At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive.

Lyft connects people to transportation to change the way we live and get around our communities. Lyft’s engineering team is growing rapidly, and we are looking for Technical Program Managers to help us scale. Come be part of a new team at Lyft focused on enabling and empowering engineering teams to deliver at scale.

Our drivers and passengers entrust Lyft with their personal information and travel details to get where they're going and expect us to keep that data safe. Lyft's security team leads efforts across the company to ensure our systems are secure and worthy of our users' trust.

The security team designs and builds Lyft's security architecture, consult with other teams as they build and launch new products and features, proactively plans for the unexpected, and responds to incidents that occur. Our work affects the entire company and takes place at all levels of the stack, from infrastructure to web application security, as well as mobile apps, IT, and autonomous vehicles. We try to approach security from a software engineering standpoint. We believe in scaling security through automation and tooling and we ship frequently. Check out our blog posts at https://eng.lyft.com/tagged/security to learn more about some of the things we’ve built.

We’re looking for the right person to join our team to perform service and application security review, and move us along our maturity journey. In order to be scalable, each secure product quality gate must be automated and integrated into our software release pipeline. Our grand vision is a fully automated series of quality controls that constantly validate that our code is secure. In short, we’re building a robot army that constantly validates our current security status. Don’t you want to live in this beautiful world?

Responsibilities:

• Architect and build services that improve the security of our systems with an eye towards scalability and avoiding unnecessary friction
• Partner with IT and infrastructure teams to design, build, and maintain performant authentication and authorization systems that balance security with user experience
• Own the security posture of identity infrastructure, including SSO implementations, MFA strategies, access provisioning workflows, and identity lifecycle management
• Share knowledge by giving brown bags, tech talks, and evangelizing appropriate tech and engineering best practices
• Collaborate with teams across Lyft to ensure security best practices are leveraged as we roll out new features and expand our service offerings
• Conduct penetration testing, code review and breach readiness across our online and mobile infrastructure
• Proactively research new attack vectors that may affect Lyft
• Research and implement automated code security quality gates
• Build and maintain relationships with key partners both internally and externally

Experience:

• 5+ years of software engineering experience with a high level programming language (bonus points for experience with Python, Go-lang and shell scripts)
• 3+ years of experience with computer security (or a deep interest in)
• Identity and Access Management (IAM) security experience with platforms such as Okta, Duo Security, Microsoft Entra ID (Azure AD), or similar identity providers
• Experience securing identity protocols and standards (OAuth 2.0, OIDC, SAML, SCIM, JWT)
• When facing a problem that's poorly defined or outside of your expertise, you can quickly learn what you need to dig in, make sense of the problem, and start working towards a solution
• You're a great communicator, and can advocate for your proposals while also empathizing with your teammates' goals and priorities
• You understand that security work must be prioritized because all teams have finite resources. You have good judgment and a sense of when to compromise and when to hold your ground
• Self-motivated with ability to work independently with minimal supervision
• Threat modeling, code review, penetration testing against cloud environments and/or mobile (IOS/Android)
• Conduct code review against one or many of the following languages
• Python
• Go
• Java
• Swift / Objective C
• Development skills to automate code security assessments
• Computer networking concepts and protocols, application and network security methodologies
• Network security architecture concepts including topology, protocols, components, and principles (e.g., application of defense-in-depth)
• Present findings, recommendations and results to leadership
• Ability to communicate complex information, concepts, or ideas in a confident and well-organized manner through verbal, written, and/or visual means
• Ability to manage multiple tasks and priorities
• Ability to work independently with minimal supervision

Please submit your resume in English.

With millions of diners, 60,000+ restaurant partners and 25+ years of experience, OpenTable, part of Booking Holdings, Inc. (NASDAQ: BKNG), is an industry leader with a passion for helping restaurants thrive. Our world-class technology empowers restaurants to focus on what matters most – their team, their guests, and their bottom line – while enabling diners to discover and book the perfect restaurant for every occasion. 

