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...

Token Metrics builds crypto-focused analytics and infrastructure products used by investors and portfolio managers across global markets. This contract role sits within the engineering team and focuses on developing EVM-based smart contract infrastructure, including work related to ERC-4626 vault routing. As a Web3 Blockchain Engineer, you will collaborate closely with...

Paxos Labs builds enterprise-grade onchain infrastructure used by large financial organizations to support transparent and verifiable digital asset products. The Smart Contract Engineer role sits within the engineering organization and focuses on scaling the company’s DeFi protocol infrastructure. The position involves researching, designing, and implementing core protocol mechanisms across areas...

Category Labs is a systems engineering and research team building high-performance decentralized infrastructure. The company focuses on application-layer primitives enabled by a custom, high-throughput EVM client. As a Smart Contract Engineer, you will work within the core engineering group to design and implement smart contracts aligned with the performance characteristics...

Jito Labs builds high-performance distributed systems on Solana, including the Jito-Solana client and block-building infrastructure used by validators and MEV participants. The team operates as a small, profitable engineering-focused company working on production-grade blockchain infrastructure. As a Technical Support Engineer, you will act as a technical point of contact for...

Plasma is building a purpose-designed blockchain optimized for stablecoin payments, focusing on performance, predictability, and security for real-world financial use cases. The network is fully EVM-compatible, uses Reth as its execution layer, and runs on a custom high-performance consensus protocol, PlasmaBFT. As a Research Engineer, you will work within a...

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...

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...

Alchemy builds developer infrastructure used to operate blockchain applications at scale. The Product Lead, Solana role owns the direction and execution of Alchemy’s Solana product offering, which supports high-throughput, low-latency blockchain workloads and handles billions of API requests daily. This position is responsible for defining the product roadmap, managing a...

Alchemy builds developer infrastructure used to create, scale, and operate blockchain-based applications and onchain products. The Senior Engineering Manager, Infrastructure & Platform role focuses on leading multiple backend-focused teams responsible for core cloud infrastructure, platform services, data engineering, and internal tooling. This position owns technical execution and long-term platform strategy...

Alchemy provides developer infrastructure, APIs, and tooling used to build and scale onchain applications and rollups. The Solutions Engineer role works closely with strategic customers to design, optimize, and extend their use of Alchemy’s infrastructure. This position combines systems design, hands-on coding, and customer-facing collaboration. You will advise teams on...

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,...

SatoshiLabs is the company behind Trezor, a hardware wallet product focused on secure self-custody of digital assets. The team works on open-source software and hardware and maintains industry standards related to wallet recovery and security. This role is part of a remote-first, cross-platform product team responsible for the Trezor Suite...

This role sits within Securitize’s engineering team and focuses on building and maintaining blockchain-based systems that support tokenized real-world assets. The position involves developing backend services using Node.js, NestJS, and TypeScript, alongside designing and deploying Solidity smart contracts on Ethereum and other EVM-compatible networks. The developer contributes to CI/CD pipelines,...

This full-time role contributes to CertiK’s blockchain security services across smart contract auditing, security reviews, and broader cybersecurity work. The position focuses on identifying and analyzing vulnerabilities in blockchain systems, documenting attack patterns, and supporting the development of tools for feature-based code analysis. The role operates at the intersection of...

This internship role focuses on building AI-driven capabilities for blockchain security auditing. The intern will work alongside CertiK’s blockchain security team to develop and integrate large language model (LLM)–based agents that analyze smart contracts and surface potential vulnerabilities. The position emphasizes applied research, experimentation, and translation of academic work into...