If you need support in completing the application or if you require a different format of this document, please get in touch withat with the subject line: "Application Support Request".Role: SOC Analyst L3Job Type: PermanentLocation: Letterkenny OnsiteJoin a global tech leader right here in Donegal. 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.Careers at TCS: It means moreTCS 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.Gain access to endless learning opportunities.Fast track your growth with diverse career opportunities internally.Grow your career, while being exposed to new technologies.The RoleAs a Level 3 SOC Incident Responder, you act as the highest escalation point for complex and critical security incidents. You lead and coordinate all aspects of the incident response process, ensuring timely containment, eradication, and recovery. During an incident, you hold full authority and responsibility for decision-making and directing actions.Your role involves performing advanced forensic analysis, threat hunting, and root cause investigations to determine the scope and impact of attacks. You develop and implement effective containment and remediation strategies while minimizing business disruption. Clear communication with stakeholders and leadership is essential, providing updates and guidance throughout the incident lifecycle.You also deliver expert technical support to enterprise-wide cyber defence teams, assisting in resolving challenging issues. Mentoring junior analysts and enhancing SOC processes are key parts of your responsibilities. Post-incident, you conduct reviews and recommend improvements to strengthen detection and response capabilities. Ultimately, you ensure the organization remains resilient against evolving cyber threats.Your responsibilities:Key Responsibilities:Lead and coordinate major incident responses, serving as the primary contact during major incidents & ensuring timely resolution.Monitor external data sources (e.g., cyber defense vendor sites, Computer Emergency Response Teams, Security Focus) to maintain currency of cyber defense threat conditions and determine which security issues may have an impact on the enterprise.Develop and refine incident management processes and procedures.Collaborate with stakeholders to ensure a unified incident response.Analyze incidents, provide reports, and recommend improvements.Develop and implement incident management processes aligned with industry best practices.Stay updated on industry trends and drive continuous improvement.Direct cross-functional teams and ensure effective collaboration.Work with IT operations, security, engineering, and business units for a coordinated response.Lead incident response, ensuring clear communication and timely resolution.Write and publish after-action reviews and cyber defense techniques, guidance, and reports on incident findings to appropriate constituencies.Execute risk hunting activities also Undertake forensic investigations.Act as subject matter expert and expert witness where required.General intelligence advisories and delegate intelligence aggregation tasks to L2Generate new use cases for emerging threats.Ensure quality of investigations and notification and direct L2 and L1 accordinglyReport deviations to SOC manager and L4.Your ProfileEssential skills/knowledge/experience:Extensive experience in Information Security with strong SOC background.A few years of proven experience in Cyber Incident Response at an advanced level.Hands-on experience with Microsoft Sentinel, including KQL (Kusto Query Language), playbook automation, and custom rule creation.Strong knowledge of threat intelligence platforms, integration, and automation workflows.Deep understanding of the security incident response lifecycle and advanced forensic techniques. Ability to perform threat hunting and develop new detection use cases for emerging threats.Competent planning and organizational skills, with initiative and ability to prioritize under pressure.Proven ability to influence senior stakeholders and communicate complex technical issues to non-technical audiences.Broad technical knowledge of enterprise technology landscapes, including cloud (Azure), networks, endpoints, and applications.Familiarity with security, risk, and regulatory frameworks (NIST, ISO 27001, COBIT, ITIL, PCI-DSS, GDPR, PSD2, etc.).Experience with SIEM tuning, log analysis, and integration of multiple data sources.Strong understanding of automation and orchestration in SOC environments (Logic Apps, SOAR).Desirable skills/knowledge/experience:Microsoft 365 Certified: Security Administrator AssociateMicrosoft Certified: Identity and Access Administrator AssociateMicrosoft Certified: Azure Security Engineer AssociateCompTIA Security+ or CySA+Certified Information Systems Security Professional (CISSP)Certified Information Security Manager (CISM)Certified Information Systems Auditor (CISA)GIAC Certified Incident Handler (GCIH) or GIAC Certified Forensic Analyst (GCFA )Rewards & BenefitsTCS 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 WellbeingTata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the Ireland Employment Equality Acts as amended) and the Equal Status Acts 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 atif you would like to opt in.If you are an applicant who needs any adjustments to the application process or interview, please contact usat with the subject line: "Adjustment Request" or emailto request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.Beware of Fraudulent offersThis 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 toto 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.