GenAI/Python Developer - AI/ML - Newyork, NY - Citi
At a glance
Mid-level AI Engineering role at Fa Ertb Saasfaprod1. United States · $155,000–$217,000 base.
aimlroles summary, based on the employer's posting.
What you'll do
- Build and coordinate GenAI workflows with LangGraph, LangChain and multi-agent designs
- Create RAG systems with LlamaIndex and vector databases, tuning retrieval to improve answer relevance and accuracy
- Connect and assess commercial and open-source models, weighing application needs alongside performance and cost
- Develop Python APIs and backend services, then tune them for speed, scale, cost and reliability
- Customize models, improve prompts, monitor applications and support containerized cloud deployments through CI/CD
What you bring
- Strong Python skills and practical experience with LangGraph, LangChain, LlamaIndex, RAG and vector databases
- Hands-on work building scalable GenAI applications, integrating LLMs and adapting models for domain-specific needs
- Experience with FastAPI, asynchronous programming, model fine-tuning and production AI optimization
Who this fits
This role suits a hands-on developer who builds and supports production GenAI applications, APIs and retrieval systems. You’ll work across engineering, AI/ML, architecture and product teams. Independent contractors are not eligible.
From the employer
Job Description: GenAI/Python Developer – AI/ML
Role Overview
We are looking for an experienced GenAI/Python Developer to design, build, and deploy production-grade Generative AI applications and intelligent agent-based solutions. The ideal candidate will have strong expertise in Python, LangGraph, LangChain, LlamaIndex, RAG, vector databases, LLM integration, and multi-agent architectures.
The role requires hands-on experience building scalable AI solutions, integrating commercial and open-source LLMs, fine-tuning models, and optimizing GenAI applications for performance, latency, cost, reliability, and production scalability.
Key Responsibilities
- Design, develop, and orchestrate sophisticated Generative AI workflows using LangGraph, LangChain, and multi-agent architectures.
- Build and maintain advanced Retrieval-Augmented Generation (RAG) solutions using LlamaIndex and vector databases.
- Design retrieval pipelines focused on improving the accuracy and relevance of LLM-generated responses.
- Integrate and evaluate multiple commercial and open-source LLMs, including OpenAI, Anthropic, Llama, and Mistral, based on application, performance, and cost requirements.
- Develop scalable and high-performance backend services and APIs using Python, FastAPI, and asynchronous programming.
- Fine-tune and customize LLMs for domain-specific use cases using PyTorch, TensorFlow, Hugging Face, LoRA, and QLoRA.
- Apply advanced prompt engineering techniques to improve LLM response quality and application performance.
- Optimize GenAI workflows for latency, cost, scalability, and reliability.
- Implement monitoring and observability for LLM applications using tools such as LangSmith and Langfuse.
- Containerize AI applications and services using Docker and support production deployments through CI/CD pipelines.
- Deploy and maintain GenAI solutions across cloud environments such as AWS, Azure, or GCP.
- Collaborate with engineering, AI/ML, architecture, and product teams to convert business requirements into scalable AI solutions.
- Troubleshoot and optimize production AI applications, APIs, retrieval pipelines, and model integrations.
Compensation, Benefits and Duration
Minimum Compensation: 155,000 USD
Maximum Compensation: 217,000 USD
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full-time employees.
This position is not available for independent contractors
No applications will be considered if received more than 120 days after the date of this post.