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...