Tata Consultancy Services
Support Engineer
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Role: Java Support Engineer
Job Type: Permanent
Location: London, United Kingdom
Number of hours: 40 hours per week – full time
Ready to utilize your experience and expertise in Java Support Engineer?
We have an exciting role for you - Java Support Engineer!
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.
- Be part of an exciting team where you will be challenged every day.
- Work closely with the range of teams within the business to bring products to life.
- Work with customers and identify opportunities to support their strategy and improve their processes across functions.
The Role
The candidate will take on end-to-end ownership of incident and problem management, ensuring reported issues are analysed and resolved within defined SLAs across POS for client Retail stores. The expectation is for the individual to prioritise revenue-impacting incidents, drive root cause identification for recurring issues, and manage the full change request process for the POS application.
A key part of the role involves hands-on debugging and troubleshooting of issues spanning Java-based microservice backends and Swift POS clients — including log analysis, service dependency tracing, and identifying failure points across distributed systems. The individual will be expected to diagnose issues at the code and infrastructure level and collaborate closely with engineering teams to drive timely resolution. They will provide production support during releases and upgrades, and serve as a technical point of contact for POS-related queries.
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The role also requires extending support during critical business periods such as NPI, NSO/NCO, festivals, promotions, and peak seasons. Effective escalation and coordination with internal and external teams is essential, alongside the generation of management-level reports and statistics for research and analysis, daily handover reporting to the next working shift, and seamless coordination among shift resources to ensure continuity of operations.
Your responsibilities
- Provide L2/L3 production support for complex Java and Java-based web applications in a high-volume, large-scale environment.
- Monitor application health, investigate alerts and analyse logs using Splunk to identify service-impacting issues.
- Troubleshoot and debug incidents across Java, JEE, Spring framework and RESTful service components.
- Diagnose application and integration issues, identify root causes and implement effective resolutions within agreed SLAs.
- Develop, test and deploy bug fixes for production issues while following established change and release processes.
- Support Java web applications and services, including issue analysis across application, API and database layers.
- Work with Oracle, Cassandra, NoSQL or equivalent database technologies to investigate data-related incidents and performance issues.
- Coordinate with development, infrastructure, database and business teams to restore services and communicate incident progress.
- Participate in rotation-based on-call support, including occasional weekend coverage, and respond promptly to critical incidents.
- Maintain incident records, troubleshooting notes, root-cause findings and knowledge articles to improve support effectiveness.
- Conduct problem management and trend analysis to identify recurring issues and recommend preventive improvements.
- Provide clear verbal and written updates to stakeholders and ensure issues are tracked through closure.
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Your Profile
Essential skills/knowledge/experience:
- Strong expertise in Java complex support, including strong hands-on L2/L3 production support.
- Strong programming and debugging skills in Java, JEE, Spring framework, Java-based web applications and RESTful services.
- Hands-on experience with Splunk, with excellent analytical and troubleshooting skills for application and production issues.
- Good database knowledge in at least one technology such as Oracle, Cassandra or other NoSQL platforms.
- Experience supporting high-volume, large-scale environments and resolving production incidents and bug fixes within SLA.
- Strong critical thinking, coordination, and verbal and written communication skills.
- Must be flexible for rotation-based on-call support, including occasional weekend coverage.
Desirable skills/knowledge/experience:
- Experience in high-volume and large-scale environments
- Root-cause analysis and problem management
- Strong stakeholder coordination and communication skills
- Experience with rotation-based on-call and weekend support
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