Senior Java Software Engineer with proven Java, Spring Boot or Micronaut experience is required to join an early-stage green energy technology start-up building microservices-based SaaS applications for the renewable energy sector. You''ll help design, deliver and enhance a new product offering, working across full-stack scalable distributed systems, Back End services, APIs, test automation, continuous delivery and cloud-native engineering, with Front End UI development experience ideally using React/MUI. This role will suit someone who has worked in a small, scale-up or product-focused SaaS software business and enjoys building resilient, maintainable software at pace. The role is potentially remote with meetups, although candidates who are accessible and can spend some time in the central Cambridge office would be an advantage. Salary £60-85k + Bens + Stock Key skills required for the Senior Java Software EngineerProven experience building and operating Java-based applications in an enterprise environment.Strong experience with Spring Boot or Micronaut, ideally as microservices within a SaaS platform.Full stack engineering experience, with the ability to work across Back End services, APIs and user-facing product features.Frontend development experience, ideally with React and MUI or similar modern UI frameworks/component libraries.Strong understanding of good engineering practices around resilience, scalability and maintainability of distributed systems.Familiarity with ..... full job details .....