SeniorStaff Backend & Platform Engineer

About the Role

As a Senior / Staff Backend & Platform Engineer at Moonshot youll own some of the most critical systems in our stack:identity and access funds movement and ledgering and the blockchain infrastructure that powers our on-chain trading.
This role is similar to staff engineers at leading crypto wallets and exchanges who own authentication stacks key management and high-scale financial backends. Youll design build and operate systems that must be both highly reliable and extremely secure enabling product teams to move quickly on a solid foundation.

Key Responsibilities

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.

Requirements
- 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.

Bonus Skills
* Experience with Flutter React Native React Headless CRMs.
* Experience with Go Rust Solana.
* Experience with Google Cloud or Amazon Web Services.
* Experience with crypto wallets exchanges or onchain protocols including DeFi L2s ZK.
* Exposure to data warehousing and analytics for financial reporting.
* Contributions to open-source projects