Security Engineer
Offchain is a blockchain infrastructure company serving enterprises, developers, and institutional operators. It provides enterprise engineering services and operates products including Arbitrum, Prysm, and ZeroDev to support scalable, secure onchain applications and finance.
Projects
About Offchain
Offchain builds enterprise-grade blockchain infrastructure and provides protocol-level engineering and advisory services for organizations bringing digital-asset and onchain systems into production. Its product suite includes Arbitrum for Ethereum scaling, Prysm consensus-client infrastructure for Ethereum validation, and ZeroDev smart-account infrastructure, while its research and venture arms develop and support additional onchain technologies.
Skills
About the Role
You will secure and harden cloud and infrastructure deployments, focusing on AWS and Kubernetes environments. You will conduct security design reviews, threat modeling, and penetration testing, implement and manage VPNs and multi-region access, and operate secret management (Vault/KMS). You will automate security controls and guide developers on secure practices.
Requirements
- Extensive experience in cloud security or DevOps roles
- Prior experience focusing on infrastructure security
- Mastery of cloud infrastructure, particularly AWS
- Experience with Kubernetes or GCP
- Implemented VPNs and managed multi-region access
- Familiarity with secret management tools such as Vault or KMS
- Experience conducting security design reviews, penetration testing, and threat modeling
- Demonstrated ability to automate security controls and train developers
Responsibilities
- Secure cloud infrastructure
- Perform security design reviews
- Conduct penetration testing
- Perform threat modeling
- Automate security controls
- Manage VPNs and multi-region access
- Implement and maintain secret management (Vault, KMS)
- Educate and advise developers on security best practices
- Harden Kubernetes and cloud deployments
Benefits
- Remote-first workforce with New York office
- Annual company offsite and team onsites
- Professional reimbursement program
- Medical dental and vision coverage (US and some other countries)
- 401k retirement plan with company match (US only)
- Wellness stipend
- Home office setup and ergonomic equipment program
