Senior Backend Engineer - Developer Platform (Go & Security)

Arbitrum; Northern (KY); Hybrid; USD 120,000 - 190,000; Full time

Benefits offered by this job

Remote-first global workforce

Professional reimbursement program

Medical, dental & vision coverage

401k retirement plan

Wellness stipend

Home office setup

Job summary

Offchain, creator of the Arbitrum stack, is hiring a backend engineer to own Go services powering wallet creation, authentication, and signing at scale. You will work on key recovery, distributed key generation, and trusted execution environments, while collaborating with external auditors and security reviews.

This remote-first role offers a NY office option and a professional reimbursement program. Candidates should be security-minded, experienced with distributed systems and API design, and

Qualifications

• A strong backend engineer who has shipped and operated production services in Go.
• Security-first by default; you reason about threat models and key custody.
• Comfortable with applied cryptography fundamentals and learning fast.
• Solid on distributed systems and API design.

Responsibilities

• Go backend services for wallet creation, authentication, and signing at scale.
• Key recovery and committee trust model with distributed key generation and secret sharing.
• Trusted Execution Environments: operate on key material in hardware isolation.
• Authentication and signing-provider integration and policy flows.
• Security review and hardening with external auditors.
• Production operations on Kubernetes: observability, secrets, on-call, and controls.

Skills

Go backend

Security mindset

Distributed systems

API design

Kubernetes

Observability

Cryptography basics

Job description

Offchain, creator of the Arbitrum stack, is hiring a backend engineer to own Go services powering wallet creation, authentication, and signing at scale. You will work on key recovery, distributed key generation, and trusted execution environments, while collaborating with external auditors and security reviews.

This remote-first role offers a NY office option and a professional reimbursement program. Candidates should be security-minded, experienced with distributed systems and API design, and