We are assisting one of our clients, a new exciting startup which is looking for a full remote:

Senior Backend Engineer

Responsibilities

• Architect, build, and optimize backend systems using TypeScript, NestJS, and Hono.
• Design and document scalable, secure APIs and microservices following OpenAPI/Swagger standards.
• Build robust authentication & authorization frameworks:
  • JWT, OAuth2, API keys
  • RBAC/ABAC permissions
  • Session security & secure cookies
• Implement code-level security patterns aligned with OWASP Top 10, including input validation, secure headers, CSRF/XSS mitigation, rate limiting, and safe error handling.
• Design performant, maintainable MongoDB schemas; optimize queries, indexes, and aggregations.
• Work closely with DevOps to build cloud-native systems running on AWS EKS, with CI/CD, load balancing, and auto-scaling.
• Implement secure and optimized content delivery with AWS CloudFront (signed URLs/cookies, CDN caching).
• Build event-driven and distributed systems using queues/streams (Redis, RabbitMQ, Kafka, SQS).
• Maintain documentation, enforce engineering standards, and lead backend code quality reviews.
• Troubleshoot production issues, optimize performance, and ensure system stability.
• Collaborate across teams (Product, DevOps, Frontend, Media Processing) to deliver high-performance features.

Required Technical Skills
Backend Engineering

• Expert-level TypeScript and experience building large-scale backend systems.
• Deep expertise with NestJS (guards, interceptors, pipes, modules, microservices).
• Strong hands-on experience with Hono for high-performance edge/serverless routing.
• Strong knowledge of API architecture:
  • REST, WebSockets, GraphQL
  • OpenAPI/Swagger documentation
  • API versioning, rate-limits, pagination

Security & Authentication

• In-depth understanding of:
  • JWT, OAuth2, PKCE
  • RBAC/ABAC authorization
  • Input validation, sanitization
  • CORS, secure headers, HTTPS/TLS
  • OWASP Top 10 secure coding standards
• Ability to build secure-by-design backend systems in high-risk environments.

Cloud Native & DevOps

• Strong familiarity with AWS, specifically:
  • EKS, IAM, CloudFront, API Gateway/ALB
  • Lambda, S3, ElastiCache, SQS/SNS
• Understand containerized architecture (Docker), K8s deployments, autoscaling, and observability.
• Experience creating high-availability, fault-tolerant, cost-optimized backend systems.
• Experience with Cloudflare is a plus.

Data & Distributed Systems

• Strong MongoDB expertise: indexing, aggregations, schema design, sharding (advantage).
• Experience with distributed caching and queueing systems:
  • Redis, RabbitMQ, Kafka, SQS
• Experience with media-heavy systems, file processing, and content delivery.