Senior Software Engineer — High-Growth Health Scaleup

Eucalyptus; London; On-site; GBP 60,000 - 100,000; Full time

Job summary

Eucalyptus seeks a Senior Software Engineer for its fast-growing UK team. In this role, you'll run experiments to drive growth in a local market, leveraging a strong tech stack including React and Node.js. Join us to make impactful changes in digital health and be part of an innovative company on the rise.

Benefits

Employee options program

Monthly wellness allowance

Personal development budget and additional leave

25 days holiday plus bank holidays

Regular socials and fun office environment

Qualifications

• 3-5 years of experience as a software engineer at a startup or software company.
• Experience in iterative, data-driven environments.

Responsibilities

• Run data-driven growth experiments to optimize the market’s conversion funnel.
• Extend and refine the existing platform for UK-specific user journeys.

Skills

React

TypeScript

Node.js

GraphQL

Data-driven decision making

Job description

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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, supported by our multidisciplinary care team of prescribers, health coaches, dietitians, nurses and pharmacists.

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 will join the first UK specific engineering squad to run growth experiments in a hyper-localised environment. Our broader engineering team is based in AU who manage our platform architecture and new feature releases however this team will focus on optimising growth for the UK market while leveraging the same platform. By localising our approach, we believe we can improve key conversion metrics for our products.

• Run data-driven growth experiments to optimise the market’s conversion funnel.
• Extend and refine the existing platform to improve UK-specific customer journeys.
• Work in small, fast-paced iterative cycles, continuously testing and learning.
• Leverage insights to improve retention and repeat orders in the UK market.
• Ensure seamless front-end experiences across key conversion touchpoints.
  
  
  

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 3-5 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, estimate timelines and consistently delivering high-quality work.
• Excellent written and verbal communication skills.
• You are curious about how things work and have innate ability to problem solve - this is crucial as you won't always have the information you need to move 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 - We build in the open together, which helps us learn and iterate more quickly so we can deliver high quality outcomes faster than anyone else. Helping impact patients lives for the better from the moment you join Euc.
• You’ll be supported to accelerate your career - Regular feedback alongside our bi-annual performance reviews, a professional development budget & leave help ensure you have the support you need to level up. We’re committed to helping every Eucalypt reach their full potential.
• You’ll work with others who are incredibly passionate about what they do - Our talent bar is high and our work ethic is strong. You’ll get to stretch yourself everyday, be given autonomy to tackle interesting problems, and work amongst people who care deeply about our patients.
• We also offer a range of benefits including
• Your own stake in the business with our employee options program
• 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
• A fun office with regular socials including after school sport, clubs, cycle kick offs and seasonal parties
• 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
  
  

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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Health and Human Services

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