure).
• Full-Stack Proficiency: Strong background in modern web development frameworks and a deep understanding of web security protocols.
• Modern Tooling: High proficiency with AI-assisted coding and automated testing tools. You see AI as a core component of the modern development lifecycle.
• Product Orientation: Ability to move beyond "code-to-spec" and contribute to the product roadmap based on technical feasibility and user impact.
• [Optional] DeFi Knowledge: Experience with, or a strong technical interest in, the security challenges unique to DeFi and blockchain ecosystems.

Why This Team?

• High Stakes: You are building the primary defense for users' assets in both traditional and decentralized systems.
• Engineering Culture: We prioritize clean architecture, automated testing, and the adoption of cutting-edge development tools.
• Autonomy: You will own major components of the security stack from design through to production.

About the team

The KMS team sits at the very heart of Fireblocks’ platform and is a pivotal team in the company.

The team is responsible for the cryptographic backbone of the platform that secures customers’ most sensitive secrets. Every transaction signing flow. Every cosigner interaction. Every key generation ceremony. Every backup and recovery mechanism. If it touches a private key - it touches this team.

The team performs mission-critical engineering at high scale, working on systems where failure is not an option, security is existential, performance matters and correctness is everything. The work is deep, challenging, and intellectually demanding - blending modern C++ systems programming with distributed backend architecture and applied cryptography.

If you enjoy solving problems where security, scale, distributed systems, and adversarial thinking collide - this is your kind of challenge.

What You'll Do:

You’ll collaborate with backend engineers, infrastructure teams and security and cryptography researchers to ship production-grade highly secure digital signing systems, balancing cryptographic rigor, performance constraints, and distributed reliability in a domain where small mistakes have massive consequences. This includes:

• Architecting, designing and implementing distributed backend services responsible for key generation, storage and lifecycle management
• Developing high-assurance signing protocols and signing flows (utilizing MPC or external signing devices)
• Building easy to use, secure backup and disaster recovery mechanisms for cryptographic material
• Hardening systems against adversarial conditions and real-world attack vectors
• Optimizing performance-critical components that execute complex operations
• Providing visible value to customers by constant product optimisation
• Winning new customers with industry leading flexible deployments

What You'll Bring:

• Must-Have

  • 5+ years of strong C++ experience in production systems
  • 3+ years of experience in any other high-level programming language
  • Experience working inside an Agile R&D organization that delivers value fast
  • Experience building large-scale backend or distributed systems (SaaS experience strongly preferred)
  • Hands-on experience working with AI tools and the ability to effectively prompt, integrate, and build workflows around AI assistants
  • Critical AI judgment: the ability to challenge, validate, and override AI-generated output especially in security-sensitive or correctness-critical contexts
  • Experience working with SQL DBs
  • Experience working with cloud and backend technologies (e.g. Docker, K8S, AWS, Azure, DataDog, Prometheus)
  • Deep understanding of concurrency, memory management, system design, and performance optimization
  • Experience working on mission-critical or high-reliability platforms
  • A strong security engineering mindset
  • Proven capability to understand and take part in novel research: either in industry or by having any scientific academic degrees  
  
  

  Strong Advantage

  • Familiarity with the blockchain ecosystem
  • Familiarity with product components hosted on-premise 
  • Experience integrating with HSMs or Trusted Execution Environments (confidential computing) 
  • Background in either highly security-sensitive environments, Kernel development or cyber-security