Senior Java Software Engineer

Role: Senior Java Engineer (Cloud-Native)

Job Type: Permanent

Location: United Kingdom

Working Hours: 40 hours per week (Full-time)

Are you looking to design and deliver high-performance, cloud-native Java solutions within a regulated enterprise environment?

We have an exciting opportunity for you - Senior Java Engineer!

Careers at TCS: It means more

TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

• Lead the development of resilient, scalable microservices for mission-critical banking platforms.
• Work with modern technologies across Java, cloud, and event-driven architectures.
• Drive engineering excellence through best practices, automation, and innovation.

The Role

As a Senior Java Engineer, you will be responsible for designing, building, and delivering secure, scalable microservices using Java and Spring frameworks within a regulated banking environment. You will take ownership of solution design, development, and delivery across the full software lifecycle, ensuring strong performance, resilience, and security. You will collaborate with cross-functional teams to deliver high-quality solutions and continuously improve engineering standards.

Your responsibilities:

• Design and develop cloud-native microservices using Java (17/21) with Spring Boot and Spring Cloud.
• Define architecture and integration patterns for distributed systems, ensuring resilience and scalability.
• Develop secure REST APIs and event-driven services aligned with enterprise standards.
• Collaborate with architects, product owners, QA, and DevOps teams to deliver solutions in Agile environments.
• Drive engineering excellence through TDD/BDD practices, automated testing, and code reviews.
• Design and optimise data models using SQL, JPA/Hibernate, and performance tuning techniques.
• Build and manage API contracts using OpenAPI/Swagger and ensure backward compatibility.
• Implement secure application design using Spring Security, OAuth2, and JWT.
• Ensure system observability through logging, monitoring, and tracing using modern tools.
• Deploy and manage applications using Docker and Kubernetes/OpenShift, supporting CI/CD and GCP deployments.
• Troubleshoot production issues, perform root cause analysis, and drive continuous improvement.
• Mentor team members and promote best engineering practices across the team.

Your Profile

Essential skills/knowledge/experience:

• Strong hands-on experience in Java development (Java 11/17/21) using Spring Boot and Spring ecosystem.
• Expertise in microservices and distributed systems design, including REST APIs and event-driven architecture.
• Experience with testing frameworks and practices such as JUnit, Mockito, Cucumber, and TDD/BDD.
• Strong knowledge of SQL and relational databases, including data modelling and optimisation.
• Experience with containerisation and orchestration tools such as Docker and Kubernetes/OpenShift.
• Experience working with cloud platforms, preferably Google Cloud Platform.
• Strong understanding of security practices, including OAuth2, JWT, and secure coding standards.
• Experience with CI/CD tools and automated deployment pipelines.
• Familiarity with observability tools such as Splunk, Elasticsearch, Grafana, or Kibana.
• Strong analytical, problem-solving, and communication skills.

Desirable skills/knowledge/experience:

• Experience with Kafka or JMS for event-driven systems.
• Knowledge of Infrastructure as Code tools such as Terraform or Ansible.
• Experience in platform engineering or SRE practices.
• Strong knowledge of GCP services such as GKE, Cloud Run, or Pub/Sub.
• Experience within banking, financial services, or other regulated environments.
• Familiarity with large-scale data processing or search technologies such as Elasticsearch or Spark.

Rewards & Benefits

TCS is consistently voted as a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon.

Diversity, Inclusion and Wellbeing

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.

As a Disability Confident Employer, we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at UKI.recruitment@tcs.com if you would like to opt in.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at UKI.recruitment@tcs.com with the subject line: “Adjustment Request” or call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

Beware of Fraudulent offers

This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail, Yahoo Mail, and so on. TCS has not authorised any third-party company to collect money on their behalf. As a vigilant job seeker, beware of fraudulent recruitment activity and protect your interests! You can write to UKI.recruitment@tcs.com to report any fraudulent activity.

Due to the high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.

Join us and do more of what matters. Apply online now.