The Cyber Endpoint Security Systems Engineer is responsible for the technical architecture, detection engineering, automated integration, platform modernization, and attack surface reduction across enterprise endpoint ecosystems. This role engineers and scales the endpoint security platform infrastructure (e.g., architecting resilient topologies, designing migrations to modern capabilities), develops detection-as-code capabilities, architects modern API integrations, and builds automated containment workflows to enhance defensive posture while minimizing operational overhead.
Responsibilities
Architect, test, and deploy resilient, high-availability enterprise endpoint security platform topologies (e.g., multi-tier Trellix ePO clustered databases, load-balanced Agent Handlers in DMZs and segmented cloud environments).
Lead strategic modernization initiatives, including re-architecting legacy on-premises endpoint security infrastructure.
Design and test migration paths for legacy point products.
Engineer multi-platform agent compatibility across enterprise operating systems, microservices, containerized workloads, and non-persistent VDI environments.
Formulate platform sizing, compute/storage scalability models, network bandwidth throttles, and disaster recovery architectures (RTO/RPO) for all endpoint security management systems.
Develop, test, and deploy custom behavioral detection rules (mapped directly to the MITRE ATT&CK framework) to catch novel adversary tradecraft, persistence mechanisms, and lateral movement.
Engineer host-level Attack Surface Reduction (ASR) baselines, including Windows Defender Application Control (WDAC), Trellix Application Control/Solidcore execution control baselines, Credential Guard, Exploit Guard, and Linux kernel security modules (SELinux/AppArmor).
Establish and govern the policy lifecycle for exclusions, behavioral suppression rules, and tamper-protection configurations before handing off operational execution to Administrators.
Design endpoint telemetry streaming pipelines to route high-fidelity endpoint events into SIEM and data lake environments in collaboration with the Cyber Analytics Systems Engineer.
Operationalize threat intelligence indicators and hunt findings produced by the Cyber Threat Hunter into durable, low-noise detection signatures and automated containment triggers.
Serve as the Tier 3 engineering escalation tier for deep OS compatibility bugs, kernel panic/BSOD triage, memory leaks, and complex driver interaction issues caused by defensive agents.
Author engineering specifications, platform migration guides, detection-as-code CI/CD pipelines, and structured operational runbooks transitioned to the Cyber Endpoint Security Systems Administrator.
Qualifications
Required Qualifications
Min 12 years with HS Diploma, 10 years AS/AA degree, 8 years with BS/BA degree
A DoW TS/SCI clearance is required
Security +
Must be DoW 8140 compliant under the Work Role Code 462 – Control Systems Security Specialist - Intermediate level or higher.
Highly Desired
Endpoint Security Platform Management
Threat Detection and Analysis
Security Automation and Scripting
SIEM Integration and Optimization
Cloud Security Principles
Network and System Fundamentals
Compliance and Security Frameworks
Problem Solving and Troubleshooting
Technical Documentation
Continuous Learning and Adaptability
Target Salary Range $86,000 - $138,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
Benefits Statement
Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at https://www.careers.peraton.com/benefits.
Application Statements The application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. By applying to this job, you are expressing interest in the role and the Company. During the review of your application, you may be required to participate in an on-camera interview, as well as participate in a process to verify your identity. Use of artificial intelligence (AI) tools of any kind during Peraton interviews is strictly prohibited unless the candidate has obtained prior written authorization. All interview responses must be the candidate’s own.
- EEO
- EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.
