Senior Integrations Developer (Netsuite & Celigo) - (Contract), UK

<div class="content-intro"><h3>About Eucalyptus</h3> <p>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.</p> <p>&nbsp;</p> <p>Eucalyptus is now part of Hims &amp; Hers, the global leader in personalised health and wellness.</p> <p>&nbsp;</p> <p>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.<br><br></p> <h3>Our Growth Story:</h3> <ul> <li>Supporting patients living with obesity across our 5 markets</li> <li>Received selective NICE endorsement to provide services to the NHS</li> <li>Tailored our offering to thousands of patients in Australia, the UK, Germany, Japan and Canada.</li> </ul></div><h3>About the role (What you'll be doing)&nbsp;</h3> <p>You’ll be a hands-on integration engineer owning the build, maintenance, and evolution of fulfilment-critical integrations across <strong>NetSuite, Celigo, WMS platforms, and internal systems</strong>. 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.</p> <p>We are open to hiring at a higher level for the right person, given how business-critical this work is.</p> <p><strong>What you'll do</strong></p> <ul> <li><strong>Own and improve integration flows</strong> connecting our proprietary platform, Celigo, NetSuite, and WMS systems.</li> <li><strong>Build, test, and deploy</strong> integration changes with a focus on reliability, maintainability, and safe rollout.</li> <li><strong>Develop and support NetSuite integration components</strong>, including RESTlets and, where appropriate, SuiteScript that improves integration robustness.</li> <li><strong>Troubleshoot integration failures</strong> end-to-end (data issues, API behaviours, platform configuration, edge cases) and implement fixes that address root causes.</li> <li><strong>Improve engineering quality</strong> across integrations: consistent patterns, clear documentation, and careful handling of retries, idempotency, and partial failures.</li> <li>&