Senior Software Engineer, UK

About Euc

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We’re making good health last a lifetime

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

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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.

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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.

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

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• 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.

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What’s next?

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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.

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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.

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About the role (What you’ll be doing)

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This role is part of our growing UK engineering team, working in close partnership with our platform and product teams in Australia. While our core architecture and feature development are led from 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. This isn’t about quick wins or surface-level optimisation; it’s thoughtful, insight-led work that helps improve healthcare access and impact where it matters most.
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• 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

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About you (Who you are) 

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• 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 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’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.

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Nice to haves

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

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So, why join Eucalyptus?

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• ‍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
  • 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
  • A fun office with regular socials including after-school sport, clubs, cycle kick-offs, and seasonal parties. We had our winter social in Paris last year! 🇫🇷
  • 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

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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.