Senior Software Engineer II

New York, NY · Pittsburgh · New York City, NY · 8+ years experience · Posted Oct 9, 2026

At a glance

The Senior Software Engineer II (L6) sets technical direction across teams and products while remaining hands-on with architecture and development.
This role involves solving high-stakes, ambiguous problems and working directly with company founders and executives to shape strategy.
The position focuses on delivering business results and patient outcomes through practical, scalable technical solutions.

Design and evolve backend and frontend architecture.
Resolve ambiguous, high-risk technical problems.
Conduct design and code reviews.
Own major features from initial design through testing, documentation, monitoring, and launch.
Collaborate with founders and executives to shape strategy and build against it.
Coach engineers and influence team workflows.
Prototype new tools and techniques, using data to settle technical debates.
Communicate technical trade-offs clearly to both technical and non-technical stakeholders.

8+ years of software development experience with increasing scope and impact.
Hands-on experience building with AI coding tools and a track record of team adoption.
History of serving as a technical lead for systems or product areas spanning multiple teams.
Experience working directly with founders or executives.
Deep skills in a modern language such as Python, JavaScript, or Go.
Strong background in distributed systems, API design, and performance work.
Record of raising the technical bar and mentoring senior engineers.
Clear communication skills and the ability to partner with business and product leaders.
CS degree or equivalent experience.