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Senior Backend Engineer, ZeroDev Wallet

Offchain Labs· Engineering
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RemoteFull-timePosted 3mo ago

About the role

Senior backend engineer role on the Developer Platform team building KMS and cryptographic recovery/trust models for ZeroDev’s non-custodial wallets, focusing on production Go services, security-critical infrastructure, and scalable signing workflows.

Responsibilities

  • Backend services: build and operate Go services that power wallet creation, authentication, and signing at scale
  • Key recovery and the committee trust model: distributed key generation and secret sharing that keep the service non-custodial, with recovery authority split across independent committees so no single party holds a user's key
  • Trusted Execution Environments: reconstructing and operating on key material under hardware isolation and remote attestation
  • Authentication and signing-provider integration: user-facing auth methods that gate signing (passkeys / WebAuthn, OAuth, OTP, sessions, 2FA), and integrating with a third-party signing provider (authorization and policy flows, scoped credentials, quorum / consensus approvals)
  • Security review and hardening: writing design docs and decision records, working directly with external security auditors, and turning a high review bar into shipped code
  • Production operations on Kubernetes: observability and alerting, secrets and certificate management, on-call, and the compliance controls the domain requires (sanctions screening, PII-safe handling)
  • As the platform evolves, help expand it beyond interactive consumer wallets toward programmatic and automated signing, and programmable transaction policies.

Qualifications

  • 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 naturally think about threat models, blast radius and key custody, and write code that holds up to security-critical review
  • Comfortable with applied-cryptography: fundamentals such as public-key cryptography, signatures and key management, and can reason about how they apply to production systems (not required to be a cryptographer)
  • Solid on distributed systems and API design: comfortable reasoning about idempotency, failure modes and clean service boundaries
  • Operationally experienced: production infrastructure, Kubernetes, observability and incident response
  • Clear written communicator: able to explain technical decisions through design docs and decision records, collaborative and review-heavy environment

Skills

Required:GoApplied cryptographyDistributed systemsKubernetes

Benefits

  • Remote-first global workforce + NY office
  • Professional reimbursement program (attendance, certifications, etc.)
  • Medical, dental & vision coverage (US + some other countries)
  • 401k retirement plan + company match (US only)
  • Wellness stipend
  • Home office set up / ergonomic equipment program
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Offchain Labs

Scaling Ethereum Without Compromise

Offchain Labs is a company that is dedicated to building cutting-edge scaling solutions for Ethereum. Our mission is to enable developers, businesses, and individuals to fully experience Ethereum without compromises.

EthereumLayer 2Blockchain scalingRollup technologyConsensus clientWeb3 development
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