Senior Information Security Analyst

OSB India

Bengaluru

On-site

INR 3,500,000 - 5,500,000

Full time

3 days ago

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Job summary

OSBIndia Private Ltd. in Bengaluru is seeking an IT Information Security – Level 3 Security Analyst to join the IT Security Operations Centre. The role acts as a senior escalation point for complex incidents, driving investigations, enhancing detection, and overseeing vulnerability management within a fast-paced SOC.

You will collaborate with infrastructure, application, cloud, and risk teams to remediate security risks while mentoring junior analysts and shaping security strategy.

Qualifications

5–6 years of experience in cyber security and security operations.
Experience with incident response, threat hunting, and vulnerability management.
Strong knowledge of SOC processes, tooling, and security engineering.
Microsoft Azure Security and Defender suite expertise.

Responsibilities

Act as a senior escalation point for complex security incidents.
Lead end-to-end response for major cyber incidents including ransomware and APTs.
Mentor Level 1 and Level 2 analysts and coordinate with stakeholders.
Perform advanced threat hunting using SIEM, EDR, UBA, and network monitoring.
Lead vulnerability management and remediation governance.
Drive post-incident reviews and derive actionable improvements.
Develop and maintain group standards, playbooks, and runbooks.

Skills

Incident response leadership

Threat hunting

Vulnerability management

SOC governance

Mentoring

Tools

SIEM

EDR

Azure Security

Microsoft Defender

ServiceNow

CrowdStrike

Darktrace

Palo Alto

Microsoft 365 Security

Threat intelligence

Job description

Job Description

Job Title:

IT Information Security – Level 3 Security Analyst

Department:

IT Security

Line Manager’s Job Title:

IT Security Operations Manager

Location:

Bangalore

Version Date:

20/07/2026

The Level 3 Security Specialist is one of the most senior technical security positions within the OSB Security Operations Centre (SOC). The role serves as the primary technical escalation point for complex cyber security incidents, advanced threat detection, vulnerability management, and security monitoring operations.

The L3 Security Specialist is responsible for driving the maturity of the SOC by leading major incident investigations, enhancing detection capabilities, overseeing vulnerability management processes, and ensuring the organization maintains a strong security posture against evolving cyber threats.

The role requires extensive experience in Security Operations, Incident Response, Threat Hunting, Vulnerability Management, and Security Engineering. The successful candidate will provide technical leadership across the SOC, mentor junior analysts, influence security strategy, and work closely with infrastructure, application, cloud, and risk teams to drive remediation of identified security risks.

What you will be responsible for:

Act as a higher technical escalation point for complex security incidents and threat investigations.
Lead end-to-end investigation and response activities for major cyber incidents, including Advanced Persistent Threats (APT), ransomware, insider threats, phishing campaigns, and cloud security incidents.
Provide expert guidance and mentorship to Level 1 and Level 2analysts.
Coordinate incident response activities with internal and external stakeholders.
Conduct advanced threat hunting activities using SIEM, Endpoint Detection & Response (EDR), User Behaviour Analytics (UBA), and network monitoring platforms.
Review detection logic and continuously enhance monitoring use cases to improve SOC effectiveness.
Act as the point of escalation for deep-dive incident analysis, determining if critical systems or data sets has been impacted.
Own and manage the enterprise Vulnerability Management Program.
Drive vulnerability lifecycle management from identification through remediation and validation.
Collaborate with infrastructure, application, cloud, and business teams to prioritize vulnerability remediation based on Exploitable vulnerabilities and business impact.
Lead vulnerability review meetings and remediation governance forums.
Conduct research on emerging threats in support of security enhancement and development efforts; recommend security improvements, upgrades.
Lead post-incident reviews and ensure lessons learned are translated into actionable improvements.
Lead the creation, update and maintenance of the group standards, playbooks and runbooks.

Key Knowledge and abilities include

5–6 years of experience in Cyber Security, Security Operations, Incident Response, Threat Hunting, and Vulnerability Management.
Advanced knowledge of Security Operations Centre (SOC) processes and technologies.
Expert in the use of SIEM Services, User Behaviour tools, Data Loss Prevention, email gateway
Advanced knowledge of network security concepts including:

Firewalls

IDS/IPS

VLANs

Network segmentation

Network traffic analysis

Detailed Knowledge of targeted cyber-attack (APT), how to analysis these and respond to and mitigate against the attacks is essential.
Excellent knowledge and experience with information security frameworks and concepts, trends and practices.
Strong knowledge of Microsoft Azure Security.
Experience with Microsoft Defender Suite.
Experience with Microsoft 365 Security Services.
Strong threat hunting and forensic investigation capabilities.
Experience reviewing Indicators of Compromise (IOCs) and Indicators of Attack (IOAs).
Proficient with Vulnerability Remediation tools / activities
Experience with work-flow management tools such as ServiceNow is essential.
Leveraging creative thinking and problem-solving skills, individual initiative, and utilizing MS Office (Word, Excel, Access, and PowerPoint).
Demonstrated ability to collaborate with technology teams.
Proven mentoring and coaching experience.