At a Glance
- Tasks: Lead the technical direction and architecture of our core SaaS platform using Java.
- Company: Join a forward-thinking tech company with a focus on innovation and collaboration.
- Benefits: Enjoy a competitive salary, hybrid work options, and opportunities for professional growth.
- Other info: Dynamic role with a focus on continuous improvement and operational excellence.
- Why this job: Make a real impact by shaping the future of our platform and mentoring fellow engineers.
- Qualifications: Extensive Java experience and strong leadership skills are essential.
The predicted salary is between 70000 - 90000 £ per year.
Principal Java Engineer
Department
Tech
Employment Type
Permanent - Full Time
Location
- Wallingford, UK - Hybrid
- Description
Mission
As Principal Java Engineer, you will provide technical leadership for GTI's core Saa S platform.
Reporting directly to the CTO, you will own the technical direction, architecture and engineering standards of the platform without direct line management responsibility.
You will work closely with Product, Data, Operations, Dev Ops and QA teams to deliver secure, resilient and scalable solutions while mentoring engineers through technical leadership and best practice.
Outcomes
Platform architecture is scalable, resilient, secure and supports current and future business needs
- Own the application architecture and technical direction across multiple products and services.
- Design, implement and review high-quality Java and full-stack solutions, APIs and integrations.
- Lead performance optimisation, scalability and resilience initiatives.
- Drive security best practices, vulnerability remediation and secure software development lifecycle (SDLC) practices.
- Work closely with Data, Operations, Dev Ops and QA teams to ensure architectural alignment and operational excellence.
Product roadmap is delivered successfully through strong technical leadership and effective engineering execution
- Provide technical leadership across multiple Agile development teams.
- Translate business and product requirements into robust technical solutions.
- Support engineering teams in the successful delivery of roadmap commitments.
- Facilitate collaboration across teams to remove technical blockers and mitigate delivery risks.
- Mentor and guide developers to improve capability, quality and delivery outcomes.
Engineering standards, architecture principles and best practices are consistently applied across development teams
- Define, maintain and champion engineering standards, architectural principles and development best practices.
- Conduct design and code reviews to ensure quality, maintainability and consistency.
- Author new development processes and continuously improve existing engineering practices.
- Promote secure, scalable and maintainable software design across all teams.
- Support and mentor team members to drive technical excellence and continuous improvement.
- Production systems are reliable, observable and operationally excellent
- Lead root cause analysis and resolution of complex production issues.
- Drive improvements in system observability, monitoring and operational performance.
- Ensure applications are designed and operated to meet reliability, availability and performance targets.
- Partner with Operations, Dev Ops and QA teams to maintain production stability and service quality.
- Embed a culture of operational excellence, continuous improvement and proactive issue prevention.
Technologies you will be using
- Java 21 (LTS)
- Spring Framework 6 / Spring Boot 3.5
- Hibernate ORM 6.6+, JPA
- Apache Tomcat 11, Intelli J IDEA
- AI Tooling (Claude, Codex, Gitlab Duo, etc)
- REST APIs, Open API, Microservices, Event-driven architecture (Rabbit MQ)
- Containers, Docker, AWS, Linux
- CI/CD with Git Lab Pipelines & Jenkins
- Observability: logging, metrics and monitoring
- My SQL, Apache Solr
- Front-end UI (e. g. Angular)
Person Specification
- Strategic and systems-thinking mindset
- Excellent communication and stakeholder management skills
- Ability to influence through technical leadership rather than line management
- Proactive, pragmatic and outcome-focused
- Strong mentoring and collaborative working style
- High standards of engineering excellence and continuous improvement
- Trusted technical advisor
- Excellent attention to detail
Work Experience, Knowledge & Skills
- Degree in Computer Science (or equivalent experience)
- Extensive Java software engineering experience with significant experience in technical leadership
- Expert knowledge of Java, JVM performance and modern language features
- Deep experience with Spring Boot, Hibernate/JPA and enterprise application architecture
- Strong understanding of distributed systems, scalability, resilience and performance tuning
- Experience with cloud-native applications, Docker, Kubernetes and CI/CD
- Strong knowledge of application security, OWASP principles and secure development practices
- Knowledge of a modern front-end node-based framework
- Other Information
- Permanent role – 37.5 hours per week. Monday to Friday 9am-5:30pm.
- 3-month probationary period.
Candidates applying for roles at GTI will be subject to background screening.
You can find out more about our background screening and the recruitment of ex-offenders by reading our policies.
If you would like to speak to a member of our team to find out more information about this vacancy or you have any questions, please get in touch - recruitment@groupgti. com.
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Principal Java Engineer in Wallingford employer: Group GTI
Group GTI is an exceptional employer that fosters a dynamic and innovative work culture in Wallingford, UK. With a strong emphasis on employee growth and collaboration, you will have the opportunity to shape cutting-edge product experiences while enjoying the flexibility of a hybrid work model. Join us to be part of a forward-thinking team dedicated to enhancing user engagement and performance for Gen Z, all within a supportive environment that values your contributions.
