Back to jobs

Senior Software Engineer, UK

UK - HQ - London

About Euc

We’re making good health last a lifetime

More than 1 billion people globally live with obesity, a major leading indicator of many preventable chronic diseases such as diabetes and heart disease.

Eucalyptus is the company behind Juniper, one of the world’s largest weight management programs combining GLP-1 medication with a tailored nutrition and exercise programme for women, supported by our multidisciplinary care team of prescribers, health coaches, dietitians, nurses and pharmacists. More recently, we have launched Compound, our men’s health brand dedicated to proactive, personalised healthcare solutions. Together with our other brands (Kin, Pilot, and Software), Juniper and Compound form part of our broader mission to solve the world’s biggest healthcare challenges by combining clinical care, science, and technology.

Our published clinical research demonstrates that our combined approach to weight management and lifestyle change means that our patients are 4x as likely to lose significant weight through their course of treatment with Juniper.

Since launching, we’ve grown fast to support millions of patients. In 2024 alone…

  • In the UK we quadrupled the size of our business, received selective NICE endorsement for our holistic approach to obesity management, and grew our team from 45 to 165.
  • Globally, we grew revenue by >120% YoY, while reducing cash burned by 90% YoY, with over $100M USD raised from global investors such as BOND, NewView, Blackbird and Airtree - early backers of companies like Canva, Stripe and Airbnb.

What’s next?

In 2025, we are charting the path to support hundreds of thousands of patients while launching into new conditions, demographics, and geographies as we move towards our vision of creating a preventive healthcare ecosystem.

We’re going to build the world’s largest international digital healthcare company. This will be a challenging task, but it will be very rewarding and possibly the adventure of a lifetime, working with some of the best operators you will ever encounter. If that gets you excited, let’s talk.

About the role (What you’ll be doing)

This role is part of our growing UK engineering team, working in close partnership with our platform and product teams in Australia. The UK team is focused on locally prioritised initiatives that respond to patient needs and market dynamics. Being embedded in the UK allows us to stay close to the challenges and opportunities unique to this market — enabling us to refine and extend the platform in ways that drive meaningful, sustained outcomes.

As part of this team, you’ll work on complex workflows that sit at the very core of how our patients access care. These workflows require creativity, experimentation, and structured problem-solving—you’ll balance building robust, scalable systems with tailoring local solutions that can flex to new regulations, clinical protocols, and user behaviours. 

You’ll also spend significant time working cross-functionally with teams outside of tech — including growth, marketing, and operations. Success in this role means being able to translate complex technical concepts into clear, non-technical language so that cross-functional partners can engage, contribute, and move quickly. Your ability to distill ideas will enable smoother collaboration, faster iteration, and better patient outcomes.

Here are some examples of recent UK team projects: 

  • We developed a powerful patient segmentation model that classifies individuals into risk categories from their questionnaire data, enabling prescribers to deliver more precise and timely interventions to those who need it most.
  • Right now, we’re focused on transforming our onboarding system so it can handle multiple flows and questionnaires, expanding our reach and making it possible to connect with more patients than ever before.

Expect to:

  • Run structured, data-informed experiments to improve the UK market’s conversion funnel
  • Extend the core platform to better serve UK-specific customer journeys
  • Prioritise initiatives that create real business impact, not just vanity metrics
  • Improve retention and repeat order rates through localised product improvements
  • Deliver polished, seamless front-end experiences across high-leverage touchpoints
  • Collaborate with Australian product teams to co-develop scalable global solutions, while advocating for UK market needs
  • Partner closely with non-technical teams to align on strategy, translate engineering work into actionable insights, and accelerate delivery

This is not a role for surface-level optimisation — it’s about creative, insight-led engineering that makes healthcare simpler, safer, and more accessible.

About you (Who you are)

  • Strong React & TypeScript experience and proficiency in Node.js with GraphQL.
  • Experience working in highly iterative, data-driven teams.
  • Understanding of conversion funnel optimisation in a digital product.
  • At least 6+ years of experience in a similar role at other startups or software companies under your belt.
  • Experience building web products with our tech stack.
  • Proven record of successfully breaking down projects, estimating timelines and consistently delivering high-quality work.
  • Excellent written and verbal communication skills, with the ability to clearly explain technical concepts to non-technical audiences.
  • You’re naturally curious and enjoy understanding how things work. Your problem-solving mindset is key here — you’ll have the autonomy to take ownership of challenges and determine the best path forward.

Nice to haves:

  • Exposure to Go.
  • Familiarity with data visualisation tools like Metabase or Tableau.
  • Experience in growth-focused roles at startups.

So, why join Eucalyptus?

  • Make real impact, fast – You’ll see your work influencing patient journeys immediately, from improving onboarding to refining prescription workflows.
  • Collaborate globally – You’ll work hand-in-hand with talented colleagues in both London and Sydney, shaping solutions that scale internationally.
  • Stretch your creativity – This role is full of open-ended challenges that demand inventive problem-solving and critical thinking.
  • Cross-functional influence – You won’t just code in a silo. You’ll play a vital role in shaping how engineering interacts with growth, marketing, operations, and care teams.
  • Accelerate your career – Regular feedback, bi-annual reviews, and a personal development budget to ensure you’re growing as quickly as we are.
  • Work with passionate peers – Our talent bar is high, our mission is ambitious, and our culture is supportive.

We also offer a range of benefits including:

  • Your own stake in the business with our employee options program
  • Newly opened HQ in vibrant Old Street, designed for focus and collaboration
  • A flexible hybrid setup: 3 days a week in our Old Street office
  • A monthly wellness allowance, for you to spend on whatever wellness means to you
  • A yearly personal development budget and 3 extra days of leave to continuously up-skill yourself
  • 25 days holiday + bank holidays with an enhanced parental leave policy
  • Work from anywhere policy 3 weeks per year
  • A fun office with regular socials including after-school sport, clubs, cycle kick-offs, and seasonal parties (last winter we celebrated in Paris! 🇫🇷)
  • Your own MacBook and more!

Want to hear more about what it’s like to work at Eucalyptus? Hear from our team here or check us out on Instagram @eucalyptus.health

 

Create a Job Alert

Interested in building your career at Careers at Eucalyptus? Get future opportunities sent straight to your email.

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Cover Letter

Accepted file types: pdf, doc, docx, txt, rtf


Select...
Select...

Please feel free to add some context to justify differences if different to your current salary package.

 
Select...
Select...
Select...
Select...

Voluntary Self-identification

This voluntary self-identification form contains questions that help us comply with our legal obligations, where applicable, and assists us with our voluntary diversity efforts. Your responses will be kept for future applications and you can change them at any time.

Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Careers at Eucalyptus’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.