Lead Java Developer

Mastek; Metropolitan Borough of Solihull; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in the UK seeks a skilled Lead Java Developer to create and implement solutions for biometric products. The role involves supporting live systems and diagnosing incidents in a collaborative team. Successful candidates will have 8-10 years of experience in large-scale Java projects, with a strong understanding of Java, Spring, and related technologies. This position is part of a purpose-driven organization, supporting diverse and impactful projects.

Qualifications

• 8-10 years of hands-on experience with large-scale Spring-based Java projects.
• Experience in supporting live systems and diagnosing incidents.
• Strong analytical and decision-making abilities.

Responsibilities

• Develop and implement solutions for biometric products.
• Support live systems and diagnose incidents.
• Collaborate with team for high-quality Java code.

Skills

Java 17+

Spring Boot

Spring Data JPA

Microservices

SQL Database (PostgreSQL)

REST and SOAP Web Services

Docker

TDD

Agile (Scrum)

Continuous Integration (Maven, GIT, Jenkins)

Tools

AWS Cloud hosting

Postgres/Aurora

Junit

ActiveMQ

Grafana

Job description

Location: Working 2 days a week from Solihull with occasional travel to Croydon based on business needs

Security Clearance: SC Cleared, NPPV3 Must

About the Role:

We are seeking a highly skilled Lead Java Developer to join our team and work on a large-scale public sector program. This unique development opportunity involves creating and implementing solutions for our portfolio of biometric products, supporting live systems, and diagnosing incidents. You will be part of a collaborative team that prides itself on engineering the best possible Java code.

Key Responsibilities:

• Develop and implement solutions for biometric products.
• Support live systems and diagnose incidents.
• Collaborate with the team to ensure high-quality Java code.

Essential Skills and Experience:

• Proficiency in Java 17+, Spring Boot, Spring Data JPA, Spring Integration, Spring Batch, Microservices, Quartz, SQL Database (PostgreSQL), JPA (Hibernate), REST and SOAP Web Services, Messaging service (ActiveMQ), Maven, Junit, Jenkins, AWS Cloud hosting and its components, Postgres/Aurora, Bootstrap, Docker, TDD, Agile (Scrum)
• Public sector experience.
• 8-10 years of hands‑on experience with large-scale Spring‑based Java projects.
• Experience supporting live systems and diagnosing incidents.
• Experience in large-scale integration projects involving microservices, messaging, web services, and distributed systems.
• Experience with web services (SOAP and RESTful).
• Experience with containerization (Docker).
• Experience with testing frameworks like JUnit, Mockito, Powermock, JMock, DBUnit, TestContainers.
• Experience connecting processes across several systems with message brokers like ActiveMQ.
• Experience with Continuous Integration methodologies – Maven, GIT, Jenkins, SonarQube, and Stash Repository.
• Experience working with a suite of Atlassian products.
• Experience working with open‑source database management systems like PostgreSQL.
• Experience working with AWS services (EC2, SQS, RDS, DynamoDB, S3, Route53, KMS, Cloudwatch).
• Monitoring using Grafana.
• Strong analytical and decision‑making abilities.

Desired Skills and Experience:

• Experience in Angular and Node JS.
• Experience in Jaspersoft reporting tool.
• DBA experience in performance tuning SQL queries and Postgres/Aurora DB config.
• Experience working with Spring Cloud, Spring Batch, and Spring Integration.
• Experience working with Activiti BPMN.
• Experience working with Postfix.
• Experience in AWS DevOps.
• Ability to create a cohesive working environment and build high‑performing teams.
• Hands‑on Java development experience working on digital or technology projects at a leading consultancy, agency, or government organization.
• AWS or Azure certification, or willingness to attain the certification.
• Self‑starter, comfortable working in both process‑driven and ambiguous environments.
• Experience and passion for working within Central Government and other sectors.
• Proven capability of working successfully with senior client stakeholders and end‑users, quickly building successful relationships, and establishing credibility.
• Passion for digital and technology, with the drive and determination to continually learn new things and develop yourself and others.
• Strong written, presentation, and verbal communication skills, with a high degree of attention to detail.
• Strong organizational skills, with the ability to work independently in a highly collaborative, team‑based environment.
• The right to live and work in the UK, be a British national (ideally not dual nationality) and have lived in the UK to obtain SC clearance.

What We Are Looking For:

• Ability to manage and build relationships with teams, relevant stakeholders, and third‑party sub‑contractors utilizing effective and appropriate governance mechanisms.
• Knowledge of CI/CD tools and agile methodologies, and hands‑on delivery experience.
• Drive outcomes and business value, coordinate activities across teams to establish pace of delivery.

Why Join Us?

• We’re a purpose‑driven organisation committed to creating positive impact and championing inclusion.
• You’ll join a culture that encourages innovation, collaboration, and continuous growth.
• We celebrate difference and believe diverse perspectives lead to stronger solutions.
• Even if you don’t meet every requirement, we encourage you to apply — great talent comes from a variety of backgrounds.
• Your lived experience, unique strengths, and personal story matter — they help us design better outcomes for the communities we serve.
• We celebrate diversity of experience, knowledge, backgrounds, and perspectives, and believe these differences enable us to create meaningful impact. We are proud to be an equal opportunity employer and are committed to fairness and inclusion for all, regardless of sex, race, religion or belief, ethnic or national origin, disability, age, citizenship, marital or partnership status, sexual orientation, gender identity, pregnancy or related conditions, or any other protected characteristic. If you require any reasonable adjustments or additional support during the recruitment process, please let us know.

If you are a passionate Lead Java Developer with the required skills and experience, we would love to hear from you. Apply now to join our team and contribute to exciting and impactful projects.

Ready to Make an Impact?

• 📩 Apply now and help us build a more inclusive, digitally empowered future.