Note: The job is a remote job and is open to candidates in USA. Roger is an AI platform helping home health clinicians reduce paperwork and focus on patient care. The Senior Applied AI Engineer will build Roger’s intelligence layer by training and fine-tuning models, developing evaluation and monitoring infrastructure, and shipping reliable LLM-powered workflows for clinicians.
Responsibilities
- Train and fine-tune open source models, leveraging our vast proprietary dataset to push accuracy beyond what off-the-shelf models can do
- Build eval datasets and pipelines that let us measure model accuracy rigorously and improve it continuously
- Design how we measure accuracy in the first place: the metrics, harnesses, and feedback loops that turn real clinical outcomes into measurable model improvements
- Build scalable, cost-efficient inference infrastructure with great monitoring and observability
- Build better agentic infrastructure and partner on the interfaces that turn model capability into a great clinician experience
- Stay at the frontier: keep up with the latest research, frontier model capabilities, and open source frameworks, and bring the best of it into production
- Prototype quickly, then harden into scalable, secure, and reliable production systems
Skills
- 7+ years of professional software engineering experience, with meaningful depth in AI/ML
- Experience training, fine-tuning, or evaluating LLMs and open source models, with real opinions about what works and what does not
- Shipped real AI software to real users. You can describe something you built, what broke, and how you fixed it
- Strong instincts for evals, observability, and the feedback loops that turn user feedback into measurable improvement
- Experience building agentic systems: tool use, generator and critic loops, planners and executors, and orchestration where one agent's output drives another's work
- Comfort building infrastructure that is fast, reliable, and cost-efficient at scale
- Startup experience shipping real features in high-growth environments
- A product mindset, comfort across the stack, and the ability to operate in ambiguity without a clean spec
- High standards for reliability and accuracy when real clinicians and patients depend on your work
Benefits
- Platinum health, dental, and vision insurance
- Unlimited PTO
- Retirement: 401(k) plan
- In person and remote opportunities available.
Company Overview