Senior Java Full Stack Developer in London

Role - Senior Full Stack Developer

Mode - Hybrid

Location - London

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. You will set the bar for engineering standards, champion secure-by-design practices, mentor teammates, and ensure scope is delivered reliably, on time, and with clear operational ownership.

Your responsibilities:

• 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.
• Develop scalable APIs, microservices and event-driven flows (e.g., Kafka), ensuring stable contracts and versioning so front-end changes can ship safely and independently.
• 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:

• Must be proficient in Java 21 and Springboot 3.4+ and Spring Cloud with Microservices.
• Strong Proficiency in Docker/Kubernetes (Containerization and Orchestration).
• Strong hands-on knowledge on AWS.
• Strong working knowledge on React/Next JS.
• Must be fluent with CICD and relevant tooling (AWS).
• Must have experience TDD and Paired Programming.
• Strong knowledge on JUNIT and Mockito.
• Strong knowledge on Agile methodologies.
• Should understand DRY and SOLID principles.
• Should be AI Fluent (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.

Rewards & Benefits:

TCS is consistently voted 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.

Next Steps: Application Process (optional)

Online application: You can apply directly through LinkedIn/ by uploading your CV. In case you wish to submit your application via another format like audio/video, please, contact us.

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!

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