Endpoint Security Engineer

Sentar•Charleston, SC

About The Position

Sentar is proud to be an employee-owned company, fostering a culture of empowerment, collaboration, and innovation. Sentar is dedicated to developing the critical talent that the connected world demands to create solutions to address the convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your career. Sentar is seeking a Endpoint Security Engineer in Charleston, SC! Role Description: As an Endpoint Security Engineer you will be a key member of a dedicated team responsible for architecting, implementing, and optimizing the enterprise's host-based security posture. You will manage the endpoint security platform. Your primary focus will be on engineering and maintaining robust security policies that align with DoD STIGs, industry best practices, and threat-informed defense frameworks like MITRE ATT&CK. You are the owner of the endpoint security platform, providing the tools and enriched data that enable other teams to perform their duties. This role requires a blend of deep technical expertise, strong policy development skills, and a strategic mindset to ensure the security of diverse environments including Windows, Linux, cloud, and containerized systems.

Requirements

Clearance Level: Secret with eligibility for upgrade to Top Secret (TS)
Must possess DoD 8570 IAT Level II and must possess DoD 8140 CSSP Auditor certification or being willing to get one within 120 days
Demonstrated experience planning, configuring, and managing industry-standard enterprise-level endpoint security tools.
Strong understanding of endpoint security principles, including antivirus, host-based intrusion prevention (HIPS), and Endpoint Detection and Response (EDR).
Experience writing and implementing security policies to meet compliance frameworks (e.g., DoD STIGs).
Broad understanding of modern IT environments, including Windows/Linux operating systems, networking, cloud platforms, and containerization.
Excellent communication skills and the ability to act as a technical escalation point.
This position requires a US Citizen.
Position may require up to 25% travel as needed
OCONUS travel may be required

Nice To Haves

Experience in leading a technical migration from a legacy security platform to a modern EDR solution.
Scripting or automation experience (e.g., Python, PowerShell) for policy management or data integration.
Familiarity with providing services in a multi-tenant or "SaaS-like" model
Experience with securing containerized environments and workloads.

Responsibilities

Design, implement, test, and maintain security policies across all endpoint security tools.
Provide architecture analysis and design reviews for endpoint protection systems, identifying gaps and engineering solutions to new threats.
Administer, optimize, and maintain the health of the enterprise endpoint security platform, ensuring high availability and performance for both internal systems and subscribed customers.
Lead the technical evaluation, testing, and migration strategy on endpoint security solutions as needed.
Serve as the Tier 3 escalation point for complex technical issues from the support desk.
Provide oversight of customer-managed policies, ensuring critical controls remain active, and offer expert policy advice as needed.
Develop and execute a strong testing and validation framework for all security policies and tool configurations to ensure efficacy and prevent operational impact.
Create and maintain comprehensive documentation for all security policies, platform configurations, and operational procedures.

Benefits

Voluntary Medical, Dental, Vision, with Health Savings or Flexible Spending Plan options
Voluntary Life, Critical Illness, Accident, and Long Term Care insurance options
Group Term Life, Short-Term and Long-Term Disability is provided by Sentar to all qualifying employees
Generous 401(k) match
Competitive PTO plan that graduates quickly with years of service
Other leave programs; holiday schedule along with bereavement, maternity, jury and military duty
Mental health awareness programs
Tuition reimbursement
Professional development reimbursement
Recognition and Awards programs