Machine Learning Operation Engineer

About the Role
As a Machine Learning Operations Engineer, you will be responsible for developing and maintaining the cutting edge systems that bring our AI products to life.
You will design, deploy, and scale the systems that power our AI products, enabling investors worldwide to assess the Environmental, Social, and Governance (ESG) performance of companies. Your focus will be on production-grade ML infrastructure: inference endpoints, orchestration, data pipelines, and scalable APIs.
We are looking for engineers who bring a software development mindset into MLOps - testing, monitoring, documentation, and reliability - while also understanding machine learning principles and LLMs in production trade-offs.
Responsibilities

• Build and scale inference endpoints and APIs for both classic ML models and LLMs.

• Develop CI/CD pipelines and automate deployment on AWS (Bedrock, Lambda, EKS, S3, etc).

• Design and maintain data pipelines, queues, and event-driven workflows.

• Integrate vector databases, MCP servers, and retrieval pipelines into production systems.

• Contribute to microservices in Python and support our orchestrator layer.

• Ensure monitoring, observability, and cost-aware operation of deployed ML services.

• Collaborate with AI researchers and software engineers to productize prototypes.

Qualifications

• Strong programming skills in Python (APIs, pipelines, services).

• 3+ years experience in MLOps, backend engineering, data engineering or related roles.

• Good knowledge of ML principles (e.g. precision, recall, inference time, latency/throughput trade-offs).

• Solid knowledge of AWS services (Bedrock, Lambda, EKS, S3, etc).

• Experience with CI/CD pipelines, containerization (Docker/Kubernetes).

• Understanding of microservices architectures, queues/events, and scalability.

• Experience with SQL databases (PostgreSQL).

• Good communication skills and a product-first mindset.

Nice to Have

• Hands-on experience deploying and operating LLMs in production, with awareness of limitations, evaluation, and cost implications.

• Experience with JavaScript/TypeScript

• Experience with Harness

• Familiarity with retrieval-augmented generation (RAG), vector DBs.

• Monitoring/observability tools (CloudWatch, Prometheus, Grafana).

• Infrastructure-as-code (Terraform, Cloudformation).

• Experience with web crawlers or large-scale data ingestion.

Morningstar is an equal opportunity employer
Morningstar's hybrid work environment gives you the opportunity to collaborate in-person each week as we've found that we're at our best when we're purposely together on a regular basis. In most of our locations, our hybrid work model is four days in-office each week. A range of other benefits are also available to enhance flexibility as needs change. No matter where you are, you'll have tools and resources to engage meaningfully with your global colleagues.
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