Senior Machine Learning Engineer

Motion Recruitment is seeking a Senior Machine Learning Engineer for a hybrid position based in Worcester, Massachusetts. In this role, you will translate applied AI capabilities into secure, scalable features across the applied AI stack, working on areas such as generative AI/LLM applications, intelligent search, and agent-based systems.

This hands-on position focuses on building production-ready machine learning solutions for a large enterprise product ecosystem, with an emphasis on reliability, privacy, and operational excellence.

What you’ll do

• Lead end-to-end work as a hands-on engineer, including design, implementation, testing, and delivery
• Develop AI-powered capabilities that enable research, summarization, discovery, and knowledge-based decision making
• Architect distributed machine learning services that operate reliably across a large enterprise product ecosystem
• Build and connect components including retrieval pipelines, model services, agent frameworks, and supporting APIs
• Collaborate with application, platform, data, and security teams to meet requirements for performance, resilience, privacy, and scale

Key requirements

• Proven success delivering machine learning or artificial intelligence systems in production environments
• Practical experience designing applications that use LLMs, AI agents, and tool-driven workflows
• Knowledge of RAG patterns, including embedding models, vector stores, and relevance-focused retrieval techniques
• Familiarity with operational ML practices such as testing, deployment automation, observability, and model governance
• Strong Python development skills and sound software engineering fundamentals
• Experience building cloud-native solutions with AWS and container orchestration platforms such as Kubernetes

Technologies

• Python
• LLMs
• RAG patterns
• Embedding models
• Vector stores
• AWS
• Kubernetes

Education

Bachelor’s degree or higher in computer science, machine learning, engineering, or a closely related field.

Benefits

• Eligible for a performance-based bonus program
• Comprehensive medical insurance
• Dental insurance
• Vision insurance
• Paid time off and company leave programs
• 401(k) retirement plan, including an employer match where applicable

Preferred background

• Exposure to legal technology, enterprise search, publishing, compliance, or another information-dense product domain
• At least 12 years of software development experience, or 8+ years of development experience together with a PhD

Work authorization

This position follows a hybrid schedule based in Worcester, Massachusetts. Candidates must be authorized to work full-time in the United States both now and in the future.