This role focuses on the design and development of Solidity compiler frontend components within CertiK’s blockchain security engineering team. The position involves building and optimizing compiler infrastructure used for static analysis, semantic checks, and integration with formal verification tools. The engineer will work on parsing, AST generation, and type systems...

This role supports CertiK’s blockchain security engineering function, focusing on auditing decentralized systems and contributing to internal security tools. The position is designed for early-career engineers with a strong technical foundation and an interest in securing smart contracts, protocols, and blockchain infrastructure. The work involves reviewing codebases, researching potential attack...

This role is part of Aragon’s Solutions team, which builds custom integrations on top of Aragon OSx, the company’s modular framework for onchain organizations. The position focuses on translating client requirements into secure smart contract architectures and delivering end-to-end implementations that align with user needs. The engineer works closely with...

The Nomic Foundation is a non-profit organization building critical open-source infrastructure for the Ethereum developer ecosystem. This role sits on the EDR team, which is developing a Rust-based Ethereum runtime aimed at tooling, initially serving Hardhat users and, over time, third-party developers integrating execution analysis into their products.As a Senior...

Wormhole Labs builds decentralized infrastructure spanning core blockchain protocols, trading systems, and user-facing applications. The Solana Protocol Engineer role focuses on developing and maintaining Wormhole’s Solana-based programs and the protocols that extend into the Solana ecosystem. This position involves working across the full protocol lifecycle—ideation, architecture, implementation, review, and deployment—while...

Wormhole Labs develops decentralized systems that support cross-chain applications, protocol infrastructure, and tools used across multiple blockchain environments. The Full-Stack Blockchain Engineer role focuses on contributing to products within the Wormhole ecosystem, including smart contracts across several chains, validator software, and development frameworks that enable multichain interoperability. The position involves...

Clearmatics builds decentralized financial market infrastructure designed to enable open, efficient, and interoperable markets. The company focuses on systems that allow peer-to-peer trading, settlement, and the creation of markets around real-world risk factors not well represented in traditional finance. As a Smart Contract Engineer, you will develop and maintain Solidity-based...

Douro Labs builds market data infrastructure used across decentralized finance. The engineering team develops backend systems, smart contracts, SDKs, monitoring tools, and open-source components that support Pyth-related products. In this Software Engineer role, you’ll work on both on-chain and off-chain projects, contribute to developer-facing tooling, and participate in shaping product...

Spearbit, along with its Cantina platform, builds tools that address security needs across the Web3 ecosystem. The team provides infrastructure that supports collaborative security reviews, security competitions, bug bounties, incident response workflows, and AI-driven code analysis. The Full Stack Engineer will contribute to the design and development of core user-facing...

Offchain Labs is seeking a Site Reliability Engineer to support and scale infrastructure powering the Arbitrum ecosystem. The role focuses on maintaining Kubernetes-based deployments, automating infrastructure using declarative tooling such as Terraform, and working within GitOps workflows using tools like ArgoCD. The candidate will diagnose complex reliability issues across distributed...

Offchain Labs, the team behind the Arbitrum scaling ecosystem, is hiring a Security Engineer focused on securing cloud and blockchain infrastructure. The role involves working across AWS-based environments, Kubernetes, multi-region access systems, VPN-based security, and secrets management tools such as Vault or KMS. This position will support architecture analysis, threat...

Ava Labs is hiring a Staff Backend Engineer for their Institutional Custody division, focused on designing and scaling secure blockchain and wallet infrastructure. This role sits at the intersection of technical leadership and hands-on engineering, leading long-term architectural direction and backend development using Golang. The position works closely with cross-functional...

This internship is intended for MSc/PhD students interested in contributing to research and engineering in large-scale AI model development at Tether. The role involves participation in building and improving SOTA models in domains such as LLMs, video models, and multimodal architectures. Interns will also work on enhancing distributed training infrastructure...

This role focuses on implementing and optimizing cryptographic systems related to zero-knowledge proof generation. Axiom develops verifiable and privacy-preserving software components, including the OpenVM zkVM framework, which supports flexible verification of program execution. The ZK Proof Engineer will contribute to building and refining ZK-enable infrastructure, integrating low-level computing, compiler frameworks,...

This open application internship is offered by Nethermind for individuals interested in contributing to blockchain, Ethereum infrastructure, Web3 technologies, cryptography, research, and related fields. Applicants may come from various technical or analytical backgrounds and will have the opportunity to collaborate with distributed teams on research, engineering, infrastructure, or product-focused work.The...

ENS Labs, the development team behind the Ethereum Name Service protocol, is seeking a Web3-focused Integrations Engineer to advance ENS adoption across wallets, SDKs, dApps, L2 networks, developer libraries, and other crypto infrastructure. This role combines hands-on engineering work with external collaboration, contributing code directly to open-source projects that integrate...

SatoshiLabs, the company behind Trezor and the first hardware wallet in the industry, such as Recovery Seeds and Shamir Backup, is seeking a Backend Developer to support and expand its blockchain infrastructure. The role involves developing services that interface with multiple crypto networks, integrating external data services, managing backend performance,...

ENS Labs, the core development team behind the Ethereum Name Service protocol, is hiring a Senior/Staff-level DevOps Engineer to manage and maintain the infrastructure that supports ENS resolution across multiple chains. This role oversees operational reliability for core services such as metadata systems, indexing services, CCIP-Read gateways, and emerging Namechain/L2...