Are you an SAP engineer who has built software that shipped to real customers — not just customised a single company's system? At Basis Technologies, we're looking for a Senior SAP UI5 Developer who thinks in products, not projects. THE OPPORTUNITY Basis Technologies powers intelligent change management for SAP-run enterprises worldwide. Our flagship product, ActiveControl, is used by Kimberly-Clark, Honda, Booking.com and others to govern how technical change moves through their SAP landscapes. You wouldn't be customising SAP. You'd be writing software that SAP-run businesses depend on to keep their production systems stable. This is a builder's role. Clean Core is a first-class principle here — not a constraint we're retrofitting around, but the foundation we build on. UI5 is the primary front-end layer, and OData services and REST APIs are the standard integration pattern. ABAP still matters — this is a deep SAP platform product — but the mindset is product engineering, not enterprise customisation. If that distinction resonates with you, keep reading. WHAT YOU'LL OWN UI5 Development & Clean Core Design and deliver UI5 components that serve enterprise customers with complex, varied SAP landscapes Own your code end-to-end — from design to ABAP Unit tests to deployment, following Agile principles Lead code reviews and be an active voice on how the team raises its Clean Core standards Technical Collaboration Work with abapGit as a genuine source control workflow — not a last-resort backup mechanism Collaborate directly with the engineering team on architecture decisions — senior engineers have real influence here Partner with Product and QA to ensure features are tested, documented, and production-ready Platform & Ecosystem Awareness Understand the broader SAP platform well enough to anticipate how changes affect customer landscapes Stay ahead of SAP's Clean Core and BTP roadmap to inform technical decisions early WHAT WE'RE LOOKING FOR Strong foundation in: SAP UI5 — controls, data binding, ODataModel and JSONModel, component architecture OData services and REST APIs as standard integration patterns ABAP — object-oriented, enhancement frameworks, and a solid grasp of the underlying platform ABAP Unit testing and a genuine commitment to tested, production-ready code abapGit and source control as a standard, disciplined workflow Agile delivery in a collaborative, cross-functional team setting Bonus points for: JavaScript or TypeScript development outside of UI5 SAP BTP — particularly as a deployment or extension target Experience advocating for or implementing Clean Core in a real, complex codebase WHY BASIS TECHNOLOGIES For over 25 years we've helped global leaders like Kimberly-Clark, 3M, and Vistaprint navigate complex SAP change. We're scaling from 130 employees with purpose — and we've been named one of the UK's Best Workplaces by Great Place to Work three years running. The engineering team is small enough that your work is visible, your opinions matter, and there's no bureaucracy between you and the people making product decisions. The culture is one where people stay — several of the engineers you'd work with have been here for years. WHAT WE OFFER FINANCIAL Competitive base salary and annual company bonus Company pension via Royal London HEALTH & PROTECTION Private Medical Insurance (AXA) — individual cover fully paid by Basis Health Cash Plan — Level 4 with Simply Health (dental, optical, physiotherapy) Group Life Assurance and Group Income Protection Employee Assistance Programme — free confidential support TIME & FLEXIBILITY 25 days holiday per year, rising by 1 day per year of service up to 30 days Hybrid working from our Bracknell office Global Flexibility — work abroad for up to one month per year Enhanced Parental Leave 1 paid Volunteer Day per year GROWTH & COMMUNITY £1,000 annual Learning & Development budget (from month three) 10 qualified Mental Health First Aiders across the company Monthly Shared Knowledge Sessions STEM Ambassador Programme partnership Employee referral bonus programme READY TO APPLY? If this sounds like the role where you'll do the best work of your career, we want to hear from you. Apply via our careers page or get in touch directly — we review applications on a rolling basis.