Every employee at OpenTable has a tangible impact on what we do and how we do it. You’ll also be part of a global team that includes its portfolio of metasearch brands. Hospitality is all about taking care of others, and it defines our culture.

OpenTable Billing is seeking a detail-oriented and customer-focused Billing Support Specialist to join our Customer Support team. This role plays a critical part in ensuring billing accuracy, resolving customer inquiries, supporting revenue operations, and managing collections activities. This is an excellent opportunity for a motivated professional seeking to contribute to a dynamic team while developing expertise in billing operations, collections, and customer account management. The ideal candidate combines strong financial acumen with exceptional customer service skills and thrives in a fast-paced, goal-driven environment.

Please note this is a Hybrid role, 3 days required in office, 2 days remote. 

Billing Support & Customer Assistance

• Manage inbound and outbound communications related to billing inquiries, providing accurate and timely resolutions.
• Assist customers in understanding invoices, charges, credits, and payment terms.
• Investigate and resolve complex account discrepancies and accounting-related inquiries.
• Collaborate cross-functionally with Finance, Sales, and Support teams to ensure consistent and accurate communication.
• Address billing disputes with urgency and professionalism, ensuring concerns are resolved in a way that reinforces trust and long-term partnership.
• Take full ownership of assigned billing and collections cases from initial inquiry through final resolution, ensuring timely and accurate follow-through.

Collections

• Conduct collections outreach via phone and email while maintaining positive customer relationships.
• Negotiate payment arrangements when appropriate and ensure timely resolution of past-due accounts.
• Document all collection activities thoroughly and maintain accurate account records.

Financial Processing

• Process ACH and credit card payments accurately and efficiently.
• Enter and reconcile account adjustments to maintain precise financial records.
• Perform customer information reconciliation across multiple systems and databases.
• Maintain organized and accurate customer documentation.

Problem-Solving & Operational Excellence

• Identify root causes of billing and payment issues and recommend process improvements.
• Provide proactive solutions aimed at reducing churn and improving overall customer satisfaction.
• Demonstrate initiative in resolving issues independently while partnering effectively with internal stakeholders.
• Deliver a high-quality support experience that balances financial stewardship with customer empathy, contributing directly to reduced churn and improved customer satisfaction.
• Proactively identify accounts at risk of churn due to billing concerns, payment challenges, or account dissatisfaction, and take appropriate action to resolve issues before escalation.

Apply if

• Expert-level familiarity with OpenTable products and operational processes, demonstrating your in-depth product knowledge.
• Strong knowledge of billing processes, accounts receivable, and collections practices.
• Exceptional attention to detail and high level of accuracy.
• Proven ability to manage multiple priorities in a fast-paced environment.
• Strong verbal and written communication skills, with the ability to handle sensitive financial discussions professionally.
• Swift issue comprehension and efficient problem-solving, showcasing your commitment to timely resolutions.
• Outstanding organizational skills, encompassing task prioritization and effective time management.
• Commitment to punctuality, schedule adherence, and maintaining performance standards.
• Have experience with disputes and negotiating payment resolutions.
• Ability to analyze financial data and resolve discrepancies efficiently.

Benefits and Perks

• Work from (almost) anywhere for up to 20 days per year
• Focus on mental health and well-being:
• Company-paid therapy sessions through SpringHealth
• Company-paid subscription to Headspace
• Company-wide week off a year - the whole team fully recharges (and returns without a pile-up of work!)
• Paid parental leave
• Generous paid vacation + time off for your birthday
• Paid volunteer time
• Focus on your career growth:
• Development Dollars
• Leadership development
• Access to thousands of on-demand e-learnings
• Travel Discounts
• Employee Resource Groups
• Christmas Bonus - 30 days
• 20 days of paid time off a year
• 25% vacation premium
• Private health, dental, and life insurance
• Monthly social events and happy hours

Work Environment & Flexibility

At OpenTable, we pride ourselves on fostering a global and dynamic work environment. As a team member with us, you will benefit from a schedule tailored to accommodate a global workforce operating across multiple time zones. While the majority of your responsibilities may align with conventional business hours, there will be instances where you are expected to manage communications - via calls, Slack messages, or emails - outside of regular working hours to effectively collaborate with international colleagues, respond to restaurant partners, and/or address urgent matters. OpenTable will always abide by and consider local laws and regulations.

