Senior AI Backend Engineer for Scalable ML Systems

MilliporeSigma; St. Louis (MO); On-site; USD 110,500 - 165,900; Full time

Benefits offered by this job

Health insurance

Paid time off (PTO)

Retirement contributions

Job summary

MilliporeSigma is seeking a Staff Applied AI Engineer to build scalable, production-grade backend applications that leverage large datasets and power AI-driven solutions. You will collaborate with product managers, software engineers, data scientists, and ML engineers to deliver robust backend services and data-intensive applications.

Responsibilities include leading AI/LLM strategy, designing reliable data ingestion and processing pipelines, and ensuring safe, observable deployments in

Qualifications

• Bachelor’s degree in Computer Science, Engineering, Data Science, or a related quantitative field.
• At least 3 years of hands-on experience in machine learning, data science, search relevance, or ranking systems.

Responsibilities

• Lead technical strategy for AI/LLM systems across multiple products.
• Architect retrieval, orchestration, agentic, and evaluation systems that run reliably in production.
• Set the standards for AI safety, evaluation, observability, and responsible rollout in a regulated context.
• Mentor Junior engineers into strong AI engineers; employ AI Native development skills to multiply productivity.

Skills

Python

REST API

Pandas

NumPy

Education

Bachelor's degree in CS/Engineering/Data Science

Tools

Docker

Git

CI/CD

Job description

MilliporeSigma is seeking a Staff Applied AI Engineer to build scalable, production-grade backend applications that leverage large datasets and power AI-driven solutions. You will collaborate with product managers, software engineers, data scientists, and ML engineers to deliver robust backend services and data-intensive applications.

Responsibilities include leading AI/LLM strategy, designing reliable data ingestion and processing pipelines, and ensuring safe, observable deployments in