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Senior Backend Engineer

Jeen.ai·Israel·en
Not specifiedFull-timeBackend DevelopmentEnterprise Software

Develop backend services and production-ready voice and chat AI solutions for an enterprise conversational AI platform. Work with Product, AI, and DevOps teams on scalable systems.

Responsibilities

  • Develop production-grade voice and chat AI agents.
  • Build scalable backend services using Python and FastAPI.
  • Integrate AI providers and services.
  • Design scalable, multi-tenant SaaS architecture.
  • Improve performance, latency, scalability, and system reliability.
  • Contribute to architecture discussions and technical planning.
  • Maintain code quality through testing, code reviews, and engineering best practices.

Requirements

  • At least 6 years of backend or full-stack development experience, with a strong backend focus.
  • Strong hands-on experience with NestJS and TypeScript.
  • Experience designing scalable backend services and architectures, REST APIs, asynchronous services, and distributed systems.
  • Experience with PostgreSQL, Redis, and relational data modeling.
  • Experience with Python and FastAPI or a similar backend framework.
  • Experience with React and modern frontend development.
  • Experience integrating LLM APIs such as OpenAI, Azure OpenAI, Gemini, or Claude.
  • Experience with Git, CI/CD, Docker, and production environments.

Nice to have

  • Experience with Voice AI or conversational AI applications.
  • Experience with SIP, VoIP, telephony systems, Twilio, or enterprise communication platforms.
  • Experience with RAG pipelines, vector databases, Kubernetes, or MCP.
  • Experience deploying enterprise SaaS and on-premise solutions.

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