Job Type: Permanent
Location: Nationwide (Letterkenny GDC Base) hybrid policy with some travel to Letterkenny, Co Donegal / Customer site in Dublin
Make a meaningful impact as Senior Software Engineer at TCS!
The Role
We are seeking a Senior Software Engineer with deep expertise in application and back‑end development with a passion for building innovative solutions. This is an exciting opportunity to work on industry‑leading products and platforms, where you’ll design, develop, and maintain robust, scalable systems that power transformative digital experiences.
Key Pillars:
Back End Focus: The role focuses on server‑side logic, database management, API development, and integration with front‑end components, ensuring high performance and reliability for enterprise applications.
Technical Breadth: Candidates should demonstrate mastery in languages such as Scala, Java and cloud platforms like AWS, with a proven track record in scaling systems and driving architectural decisions.
What you’ll do:
Collaborate with cross‑functional teams of engineers, product managers, and designers.
Build scalable, performant, and resilient backend systems that support critical business needs.
Participate in system design and architecture reviews to influence technical direction.
Drive software quality through code reviews, testing, and continuous integration.
Contribute to a positive and inclusive engineering culture through mentorship, knowledge sharing, and leadership at your level.
Investigate and resolve complex technical issues in production environments.
Author and review technical design documents, RFCs, and root cause analyses.
Continuously learn and grow in your engineering craft and domain knowledge.
Participate in an on‑call rotation to ensure swift resolution of any production outages involving your systems.
What you’ll need:
5+ years of professional experience.
Expert‑level fluency in at least one programming language and strong system design skills.
Experience leading the design, development, and operation of complex distributed systems in a modern cloud provider.
Deep knowledge of REST API design, scalability, fault tolerance, and performance optimization.
Demonstrated ability to own projects end‑to‑end and mentor junior engineers.
Significant experience with production infrastructure, observability, and incident management.
Strong collaboration and communication skills across disciplines and teams.
Clear understanding of engineering best practices and architectural principles.
Nice to have:
Deep familiarity with AWS cloud services across compute, storage, and serverless.
Experience defining and evolving team‑wide coding standards and operational practices.
Expertise in Scala and/or functional programming patterns.
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 fiona.harvey@tcs.com to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.
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