Senior Localisation Engineer

Who are Heidi?

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.

We move quickly where it matters and stay grounded in what’s proven, shaping healthcare’s next era. Ready for the challenge?

The Role

As a Localisation Engineer at Heidi, you will be responsible for building and maintaining the technical frameworks that enable our products to be seamlessly localised across multiple languages and regions.

You will partner with product managers, engineers, designers, and linguists to ensure our software is internationalisation-ready, localisation processes are efficient, and the final experience is high-quality in every market.

This role is highly collaborative and technical, you’ll be the bridge between engineering and localisation, automating workflows, troubleshooting issues, and driving improvements in how Heidi delivers global experiences.

What you'll do:

• Design, implement, and optimise localisation workflows and automation pipelines.

• Ensure our products are technically prepared for internationalisation (i18n), covering text handling, date/time/number formats, currency, right-to-left support, and encoding standards.

• Manage and integrate localisation platforms such as Crowdin, Smartling, and other TMS solutions with Heidi’s development and release processes.

• Support multiple file formats (JSON, XML, XLIFF, resource bundles, etc.) and ensure smooth integration with source control systems (e.g. Git).

• Collaborate with engineering, product, design, and QA teams to resolve localisation issues and ensure UI/UX works across languages.

• Conduct functional, linguistic, and UI testing for localised builds, troubleshooting issues like text expansion, truncation, or display errors.

• Build and maintain localisation documentation, style guides, glossaries, and best practices.

• Continuously improve localisation infrastructure for scalability, efficiency, and cost-effectiveness.

What we’ll look for:

• Experience as a localisation engineer or in a related technical role.

• Strong understanding of localisation and internationalisation principles.

• Proficiency in scripting or programming (e.g. Python, JavaScript, or similar) to automate workflows.

• Hands-on experience with localisation platforms such as Crowdin, Smartling, or comparable TMS/CAT tools.

• Familiarity with continuous integration/deployment (CI/CD) and automation of localisation within build pipelines.

• Strong problem-solving skills, with the ability to debug technical and linguistic issues.

• Excellent collaboration and communication skills to work across teams.

• Attention to detail and a commitment to delivering high-quality, global-ready products.

What do we believe in?

Heidi builds for the future of healthcare, not just the next quarter, and our goals are ambitious because the world’s health demands it. We believe in progress built through precision, pace, and ownership.

• Live Forever - Every release moves care forward: measured, safe, and built to last. Data guides us, but patients define the truth that matters.

• Practice Ownership - Decisions follow logic and proof, not hierarchy. Exceptional care demands exceptional standards in our work, our thinking, and our character.

• Small Cuts Heal Faster - Stability earns trust, speed delivers impact. Progress is about learning fast without breaking what people depend on.

• Make others better - Feedback is direct, kindness is constant, and excellence lifts everyone. Our success is measured by collective growth, not individual output.

Our mission is clear: expand the world’s capacity to care, and do it without losing the humanity that makes care worth delivering.

Why you’ll flourish working with us 🚀?

• Flexible work with a hybrid environment

• Additional paid day off for your birthday and wellness days

• 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 the leading healthtech startups in the world

• If you have an impact quickly, the opportunity to fast track your startup career!

Help us reimagine patient care and change the face of healthcare around the world.