Solidity Jobs in San Francisco.
All active Solidity roles based in San Francisco.
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Software Engineer - Smart Contract, Bridge
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Who we are
About Bridge
We’re creating an entirely new payments platform, built with stablecoins, to simplify global money movement. Bridge enables faster, cheaper payments and borderless access to dollars via stablecoins. Through our APIs, businesses can send and receive funds across borders faster / cheaper vs. SWIFT and other fiat-only rails. Our virtual accounts enable international consumers and businesses to easily access, store and spend US dollars. Our payouts infrastructure enables platforms to disburse USD to anyone globally. We believe many trillions of dollars will move and settle through stablecoin payment rails. Bridge is pulling this future forward.
We are building largely in San Francisco, and have a small team of people who have previously built financial infrastructure at some of the world’s leading companies (Coinbase, Stripe, Square, Brex, Upstart, DoorDash, Airbnb) and each and every one of them chose Bridge because they fundamentally believe that stablecoins will be a critical piece of financial infrastructure that allows for the improvement of global money movement.
About the Role
As one of the first blockchain engineers at Bridge, you will be given the autonomy to work on projects that are truly global in scale and aim to give customers access to products they've never had access to. Many of the use cases that we work on today didn't exist several months ago and that's because our team is dedicated to constant improvement for our partners and end users. Our Engineers have outsized ownership over projects so if you are looking for increased autonomy working on a completely greenfield opportunity, Bridge is the place for you.
Responsibilities
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Build out multi-chain hot wallet infrastructure to support increased reliability of our payments.
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Build smart contracts to increase hot wallet payment throughput.
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Build smart contract platform to issue custom stablecoins across multiple blockchains (EVM, Solana, Stellar, etc).
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Build smart contract monitoring systems to detect anomalous events (especially related to minting and burning).
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Design and develop blockchain-based applications and protocols to support stablecoin transactions and integrations.
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Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications.
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Implement and maintain smart contracts, ensuring security and efficiency.
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Perform thorough testing and debugging of blockchain applications.
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Optimize blockchain performance and scalability.
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Stay up-to-date with the latest developments in blockchain technology and integrate relevant advancements into our solutions.
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Provide technical guidance and support to other team members.
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Contribute to the overall architecture and design of our blockchain systems.
Qualifications
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Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
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We are open to hiring engineers at various levels of seniority but in general we would look for somebody with 5+ years of experience.
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Strong proficiency in blockchain platforms such as Ethereum, Solana or others.
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Experience with smart contract development using Solidity or other relevant languages.
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Deep understanding of cryptographic principles and blockchain protocols.
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Experience with decentralized finance (DeFi) and stablecoins is highly desirable.
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Knowledge of security best practices in blockchain development.
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An enlarged sense of ownership and the ability to lead and influence the design and direction of our products.
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An ability to thrive in a fast paced environment.
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A growth mindset and a constant curiosity and fearlessness to dive into the unknown.
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Excellent written and verbal communication skills, including the ability to write clear technical documentation.
Ready to apply?
Apply to Stripe
About Mesh
At Mesh, our mission is to enable consumers to pay and be paid with any asset. Today, trillions of dollars in tokenized assets exist but remain largely unusable for everyday commerce. Mesh is bridging this gap by making crypto payments reliable, useful, and ubiquitous. We combine a powerful orchestration engine with a seamless consumer app to unlock liquidity for the world. Backed by leading investors like PayPal Ventures, Paradigm, and Galaxy Ventures, we are building the infrastructure for the next era of the global economy. Join us!
Overview
We are seeking a talented and experienced Senior Full Stack Software Engineer (Web3) with a strong background in building modern web applications and scalable backend systems. As a member of our team, you will play a crucial role in designing, developing, and maintaining our innovative software solutions, including integrating Web3 functionality such as wallet connections, signing flows, and on-chain/off-chain interactions. Mesh is a global company with headquarters in San Francisco, California USA. This candidate will work closely with the Engineering and Product teams spread across North America, Europe and India.
What You'll Do
- Design, build, and operate production-grade Web3 systems used by real customers and assets at scale.
- Own features end-to-end across frontend, backend, and on-chain components (with depth aligned to your strengths).
- Lead the design and implementation of complex workflows involving wallets, transactions, settlements, and orchestration.
- Partner closely with product, design, and external teams to turn ambiguous requirements into robust technical solutions.
- Improve system reliability, security, and performance across distributed and on-chain components.
- Mentor other engineers and contribute to engineering best practices, architecture reviews, and technical direction.
Who You Are
- 5-7+ years of professional experience as a Full-stack Web3 Engineer with production experience across frontend, backend, and on-chain components, comfortable owning systems end-to-end.
