Senior Software Engineer - Fulfilment

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.

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.

• 130% YoY revenue growth and a 90% reduction in cash burn, with $100M+ raised from investors including BOND, NewView, Blackbird and Airtree.
• 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 thousand of patients in Germany and Japan

At Eucalyptus, we’re on a mission to make healthcare simpler, safer, and more accessible. Behind every patient interaction is a platform that must operate reliably and at scale — connecting patients to care efficiently while enabling the business to make fast, data-informed decisions.

The Fulfilment squad focuses on the systems that power these critical workflows. From distributed services to fullstack solutions, this team designs and evolves the platform that keeps our operations running smoothly as we grow.

Key initiatives include scaling the core platform, improving system reliability, and building integrations across services to support expanding operations. This is a role for engineers who enjoy solving complex system challenges while delivering solutions that have real operational impact.

• Design, build, and maintain distributed microservices using Golang or Node.js, including gRPC and Protobuf integrations

• Contribute across the stack where needed, supporting frontend interfaces and internal tooling

• Participate in architecture and system design decisions to ensure scalability, reliability, and maintainability

• Collaborate with product, operations, and strategy partners to translate business needs into technical solutions

• Drive best practices in coding, testing, and deployment across the squad

• Mentor engineers and contribute to a culture of knowledge sharing

You’ll likely succeed if you:

• Bring strong backend development experience, preferably with Golang or Node.js, and knowledge of distributed systems

• Are comfortable contributing across the stack, with familiarity in React or similar frontend technologies

• Have experience building robust, scalable, and maintainable systems

• Thrive in fast-paced environments and collaborate effectively across multiple teams

• Enjoy solving complex problems and taking ownership of meaningful technical challenges

• Have experience working with cloud-native infrastructure

• Are familiar with GraphQL, gRPC, Protobufs, or event-driven architectures

• Understand operational workflows, logistics systems, or similarly complex business processes

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

This is a senior, high-autonomy role where engineers shape the platform that underpins how care is delivered. You’ll work on complex, high-scale systems, influence architectural direction, and help define engineering practices as the organisation grows — all within a collaborative team focused on real-world impact.

If building resilient systems that power healthcare delivery sounds exciting, we’d love to hear from you.