Senior Software Engineer

Who are Heidi?

Heidi is on a mission to halve the time it takes to deliver world-class care.

We believe that by 2050, every clinician will practice with AI systems that free them from administrative burdens and increase the quality and accessibility of care to patients across the world.

Built for clinicians, by clinicians, at the core of Heidi is its people. We are an eclectic bunch of inventors, builders, scientists, nurses, doctors, mathematicians, designers, creatives, and high-agency executors.

We achieve in 6 months what it takes our competitors 4 years to do. In just 12 months, 20 million patient consults were supported by Heidi, and we're now powering more than 1 million consults every week.

With our most recent $16.6MM round of funding from leading VC firms, we're geared up to supercharge our ambitious global growth, starting with the US, Canada, UK and Europe - and we need great people like you to get there. Ready for the challenge?

The Role

Working closely with our Engineering Manager - Agents and Automations, you'll be a Senior Backend Software Engineer who designs and scales the services that power our AI-driven products

What you'll do:

• Architect and build backend services that power LLM-based agents and clinical automations.
• Design robust APIs & data models that are secure, observable and easy for other teams to extend.
• Optimise performance and cost—profile hot paths, tune databases and right-size cloud resources.
• Automate quality: write unit / integration tests, craft alerts and own on-call runbooks so clinicians can trust every interaction.
• Partner with product, AI and front-end engineers to ship new capabilities from concept to production in weeks, not quarters.

What we will look for:

• Mastery of software-engineering fundamentals; Python is our primary language, but you move fluently between technologies when the problem demands.
• Proven experience designing APIs (REST or GraphQL) and event-driven systems (Kafka, Pub/Sub or similar).
• Deep database expertise—schema design, query optimisation and scaling for both relational and NoSQL stores.
• Cloud fluency (GCP or AWS): containers, CI/CD, infrastructure-as-code, security and observability.
• Track record of shipping and operating distributed systems at scale with high reliability
• Rigorous testing, code-review and documentation habits that elevate team standards.
• Bonus points: hands-on work with AI/LLM services or real-time audio/streaming pipelines.

Attitude is more important than experience so if you are a hungry, competitive and highly motivated operator who has a knack for problem solving and building relationships, we want to hear from you.

What do we believe in?

• We create unconventional solutions to difficult problems and we build them fast. We want you to set impossible goals and make them happen, think landing a rocket but the medical version.

• You'll be surrounded by a world-class team of engineers, medicos and designers to do your best work, inspired by our shared beliefs:

• We will stop at nothing to improve patient care across the world.

• We design user experiences for joy and ship them fast.
• We make decisions in a flat hierarchy that prioritizes the truth over rank.
• We provide the resources for people to succeed and give them the freedom to do it.

Why you will flourish with us ?

• Flexible hybrid working environment, with 3 days in the office.
• Additional paid day off for your birthday and wellness days
• Special corporate rates at Anytime Fitness in Melbourne, Sydney tbc.
• A generous personal development budget of $500 per annum
• Learn from some of the best engineers and creatives, joining a diverse team
• Become an owner, with shares (equity) in the company, if Heidi wins, we all win
• The rare chance to create a global impact as you immerse yourself in one of Australia's leading healthtech startups
• If you have an impact quickly, the opportunity to fast track your startup career

Help us reimagine primary care and change the face of healthcare in Australia and then around the world.