Go Backend Engineer: Crypto & Wallet Security (Remote)

Arbitrum; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Remote-first

Medical, dental & vision

401k retirement plan + company match

Wellness stipend

Home office setup

Job summary

Offchain is building the next generation of blockchain infrastructure with a security-first mindset. You will own production Go services powering wallet creation, authentication, and signing, and contribute to the cryptographic recovery and trust models that keep user keys non-custodial.

You’ll work in a remote-first, globally distributed team that values architectural rigor and external security audits. You’ll expand the platform toward programmatic signing and programmable transaction

Qualifications

• Shipped and operated production services in Go
• Security-first mindset with threat modeling
• Comfort with applied-cryptography fundamentals
• Strong API design and distributed systems knowledge
• Experience operating in Kubernetes environments
• Clear written communication in a review-heavy setting

Responsibilities

• Own production Go services powering wallet creation, authentication and signing
• Develop and maintain key recovery and trust model components
• Work with TEEs and hardware isolation concepts
• Integrate authentication methods (WebAuthn, OAuth, OTP) with signing provider
• Engage in security reviews and work with external auditors
• Operate production infrastructure with Kubernetes, observability, and incident response

Skills

Go backend

Security mindset

Distributed systems

API design

Kubernetes

Observability

Incident response

Tools

KMS

Go services

Cryptography

Job description

Offchain is building the next generation of blockchain infrastructure with a security-first mindset. You will own production Go services powering wallet creation, authentication, and signing, and contribute to the cryptographic recovery and trust models that keep user keys non-custodial.

You’ll work in a remote-first, globally distributed team that values architectural rigor and external security audits. You’ll expand the platform toward programmatic signing and programmable transaction