Senior Backend Engineer (Hiring Globally)

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.

Responsibilities

• Design and own backend architecture for authentication, user profiles, activities, preferences, and progress tracking.
• Build and maintain scalable backend services using NestJS and TypeScript.
• Design secure, mobile-first REST APIs with OpenAPI/Swagger documentation.
• Model and optimize PostgreSQL databases using Drizzle ORM.
• Implement secure authentication and authorization using JWT, refresh tokens, sessions, and role-based access control.
• Develop caching strategies and distributed coordination using Redis.
• Build background jobs, scheduled tasks, and notification services.
• Integrate push notification services using APNs and Firebase Cloud Messaging (FCM).
• Implement structured logging, monitoring, tracing, and production observability.
• Collaborate with Product and Mobile teams to define API contracts and ensure an excellent developer experience.
• Write clean, maintainable, and well-tested code with strong ownership from design through production.

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)

Benefits

• Flexible hybrid working policy.
• Professional growth and learning opportunities.
• Opportunity to work on a modern backend platform using the latest technologies.
• A collaborative team of experienced engineers.
• A supportive and inclusive work environment.

Originally posted on Himalayas