- Hands-on experience with Web3 building blocks, such as wallet connectivity/integrations, dApp development, blockchain RPCs and indexing, and/or on-chain/off-chain payment & settlement flows.
- Familiar with DeFi primitives (e.g., DEXs, swaps, lending, trading platforms) and how they work in real systems.
- Experience with some combination of:
- Modern frontend frameworks (e.g., TypeScript, React, Redux)
- Backend services and APIs (e.g., C#, Node.js, Go, Java, or similar)
- Smart contracts and on-chain interactions (e.g., Solidity)
- Strong understanding of the transaction lifecycle (signing, submission, execution) and a security-first mindset when designing Web3 systems.
- Solid fundamentals in building scalable, reliable, observable distributed systems (monitoring, logging, tracing, performance).
- Frontend-leaning or backend-leaning profiles are welcome, as long as you have shipped Web3-enabled systems in production and want to expand your scope over time.
The annual base salary range for this role is $100,000-$250,000 in San Francisco and New York. The compensation range provided may span multiple career levels and will be narrowed during the interview process based on factors including a candidate’s experience, skills, qualifications, and geographic location. For candidates outside of San Francisco and New York, compensation will be adjusted to reflect the applicable market and location-based pay band. The base salary range listed excludes commission (if applicable), equity, and benefits. The pay range represents the minimum and maximum target for new-hire compensation. Actual compensation may vary and may be higher or lower depending on individual circumstances.
Why You’ll Love It Here
At Mesh, you're not stepping into a typical role—you're joining a rocket ship in mid-liftoff. You'll tackle complex, meaningful problems that actually move an industry forward, working alongside a sharp, motivated team that moves quickly, collaborates deeply, and expects everyone to operate with ownership. This is the kind of place where you'll see your work ship fast, make real impact, and be able to point to something and say, "I built that." You'll grow fast, level up your skills, and get a front-row seat to how a high-growth company scales from the inside, with competitive comp, solid benefits, and room to stretch your craft all coming standard. If you're energized by building, learning, and shaping something big—this is where you'll want to be.
In-Office Expectations
Employees based in our San Francisco, New York, and Bangalore hubs are expected to work from the office at least 40% of the time (approximately two days per week). This expectation may vary slightly depending on role, team, and business needs. Certain roles that require closer cross-functional collaboration or operational support may have additional in-office requirements, which will be discussed during the interview process. Our hybrid approach is designed to balance meaningful in-person collaboration, team building, and real-time decision-making with the flexibility to work remotely. We believe this structure supports strong execution while preserving autonomy and focus time.
How We Care For Our Team
We believe great work happens when people feel valued and supported. That starts with competitive salary and equity that grows as you and the company grow, plus comprehensive health coverage for you and your family. We offer unlimited PTO—and we mean it. Take the time you need to recharge and show up at your best.
We're invested in your growth with a dedicated budget for courses, conferences, and certifications. Work from wherever you're most productive with our remote-friendly approach, and count on having the top-tier tools and equipment you need to do exceptional work.
Mesh Pay is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
Ready to apply?
Apply to Mesh
About Mesh
At Mesh, our mission is to enable consumers to pay and be paid with any asset. Today, trillions of dollars in tokenized assets exist but remain largely unusable for everyday commerce. Mesh is bridging this gap by making crypto payments reliable, useful, and ubiquitous. We combine a powerful orchestration engine with a seamless consumer app to unlock liquidity for the world. Backed by leading investors like PayPal Ventures, Paradigm, and Galaxy Ventures, we are building the infrastructure for the next era of the global economy. Join us!
Overview
We are seeking a talented and experienced Staff Full Stack Software Engineer (Web3) with a strong background in building modern web applications and scalable backend systems. As a member of our team, you will play a crucial role in designing, developing, and maintaining our innovative software solutions, including integrating Web3 functionality such as wallet connections, signing flows, and on-chain/off-chain interactions. Mesh is a global company with headquarters in San Francisco, California USA. This candidate will work closely with the Engineering and Product teams spread across North America, Europe and India.
What You'll Do
- Design, build, and operate production-grade Web3 systems used by real customers and assets at scale.
- Own features end-to-end across frontend, backend, and on-chain components (with depth aligned to your strengths).
- Lead the design and implementation of complex workflows involving wallets, transactions, settlements, and orchestration.
- Partner closely with product, design, and external teams to turn ambiguous requirements into robust technical solutions.
- Improve system reliability, security, and performance across distributed and on-chain components.
- Mentor other engineers and contribute to engineering best practices, architecture reviews, and technical direction.