Inclusion

We’re committed to creating a workplace where everyone feels they belong and can thrive. We know the best ideas come when we bring different voices to the table, so we're building a team as dynamic as the diners and restaurants we serve—and fostering a culture where everyone feels welcome to be themselves.

If you need accommodations during the application or interview process, or on the job, we’re here to support you. Please reach out to your recruiter to request any accommodations.

The salary range for this role is 3,500 - $6,000 per month (Gross in USD)

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Mobile Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

Compensation

The compensation range for the role is as follows:

• 3,500 - $6,000 per month (Gross in USD)

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What You'll Do:

• Help own and build out new features within our cross-platform TypeScript React Native app, and Golang backend APIs.
• Manage our releases, using tools like cohorting, feature flags, and app-store infrastructure to ensure a safe rollout to our millions of active users.
• Maintain a strong working relationship with product, design, and the business to ensure stakeholder needs are being evaluated and met.
• Work with the team to continuously build clean, scalable, robust, and testable code.
• Develop a deep working knowledge of your application, data domain, and KPIs.

What We Look For:

• 3+ years of professional mobile development experience, with at least 2+ years in React Native or similar technology such as Flutter.
• Experience working with native code on iOS (Swift/ObjC) and Native Android (Kotlin/Java).
• Experience developing and delivering a mobile application to Apple and Google’s mobile app stores.
• Deep understanding of React Native architecture, hooks, context, navigation patterns, and performance optimization.
• Strong familiarity with unit testing, integration testing, and E2E testing (Jest, React Native Testing Library, Detox, Appium, etc.).
• Ability to lead features end-to-end — from requirements, design, implementation, deployment, monitoring, and improvement.
• Experience mentoring junior or mid-level engineers.
• Capable of performing high-quality code reviews with focus on maintainability, clarity, and best practices.
• Drives technical decisions, proposes improvements, and elevates code quality across the team.
• Works well with product managers, designers, backend teams, and QA.
• Bachelor's degree in computer science
• Knowledge of mobile CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, etc.).

Preferred Knowledge and Skills:

• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end), and implementing them in a CI environment.
• Ability to solve problems with backend-focused languages like Go, Python, Java or similar.
• Familiarity with typical microservice architecture composed of HTTP APIs.
• Experience working with native code on iOS, Android.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote #Full-time

About the role

In the role of Software Engineer II, you will report to the Engineering Manager - Mobile Video Players.

As a Software Engineer on our Apple video player team, you will actively contribute to the design, development, and optimization of our Apple video player library. You will take ownership of key features and improvements, ensuring high-quality code and performance. You'll collaborate closely with Engineering, Program Management, Product, and QA teams to help shape our technology roadmap and achieve our goals. You'll be a part of an international team of 100+ client engineers, where your contributions will help maintain Crunchyroll's position as the premiere Anime streaming service.

We are considering applicants for the location(s) of Mexico City, MX

Core Areas of Responsibility

• Contribute to the design and implementation of software solutions for mobile video player development
• Collaborate on the definition and development of technical solutions that improve existing features or enhance architectural quality, such as optimizing performance, scalability, and user experience for Crunchyroll’s video player.
• Identify performance bottlenecks and areas of improvement in the codebase that impact user experience or development efficiency, and work with senior engineers to propose and implement solutions.
• Maintain high coding standards and follow best practices in Swift development, contributing to a culture of engineering excellence within the team.
• Participate in design and code reviews, providing feedback to ensure high-quality product delivery and alignment with architectural strategies across the team.
• Support a culture of operational excellence by focusing on efficient and maintainable engineering practices in your day-to-day work.
• Stay updated on industry trends and mobile development technologies by researching and comparing new tools and frameworks to help keep our video player platform competitive.

About You

We get excited about candidates, like you, because...

