Senior Software Engineer - Fullstack

We’re Heidi.

We're building the future of healthcare by giving every clinician the earth's finest AI Care Partner. Our platform has absorbed the administrative chaos of 175 million patient visits and supported 67 million clinical hours. Today, we support 2.8 million patient sessions a week across 190+ countries, in 110 languages and over 200 specialties.

Healthcare systems are failing us; clinicians spend more time on documentation than on patients, and the human connection that makes medicine worth practicing is eroding. Our mission is simple: double the world’s capacity for care and strengthen the human connection at its heart.

We found product-market fit with a freemium medical scribe that clinicians love. Now, we're expanding. Every task a clinician hands to Heidi is a patient who feels more attended to, a health system unclogged, and a clinician who gets to be a clinician again.

We’ve grown annual recurring revenue from $1 million to $50 million in two years.

To go further, we’ve secured US$340 million: a $100 million Series C led by Blackbird, with Phoenix Court, Point72 Private Investments and Headline, alongside a $240 million growth investment led by General Catalyst’s Customer Value Fund.

If you want to join us in doing work worth shipping, jump in.

The role

You'll join the team that enables clinicians to work together in Heidi, from small clinics to major hospital networks. We work as both a feature team and a platform team, so one week you ship a collaboration feature in the web or mobile app and the next you strengthen the foundations under it. The hard part is making collaboration frictionless while keeping patient data safe at hospital scale.

What you’ll do

• Own the delivery of collaboration features: Take each feature from spec to production, so clinical teams work together with less friction.

• Build for other teams: Design the shared APIs and building blocks that let other Heidi teams add collaboration and access control to their own work.

• Run authorization at scale: Own the service that answers tens of millions of access checks a day, and design the data models and migrations that keep it fast and correct as Heidi grows. Patient privacy and data integrity are non-negotiable.

• Work across the stack: Build in React and TypeScript on the frontend and Python on the backend. You'll go deep on one side and build range on the other.

• Partner across disciplines: Work with your tech lead, PM and designers to turn clinical workflows into features that clinicians use. Shape technical decisions and take on larger pieces of the system as your context grows.

What you'll need

• Eagerness to take on problems you haven't seen before, with a record of picking up new tools and domains on your own

• Experience owning the delivery of features from spec to production

• Adaptability when priorities shift, plus comfort moving between frontend and backend

• You lead the way on AI tooling in your team. You know how to get the gains you want from AI tools in your own engineering work, and you help others do the same

• A product mindset: you care how your work helps clinicians deliver better care, and you're motivated by seeing them use what you build

• 2+ years building production software in Python, TypeScript or both, with solid grounding in APIs and data modeling, depth in at least one area and the speed to become useful in the others

• Sound judgment on trade-offs, including when patient data calls for slowing down

Nice to have

• Experience with multi-user features such as permissions or sharing

• Familiarity with FastAPI or MongoDB

• Experience with feature flags and experimentation

How we show up

• Build for the next decade, not next quarter. Our targets are outrageous on purpose. The world's health doesn't have the luxury of incrementalism.

• Lead, don't wait. We treat tomorrow's problems today. Sometimes we build what's needed before it's wanted, and we're fine with that.

• Follow the evidence. Trust the patient. We pursue truth relentlessly. But when the subjective and objective disagree, we treat the patient, not the numbers. Ego is a comorbidity we can't afford.

• Own the outcome. Everyone here carries the company. Raise problems with solutions, solve them end-to-end, and never be a bystander.

• Ship, measure, go again. A button today, a workflow tomorrow. More iterations beat better planning. We're precise at pace, not reckless.

• Live in clinicians' reality. Not the ideal workflow, the twenty-patients-before-lunch actual one. We build for exhausted humans, and we'd better be decent ones while we do it.

Why Heidi?

You’ll join a team measured on real-world impact, not press cycles. We live and breathe the challenges of modern health systems, and are laser-focused on exacting the change we’d like to see. We’re medicos, engineers, builders and designers who’ve felt (on every side of the equation) what non-care feels like, the moral and practical toll as a provider or receiver.

Building what we’re building isn’t always easy. Standard tech playbooks routinely fail in healthcare, and the friction of the medical system will test your perseverance. But we didn’t choose easy, we chose a purpose-driven mission that actually matters. We hold ourselves to a higher standard because healthcare demands it. If you join Heidi, you recognize that the deeper question isn’t whether AI can solve the global healthcare crisis, but whose hands will shape it.

True A-players progress extremely fast here. The nature of the scale-up game is demanding, but we value sustainable performance and mental health. You're trusted to perform, and you set your schedule. We operate on outcomes > inputs, not process theatre. We all take the bins out, metaphorically and literally.

We offer a $1,000 annual learning and development budget, a $150/month health and wellness allowance, a $500 home office budget, 26 weeks paid primary parental leave and 18 weeks paid secondary parental leave, fertility support up to $10,000, four weeks of work from anywhere per year, and serious equity.

We chose to open-source our benefits hub, if you care to take a peek.