Senior Python Developer

Salary: $166,400 - 187,200 per year Requirements: Strong Python programming skills, including FastAPI and asynchronous programming. Experience with LLMs such as OpenAI, Gemini, Claude, or Llama. Knowledge of PyTorch, TensorFlow, LangChain, LlamaIndex, or Hugging Face. Experience with RAG, PostgreSQL, vector databases, and advanced retrieval. Knowledge of prompt engineering, AI workflow orchestration, Docker, and production API deployment. Responsibilities: Develop scalable Python applications, APIs, and asynchronous workflows. Design and optimize data models, databases, and vector search solutions. Build and integrate AI/ML, LLM, GenAI, and RAG-based solutions. Implement AI frameworks, multi-agent workflows, and model fine-tuning. Deploy, monitor, and optimize production services. Collaborate with product, architecture, and engineering teams. Technologies: AI API Docker FastAPI Fine-tuning LLM PostgreSQL PyTorch Python RAG TensorFlow More: We are seeking a Senior Python Developer to build scalable, data-driven applications and AI-powered solutions, including GenAI, LLM, and RAG-based systems, while developing high-performance services and delivering production-ready solutions with cross-functional teams. This is an 8-month role based in Rutherford, New Jersey, with three onsite days per week and compensation of $80–$90 per hour on W-2. Dexian provides staffing, IT, and workforce solutions, with more than 12,000 employees and 70 locations worldwide. Formed in 2023 through the merger of DISYS and Signature Consultants, we connect talent, technology, and organizations. We are an equal opportunity employer and recruit and hire qualified candidates without regard to protected characteristics. last updated 41 week of 2026