Senior Software Engineer

Primary Responsibilities

• Contributions to architecture and delivery of ML/GenAI solutions (classification, forecasting, LLM apps) at production scale
• Build robust data/feature pipelines over large clinical/claims datasets; write efficient, well-tested Python (pandas/NumPy) and SQL
• Develop and deploy LLM capabilities: prompt design, fine-tuning, RAG pipelines and evaluation with guardrails
• Work closely with lead engineers to develop the best technical design and approach for new product development
• Collaborates closely with Business Analysts on developing requirements and may assist with estimating
• Instill best practices for software development and documentation, assure designs meet requirements, and deliver high-quality work on tight schedules
• Operational Excellence - build, deploy, monitor, and operation of production services
• Establish LLM Ops best practices: CI/CD, model registry, experiment tracking, monitoring, drift detection, A/B testing, cost/perf optimization

Required Qualifications

• Bachelor's degree in Computer Science or equivalent program
• 5+ years of Azure cloud experience or equivalent cloud experience
• 5+ years of hands-on experience with Java and Python
• 1+ years of AI experience
• 1+ years of AI, LLMs, embeddings, RAG, fine-tuning, evaluation experience

Preferred Qualifications

• Strong foundation in machine learning, statistics, optimization, and probability
• Hands‑on experience with:
• Classical ML, deep learning, and Generative AI models
• Model evaluation, validation, and performance tuning
• Proficiency in Python and modern AI libraries
• Experience with RAG frameworks and vector databases
• Solid foundation in statistics and ML (hypothesis testing, experimental design, feature engineering, supervised/unsupervised methods)
• Experience building scalable, cloud‑native AI systems (Azure)
• Strong software engineering practices: GitHub, code reviews, CI/CD

Benefits

Our mission of helping people live healthier lives extends to our team members. Learn more about our range of benefits designed to help you live well.

Qualifications

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Application Deadline

This will be posted for a minimum of 2 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants.

About the Role

We are committed to helping people live healthier lives and making the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location, and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups, and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.

Pay

The salary for this role will range from $91,700 - $163,700 annually based on full-time employment. We comply with all minimum wage laws as applicable.

Schedule

All Telecommuters will be required to adhere to UnitedHealth Group's Telecommuter Policy.