offchainlabs - Offchain - Senior Software Engineer, Developer Platform
Requirements
• A strong backend engineer who has shipped and operated production services in Go (or an adjacent systems language and is eager to go deep in Go) • Security-first by default: you reason about threat models, blast radius, and key custody as a habit, and you write code that holds up to security-critical review • Comfortable with applied-cryptography fundamentals (public-key crypto, signatures, key management). You do not need to be a cryptographer, but you can reason about it and learn fast • Solid on distributed systems and API design: idempotency, failure modes, and clean service boundaries • Operationally mature: Kubernetes, observability, and incident response are not foreign to you • Clear written communicator (design docs, decision records) who thrives in a collaborative, review-heavy culture • TEE experience (AWS Nitro Enclaves, Intel SGX / TDX, or similar): attestation, enclave key handling, reproducible enclave builds • Threshold cryptography / MPC in practice: DKG, FROST or other threshold signatures, verifiable secret sharing, resharing • Account abstraction: ERC-4337, EIP-7702, smart-account or embedded / non-custodial wallet experience • Built on or integrated a custody / signing provider (Turnkey, Fireblocks, or similar), or built one • HSM / YubiKey / PIV / secure-element integration • Been on the receiving end of a third-party security audit and driven the remediation • WebAuthn / passkeys, OAuth / OIDC, and the Go crypto ecosystem
Benefits
• Offchain is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers Arbitrum One, the most widely adopted Ethereum scaling solution that exists today. • Arbitrum’s ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain technology to build their own Arbitrum chains. Major players in the space, Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain are all using the Arbitrum stack. • Arbitrum’s thriving ecosystem wouldn’t exist without our advanced technology stack. Arbitrum, Prysm, ZeroDev. These aren’t just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure. • To top it all off? We’re backed by $124 million in funding. We’ve demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. • At Offchain, we aren’t just building products: we’re leading a movement. • As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security and transparency. • At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you’re energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you. • Remote-first global workforce + NY office • Annual company offsite + team onsites • Professional reimbursement program (facilitates industry conference attendance, certifications, and more) • Medical, dental & vision coverage (US + some other countries) • 401k retirement plan + company match (US only) • Wellness stipend • Home office set up / ergonomic equipment program • Attention Offchain Job Seekers: • This role cannot be performed in California, or Colorado. • Please be advised that there has been a rise in fraudulent recruiter activities, particularly within the Web3 space. If you would like to confirm whether someone is an Offchain employee or the legitimacy of an offer you received, please email [email protected] • At Offchain, we are committed to building a welcoming and supportive workplace for all employees, regardless of their background or identity. We strive to create an environment where everyone feels valued and has an equal opportunity to succeed and thrive. We encourage candidates from all walks of life to apply and join our team.
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