• Irvine, California
• IT
• $100K - $140K
• Full Time regular employee
•  Monday - Friday; 8 hours a day
•  New

Job Description

Position
Sr. Software Engineer (AI Development)

Summary
A growing startup IT company is seeking a highly skilled Senior Software Engineer to join their team. The ideal candidate will play a key role in designing, developing, and deploying API services powered by Large Language Models (LLMs) while integrating seamlessly with existing TypeScript-based backend systems.

Essential Duties

• Design, develop, and deploy a Python-based API server with LLM
• Build API endpoints using FastAPI
• Implement LLM workflows using LangChain/LangGraph libraries
• Develop vector search functionality with Qdrant DB
• Implement real-time communication with the frontend using WebSockets
• Effectively integrate with the existing TypeScript backend
• Optimize LLM functionality for performance and cost
• Collaborate with team members to improve the overall system
   

Working Hours, Working style
Monday - Friday; 8 hours a day

• Core hours: 9:30 AM – 2:30 PM (Flexible schedule outside core hours)

Working Location
Irvine, CA

Salary/Benefit
$100K - 140K DOE

• Health insurance
• Retirement plan (simple IRA)
• Paid time off (PTO) & sick leave

Holidays
Saturdays, Sundays, and major US holidays

Qualifications ​​​​​​​
Required:

• Business-level proficiency in English (spoken and written)
• 5+ years of professional experience in Python development
• Proven experience building and deploying production-level applications using LLMs (e.g., GPT, Claude, Azure OpenAI, or Google Gemini)
• Solid understanding of RESTful API design and development
• Experience integrating AI features into real-world applications
• Experience or interest in the following technologies:
  • FastAPI
  • LangChain / LangGraph
  • Qdrant or other vector databases
  • WebSocket communication
  • Basic knowledge of TypeScript and React for integration with frontend systems

Preferred/Plus:

• Familiarity with prompt engineering, fine-tuning, or retrieval-augmented generation (RAG)
• Hands-on experience with OpenAI, Anthropic, or other model APIs in scalable environments
• Awareness of AI safety, latency management, and cost optimization strategies

Apply Now