Protocol Engineer (Platform)

Join Galaxy, a leading company in the blockchain industry. As a Senior Platform Engineer, you will be responsible for owning and operating Ethereum validator infrastructure at scale, building and maintaining the platform layer underneath validator operations, and partnering closely with clients on integration work. You will also contribute to architecture decisions across modules and operate production systems where the failure mode is institutional money and reputation.

• Posséder et exploiter l'infrastructure des validateurs Ethereum à grande échelle, y compris les clients de consensus et d'exécution.
• Construire et maintenir la couche de plateforme sous-jacente aux opérations des validateurs, y compris la gestion du cycle de vie des clusters et les mises à niveau des clients.
• Collaborer étroitement avec les clients pour comprendre leurs systèmes, traduire leurs exigences en capacités de plateforme et collaborer sur les intégrations.
• 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
• Experience with MEV infrastructure — mev-boost, relay operation,builder/proposer separation, and its implications for validator profitability and performance
• 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
• Strong software engineering fundamentals in at least one systems-capable language (Go, Rust, Python, TypeScript — what you've shipped matters more than which)
• Familiarity with tokenization or DeFi protocol integration at the infrastructure level
• Experience with MPC, threshold signing, or secure enclaves (Nitro, SGX) in production
• For staff candidates: a track record of setting technical direction across multiple teams or engagements, and of growing the engineers around you
• 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
• Comfort being customer-facing. You'll sit with client engineers, understand their constraints, and ship into their environment. Strong written and verbal communication
• Experience with distributed validator technology (DVT) — Obol, SSV, or similar
• Broader multi-chain infrastructure experience: Solana, Cosmos-SDK chains, L2s, or other PoS networks with their own client ecosystems