Senior Information Security Engineer

About the role

We are seeking an experienced Information Security Engineer with strong Microsoft Windows infrastructure expertise to support the delivery of security solutions to our customers. This role will focus on implementing and securing Windows-based environments. The ideal candidate will have hands-on experience with Active Directory, Group Policy management, endpoint protection, and role-based access control, and will work directly with customer environments to design, configure, and deploy secure Windows infrastructure solutions. Travel up to 30% may be required.

Responsibilities

• Design, implement, and manage Group Policy Objects (GPOs) to enforce security configurations and organizational standards within customer environments.
• Configure, administer, and harden Windows Server and Windows workstation systems as part of security solution deployments.
• Implement and maintain Active Directory security configurations, including user/group management, OU structures, and policy enforcement.
• Design and implement role-based access control (RBAC) and least-privilege access models.
• Deploy, configure, and manage endpoint protection and antivirus solutions.
• Apply system hardening practices aligned with industry security frameworks and best practices.
• Perform security assessments of Windows environments and implement remediation actions.
• Assist in creating secure configurations, patch processes, and compliance with security policies.
• Document system configurations, security controls, and deployment procedures for customer environments.
• Provide technical guidance and knowledge transfer to customer stakeholders when appropriate.

Requirements

• Bachelor’s degree in Information Security, Computer Science, Information Technology, or a related field (or equivalent experience).
• 8+ years of experience administering and securing Microsoft Windows environments.
• Strong hands-on experience with Active Directory administration.
• Proven experience creating and managing Group Policy Objects (GPOs).
• Experience implementing role-based access control and identity management practices.
• Hands-on experience deploying or managing endpoint protection / antivirus platforms.
• Solid understanding of Windows security architecture and system hardening techniques.
• Experience performing security assessments and remediation.
• Experience with Microsoft Hyper-V Virtualization, Splunk, PDQ, RSA Authentication Manager.
• Must be a U.S. citizen. Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information.
• As a condition of employment, candidates will be required to pass a pre-employment drug screen.

Qualifications

• Experience with Ansible or PowerShell scripting and automation.
• Familiarity with security monitoring tools and SIEM platforms.
• Knowledge of security frameworks such as NIST, CIS Benchmarks, or ISO 27001.
• Experience supporting enterprise or multi-tenant environments.
• Experience with protecting data at rest.
• Experience with stakeholder management.
• Current DoD clearance preferred.
• Experience with JIRA is preferred.
• Relevant certifications such as: CompTIA Security+, CISSP, Microsoft security or identity certifications, GIAC certifications.