Senior Data Scientist (AI Evaluation & Improvement)

Your Future Evolves Here Evolent partners with health plans and providers to achieve better outcomes for people with most complex and costly health conditions. Working across specialties and primary care, we seek to connect the pieces of fragmented health care system and ensure people get the same level of care and compassion we would want for our loved ones. Evolent employees enjoy work/life balance, the flexibility to suit their work to their lives, and autonomy they need to get things done.

We believe that people do their best work when they're supported to live their best lives, and when they feel welcome to bring their whole selves to work. That's one reason why diversity and inclusion are core to our business. Join Evolent for the mission.

Stay for the culture. What You’ll Be Doing: Core

Own the diagnostic loop for LLM-based clinical services: take failure modes surfaced by clinical reviewers and product managers, form root-cause hypotheses (prompt design, context assembly, retrieval, guideline encoding, model behavior, upstream data), and design experiments that isolate the cause. Test candidate fixes — prompt and configuration variants, context changes, model alternatives — and verify improvements with structured evaluations, not anecdotes; confirm fixes don't regress other behavior. Own the evaluation roadmap and quality bar for the team's AI services: which metrics gate deployment, how golden sets and regression suites grow, and what "good enough to