Security Engineer (Windows and Linux)-Full Time

(OS Security & Baseline Operations)

• 7-12 years overall IT experience
• 3+ years in OS security / baseline operations
• 1-3 years in a technical lead or peoplemanagement role

Core Technical Skills

Windows Security

• Windows Server & Client security hardening (2016/2019/2022, Windows 10/11)
• Group Policy (GPO) design, enforcement, and auditing
• Windows security baselines (CIS, Microsoft Security Baselines)
• Patch management and vulnerability remediation
• Active Directory security (LDAP, Kerberos, NTLM, privileged access)
• PowerShell scripting for security automation and compliance checks
• Windows event logging, audit policies, and incident analysis
• Linux Security: Security hardening for RHEL, Ubuntu, SUSE, CentOS. Linux security baselines (CIS, DISA STIGs). User/group management, sudo policies, PAM. SELinux/AppArmor configuration and troubleshooting. SSH hardening, key management, and access controls. Bash/Python scripting for automation and compliance. Log analysis (syslog, auditd)
• Security & Compliance: OS baseline definition, validation, and continuous compliance monitoring. Vulnerability management (Qualys, Tenable, Defender, etc.). Secure configuration management and drift detection. Incident response support and root cause analysis.
• Experience with regulatory/compliance frameworks: CIS, NIST, ISO 27001, SOX (nice to have). Security documentation, SOPs, and audit evidence preparation.
• Tooling & Platforms (Preferred): Endpoint / OS security tools (Microsoft Defender, CrowdStrike, etc.). Configuration management (Ansible, SCCM, Intune, Puppet, Chef). Ticketing & workflow tools (ServiceNow, Azure DevOps, Jira). Cloud OS security exposure (Azure / AWS - IaaS VMs). Monitoring and SIEM tools (Splunk, Sentinel - nice to have)
• Operational & Analytical Skills: Baseline exception management and risk assessment. OS build standards and golden image reviews. Troubleshooting complex OSlevel security issues.

Strong documentation and reporting skills: Metrics/KPIs for security posture and compliance health. People Management.