Senior Software Engineer

Heidi is building an AI Care Partner that supports clinicians every step of the way, from documentation to delivery of care. We exist to double healthcare’s capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million patient visits. Today, more than two million patient visits each week are powered by Heidi across 116 countries and over 110 languages. Founded by clinicians, Heidi brings together clinicians, engineers, designers, scientists, creatives, and mathematicians, working with a shared purpose: to strengthen the human connection at the heart of healthcare. Backed by nearly $100 million in total funding, Heidi is expanding across the USA, UK, Canada, and Europe, partnering with major health systems including the NHS, Beth Israel Lahey Health, MaineGeneral, and Monash Health, among others.

The UK healthcare system is defined by its friction—complex billing requirements, rigid EHRs, and administrative burden that pulls clinicians away from patients. We're looking for a Senior Software Engineer to turn that friction into flow. You’ll build the systems that make Heidi feel native to UK healthcare, integrating deeply into the infrastructure clinicians actually use. This includes building AI systems that handle the complexity of UK healthcare so clinicians don’t have to. You will work across the full stack—from AI pipelines that understand clinical documentation to integrations that put the right information in the right place at the right time.

What you’ll do:

• Build systems that live inside clinical workflows: You'll shape how Heidi integrates with the EHRs that run UK healthcare, aiming to make Heidi feel like a native capability rather than a plugin.
• Turn clinical complexity into simple experiences: You’ll build systems that absorb US healthcare billing rules, compliance requirements, and payer constraints so clinicians never see them.
• Build for trust and quality: Write clean, testable code with strong interfaces, thoughtful error handling, and observability.
• Own outcomes, not just code: You'll care about whether the things you build actually help clinicians and improve practice revenue—not just whether they technically work.
• Ship agentic workflow functionality: Build systems where AI assists with extraction, reconciliation, and drafting across workflows, with human review, auditability, and clear controls.
• Operate in close collaboration: Work day-to-day in a highly collaborative environment, including frequent pairing and shared ownership of design and implementation.
• Grow with the domain: Learn how healthcare organizations operate in practice, especially the requirements and constraints that come with serving US customers, and translate that into product improvements.

What we’re looking for:

• 5+ years of software engineering experience: with a track record of shipping complex systems that real users depend on.
• Strong full-stack fundamentals and experience contributing to user-facing products end-to-end.
• Sound engineering judgment: You make sensible trade-offs, keep scope clear, and improve quality through testing, readable code, and thoughtful design.
• Ownership and follow-through: You take responsibility for what you commit to, communicate clearly when something changes, and unblock yourself or escape early.
• Collaborative working style: You work well with others, enjoy building in a tight feedback loop, and are comfortable pairing and sharing work in progress.
• Comfort with ambiguity: You can engage with messy problems, ask good questions, and drive toward a practical, shippable solution.
• Fluency with AI coding tools: You use modern AI tools to accelerate delivery, while staying rigorous about correctness and validation.
• Experience with agentic frameworks: Modelling complex domains, orchestration, and event-driven architectures is a plus.

Benefits:

• Real product momentum: You’ll be part of a rapidly growing startup delivering tangible value to clinicians and patients.
• Equity from day one: When Heidi wins, you win.
• Unmatched impact: Play a pivotal role at a critical growth moment.
• Work alongside world-class talent: Join a team of operators and builders who’ve scaled unicorns.
• Global reach: Help shape our international expansion.
• Growth and balance: Personal development budget, wellness days, subsidised gym membership, and your birthday off.
• Flexibility that works: Hybrid environment with 3 days in the office.

Heidi’s commitment to Diversity, Equity and Inclusion: Heidi is dedicated to creating an equitable, inclusive, and supportive work environment that brings people together from diverse backgrounds, experiences, and perspectives. Our strength is in our differences. We’re proud to be an equal opportunity employer and welcome all applicants as we are committed to promoting a culture of opportunity for all. Help us reimagine primary care and change the face of healthcare in the UK and beyond.