Design, implement, and test secure Solidity-based smart contracts and decentralized applications.
Own small to medium-sized smart contract projects end to end, from design through deployment.
Contribute to larger protocol initiatives like Aave V4, vaults, and GHO, and collaborate on protocol infrastructure.
Aave Labs builds the Aave Protocol, the world's largest onchain lending market, connecting DeFi with individuals and fintech. We are a global, lean team focused on quality, building trusted products for lending, credit, and savings.
Contribute as a freelance specialist to blockchain infrastructure and protocol projects aligned with your expertise.
Design, develop, test, and maintain production-grade blockchain systems and distributed networks.
Solve complex challenges in security, privacy, scalability, cryptography, and consensus protocols.
Jobgether is a talent network connecting experienced blockchain engineers with high-impact infrastructure projects across the decentralized web. It fosters a remote-first, self-directed culture with support from engineering leads and a vetted community of specialists.
Own the technical strategy and architecture of Xsolla's smart wallet platform, covering account model, signing, session management, and gas abstraction at scale.
Design and evolve ERC-4337, EIP-7702, session keys, and permission primitives so millions of players get a secure, non-custodial on-chain account.
Drive cross-team decisions, set engineering standards, and serve as the escalation point for complex production wallet issues.
Xsolla is a global commerce company that builds tools and services to help video game developers fund, distribute, market, and monetize their games. Headquartered in Los Angeles, it has helped over 1,500 game developers reach more players and operates across multiple time zones with a culture that values directness and technical depth.
Design and build core services for Transit's RFQ orchestration engine and crosschain exchange orderbook.
Own systems end to end from design through deployment, monitoring, and the on-call reality of moving real money.
Integrate new chains, venues, solver networks, and liquidity sources while setting technical direction on a small team.
Paxos Labs builds enterprise infrastructure for trusted onchain financial products, enabling major platforms to bring digital assets and DeFi into mainstream use. We're a small team of roughly 15 people, where engineers own whole systems, ship quickly, and work on hard problems with a finance-grade correctness bar.