Moonshot

Senior Backend Engineer

Moonshot
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2 months ago
New York, NY, USASenior / Staff+

Responsibilities

  • Design, build, and operate identity and access management services covering authentication flows, sessions, device trust, authorization, entitlements, roles, permissions, and policies.
  • Implement security controls such as MFA and key management in collaboration with security teams.
  • Own transfers, payments orchestration, ledgering, reconciliation, limits, risk controls, and transactional correctness systems.
  • Build and maintain blockchain infrastructure including node and RPC management, transaction submission, monitoring, retry logic, and on-chain data indexing and streaming.
  • Define and uphold reliability and observability standards including SLOs, error budgets, dashboards, alerts, runbooks, and incident management practices.
  • Lead large cross-functional technical projects from design through rollout with Product, Security, and Ops.
  • Mentor and guide engineers and contribute to engineering standards, design reviews, and documentation.
  • Stay current with industry best practices in authentication, key management, and secure infrastructure for crypto and trading.

Requirements

  • 5–12+ years of backend, product, or platform engineering experience, including work with high-scale, high-availability systems in fintech, crypto, or similar domains.
  • Deep expertise in at least one of identity and access/security engineering, financial systems/ledgering/payments, or blockchain infrastructure/on-chain data.
  • Strong experience designing and operating distributed systems including datastores, queues, streaming, and background workers.
  • Track record of driving architecture decisions through implementation and adoption.
  • Strong operational experience with monitoring, on-call, incident response, and postmortems.
  • Strong collaboration skills with Product, Security, and Ops.
  • Nice-to-have experience with Flutter, React Native, React, or Headless CRMs.
  • Nice-to-have experience with Go, Rust, Solana, Google Cloud, Amazon Web Services, crypto wallets, exchanges, on-chain protocols, DeFi, L2s, or ZK.
  • Exposure to data warehousing and analytics for financial reporting is valued.
  • Contributions to open-source projects are valued.

Benefits

  • Full-time role, preferably located in NYC, with remote work available for the right candidate.
  • Remote-friendly within the United States and Canada, with approximately one week of travel per quarter and periodic in-person sprints.
  • Competitive salary and meaningful equity.
  • 5% 401(k) match.
  • Health benefits with employer-covered premiums and life insurance coverage.
  • One-time office setup stipend.
  • Flexible paid time off.

Tech Stack

AWSFlutterGoGoogle CloudiOSReactReact NativeRust

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