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About the Role

You’ll be a hands-on integration engineer owning the build, maintenance, and evolution of fulfilment-critical integrations across NetSuite, Celigo, WMS platforms, and internal systems. This is an integration-heavy developer role with real business impact: when integrations are healthy, fulfilment runs smoothly; when they are not, you will be the person who can diagnose the failure and design a lasting fix. We are open to hiring at a higher level for the right person, given how business-critical this work is.

Responsibilities

Own and improve integration flows connecting our proprietary platform, Celigo, NetSuite, and WMS systems.
Build, test, and deploy integration changes with a focus on reliability, maintainability, and safe rollout.
Develop and support NetSuite integration components, including RESTlets and, where appropriate, SuiteScript that improves integration robustness.
Troubleshoot integration failures end-to-end (data issues, API behaviours, platform configuration, edge cases) and implement fixes that address root causes.
Improve engineering quality across integrations: consistent patterns, clear documentation, and careful handling of retries, idempotency, and partial failures.
Collaborate across time zones with a Systems team primarily based in Australia, aligning on priorities and communicating progress clearly in writing.
Supporting core fulfilment data flows such as: Order-to-fulfilment status synchronisation, Inventory updates and reconciliation between NetSuite and WMS, Shipment confirmations and fulfilment updates across systems.

Requirements

Deep, hands-on iPaaS integration experience (Celigo strongly preferred), and the ability to become productive in Celigo quickly.
Strong understanding of APIs and endpoints, including real-world experience with authentication, payloads, error modes, and rate limits.
Strong working knowledge of NetSuite integrations, including RESTlets.
Proven ability to debug integration issues end-to-end and implement fixes that prevent recurrence.
Experience building and supporting multiple production-grade integrations and can point to examples of complex flows owned (for example multi-system sync, robust error handling, retries, reconciliation, and clear recovery paths).
Build-to-last mindset: care about maintainable code and configuration, clear handoffs, and future-proof design.
Comfortable working in a fast-moving environment where priorities can evolve and ownership is expected.
Experience integrating with WMS platforms and fulfilment or inventory workflows.
Interest in building technology in regulated or healthcare-adjacent contexts.

Skills

iPaaS integration
Celigo
APIs
NetSuite integrations
RESTlets
SuiteScript
WMS platforms
Fulfilment workflows
Inventory workflows

Location

UK
Remote
Hybrid
Old Street

Work Type

Remote
Hybrid

Experience Level

Higher level for the right person

Benefits

Employee options program
Annual development budget
3 days of professional development leave
Hybrid setup with 3 days a week in our Old Street office
Private health insurance through Vitality or opt for a monthly wellness allowance
25 days of holiday
Enhanced parental leave
Work from anywhere 3 weeks out of the year
Vibrant office culture with regular socials, clubs, after-school sport, and seasonal events

About the Company

Eucalyptus is on a mission to make good health last a lifetime, building 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.
Published clinical research shows that their combined clinical and behavioural approach helps patients lose significantly more weight during their treatment with Juniper by four times.
Eucalyptus has experienced 130% YoY revenue growth and a 90% reduction in cash burn, culminating in their $1.15bn acquisition by Hims & Hers in 2026.
Supported over 350k patients living with obesity across 5 markets.
Received selective NICE endorsement to provide services to the NHS.
Tailored offerings to thousands of patients in Australia, the UK, Germany, Japan and Canada.
Euc is also behind a growing family of digital healthcare clinics (Pilot, Kin, Software, Compound) across men’s health and well-being, fertility, skincare, and preventative health.
Goal for the next three years is to support 1 million patients globally to live better for longer.
Building a truly preventive healthcare ecosystem by launching into new conditions, demographics, and geographies.
On the path to becoming the world’s largest international digital healthcare company.
Delivering work that directly shapes patient outcomes and scales evidence-based care across markets.
Offering high ownership, continuous feedback, and dedicated development support.
Collaborating with talented peers to solve complex clinical and operational problems at scale.

Equal Opportunity

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.