Backend EngineerAI Gateway (Korean Required)

We are building an AI Gatewaya highperformance intermediary that routes inspects and governs traffic between enterprise clients and LLM/AI service this role you will own the entire fullstack lifecycle of the gateway from core Python API service design and implementation to containerization deployment monitoring and daytoday operations.

While you can consult network and security specialists for architecture reviews threat modeling and policy definition the application code testing CI/CD pipeline and production operations will be developed and maintained solely by you. Youll have full technical autonomy to design build and scale a robust productiongrade system.

Qualifications :

What we are looking for

• Experience: Around 5 years of professional backend development experience with a solid track record of building and operating production-grade services.
• Async Python & Core Web Frameworks (3 yrs): Deep understanding of asyncio and hands-on production experience with FastAPI (Pydantic dependency injection OpenAPI).
• Network Protocol & Streaming Fundamentals:
  • Strong grasp of HTTP/1.1 HTTP/2 and SSE (Server-Sent Events) / Chunked transfer encoding essential for real-time LLM inference streaming.
  • Practical understanding of the TCP/IP lifecycle connection pooling keep-alive and managing back-pressure.
• Database & Async Messaging:
  • Proficiency in PostgreSQL (query tuning connection pooling via PgBouncer).
  • Experience with message queues or event streams (e.g. Redis Streams RabbitMQ or Kafka) for decoupled task processing.
• Containerization & CI/CD:
  • Docker Kubernetes (basic workload management deployment HPA) and setting up CI/CD pipelines (GitHub Actions / GitLab CI).

Work experience desired

• Collaborative Security & Infra Awareness: Willingness to work with internal security/network teams on NGINX/Envoy reverse-proxy setup mTLS or IAM/SSO (OIDC/SAML) integrations.
• AI/LLM Integration: Experience handling LLM API payloads managing rate limits or implementing simple proxy/gateway patterns for AI services.
• Infrastructure as Code: Basic familiarity with Terraform for multi-env infrastructure management.

Additional Information :

All your information will be kept confidential according to EEO guidelines.

Remote Work :

No

Employment Type :

Contract