Application Support Engineer
If you need support in completing the application or if you require a different format of this document, please get in touch with at UKI.recruitment@tcs.com or call TCS London Office number 02031552100 / +44 204 520 2575 with the subject line: “Application Support Request”.
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.
The Role
The Application Support Engineer will provide operational and technical support for business-critical applications built on C# and .NET technologies. The role focuses on maintaining application stability, resolving production issues, supporting releases, and collaborating with development teams to ensure reliable, secure, and performant systems in live environment
Your responsibilities:
· Provide day-to-day support for C#/.NET-based applications across production and non-production environments.
· Investigate and resolve application incidents, including code-related and configuration issues.
· Analyse application logs, exceptions, and stack traces to identify root causes.
· Perform minor code fixes, configuration updates, and application patches under controlled processes.
· Work closely with development teams to support bug fixes, enhancements, and releases.
· Monitor application health, performance, and availability using monitoring and alerting tools.
· Execute database queries and data corrections to support application functionality.
· Support deployments, version upgrades, and environment changes for .NET applications.
· Maintain support documentation, known-error records, and operational runbooks.
· Participate in on-call or shift-based support and contribute to service improvement initiatives.
Your Profile
Essential skills/knowledge/experience:
· Experience supporting C# / .NET applications in production environments.
· Good understanding of application architecture, including APIs, services, and background jobs.
· Hands-on experience analysing logs, exceptions, and error traces in .NET applications.
· Proficiency in SQL for data investigation, validation, and corrective actions.
· Experience with incident, problem, and change management processes (ITIL aligned).
· Ability to troubleshoot issues across application, database, and infrastructure layers.
· Familiarity with deployment and release support for .NET-based systems.
· Experience working with monitoring and alerting tools for application support.
· Strong analytical, troubleshooting, and communication skills.
· Experience working in Agile or DevOps-oriented environments.
Desirable skills/knowledge/experience: (As applicable)
· Exposure to ASP.NET / .NET Core / Web APIs.
· Experience with Azure-hosted .NET applications or cloud platforms.
· Knowledge of CI/CD pipelines supporting C# applications.
· Familiarity with scripting or automation for support activities.
· Understanding of application security, authentication, and authorization concepts.
· Experience supporting customer-facing or high-availability applications.
Rewards & Benefits
TCS is consistently voted a Top Employer in the 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. 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 call TCS London Office 02031552100 / +44 204 520 2575 to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.
Next Steps:
Application Process
1. 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 - UKI.recruitment@tcs.com
2. Skill-Based discussion: This will be a level 1 interview with the project team, it can be via video or in-person. Details will be confirmed by your recruiter.
3. Managerial discussion: This discussion will focus on behavioural aspects and person-organisation fit.
4. HR Discussion: This will be with one of the members of the HR team and will cover your career journey, aspirations for growth, compensation and any other questions you may have.
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.