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Role: Java Technical Lead
Contract: Perm
Location: Letterkenny (hybrid - 3 days per week in office)

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.
It means more because you will:

• Take ownership of end‑to‑end technical architecture and delivery on complex enterprise‑scale modernisation initiatives
• Work with modern, cloud‑ready frameworks and platforms while shaping future‑state solutions
• Grow as a technical leader by mentoring teams and influencing engineering best practices

The Role
This role provides an opportunity to work as a Technical Architect / Technical Lead on large‑scale application enhancement and modernisation initiatives within the financial services domain. You will play a key role in defining future‑state architecture, driving high‑quality technical delivery, and enabling the adoption of modern development, deployment, and Agile practices across enterprise systems.

Your Responsibilities

• Analyse existing application architecture and define future‑state technical solutions aligned with business goals
• Translate business and technical requirements into clear solution designs and accurate effort estimations
• Perform impact analysis for application enhancements and system changes
• Design and propose scalable architectural and technical solutions with clear implementation approaches
• Lead the team and govern code reviews to ensure compliance with quality, performance, and security standards
• Own end‑to‑end technical delivery including build, deployment, and release activities
• Manage source code versioning and maintain high standards of code quality and maintainability
• Apply and promote Agile practices throughout the delivery lifecycle
• Mentor and guide team members through complex technical challenges

Your Profile
Back‑End Development (Java / Spring / Oracle)

• Strong hands‑on experience in Java with Spring MVC and exposure to Spring Boot
• Solid expertise in Oracle Database, including SQL, PL/SQL, and performance optimisation
• Experience with Hibernate / JPA for object‑relational mapping
• Hands‑on experience with Open Liberty for application deployment and runtime management
• Design and consumption of RESTful APIs
• Proficiency in build and dependency management using Maven / Gradle
• Experience with JUnit / Mockito for unit and integration testing
• Hands‑on usage of GitHub for source code version control
• Basic understanding of CI/CD pipelines, preferably using tools such as Jenkins
• Working knowledge of JSON and XML for data exchange

Front‑End Development (React & Web Components)

• Strong proficiency in JavaScript / TypeScript
• Hands‑on experience with the React framework, including components, modules, and services
• Knowledge of Web Components, including Custom Elements and Shadow DOM
• Solid understanding of HTML and CSS for building maintainable user interfaces
• Experience with responsive design, using frameworks such as Bootstrap
• Familiarity with Node.js / NPM for dependency and package management
• Understanding of Webpack or similar build and bundling tools
• Experience integrating front‑end applications with RESTful APIs
• Familiarity with front‑end unit testing frameworks and practices
• Strong awareness of accessibility standards (WAI‑ARIA) and inclusive design principles

Desirable skills / knowledge / experience

• Full‑stack exposure with experience across both back‑end and front‑end technologies
• Working knowledge of React, TypeScript, and modern UI development practices
• Awareness of accessibility standards (WAI‑ARIA) and inclusive design principles
• Strong debugging and troubleshooting skills across complex application landscapes
• Understanding of application security best practices, monitoring, and logging

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 and 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 and partner with our local communities in Ireland.

Diversity, Inclusion and Wellbeing
Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the Ireland Employment Equality Acts 1998-2011 (as amended) and the Equal Status Acts 2000-2012 (as amended).

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 email rebecca.mcclelland@tcs.com 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.