Design and implement new features within the Data Product space, including trust-minimized off-chain computation and aggregation of external data in blockchain environments.
Own end-to-end delivery of data products that power the largest market share of DeFi by total value secured.
Build core products with Smart Contracts using Solidity, Move, and Rust.
Chainlink is the industry-standard oracle platform bringing capital markets onchain and powering the majority of decentralized finance. The company has enabled tens of trillions in transaction value and fosters a collaborative, autonomous engineering culture.
Build internal and first-party applications on Tempo for agents and humans.
Partner with startups and enterprises to integrate Tempo into their payment systems.
Develop deep understanding of Tempo blockchain, navigate codebases, and ship products across customer environments.
Tempo is a layer-1 blockchain built for stablecoins and real-world payments, originating from Stripe's payment expertise and Paradigm's crypto tech. We're a team of crypto-optimists building infrastructure for onchain economic flows, moving fast with design partners like Anthropic, DoorDash, and Visa.
Design, build, and maintain scalable distributed backend systems powering platform and product capabilities.
Own backend services end-to-end, from architecture to monitoring, while collaborating with product and engineering peers.
Build and evolve Web3 platform backend components, including protocol integrations and blockchain network support.
Zerion builds backend systems for Web3 infrastructure, powering API and wallet products trusted by 50+ top crypto brands. They have a fully remote team with strong ownership and high code quality, processing over 3.1B requests and supporting 1.7M+ active funded wallets.
Design and implement core P2P networking and storage primitives in Node.js.
Optimize protocols for performance, latency, and reliability across unreliable networks.
Collaborate on distributed systems, cryptography, and high-performance networking.
Holepunch builds peer-to-peer networking and distributed systems technologies using Node.js and decentralized protocols. The company is a globally distributed, remote-first team with a strong focus on engineering excellence.
Lead the design and implementation of core backend services for high-performance, distributed systems.
Drive the use of modern development practices such as BDD and TDD to ensure high-quality code.
Collaborate across teams in a product-driven environment and conduct code reviews.
Primer provides a unified platform for global payments, helping finance teams reduce complexity and capture more revenue. Backed by major investors, the company is a growth-stage startup with a remote-first culture that values autonomy and collaboration.
Break things on purpose by threat-modeling and reviewing Solidity contracts, Rust blockchain state transition functions, and other critical systems.
Own protocol components from design review through production, ensuring secure architecture and implementation.
Track the adversary, follow industry hacks and exploits, and convert lessons into concrete improvements.
Matter Labs builds private settlement infrastructure using zero-knowledge cryptography for regulated institutions. They are a fully remote team of about 70, backed by a16z and Union Square Ventures, with eight years of production zero-knowledge infrastructure.
Assist in developing secure software by writing and optimising Rust code for security-critical components.
Conduct deep manual and automated code audits to identify and mitigate security vulnerabilities.
Design and implement machine learning models for automated security analysis and threat mitigation.
Parity builds core blockchain infrastructure for a decentralized web, including Polkadot and Kusama. Our remote-first global team develops open-source software and is committed to a respectful, innovative culture.
Lead strategic client engagements, guide onboarding and adoption, and build long-term partnerships to drive success on Arbitrum.
Collaborate with product, engineering, and research teams to relay feedback and improve the platform from protocol to application layers.
Own developer success across leading application teams, solving challenges and accelerating their development.
Offchain is pioneering blockchain scalability and security, transforming how the world interacts with decentralized applications. The team consists of thinkers and doers backed by $124 million in funding, working on the Arbitrum stack that powers the most widely adopted Ethereum scaling solution.
Resolve customer-reported issues quickly and thoroughly, from investigation through to a durable fix.
Diagnose complex, ambiguous problems across services and data pipelines, tracing them to root cause.
Deliver high-quality engineering work that improves the platform and directly addresses customer needs.
VulnCheck delivers structured exploit intelligence on what is actively weaponized in the wild, purpose-built for data lakes, ETL pipelines, automation, and AI workflows. Founded in 2021, the company has a transparent, collaborative, and supportive culture with a team of cybersecurity experts.
Design and evolve the platform services, infrastructure, and internal tooling that power OpenSea's products.
Own complex technical systems from definition through implementation, balancing scalability, reliability, and developer experience.
Bring best-in-class observability, monitoring, and alerting to all systems while accelerating CI coverage and leveraging AI tools.
OpenSea is building the gateway to the onchain economy, enabling digital ownership of communities, assets, and creative expression. The company is a small, AI-native team with millions of users, focused on high-leverage engineering and extreme ownership.
