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Python + Gen AI Developer - New York

Photon
New York, New York, United StatesPosted today
Location
New York, New York, United States
Salary
$56,000 - $196,000/year

Role Summary

We are seeking a Generative AI Engineer to build, optimize, and scale production-ready AI applications. You will design complex multi-agent systems, implement advanced RAG pipelines, and manage the deployment of both frontier and local LLMs. The ideal candidate blends deep machine learning expertise with modern software engineering practices.

Technical Stack

LLMs: Gemini, OpenAI, Claude, Llama, and Local Model deployment.

Frameworks: LangChain, LlamaIndex, and Hugging Face.

Orchestration: LangGraph and Multi-Agent Systems (MAS).

Development: Python, FastAPI, and Asynchronous Programming.

RAG & Data: PostgreSQL, Vector Databases, and Advanced Retrieval strategies.

ML/DL: PyTorch, TensorFlow, and Model Fine-tuning.

Deployment: Docker, Production API management, and LLM monitoring.

Tools: Prompt Engineering, Workflow Design, and GenAI Optimization.

Key Responsibilities

  • Develop and orchestrate sophisticated AI workflows using LangGraph and multi-agent architectures.
  • Build and maintain Advanced RAG systems utilizing LlamaIndex and vector databases for high-accuracy retrieval.
  • Integrate and swap diverse LLMs (commercial and open-source) based on performance and cost requirements.
  • Design and deploy high-performance, scalable backend services using FastAPI and Async Python.
  • Fine-tune large language models (LLMs) using PyTorch/TensorFlow to improve domain-specific performance.
  • Optimize GenAI workflows for latency, cost, and reliability using advanced prompt engineering and monitoring tools.
  • Containerize and deploy AI services via Docker to production environments.

Required Qualifications

  • 7+ years of hands-on experience building and deploying GenAI applications in a production setting.
  • Strong proficiency in Python and the modern AI library ecosystem (LangChain, LlamaIndex, etc.).
  • Experience with vector search, embedding models, and advanced data retrieval patterns.
  • Knowledge of model fine-tuning techniques and local LLM quantization/hosting.
  • Familiarity with production-grade monitoring, API security, and CI/CD for ML.

Compensation and Benefits

Salary: USD 56,000 – USD 196,000 (based on actual experience and qualifications of the candidate)

Benefits: Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full time employees.

Position Type: Full time employees only. This position is not available for independent contractors.

Application Deadline: No applications will be considered if received more than 120 days after the date of this post.

About Photon

Photon is a global IT services and digital transformation company that helps enterprise clients accelerate AI adoption and digital innovation. The company works with 40% of the Fortune 100, providing services including AI and machine learning, cloud solutions, digital strategy, mobile app development, commerce platforms, data analytics, and robotic process automation.

Industry
IT Services and IT Consulting
Head office
London, United Kingdom
Company size
5001-10000
Founded
2007
Artificial IntelligenceMachine LearningGenerative AIDigital TransformationCloud ServicesData AnalyticsMobile App DevelopmenteCommerce and Commerce as a ServiceRobotic Process AutomationIoTAPI ManagementChatbotsDigital StrategyWeb Development
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Python + Gen AI Developer - New York