Security Operations Analyst L1 – MS Defender
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Job Description
Security Operations Analyst monitoring Microsoft Defender alerts and endpoint protection for Gruve, an AI-focused software services startup. Performing L1 triage, incident logging, escalation, and 24x7 security operations support.
Responsibilities:
- Monitor Microsoft Defender portals, security dashboards, alerts and incident queues
- Perform initial triage of malware detections, suspicious activities and endpoint security alerts
- Review alert details, device information, severity and timestamps to assess potential impact
- Perform basic checks on Defender sensor health, endpoint onboarding and protection status
- Identify endpoints with failed scans, outdated security intelligence or protection-related issues
- Escalate suspicious activities and high-severity alerts according to established procedures
- Create, categorize, prioritize and update security incident tickets in ServiceNow or equivalent ITSM tools
- Collect relevant alert evidence, device details, timestamps and investigation information
- Perform approved first-level checks using documented security runbooks
- Track incidents and coordinate with L2/SOC teams for investigation and remediation
- Validate remediation status and endpoint protection recovery as directed
- Follow Security Incident, Incident, Change and Request Management processes
- Ensure timely alert acknowledgement, escalation and SLA compliance
- Maintain accurate incident records, operational checklists and shift handover documentation
- Coordinate with L2/L3, SOC, Endpoint, Identity and Infrastructure teams
- Support routine security reporting, alert tracking and operational reviews
- Identify recurring alerts and report monitoring or documentation gaps to L2
- Ensure effective APAC–EMEA–NLAM shift handovers and uninterrupted 24x7 monitoring
Requirements:
- 1–3 years of experience in IT operations, security monitoring, endpoint support or security incident management
- Basic understanding of endpoint security, antivirus, malware detection and security alerts
- Familiarity with Microsoft Defender for Endpoint or equivalent endpoint protection tools
- Basic knowledge of Windows operating systems, processes and endpoint health
- Ability to review alerts, capture evidence and follow documented investigation procedures
- Understanding of incident severity, escalation matrices and SLA requirements
- Familiarity with ServiceNow or equivalent ITSM platforms
- Good communication, documentation and shift handover skills
- Strong attention to detail and adherence to security procedures
- Willingness to work in rotational shifts in a 24x7 security operations environment
- Microsoft SC-900 or equivalent security fundamentals certification
- Basic knowledge of Microsoft Defender XDR and Microsoft Sentinel
- Familiarity with malware, phishing, endpoint threats and common attack techniques
- Basic PowerShell and Windows troubleshooting knowledge
- Exposure to KQL, security dashboards and incident reporting
- Understanding of ITIL and security incident management processes
Benefits:
- Dynamic environment with strong customer and partner networks
- Culture of innovation, collaboration, and continuous learning
- Diverse and inclusive workplace
- Equal opportunity employer
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