DevJobs

AI Full Stack Engineer

Overview
Skills
  • TypeScript TypeScript ꞏ 3y
  • Python Python ꞏ 3y
  • React React ꞏ 3y
  • Redis Redis
  • PostgreSQL PostgreSQL
  • RESTful API RESTful API
  • Azure Azure
  • FastAPI ꞏ 3y
  • OpenAI
  • Pydantic
  • Gemini
  • Alembic
  • TTS
  • Celery
  • STT
  • SQLAlchemy
  • VoIP
  • MeiliSearch
  • Vector databases
  • SIP
  • embeddings
  • RAG
  • MCP
  • OpenSearch

About us

Jeen.AI is an enterprise AI platform that enables organizations to build, deploy, and scale advanced AI agents, automations, and knowledge-driven systems across cloud and on-prem environments. We provide a secure and flexible foundation for companies to integrate AI deeply into their operations.


Under Jeen, Jeen Talk is a dedicated product line focused on building a B2C AI platform for enterprises - enabling businesses to create and deploy real-time voice and chat agents that interact directly with customers at scale.


We are looking for a highly motivated AI Full Stack Engineer to join the Jeen Talk team and help build the next generation of real-time AI voice systems.


Why Join Us?

  • Build a real production-grade voice AI platform
  • Work on real-time systems at scale
  • Be part of a fast-growing AI company with real enterprise traction
  • Own features end-to-end - from idea to production
  • Work with cutting-edge AI + voice technologies


At Jeen Talk, you’ll work across the full stack - from real-time audio pipelines to scalable backend systems and modern frontend interfaces


Key Responsibilities:

  • Develop AI-powered voice agents using modern voice frameworks
  • Build and maintain FastAPI-based REST APIs with complex session and webhook logic
  • Develop React + TypeScript frontend with real-time audio and data visualization
  • Build Python microservices for Transcription, Call analysis, Alert scheduling (Celery)
  • Integrate leading AI providers LLMs (OpenAI, Azure, Google), TTS / STT engines
  • Design and improve real-time voice infrastructure and telephony (SIP/VoIP) systems
  • Take part in architectural decisions across the platform
  • Ensure high code quality with testing and best practices


Requirements:

  • 3+ years of full-stack development experience with React + TypeScript, Python (FastAPI or similar async frameworks)
  • Experience with: SQLAlchemy, Alembic, Pydantic v2, PostgreSQL,Redis
  • Solid understanding of REST API design (auth, webhooks, multi-tenant systems), Async systems and task queues (Celery)
  • Experience integrating LLM APIs (OpenAI, Azure, Gemini)
  • Familiarity with STT/TTS providers
  • Strong understanding of real-time systems and latency tradeoffs
  • Strong communication skills (English & Hebrew)
  • Ability to think critically about Model limitations, Hallucinations and Performance vs cost tradeoffs.
  • Deep understanding of software engineering methodologies, including design patterns and scalable system design.


Preferred Qualifications

  • Experience building real-time voice AI systems
  • SIP / VoIP / telephony integration experience
  • Experience with RAG pipelines, Vector databases / embeddings
  • Familiarity with MCP (Model Context Protocol)
  • Experience with on-prem / self-hosted AI deployments
  • Experience with search systems (MeiliSearch / OpenSearch / similar)
  • Strong product thinking - ability to surface risks before they become production issues
Jeen.ai