Senior Backend Engineer (Hiring Globally)

Description We are looking for an experienced Senior Backend Engineer to design and build scalable, secure, and high-performance backend services that power our mobile-first platform. The ideal candidate has deep expertise in TypeScript, Node.js, and NestJS, with strong experience designing REST APIs, relational databases, authentication systems, and distributed backend architectures. You will own core backend services, collaborate closely with Product and Mobile teams, and drive engineering best practices across the platform. Requirements - 5+ years of backend development experience. - 3+ years building large-scale mobile-facing APIs. - Strong expertise in TypeScript and Node.js. - Hands-on experience with NestJS or similar backend frameworks. - Strong PostgreSQL database design and query optimization skills. - Expertise in REST API design, versioning, pagination, rate limiting, and error handling. - Experience implementing secure authentication and authorization. - Experience with Redis caching and distributed systems. - Hands-on experience with background jobs and asynchronous processing. - Experience integrating mobile push notifications (APNs and/or FCM). - Strong understanding of observability, logging, monitoring, and production troubleshooting. - Experience working with Git, code reviews, and modern software development practices. - Ability to leverage AI tools effectively for planning, debugging, and improving developer productivity. Nice to Have - Bun runtime in production - Drizzle ORM expertise - OAuth2 / OpenID Connect - CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps) - Performance profiling and optimization - Feature flags and remote configuration - Event-driven architectures, WebSockets, or Server-Sent Events (SSE)