Senior Backend Engineer - Solana Mobile

Design and own backend architecture for Solana Mobile services, build REST and WebSocket APIs, operate production services, improve CI/CD and infrastructure, own observability, and contribute to device attestation, Seed Vault integration, and off-chain services that compose with on-chain logic.

Responsibilities

• Design and own backend architecture for dApp Store APIs, wallet services, device registry, event tracking, and staking systems.
• Build and maintain REST and WebSocket APIs for Android, Flutter, web clients, and third-party developers.
• Own production services, including on-call rotation, runbooks, post-mortems, and incident follow-up.
• Automate workflow friction and build internal tools that save repeated effort.
• Improve CI/CD reliability and build infrastructure for speed, cost, and reproducibility.
• Conduct code reviews, contribute to technical discussions, and initiate RFCs.
• Drive AWS infrastructure decisions across ECS, RDS, Lambda, SQS, and CloudFront.
• Own observability, including structured logging, metrics, alerting, tracing, and incident response runbooks.
• Contribute to device attestation and Seed Vault integration, including on-chain verification flows.
• Collaborate with mobile engineers on resilient, mobile-first API patterns.
• Work with Protocol Engineers on off-chain services that compose with on-chain logic.

Requirements

• 5+ years of professional backend engineering experience operating production services.
• High ownership and ability to drive problems end-to-end.
• Proactive problem identification and solution delivery.
• Experience using AI coding tools such as Claude Code, Cursor, or Copilot.
• Strong proficiency in TypeScript/Node.js and/or Rust.
• Strong PostgreSQL skills, including schema design, query optimization, indexing, and migrations.
• Working knowledge of Redis caching, pub/sub, and TTL strategies.
• Hands-on AWS experience with ECS, RDS, SQS, S3, and Lambda.
• Understanding of distributed systems, including idempotency, eventual consistency, fault tolerance, and graceful degradation.
• Security awareness covering secrets management, JWT, OAuth2, and OWASP practices.
• Comfort with Docker and containerized deployments.