Engineering Lead — Security

About the Company

SOMNIA is the Agentic Chain - a hyper-performance L1 operating at an order of magnitude faster than existing networks. Somnia is being developed by Somnia Foundation backed by Improbable, a British tech Unicorn, and received initial funding from MSquared, which raised $150 million from a16z crypto, SoftBank, and others.

Responsibilities

• Own the security posture of the L1 infrastructure including validators, RPC, and signing services
• Define and roll out organizational policies for access control, secrets management, and secure SDLC
• Drive application and supply-chain security, including dependency scanning and security reviews
• Design and operate multisig governance, signing ceremonies, and the key lifecycle for treasury and upgrades
• Build and lead the security incident-response capability, including detection, triage, and postmortems
• Perform hands-on threat modeling, security reviews, and red-team exercises
• Coordinate external audits and bug bounties
• Work with infrastructure teams to ensure node and validator operations resist compromise

Requirements

• Extensive security engineering experience with deep infrastructure security and SecOps expertise
• Hands-on experience securing production systems (Linux, networking, containers/Kubernetes, IaC)
• Proven track record of implementing security policies in an engineering organization
• Deep knowledge of key management, including signing workflows, HSMs, and secrets management
• Strong incident response leadership skills
• Understanding of cryptography fundamentals applied to blockchain
• Senior-level ownership and ability to influence without authority
• Genuine interest in crypto and on-chain systems

Preferred Qualifications

• Experience securing blockchain L1/L2 node and validator infrastructure
• Experience with multisig governance and treasury operations in production
• Knowledge of EVM, smart contract security, and DeFi attack surfaces
• Experience coordinating external audits and bug bounties
• Background in red teaming, offensive security, or detection engineering
• Experience with high-throughput or low-latency systems