Salary: £30,000 - 55,000 per year Requirements: Java Core (version 8) Good knowledge of Spring Boot and Spring Framework Experience with Hibernate Proven experience in developing RESTful services over HTTPS Knowledge of microservice architecture Understanding of distributed systems Familiarity with software design patterns Experience with Agile development processes Knowledge of CI/CD delivery techniques Proficient in source code management using Git Experience with issue tracking systems such as Jira Proficiency in UML/SysML using Enterprise Architect or similar tools Ability to self-motivate and work effectively in a team Ability to foster innovation in oneself and others Strong communication skills with internal and external stakeholders Responsibilities: Contribute to the full software development lifecycle, including design, development, testing, and deployment Design software solutions using UML/SysML and contribute to technical architecture within a microservices environment Develop high-quality Java applications using Spring Boot and related technologies Implement and maintain RESTful web services over HTTPS in distributed systems Write and maintain automated tests, ensuring quality and reliability from the outset Participate in Agile ceremonies including sprint planning, estimation, reviews, and retrospectives Collaborate closely with team members and stakeholders to design, implement, and test new features Contribute to CI/CD pipelines, source control (Git), and issue tracking tools such as Jira Ensure compliance awareness and act with integrity to support standards and sustainable growth Technologies: Architect CI/CD Git Hibernate Support JIRA Java Marketing Spring Spring Boot UML Web microservices REST More: We are Certain Advantage, hiring for a Software Engineer position in Portsmouth on an initial 12-month contract. This role requires you to be onsite three days a week. We go the extra mile to find the best people for the job and offer a supportive environment where you can make an impact and grow your career. If you are looking for an opportunity to work across various sectors including Finance, Marketing, IT, and Engineering, we encourage you to apply and explore your options with us. last updated 5 week of 2026