• You are passionate about application development and the streaming space, with 3-5 years of industry experience developing in Swift.
• You are committed to upholding excellence in operations, delivery, and engineering practices.
• You have experience developing and maintaining consumer-facing mobile applications.
• You have worked closely with product and program management to support technology roadmaps and project goals.
• You can demonstrate experience collaborating with senior engineers and team leads to drive mobile development initiatives.
• You apply sound judgment to balance trade-offs between performance, scalability, and user experience.

Nice to Haves

• You have contributed to Swift solutions that serve millions of global users.
• You have familiarity with multimedia frameworks and protocols like MPEG-DASH, HLS, and video streaming technologies.

About the Team

The "Video Player" team is a growing team of international engineers and technology leaders passionate about providing a world class streaming experience for our millions of Anime fans across the world. We provide and maintain solutions on all major device platforms. Your contributions on this team are front and center to our millions of fans, affecting the daily success of our company.

Why you will love working at Crunchyroll

In addition to getting to work with fun, passionate and inspired colleagues, you will also enjoy the following benefits and perks:

• Receive a great compensation package including salary plus performance bonus earning potential, paid annually.
• Generous time off policies.
• Generous medical, dental, vision, and life insurance
• Support program for new parents

• Pet insurance and some of our offices are pet friendly!

#LifeAtCrunchyroll #LI-Hybrid 

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Who we are

We’re a passionate engineering, platform, and operations team, developing and supporting ground-breaking products. Together, we’ll build for the future, creating more opportunities for wellness businesses around the world to help their customers lead full, healthy lives. We push ourselves and our company to always strive for this higher purpose, recognizing the power in working together toward the same goal. We believe in building a diverse company where everyone feels safe bringing their authentic selves to work. And we believe that the secret to success is our people.  Join the team, and let’s see what we can accomplish together!  

You'll likely spend time working on

• Serves as a self-directed, key contributor to code development on features and bugs to produce successful team sprints
• Makes implementation design decisions around new feature components
• Produces contingency plans for critical projects
• Analyzes technical requirements with the team to gauge level of effort
• Breaks down complex projects and delegates work to junior engineers
• Brainstorms with Product Managers and designers to conceptualize and estimate new features
• Collaborates with backend engineers to efficiently build out new API for mobile apps
• Carefully analyzes design specifications before coding to understand effort levels required
• Creates technical documentation for new features that can be easily understood by peers
• Writes and executes tests for your own code, including creating comprehensive unit tests
• Performs peer code reviews to ensure quality of the codebase
• Keeps abreast of new technologies
• Ensures designs and projects created comply with design library guidelines, internal best practices, and coding conventions when applicable
• All other duties as assigned

You'll thrive in this role with experience in

• Proficient with Objective-C, Swift, SWIFTUI, Xcode, Cocoa Touch and UIKit.
• Experience with iOS frameworks such as Core Data, Core Animation, etc.
• Experience with performance and memory tuning with tools such as Instruments.
• Familiarity with cloud message APIs and push notifications.
• Proficient understanding of code versioning tools such as Git.
• Categories/Protocols/Patterns (MVVM, MVC, Clean in iOS, Delegate/Protocol/etc).
• Solid understanding of the full mobile development life cycle.
• Familiarity with RESTful APIs to connect iOS applications to back-end services.
• Understanding of Apple’s design principles and interface guidelines.
• Experience in using swift package manager.
• Experience with performance and memory tuning with tools (such as Instruments etc depending on project needs}.
• Unit and UI Testing code for robustness, including edge cases, usability, and general reliability
• Expertise in building complex layouts.
• Strong UI and design skills.
• Familiar with software development lifecycle (SDLC) and programming design patterns
• Skillful at reviewing new feature impact on an application and recognizing potential risks.
• Detailed oriented, professional and possesses a positive work attitude.
• Stay updated on new iOS platform and tech trends, ensuring our applications leverage the latest technologies and methodologies.
• Effective time management skills.
• Good to have knowledge of android app development, java and Kotlin.

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.