Parity builds core blockchain infrastructure including Polkadot, Polkadot SDK, and Kusama. This contract-based, remote role sits within the Security Engineering team and focuses on strengthening security across decentralized systems and Rust-based software components. The Security Engineer will conduct deep manual and automated audits, write secure Rust code where required, and...

Polygon Labs builds blockchain-based payments infrastructure designed to move money onchain at internet scale. This full-time remote role (EMEA) sits within the Technology department’s Payments team and focuses on building secure, cloud-native infra from the ground up. The Senior DevOps Engineer will own infrastructure decisions across Google Cloud Platform environments,...

Svix is an infrastructure startup focused on server-to-server communication, beginning with webhook delivery systems used by high-growth startups and enterprise customers. The company builds scalable backend systems designed for performance, reliability, and strong developer experience. This Rust Backend Engineer role is a full-time, on-site position in San Francisco. The engineer...

Alchemy builds developer infrastructure and tooling that supports onchain applications and distributed protocols. This role focuses on designing and maintaining smart contract–based protocols that extend Alchemy’s developer platform. As a Smart Contract Engineer, you will architect distributed protocols with a focus on security, scalability, and performance, and maintain them in...

OpenZeppelin is a blockchain security company focused on protecting decentralized applications and smart contracts. The team develops open-source contract libraries and provides security services that support the full lifecycle of blockchain projects. As a Blockchain Security Researcher, you will analyze smart contracts for decentralized applications prior to launch, identify vulnerabilities,...

This role focuses on building and securing peer-to-peer networking layers for a blockchain-based system. The Blockchain Engineer will design resilient P2P components using gossip protocols, distributed hash tables, and NAT traversal techniques. The position owns network performance, reliability, and security, with responsibilities spanning monitoring, debugging, and latency optimization. The role...

<?xml encoding="UTF-8"> Risk Labs is the core team behind the UMA and Across ecosystems, building infrastructure that enables verifiable real-world data and cross-chain interoperability for Web3. This remote web3 role combines engineering leadership with hands-on architecture and development responsibilities. The Engineering Manager will guide a small cross-stack team while remaining...

<?xml encoding="UTF-8"> Conduit builds a rollup-native cloud platform designed to scale Ethereum by making onchain compute easier to launch and operate. This layer 2 scaling role focuses on the backend systems that power Conduit’s platform, where engineers work directly on EVM node architecture, performance, and reliability. The Blockchain Engineer will...

Paradex is a decentralized finance platform combining exchange trading, asset management, and borrow/lend functionality within a single unified account structure. The company operates a high-throughput blockchain-based system supporting a wide range of spot and derivatives markets. As a Data Engineer, you will be responsible for designing and maintaining the data...

Paradex is a decentralized finance platform building a unified system that combines exchange trading, asset management, and borrow/lend functionality on a high-performance blockchain. The team operates with a flat structure and focuses on shipping production-grade systems without traditional management layers. As a Fullstack Engineer, you will own the end-to-end development...

LI.FI builds infrastructure that enables unified access to on-chain liquidity across multiple blockchains through a single API, supporting same-chain and cross-chain swaps. This role sits within the Smart Contract API Expansion team, which focuses on integrating new chains, bridges, and protocol functionality across EVM networks. As a Mid/Senior Smart Contract...