Senior ML Engineer - RAG & GenAI

Factored; United States; Remote; USD 180,000 - 280,000; Full time

Benefits offered by this job

Equity participation

Annual company retreat

Education bonus

Winter break

Paid time off

In-person events

Tailored career roadmaps

High-performance culture

Job summary

Factored is hiring a Senior Machine Learning Engineer with a focus on Retrieval-Augmented Generation (RAG) to design, develop, and deploy cutting-edge AI solutions for high-profile clients in the United States. You will work across data, engineering, and leadership teams to deliver scalable RAG-powered applications and robust ML infrastructure.

The ideal candidate brings 5+ years of production ML experience, strong Python and deep learning fundamentals, and hands-on RAG expertise with frameworks

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Statistics, Mathematics, or a related field.
• 5+ years of hands-on experience developing and deploying machine learning models in production environments.
• 4+ years of experience with production NLP and deep learning models using frameworks like PyTorch and TensorFlow.
• At least 1+ year of experience with Retrieval-Augmented Generation (RAG) and other advanced techniques to optimize model performance.
• Proven experience writing production-level code, with strong proficiency in Python.
• Expertise in working with large language models (LLMs) such as GPT, Gemini, and Claude, along with proficiency in LLM frameworks like LangChain.
• Strong understanding of prompting techniques, and the trade-offs between prompting and fine-tuning.
• Experience with cloud platforms such as AWS or GCP (AWS preferred), or equivalent on-premise platforms.

Responsibilities

• Design, develop, and optimize Retrieval-Augmented Generation (RAG) models that integrate retrieval-based and generation-based approaches to solve complex, real-world problems for our high-profile clients.
• Improve the performance of RAG models through cutting-edge algorithms, innovative techniques, and model fine-tuning.
• Collaborate with client Data and Engineering teams to establish and build robust machine learning infrastructure to meet project goals.
• Work closely with leadership teams from our clients to identify and leverage AI/ML opportunities that can provide transformative solutions.
• Fine-tune and adapt large language models (LLMs) for specific tasks and domains within the RAG framework.
• Partner with cross-functional client teams to deploy RAG models into production environments, ensuring seamless integration and long-term success.
• Apply advanced machine learning techniques, including LLMs, to develop effective AI solutions tailored to client needs.
• Write clean, maintainable, and scalable code, ensuring all development is well-documented and testable.
• Prioritize user experience and customer needs in all product development efforts.
• Design and develop frameworks for GenAI products, such as search interfaces, chatbots, and summarization tools.
• Build and implement machine learning models and algorithms that directly contribute to client growth and success through innovative, AI-driven solutions.
• Provide technical leadership in identifying and evaluating AI/ML opportunities that empower clients to deliver exceptional solutions.

Skills

Production ML

NLP (Deep Learning)

Python

PyTorch

TensorFlow

LLMs (GPT,Gemini,Claude)

LangChain

Cloud (AWS/GCP)

Prompting techniques

Code quality & testing

RAG concepts

Education

Bachelor’s or Master’s in CS/Stats/Math

Job description

Factored is hiring a Senior Machine Learning Engineer with a focus on Retrieval-Augmented Generation (RAG) to design, develop, and deploy cutting-edge AI solutions for high-profile clients in the United States. You will work across data, engineering, and leadership teams to deliver scalable RAG-powered applications and robust ML infrastructure.

The ideal candidate brings 5+ years of production ML experience, strong Python and deep learning fundamentals, and hands-on RAG expertise with frameworks