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About MoonshotMoonshot is the “Robinhood for DeFi”—an iOS and Android app that lets anyone trade cryptocurrencies on-chain through a user-friendly interface.Since launch in July 2024, they’ve attracted 2M+ users.Mission: Make moonshots possible for everyone.Vision: Make a world where life-changing financial outcomes are within everyone’s reach.About the roleThis role is full-time, preferably located in NYC. Open to remote for the right candidate.As a Senior Backend & Platform Engineer at Moonshot, you’ll own critical systems in the stack: identity and access, funds movement and ledgering, and the blockchain infrastructure powering on-chain trading. The role is similar to staff engineers at leading crypto wallets and exchanges who own authentication stacks, key management, and high-scale financial backends. You’ll design, build, and operate systems that must be highly reliable and extremely secure—enabling product teams to move quickly on a solid foundation.What you’ll doDesign, build, and operate Identity & Access Management servicesAuthentication 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 systemsTransfers and payments orchestration.Ledgering and reconciliation flows.Limits, risk controls, and transactional correctness.Build and maintain blockchain infrastructureNode 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 standardsSLOs 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 you5–12+ 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 engineeringFinancial systems / ledgering / paymentsBlockchain infrastructure / on-chain dataStrong 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.Nice to havesExperience with Flutter, React Native, React, Headless CRMsExperience with Go, Rust, SolanaExperience with Google Cloud or Amazon Web ServicesExperience with crypto wallets, exchanges, or onchain protocols including DeFi, L2s, ZKExposure to data warehousing and analytics for financial reporting.Contributions to open-source projects.LocationNYC preferred (with periodic in-person sprints).Remote-friendly within the United States and Canada; travel ~1wk/quarterCompensation & packageCompetitive salary and meaningful equity.5% 401(k) match.Health benefits with employer-covered premiums, plus life insurance coverage.One-time office setup stipend.Flexible PTO.
Optionally, you can add more information later (benefits, pre-screening questions, etc.)