Protocol Engineer, Galaxy

• Substantial experience building and operating distributed systems in production, ideally where reliability and security are first-class concerns
• Deep comfort with the modern infrastructure stack: Kubernetes, AWS (or equivalent), infrastructure-as-code, GitOps, observability tooling, CI/CD
• Strong software engineering fundamentals in at least one systems-capable language (Go, Rust, Python, TypeScript — what you've shipped matters more than which)
• Experience operating systems that hold or move value — custody, payments, exchanges, key management, HSMs, MPC — or a clear track record in adjacent high-stakes domains
• Comfort being customer-facing. You'll sit with client engineers, understand their constraints, and ship into their environment. Strong written and verbal communication
• High agency. We operate decentralized command — squad leads own within their mandate. You should be the kind of engineer who finds the work, not the kind who waits for it
• For staff candidates: a track record of setting technical direction across multiple teams or engagements, and of growing the engineers around you

Desirable

• As a Senior Platform Engineer, you'll own the infrastructure that runs institutional-grade blockchain operations — with particular depth in Ethereum validator infrastructure, consensus and execution client operations, and the platform layer that makes all of it reliable, observable, and scalable
• This isn't a role where blockchain is adjacent to the real work
• Validator clusters,client diversity, MEV infrastructure, slashing protection, and the operationalcomplexity of running Ethereum at institutional scale are core to what you'll buildand maintain
• That sits alongside the broader platform stack: Kubernetes (EKS,GitOps with FluxCD), AWS, Kafka, secrets and key management (KMS/HSM,MPC), Postgres, and the observability layer
• You'll also work closely with clients —understanding their systems, translating requirements into platform capabilities,and collaborating on integrations
• Own and operate Ethereum validator infrastructure at scale — consensus clients (Lighthouse, Prysm, Teku, Nimbus), execution clients (Geth,Nethermind, Besu, Reth), and the tooling that keeps them healthy, diverse, and performant
• Build and maintain the platform layer underneath validator operations: cluster lifecycle management, client upgrades, peer connectivity, fork tracking, and the observability stack that surfaces what matters
• Manage slashing protection, key management, and signer infrastructure (Web3Signer, distributed validators, HSM/MPC-backed signing) at the level of rigor institutional staking demands
• Harden shared platform infrastructure: EKS environments, GitOps pipelines,secrets management, networking, CI/CD, and the data plane
• Partner closely with clients on integration work across staking, tokenization, DeFi, and validator engagements. Translate their constraints into platform requirements and ship the code that closes the gap
• Generalize patterns from client work into reusable platform capabilities — so the next engagement doesn't start from zero
• Operate production systems where the failure mode is institutional money and reputation. On-call, incident response, post mortems
• Contribute to architecture decisions across modules — staking, MPC quorum coordination, policy engine, vaults