Full stack Senior Java Developers

Role: Senior Java Full Stack Developer

Location: London

Mode: Hybrid

Contract Type: Permanent

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.

Ready for your next big role to own and deliver high-quality, secure full stack services (Java React JS) that meet business outcomes. To lead team in solving business problems by designing and building services in Java and API-first data delivery patterns.

The Role:

• Join us as a Senior Java Full Stack Engineer and help build and evolve modern, high-impact applications on a Java-first technology stack.
• You’ll work hands-on across the stack—building intuitive front ends with React/Next.js, and delivering secure, scalable services using Java, Spring Boot, microservices, Kafka and AWS.
• Deliver full-stack features end-to-end—building responsive React/Next.js user interfaces, designing clean API contracts, and implementing Java/Spring Boot services to support them.
• Work closely with product and UX to turn designs into intuitive experiences—contributing to component design, state management, accessibility and consistent UI patterns.
• Build, deploy and operate full-stack applications on AWS—optimising UI and API performance, and using logging/metrics/tracing to keep services observable and reliable.
• Design secure end-to-end integrations—covering browser-to-API authentication/authorisation, API gateway patterns, and data/storage interactions that meet performance and compliance needs.
• Strengthen CI/CD for both front-end and back-end—automating builds, tests, security scans and deployments to improve release frequency and confidence.
• Contribute to agile delivery across the stack—refining stories, proposing technical designs, and balancing UI/UX quality with API/service robustness.
• Own quality and outcomes end-to-end—writing well-tested code (unit/integration/UI tests), reviewing PRs across React/Next JS and Java, mentoring teammates if needed, and driving issues through to resolution in production.

Your Profile:

Essential skills/knowledge/experience:

• Proficient in Java 21 and Springboot 3.4+ and Spring Cloud with Microservices.
• Proficiency in Docker/Kubernetes (Containerization and Orchestration).
• Good understanding of AWS.
• Must have strong hands-on experience on React/Next JS.
• Must have worked extensively on CI/CD and relevant tooling (AWS).
• Must have a working knowledge on TDD and Paired Programming.
• Should have strong exposure to JUNIT and Mockito.
• Must have a very strong understanding of Agile methodologies.
• Must be aware of DRY and SOLID principles.
• Should have a very keen intent on AI Fluency (Using Github Copilot or any other dev assist AI Tool).

Desirable skills/knowledge/experience:

• No SQL, API Gateway experience (AWS API, Kong or other equivalent like APIGEE).
• Experience with DevOps tools such as Jenkins (CI/CD), Maven, GitHub (source code/Version control), Ansible.
• Ability to create and utilize Terraform/ AWS Cloud Formation templates (IaaC) to automate creation of AWS resources and images.
• Kafka – Confluent.
• Proficient in developing scripts and scripting languages and AWS components like GLU, Athena or any similar components experience is needed.
• Experience with Playwright or any similar UI Automation tools.

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; Diversity, Inclusion and Wellbeing. Tata Consultancy Services UKI 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.