Senior Frontend Engineer - Growth Experimentation

Reposted 5 Days Ago
Be an Early Applicant
London, England, GBR
In-Office
Senior level
Healthtech • Software • Biotech • Telehealth
The Role
Own and evolve the frontend web platform, design and run growth experiments to improve retention, engagement, and conversions, collaborate with product and marketing, and mentor teammates to define frontend best practices.
Summary Generated by Built In
About Eucalyptus

We're on a mission to make good health last a lifetime. More than 1 billion people live with obesity worldwide, driving preventable chronic conditions. We're here to build better long-term care.


Eucalyptus is now part of Hims & Hers, the global leader in personalised health and wellness.


Euc is the company behind Juniper, one of the world's largest weight-management programs combining GLP-1 medication with personalised nutrition, movement support, and clinician-led care from prescribers, nurses, health coaches, pharmacists, and dietitians. Our published clinical research shows that our combined clinical and behavioural approach helps patients lose significantly more weight during their treatment with Juniper by four times.

Our Growth Story:
  • 130% YoY revenue growth and a 90% reduction in cash burn - culminating in our $1.15bn acquisition by Hims & Hers in 2026, giving us the platform to take long-term care global
  • Supported over 350k patients living with obesity across our 5 markets
  • Received selective NICE endorsement to provide services to the NHS
  • Tailored our offering to thousands of patients in Australia, the UK, Germany, Japan and Canada.
Own our Frontend Web, run growth experiments, and shape product impact

At Eucalyptus, we’re on a mission to make healthcare simpler, safer, and more accessible. Patients face friction when navigating care, and the Growth squad focuses on building frontend web experiences that directly move key metrics—retention, engagement, and conversions—while shaping the overall patient experience.

One of the key initiatives you’ll contribute to is experimentation across the frontend platform, designing and testing features that influence how patients engage with our services. This is a chance to drive measurable impact and shape best practices for the platform used across the business.

Our stack: React, React Native, GraphQL Federation, Go, TypeScript, gRPC, Pub/Sub, Kubernetes, GCP.

The impact you will have
  • Take ownership of the frontend web platform, ensuring scalable, polished, high-performance experiences

  • Design and deliver growth-focused experiments that improve retention, engagement, and conversions

  • Collaborate closely with product and marketing to translate insights into actionable features

  • Influence frontend best practices across the team and mentor teammates

Who succeeds here

You’ll likely succeed if you:

  • Have strong React & TypeScript experience, with full ownership of web products

  • Are experienced working on frontend platforms or product-facing web apps

  • Have a commercial mindset, understanding how features and experiments impact business metrics

  • Thrive in autonomous, senior-level roles, able to take ownership end-to-end

You don’t need to tick every box — if this role excites you, we’d still love to hear from you.

Nice to haves
  • Growth-focused engineering experience

  • Experience with GraphQL

This is a senior, high-autonomy role where engineers get to own the frontend experience, define best practices, and directly influence growth metrics. You’ll work in a team that values experimentation, collaboration, and measurable impact, shaping features that truly move the needle for patients and the business.

If driving growth through product engineering and shaping high-impact patient experiences sounds exciting, we’d love to hear from you.

 

At Eucalyptus, we value individuals from all backgrounds, experiences, and perspectives, and we embrace the unique qualities each person brings. When you apply, please let us know of any reasonable adjustments you may need during the interview process. We use AI-assisted tools across our business to help our teams work more efficiently, including within our recruitment process. These tools support our team — all hiring decisions are made by real people, and every application is reviewed by a member of our recruitment team.

Skills Required

  • Strong React and TypeScript experience
  • Experience owning frontend platforms or product-facing web apps
  • Commercial mindset — understand how features and experiments impact business metrics
  • Ability to work autonomously in senior-level roles and take end-to-end ownership
  • Growth-focused engineering experience
  • Experience with GraphQL
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The Company
HQ: Sydney, New South Wales
479 Employees
Year Founded: 2019

What We Do

At Eucalyptus, we run a trusted group of digital healthcare clinics on our telehealth platform including Pilot (men’s health), Kin (fertility), Software (dermatology) and Juniper (weight loss and menopause). Our mission is to bring high-touch, high-quality healthcare to patients around the world by empowering practitioners with technology. Since 2019, we’ve facilitated over one million consultations across Australia, the UK and Germany. With every consult, we’re breaking down boundaries to better health by providing better access to care, stigma-free experiences, and continuous support. Our commitment to providing better patient experiences is matched by our stellar record of patient safety. To learn more about Eucalyptus, visit our website

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