Sr IT Security Specialist

Overview

Senior technical authority and key operational lead within the IT Security Team, serving as the primary escalation point for security operations, advanced incident handling, and cross-functional security guidance. Remains hands-on and technical while guiding junior and mid-level team members and working with Infrastructure, Network, OT, and Compliance teams.

What you'll do

• Provide expert guidance to junior and mid-level security resources as the senior point of escalation within the IT Security Team.
• Perform advanced daily security telemetry analysis using modern SIEM, EDR, NDR, and threat intelligence tools to isolate high-risk threats from background noise.
• Respond to, resolve, or escalate complex security incidents, including high-severity events escalated by the MDR provider.
• Investigate enterprise security violations and lead thorough postmortem analyses to identify systemic vulnerabilities, threat trends, and remediation opportunities.
• Support updates and continuous testing for Incident Response (IR) and Disaster Recovery (DR) plans.
• Participate in a senior-tier on-call rotation for critical incident escalations.
• Research emerging cyber threats and zero-day vulnerabilities, translating threat intelligence into proactive defense measures.
• Review, prioritize, and execute remediation strategies for penetration test and vulnerability assessment findings.
• Recommend, schedule, or apply critical security fixes, patches, and defensive controls in response to active risks or breaches.
• Partner with the Infrastructure Team to secure and ensure the integrity of Windows, Linux, Active Directory, and hybrid cloud environments.
• Partner with the Network Team to maintain the security integrity of WAN, LAN, telephony systems, and Operational Technology (OT) networks.
• Collaborate with key stakeholders to align daily security operations with the enterprise-wide risk management framework.
• Produce executive-level monthly exception, metrics, and incident reporting to inform leadership on enterprise security posture.
• Support annual IT security audits, regulatory compliance inquiries, and customer security assessments.
• Monitor policy adherence across the enterprise and execute corrective action plans where non-conformities are identified.
• Manage incident and change request service levels (SLAs) according to IT service management guidelines.
• Develop, standardize, and maintain technical documentation for security platforms and operational procedures.

What you'll need

• 7 to 13 years of hands-on experience in IT security, security operations (SOC), threat management, or security engineering.
• Demonstrated track record of leading complex security investigations, root-cause analyses, and cross-functional remediation projects.
• Proven experience working across diverse environments, including on-premises infrastructure, cloud workloads, and network/OT environments.
• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related field (or equivalent practical experience).
• Deep working knowledge of security operations, modern SIEM/EDR tools, threat hunting methodologies, network security protocols, and security frameworks (e.g., NIST CSF, MITRE ATT&CK).
• Proven ability to collaborate with and influence infrastructure, network, and application teams without formal authority.
• Strong analytical skills with the ability to remain calm, focused, and decisive in time-sensitive incident scenarios.
• Excellent written and verbal communication skills, including mentoring peer engineers and explaining complex risks to non-technical stakeholders.

Nice to have

• Advanced industry certifications (e.g., CISSP, GCIH, GCFA, CISM, CEH, or CCSP).

Details

• Location: Chennai, India.
• Requires participation in an on-call rotation to respond to high-severity security incidents.
• Occasional travel (5–10%) may be required for conferences, business audits, or site assessments.
• Demands high independent judgment while operating effectively within a collaborative enterprise team.