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Flow is a layer one blockchain designed from the ground up as a platform for a new generation of Web3 apps, games, and the digital assets that power them. Flow is home today to millions of users and apps from top tier creators including Genies, Cryptoys, Doodles, and Dapper Labs (NBA, NFL, Disney) as well as industry leaders such as Mattel (Barbie, Hot Wheels), LiveNation / Ticketmaster, and many more. Our mission is to take Web3 mainstream by making blockchain technology simple, safe, and delightful for builders and consumers alike. We operate as a distributed, low-hierarchy organization where humble, inquisitive entrepreneurs thrive.
Why this role mattersTotal value locked (TVL) on Flow is growing quickly, and DeFi is a critical catalyst. As a DeFi Engineer you will drive the next wave of decentralized-finance innovation on Flow—shipping novel protocols, strengthening existing integrations, and inspiring builders across the ecosystem. You’ll pair deep DeFi expertise with Flow-native super-powers such as protocol-level account abstraction, Cadence’s capability-based security model, and seamless EVM equivalence to unlock experiences impossible elsewhere.
What you’ll doBuild & ship DeFi primitives – Design, implement, and audit smart contracts for AMMs, lending markets, liquid staking, cross-chain bridges, yield strategies, and novel financial instruments.
Expand DeFi partnerships – Collaborate with leading Web3 teams to port or co-create protocols on Flow, guiding them through architecture, security, and launch.
Level-up existing protocols – Profile on-chain activity, identify UX or economic friction points, and deploy improvements that increase capital efficiency and TVL.
Prototype future-state concepts – Explore account abstraction–enabled UX (e.g., gasless transactions, passkeys) and multi-VM composability to invent the next generation of DeFi experiences.
Advocate & educate – Publish reference implementations, write deep-dive blog posts, speak at conferences, and mentor community devs to demystify DeFi on Flow.
Security first – Own end-to-end security: formal verification, fuzzing, audits, monitoring, and rapid incident response.
Software engineering experience focused on Web3/DeFi (Solidity, Move, Cadence, Rust, etc.).
Hands-on experience shipping and maintaining at least one major DeFi protocol (AMM, lending, bridge, LST, derivatives, etc.) to mainnet.
Strong grasp of smart-contract security patterns, economic/game-theoretic exploits, and incident triage.
Comfort working across the stack: writing Cadence contracts, scripting deployments, instrumenting on-chain analytics, and contributing to dApp front-ends.
Curiosity for emerging primitives (restaking, intent-based execution, L2 interoperability) and the creativity to adapt them to Flow’s architecture.
Effective communicator who can translate complex technical ideas to diverse stakeholders.
Bonus: experience with account-abstraction wallets, formal verification tools, or multi-VM execution environments.
Double the number of high-quality DeFi protocols live on Flow.
10× TVL growth through improved capital efficiency and seamless cross-chain liquidity.
Set new UX/security standards for consumer-friendly DeFi using Flow’s unique capabilities.
Foster a vibrant community of external DeFi builders and researchers.
Skills Required
- Software engineering experience focused on Web3/DeFi (Solidity, Move, Cadence, Rust, etc.)
- Hands-on experience shipping and maintaining a major DeFi protocol to mainnet
- Strong grasp of smart-contract security patterns and economic exploits
- Comfort working across the stack: writing Cadence contracts, scripting deployments, and contributing to dApp front-ends
- Curiosity for emerging primitives and creativity to adapt them to Flow's architecture
- Effective communicator able to translate complex technical ideas
- Experience with account-abstraction wallets, formal verification tools, or multi-VM execution environments
What We Do
Flow provides the tools and infrastructure to build and scale apps faster and better than anywhere else. It's built to be the foundation for the next generation of decentralized applications, empowering developers to create groundbreaking solutions that will bring a billion users to Web3. Flow is built by builders who created onchain apps that have onboarded millions. Flow’s unique mission is to create a world computer that anyone can use, everyone can trust and no one can shutdown - More than just a decentralized ledger. This mission has led developers to build applications not possible on any other network. With upgradable smart contracts, an advanced transaction model, a verifiable random number generator and full EVM equivalence, Flow simplifies the developer experience by taking on complexity at the protocol level. Flow is a reimagined developer platform using the web3 principles of security and decentralization. Flow was built from the ground up as a platform for consumer apps: Scale, speed, safety, cost, as well as ease of use. Flow isn't just another blockchain; it's a platform where today, there are builders creating applications that are impractical elsewhere, driving real, sustainable long-term adoption, beyond the speculative "pump and dumps" that plague the crypto space. The result is an ecosystem that is home to a thriving community of developers, from venture-backed startups to top global brands like Disney and the NBA. They’ve chosen Flow because it is built for real-world, high-volume applications with sustainable adoption. To learn more and get started building, visit the website and developer portal: Website: https://flow.com/ Developer Docs: https://developers.flow.com/ Roadmap: https://www.flow.com/flow-roadmap Cadence: https://cadence-lang.org/ X (twitter): https://x.com/flow_blockchain