- Influence the roadmap, lead large-scale technical initiatives, and amplify impact across teams.
Who You Are
- 8+ years of professional experience as a Full-stack Web3 Engineer with production experience across frontend, backend, and on-chain components, comfortable owning systems end-to-end.
- Hands-on experience with Web3 building blocks, such as wallet connectivity/integrations, dApp development, blockchain RPCs and indexing, and/or on-chain/off-chain payment & settlement flows.
- Familiar with DeFi primitives (e.g., DEXs, swaps, lending, trading platforms) and how they work in real systems.
- Experience with some combination of:
- Modern frontend frameworks (e.g., TypeScript, React, Redux)
- Backend services and APIs (e.g., C#, Node.js, Go, Java, or similar)
- Smart contracts and on-chain interactions (e.g., Solidity)
- Strong understanding of the transaction lifecycle (signing, submission, execution) and a security-first mindset when designing Web3 systems.
- Solid fundamentals in building scalable, reliable, observable distributed systems (monitoring, logging, tracing, performance).
- Frontend-leaning or backend-leaning profiles are welcome, as long as you have shipped Web3-enabled systems in production and want to expand your scope over time.
The annual base salary range for this role is $100,000-$250,000 in San Francisco and New York. The compensation range provided may span multiple career levels and will be narrowed during the interview process based on factors including a candidate’s experience, skills, qualifications, and geographic location. For candidates outside of San Francisco and New York, compensation will be adjusted to reflect the applicable market and location-based pay band. The base salary range listed excludes commission (if applicable), equity, and benefits. The pay range represents the minimum and maximum target for new-hire compensation. Actual compensation may vary and may be higher or lower depending on individual circumstances.
Why You’ll Love It Here
At Mesh, you're not stepping into a typical role—you're joining a rocket ship in mid-liftoff. You'll tackle complex, meaningful problems that actually move an industry forward, working alongside a sharp, motivated team that moves quickly, collaborates deeply, and expects everyone to operate with ownership. This is the kind of place where you'll see your work ship fast, make real impact, and be able to point to something and say, "I built that." You'll grow fast, level up your skills, and get a front-row seat to how a high-growth company scales from the inside, with competitive comp, solid benefits, and room to stretch your craft all coming standard. If you're energized by building, learning, and shaping something big—this is where you'll want to be.
In-Office Expectations
Employees based in our San Francisco, New York, and Bangalore hubs are expected to work from the office at least 40% of the time (approximately two days per week). This expectation may vary slightly depending on role, team, and business needs. Certain roles that require closer cross-functional collaboration or operational support may have additional in-office requirements, which will be discussed during the interview process. Our hybrid approach is designed to balance meaningful in-person collaboration, team building, and real-time decision-making with the flexibility to work remotely. We believe this structure supports strong execution while preserving autonomy and focus time.
How We Care For Our Team
We believe great work happens when people feel valued and supported. That starts with competitive salary and equity that grows as you and the company grow, plus comprehensive health coverage for you and your family. We offer unlimited PTO—and we mean it. Take the time you need to recharge and show up at your best.
We're invested in your growth with a dedicated budget for courses, conferences, and certifications. Work from wherever you're most productive with our remote-friendly approach, and count on having the top-tier tools and equipment you need to do exceptional work.
Mesh Pay is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
Ready to apply?
Apply to Mesh
Overview:
We're seeking an experienced Smart Contract Engineer to help us build the future of on-chain credit. In this role, you'll architect, implement, and test smart contracts that power decentralized lending infrastructure.
Responsibilities:
- Design, develop, and maintain Move smart contracts on Aptos with a focus on security, efficiency, and scalability
- Write comprehensive technical documentation for both internal teams and external developers
- Collaborate with backend engineers, product managers, and security auditors to integrate on-chain loan logic with off-chain services
- Conduct thorough testing and code reviews to identify vulnerabilities and optimize gas efficiency
- Monitor deployed contracts and respond to security concerns or performance issues
Requirements:
- 2+ years of professional smart contract development experience (Solidity, Move, or similar languages)
- Deep understanding of blockchain fundamentals, consensus mechanisms, and DeFi protocols
- Proven ability to write secure, well-tested smart contract code with attention to edge cases
- Strong communication skills—you can explain complex technical concepts to non-technical stakeholders
- Track record of writing clear, maintainable technical documentation
- Degree in Computer Science, Mathematics, Engineering, or equivalent practical experience
Nice to Have:
- Experience with Move language in production environments
- Background in traditional finance, private credit, or lending protocols
- Familiarity with formal verification tools and security audit processes
- Contributions to open-source blockchain projects
Ready to apply?
Apply to Pact Labs