Lead development of a web application and blockchain-based infrastructure to accelerate scientific research and collaboration.
Shape both product and engineering from an early stage, making key technical decisions and establishing scalable practices.
Work across modern web technologies and smart contracts, with significant autonomy and ownership over the technology roadmap.
Jobgether uses AI-powered matching to connect candidates with roles. They process applications and share shortlists with hiring companies for final decisions.
Take full ownership of backend features from scoping through to production, keeping the team informed on progress, risks, and blockers.
Design and deliver backend services that handle real payment volume with a focus on reliability, performance, and correctness at scale.
Contribute to architecture discussions, advocate for clear service contracts, and write production-ready code with the next engineer in mind.
Primer is a unified infrastructure for global payments that provides finance and payments teams with visibility and control to reduce complexity and capture more revenue. Backed by Sofina, Peak XV Partners, and others, it is a remote-first company with a collaborative and mission-driven culture.
Build and operate Go backend services for key management and signing at scale.
Design and implement cryptographic recovery and trust models for non-custodial wallets.
Work with external auditors, Kubernetes, and distributed systems in a security-critical environment.
Offchain Labs builds the Arbitrum stack, the leading Ethereum scaling solution. They are a well-funded company with $124 million in backing, a small but high-ownership team, and a culture of security-first engineering and collaborative review.
Owning technical design and execution for major products, systems and engineering initiatives.
Designing scalable, reliable systems across backend, frontend, APIs, databases and infrastructure.
Building alongside the team through coding, prototyping, code reviews, debugging and production problem-solving.
BJAK builds technology products used by millions of users across Southeast Asia. The company is a distributed, fast-moving international team that values technical leadership and hands-on engineering.
Design and implement high-quality native mobile SDKs for embedded wallet experiences.
Own SDK architecture, APIs, release management, and developer documentation end-to-end.
Build secure components supporting wallet operations, cryptography, and blockchain interactions.
This company builds mobile infrastructure powering the next generation of digital asset and financial applications. It is a distributed, fast-moving organization that values developer experience, technical excellence, and continuous growth.
Develop and maintain production-scale Node.js applications and services.
Build and evolve peer-to-peer technology and distributed-system components.
Design modular, reusable code and manage npm modules within a large ecosystem.
Holepunch develops peer-to-peer technology and distributed systems. The company supports an ecosystem of over 1,500 public npm modules with a globally distributed, remote-first team that values autonomy and technical ownership.
Design and implement high-performance components in Rust, C++, or Go for the DEX engine and protocol runtime.
Build low-latency pipelines for order execution, event propagation, and state updates, optimizing concurrency and memory layout.
Investigate and resolve performance bottlenecks using profiling and benchmarking, driving system design decisions for senior candidates.
Nexus is the engine for verifiable finance, building a blockchain designed to embed the global financial system into one compounding system. Headquartered in San Francisco with a growing presence in Buenos Aires, the cross-continental team is backed by leading investors and works with more than 100 partners.
Build the world's fastest APIs delivering globally resilient access to blockchain nodes.
Implement customer management, control, and billing systems.
Scale systems for data ingestion, storage, and query capabilities.
Validation Cloud is an AI platform powering Web3 finance, delivering products across Data x AI, Staking, and Node API, trusted by billions in staked assets. Backed by over $20M in venture funding, it has a world-class team spanning San Francisco, New York, London, and beyond.
Identify and pursue partnerships with early-stage builders, converting interest into active ZeroDev integrations.
Pitch ZeroDev's Kernel and modular account infrastructure directly to developer teams.
Own the top of the funnel: track leads, nurture them from interest to technical evaluation, and hand off to sales engineering.
Offchain is a pioneer in blockchain scalability and security, building the Arbitrum stack that powers the most widely adopted Ethereum scaling solution. The company is backed by $124 million in funding, with a team of thinkers and doers dedicated to transforming decentralized interactions.
Act as the primary security partner for the Walrus team, providing architectural guidance and embedding security practices throughout the development lifecycle.
Lead security assessments for new features and contribute to ecosystem-wide security initiatives, identifying systemic risks and actionable remediation plans.
Drive a security-by-design culture, leveraging AI and automation to focus on high-impact, complex security research and mentor engineers.
Mysten Labs builds foundational infrastructure to accelerate the adoption of decentralized protocols based on blockchain technologies. They are a well-funded, remote-first team with over $300M in Series B funding from top venture firms, fostering a culture of innovation and growth.