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Job Type: Permanent
Location: Letterkenny, Co. Donegal – Hybrid, 3 days per week in office
Can you design, develop, and execute comprehensive test plans and test cases, ensuring all requirements are met throughout the software development lifecycle?
Ready to join a leading IT consultancy where you will the autonomy to shape your career?
Make a meaningful impact as a Senior Software Test Engineer at TCS!
Join a global tech leader right here in Donegal. 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. With over 850 employees and a state-of-the-art global delivery centre, we’re proud to offer world-class career opportunities without having to leave the Northwest. Recognised as Workplace of the Year by the Letterkenny Chamber, we foster a culture of continuous learning, innovation, and respect. Our people are at the heart of everything we do – collaborating across teams, geographies, and disciplines to drive real change for clients around the world. Be part of something global, grounded in Donegal.
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.* Collaborate with leading lights of industry
Gain access to endless learning opportunities
Shape the future of TCS
The Role
Are you ready to shape the future of enterprise technology? As a Senior Software Test Engineer at TCS, you’ll play a pivotal role in delivering highly available, industry-leading products for global streaming services. You’ll leverage your deep expertise in application and back-end testing, working with cutting-edge tools like Charles Proxy, Postman, SQL, and Linux, while driving innovation in automated and manual test development.
This is your chance to make a real impact—solving complex technical challenges, ensuring 24/7 reliability, and collaborating with top talent on projects that matter. If you thrive in dynamic environments and are passionate about technical leadership, join us to push the boundaries of what’s possible and help deliver solutions that reach millions worldwide.
Key Pillars
Back End Focus: The role focuses on server-side logic, database management, API testing, and integration with front-end components, ensuring high performance and reliability for enterprise applications.
Technical Breadth: Candidates should demonstrate a proven background in enterprise application testing and testing frameworks associated in Charles Proxy, Jira, Linux OS, Postman, SQL.
Testing: Manual and automated test development (including Google Test), test case management, client and back-end testing
Your Profile
Key skills/knowledge/experience:
Tech stack
Charles Proxy Utilisation, Jira, Linux OS Utilisation, Postman Utilization, SQL Utilization, Test Case Management System, Testing - Client, Testing - Backend, Test Development - Manual, Testing - Manual.
What you’ll need* Proven hands-on professional experience.
Troubleshooting - Good skills in identifying and resolving technical and networking/communication issues throughout the entire technology stack.
Experience with automated testing methodologies and frameworks, preferably Google Test.
Solid understanding of object-oriented programming (OOP) principles.
Troubleshooting - Exceptional ability to isolate \& troubleshoot technical issues across the full technology stack by leveraging automated testing methodologies.
Strong communication skills, verbal and written.
Ability to work independently and in a team environment.
History working with automation frameworks creating automated test scripts.
Nice to have* BS Engineering or SW Engineering, Computer Science, computer Engineering or equivalent experience required. MS Engineering is desired.
Understanding of dependency injection and Software Design Patterns.
Experience in test automation Experience with unit testing frameworks (e.g., MSTest NUnit).
Experience with Code Coverage tools and procedures is a plus.
Experience with Python scripts Ability to work seamlessly across both Linux and Windows development environments, and experience with cross-compilation and Android build tools.
Experience with Git.
Deep operational knowledge of AWS, including cost-aware system design.
Contributions to engineering culture, hiring, or organizational development.
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 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.comwith 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.
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.