Senior Java Software Engineer

Salary: £60,000 - 68,000 per year

Requirements:

• Strong commercial experience developing applications using Java and Spring Boot.
• Experience designing and delivering complex software solutions.
• Strong knowledge of relational databases, ideally PostgreSQL.
• Experience working within Agile software development teams.
• Passion for writing clean, maintainable and well-tested code.
• Experience mentoring developers through code reviews and technical guidance.
• Strong understanding of software performance, scalability and engineering best practices.
• Excellent communication and stakeholder engagement skills.
• Experience with AWS cloud technologies.
• Exposure to React and TypeScript.

Responsibilities:

• Designing and developing complex Java applications using modern engineering practices.
• Leading the delivery of key software features from design through to implementation.
• Producing technical designs and documentation to support development.
• Reviewing code and maintaining high engineering standards across the team.
• Mentoring and supporting junior and mid-level developers.
• Collaborating with Product Managers, Architects and fellow Engineers to deliver scalable software solutions.
• Identifying opportunities to improve performance, security, scalability and reliability.
• Contributing to CI/CD processes and engineering best practices.
• Exploring modern tooling, automation and AI technologies to improve software delivery.

Technologies:

• AI
• AWS
• CI/CD
• Cloud
• Support
• Java
• PostgreSQL
• React
• Security
• Spring
• Spring Boot
• TypeScript

More:

We are an established technology organisation in Cardiff offering a Senior Java Engineer role within our growing software engineering team. This is a hybrid working position with a salary of up to £68,000 plus a 20% performance-related bonus, private healthcare, 25 days annual leave plus bank holidays, and an additional holiday purchase scheme. We offer the opportunity to work in an Agile environment, remain hands-on across the development lifecycle, influence technical direction, mentor others, and contribute to modern, scalable software solutions.

last updated 30 week of 2026