Moonshot - Senior Backend Engineer

• Design, build, and operate Identity & Access Management services: • Authentication flows, sessions, device trust. • Authorization and entitlements (roles, permissions, policies). • Security controls such as MFA and key management (working with security teams). • Own financial operations systems: • Transfers and payments orchestration. • Ledgering and reconciliation flows. • Limits, risk controls, and transactional correctness. • Build and maintain blockchain infrastructure: • Node and RPC management. • Transaction submission, monitoring, and retry logic. • Indexing and streaming of on-chain data into internal services and data stores. • Define and uphold reliability and observability standards: • SLOs and error budgets for core services. • Dashboards, alerts, runbooks, and incident management practices. • Lead large, cross-functional technical projects from design through rollout, collaborating with Product, Security, and Ops. • Mentor and guide other engineers, contributing to engineering standards, design reviews, and documentation. • Stay close to industry best practices in auth, key management, and secure infrastructure for crypto and trading. • What We Look For in You • 5–12+ years of backend or product or platform engineering, including experience with high-scale, high-availability systems in fintech, crypto, or similar domains. • Deep expertise in at least one of: • Identity & access / security engineering • Financial systems / ledgering / payments • Blockchain infrastructure / on-chain data • Strong experience designing and operating distributed systems (datastores, queues, streaming, background workers). • Track record driving architecture decisions and seeing them through implementation and adoption. • Strong operational mindset: monitoring, on-call, incident response, and postmortems. • Excellent collaboration skills, especially with Product, Security, and Ops.