Flatiron Health
Senior Software Engineer
NY office +1 · Senior · Full-time · Posted Oct 30, 2026
- Location
- NY office
New York, NY, United States - Experience
- 5–8 years building and shipping production software, including technical leadership of a project or team.
About the job
Lead the technical design, modernization, and rollout of electronic prescribing in OncoEMR, building safe prescribing workflows and supporting clinicians.
What you'll do
- Lead eRx technical design and delivery, including standards upgrades and vendor verification.
- Modernize legacy WebForms and VB.NET workflows into React micro-frontends and .NET services; write and review code across the stack.
- Coordinate with product, design, QA, and oncology experts; mentor engineers and help shape team practices, including AI tool use.
What they ask for
- 5–8 years building and shipping production software, including technical leadership of a project or team.
- Production software experience in a modern language and comfort with a large, long-lived codebase.
- Full-stack web development experience across front-end interfaces, back-end services, REST APIs, and relational databases.
- Experience leading complex cross-team projects from planning through rollout, making architecture tradeoffs, and mentoring engineers.
Nice to have
- Experience with AI coding tools, LLM- or AI-agent-powered features, or evaluating AI output for quality and safety.
- Experience in a regulated environment, such as ONC certification, HIPAA, or DEA/EPCS.
Tools
C#, VB.NET, React, WebForms, .NET, REST APIs, relational databases, Claude Code
AI focus
Help shape team use of AI tools across the development lifecycle; experience with AI coding tools, LLM- or agent-powered features, or AI-output evaluation is a plus.
Model-written summary · the original posting is authoritative