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Open nowPosted 13 hours ago

Senior Software Engineer

Flatiron Health26 open roles

Where
NY office
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Your applicationOpen nowSenior Software EngineerFlatiron Health · NY office

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The clock on this job

Early applications get read.

12.9% of postings close within 7 days. Measured by our own scanner across the market. Flatiron Health postings stay open a median of 52 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 12.9%7 days
  4. 21.0%14 days
  5. 35.6%30 days
  6. 58.5%60 days
This job: posted 13 hours ago

Flatiron Health median: 52 days open

The posting

Reimagine the infrastructure of cancer care within a community that values integrity, inspires growth, and is uniquely positioned to create a more modern, connected oncology ecosystem.

We're looking for a Senior Software Engineer to lead the technical direction of electronic prescribing in OncoEMR, to help us accomplish our mission to improve and extend lives by learning from the experience of every person with cancer. Are you ready to be the next changemaker in cancer care?

What You'll Do

In this role you will lead the technical design and delivery of our electronic prescribing (eRx) modernization, including upgrading to the latest standards and actively partnering with key vendors for verification. You will help break large, ambiguous problems into clear plans, tickets, and milestones, and keep the team aligned on scope, risks, and timelines. In addition you will:

  • Write and review high-quality code across the stack in C#, VB.NET, and React, setting the bar for testing, reliability, and maintainability.
  • Guide the phased move from legacy WebForms and VB.NET workflows to React micro-frontends and .NET services, balancing modernization with the day-to-day needs of clinicians.
  • Partner with product, design, QA, and clinical oncology experts to turn prescriber and pharmacist workflows into thoughtful technical solutions.
  • Build and test safety-critical prescribing workflows that help us meet ONC certification and DEA/EPCS requirements.
  • Mentor engineers through code reviews, pairing, and design feedback, and help shape how the team works, including how we use AI tools across the development lifecycle.
  • At the end of your first year, success would mean having led eRx work from design through rollout, with a team that ships reliably and clinicians who can prescribe with less friction.

Who You Are

You're a kind, passionate and collaborative problem-solver who values the opportunity to think beyond the way things are. In addition, you're a thoughtful, empathetic communicator with 5–8 years of experience building and shipping production software, including technical leadership of a project or team.

  • You have experience building production software in a modern language (e.g., C#, Java, Python, or TypeScript) and are comfortable working in a large, long-lived codebase.
  • You are a full-stack web developer with experience building both front-end interfaces (e.g., React) and back-end services, including REST APIs and relational databases.
  • You have led the technical design and delivery of complex, cross-team projects from planning through rollout, and can make and communicate architecture tradeoffs.
  • You mentor and grow other engineers through code review, pairing, and thoughtful feedback.
  • You are a self-starter who is comfortable working with ambiguity and breaking large problems into clear steps.
  • You are a team-player who gives and receives feedback openly and enjoys working cross-functionally.
  • You are motivated by our mission and want your work to have a direct impact on people with cancer, in software where safety and accuracy matter.

Extra credit

  • You have experience using AI coding tools (e.g., Claude Code or Cursor) to build and test software, and a point of view on what works well.
  • You have experience building features powered by LLMs or AI agents, or evaluating AI output for quality and safety.
  • You have experience in a regulated environment (e.g., ONC certification, HIPAA, or DEA/EPCS) and are interested in continuing that kind of work.

Where You'll Work

In this hybrid role, you’ll have a defined work location that includes work from home and 3 office days set by you and your team. For more information on our approach to hybrid work, please visit the how we work website.

Life at Flatiron

At Flatiron Health, we offer a full range of benefits to support you and your loved ones so you can focus your working hours on improving cancer care and accelerating cancer research, and your non-working hours on everything else life has to offer:

  • Work/life autonomy via flexible work hours and flexible paid time off
  • Comprehensive compensation package
  • 401(k) contribution to help you reach your retirement planning goals
  • Financial health resources including 1:1 financial advice
  • Mental well-being tools and services
  • Parental benefits and policies including family-building care and generous leave
  • Path to parenthood programs supporting fertility, adoption and surrogacy
  • Travel support for safe healthcare services

In addition to our robust benefit offerings, visit our Life at Flatiron page to learn how we support continuous learning and celebrate inclusion and belonging in the workplace.

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