At Holland & Barrett, our mission is to make health and wellness a way of life for everyone — and technology is key to achieving that goal. As we evolve into a truly omni-channel business, we're investing in the innovation and digital capabilities that will deliver speed, convenience, and personalisation to millions of customers worldwide. We build with purpose. We're collaborative, cloud-first, and committed to delivering meaningful value at pace. We prefer building smart, tailored solutions over buying generic ones — and we integrate automation and testing into every part of our tech stack, from infrastructure to software to data. As a Senior Backend Engineer, you'll join our Online Customer Experience (OCX) vertical — the team behind our e-commerce platforms across web and mobile. With a large-scale technical transformation nearing completion, we're entering a new and exciting phase: building next-generation digital propositions that align with our mission to be the go-to wellness brand. This role will see you lead by example — owning software design across key functional areas, mentoring engineers, and delivering high-quality, secure, and scalable systems that enhance the customer experience. What You'll Be Doing • Take ownership of designing and delivering backend services, operating independently without technical oversight • Lead by example to consistently ship high-quality, cross-functional software • Collaborate with cross-functional teams to ensure projects are delivered on time and meet expectations • Bring fresh thinking and share new techniques across disciplines including product, QA, and UX • Support and mentor your engineering squad, helping to grow technical capabilities and confidence • Evaluate the impact of new information and changing priorities, adapting plans accordingly • Communicate complex concepts clearly to both technical and non-technical stakeholders • Understand how your team's work connects to the wider business strategy • Keep the customer at the heart of what you do — building features and systems that serve their needs • Take responsibility for security and compliance, planning proactively for operational impact Essential Skills • Fluent in Java (17+) and frameworks like Spring Boot, Quarkus, or Micronaut • Deep understanding of RESTful architecture and HTTP • Strong knowledge of asynchronous programming techniques in Java • Proficient in SQL, with experience in RDBMS like Postgres or Oracle • Experience working with Docker and docker-compose • Familiarity with AWS, particularly services like S3, Aurora, and ElasticCache • Proficient with CI/CD tools such as GitLab, GitHub Actions, or CircleCI • Strong testing capabilities using JUnit, RestAssured, or similar frameworks • Proactive with monitoring, observability, and system health Desirable Skills • Exposure to monitoring platforms like Datadog, Grafana, Prometheus, or PagerDuty • Familiarity with Python scripting • Experience with Kubernetes and deployment tools such as Helm Why Join H&B Tech? • Help define the future of digital health & wellness in a purpose-led organisation • Work in an agile, cloud-native tech environment with a clear vision and mission • Be part of a collaborative, people-first team that encourages continuous learning • Enjoy a flexible working culture, competitive benefits, and the opportunity to make a real impact Join us and shape the future of wellness through technology. Apply today and be part of something bigger. • Pension company contribution = 3% • Incentive scheme up to 10% of annual salary, based on company performance. • Your wellbeing is paramount so you can get away and take 33 Days Holiday per year. • Private Medical Care (Self after 1 year) • Learning and Development opportunity with Holland & Barrett is a great base for career development long term. • Career progression. • Refer and Earn Scheme - as we're growing you can earn money by referring people to join us from your network. • Epic Extras gives you access to exclusive benefits, free advice and savings from a range of retailers and providers. • Stay healthy with Discounted Products - from day one you'll get a 25% discount (on top of other promotions) when you shop at H&B on anything that you buy. • We all need a little help sometimes, so weoffer Free 24/7 Confidential Advice & Colleague Welfare. • Mental Health First Aiders - we have lots of qualified Mental Health First Aiders because its all about your health & wellbeing. • Stay active in the Onsite Gym at our Nuneaton Hub! • We have colleague Reward and Recognition Schemes, so your hard work and loyalty won't go unnoticed. • And many more! We're passionate about helping every colleague thrive across all dimensions of wellbeing, and we're committed to having a diverse and inclusive workplace. In line with our EPIC values (Expertise, Pioneering, Inclusive, Caring), we embrace and actively celebrate all our colleagues' unique and varying experiences, backgrounds, identities and cultures - I am me, we are H&B. Holland & Barrett does not accept unsolicited resumes from search firms/recruiters. Please do not forward resumes to our job alias, employees, or any other company location. Holland & Barrett is not and will not be responsible for any fees if a candidate submitted by a search firm/recruiter unless otherwise agreed with respect to specific open position(s).