Smart Contracts Jobs

Offchain Labs is hiring a Senior Backend Engineer to build secure, scalable backend services and TypeScript SDKs that power ZeroDev and other enterprise Web3 products.

Senior Software Engineer, Blockchain at Paxos — design and operate production-grade, cloud-native blockchain infrastructure that supports high-value financial transactions.

Work remotely as a Blockchain Security Engineer focused on Solidity, Rust, and Go to audit smart contracts, build security tooling, and protect protocol-level infrastructure.

Lead product roadmaps and technical POCs at Fidelity’s FCAT, applying blockchain, AI, and tokenization expertise to advance innovative financial technology from concept to production.

Lead the product vision and execution for blockchain infrastructure at Paxos to enable regulated, enterprise-grade cross-chain and on-chain financial products.

Lead the product strategy and execution for Matcha Mobile at 0x, shipping a mobile-first crypto trading experience that drives adoption and revenue.

Lead and scale the engineering of Station A’s transaction platform to make clean energy deals faster, fairer, and more transparent for buyers and providers.

Paxos seeks a Senior Software Engineer, Blockchain to architect and operate secure, high-throughput blockchain infrastructure for institutional financial services in a fully remote U.S. role.

Lead developer-facing initiatives at Offchain Labs by partnering with top application teams, improving Arbitrum tooling, and advocating for the ecosystem to accelerate adoption and product growth.

Columbia SPS is hiring a part-time Adjunct Associate to teach a graduate course on blockchains, cryptocurrencies, and analytics (on-campus/online) for Spring 2026.

Visa is looking for a Staff Software Engineer to design and build scalable, secure backend systems and blockchain-related components for its payments and crypto programs in a hybrid Foster City role.

Experienced technical pre-sales engineer sought to guide enterprise and Web3 teams through Chainlink integrations by performing technical discovery, architectural design, demos and PoCs in a remote, global role.

Experienced crypto-focused senior engineer needed to architect non-custodial on-chain products, integrate DeFi protocols and wallets, and help scale Wealthsimple's secure crypto platform for millions of users.

Asymmetric Research is hiring a Go Security Tooling/Automation Engineer (AMER) to develop secure, scalable tooling and infrastructure for blockchain protocols in a fully remote role aligned with US time zones.

Lead the architecture and implementation of Button’s next-generation lending and debt protocol as our Founding Senior Protocol Engineer.

Lead the design and implementation of Button's trading and execution infrastructure as a Founding Senior Quantitative Engineer at a high-velocity Web3 startup.

Lead the architecture and deployment of production-grade tokenomics, governance, and upgradeable smart contracts for Ephemera's XMTP protocol.

Help build and scale Cantina’s web and backend platform as a Full Stack Engineer, contributing to the future of code security in Web3.

Lead cross-functional engineering programs at Saga to drive delivery of core blockchain infrastructure and operational readiness across protocol, infra, and validator ecosystems.

Input Output (IOHK) is hiring a Technical Analyst to translate architecture and governance data into actionable insights that guide scalable, user-centered blockchain solutions.

Provide white-glove onboarding and ongoing account management for crypto-native institutional clients, acting as their operational advocate across Anchorage Digital.

Eigen Labs is hiring a Staff Security Engineer (Smart Contracts) to lead security design, audits, and formal tooling for high-stakes Ethereum staking and restaking protocols.

Immutable is hiring a Blockchain Engineer to own protocol-level features and scale Layer 2 blockchain infrastructure for high-throughput Web3 games.

An early-stage Web3 protocol team seeks a Solidity engineer to design, implement, and maintain production-grade smart contracts for a novel layer-1 protocol.

Build production-grade Solidity systems for institutional derivatives and cross-chain settlement at a quant-driven digital-assets firm.

Lead technical strategy and coordination for Ethereum developer tooling, blending deep hands-on development with cross-team resource and ecosystem intelligence.

Lead blockchain tracing and analytics efforts to detect and mitigate financial crime while advising compliance and product teams at a regulated institutional crypto platform.

Injective Labs seeks a skilled Quant Researcher to develop and optimize market-making, arbitrage, and systematic strategies on their interoperable DeFi platform.

Unto Labs is seeking a Forward Deployed Engineer to lead integrations and drive adoption of their cutting-edge blockchain platform across various ecosystems.