--- title: 'Endpoint Security Engineer at GuidePoint Security' canonical: 'https://feeny.ai/job/endpoint-security-engineer-guidepoint-security-falls-church-rxysn68wsahw' type: 'job' last_seen: '2026-09-06' --- # Endpoint Security Engineer at GuidePoint Security - **Company:** GuidePoint Security - **Location:** Falls Church, VA - **Posted:** 2026-09-03 - **Last confirmed live:** 2026-09-06 - **Apply:** https://boards.greenhouse.io/guidepointsecurity/jobs/6181141004?gh_jid=6181141004 ## Job description GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation’s top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. Endpoint Security Engineer General Description We are looking for a skilled Endpoint Security Engineer to balance proactive protection with business continuity—partnering directly with end-users and application owners to tune policies and eliminate operational friction, while providing tier-3/tier-4 technical escalations to Security Operations Center (SOC) analysts and IT Operations staff during active investigations. The Endpoint Security Engineer, will design, deploy, and operationalize active, behavior-based endpoint detection and response (EDR/XDR) capabilities across one of the largest private operational fleets in North America. Protecting an enterprise comprising 600,000+ employees and 30,000+ physical sites, you will maintain rigorous security posture across traditional end-user computing (EUC) devices (laptop, desktop, mobile devices & retail terminals), on-premises physical & virtual servers & containerized workloads, and dynamic multi-cloud workloads (AWS, Azure, GCP). ## About the Federal Region GuidePoint Security is the trusted partner that defense and civilian government agencies rely on to lead their cybersecurity efforts and protect their organizations. We help solve their most complex security challenges, mature security architectures, and proactively reduce risk. Our purpose-built solutions ensure compliance, safeguard critical assets, and align security with organizational objectives. Backed by deep expertise, strong partnerships, and advanced technologies, we deliver scalable, adaptive capabilities that evolve with the threat landscape so Federal agencies can lead with confidence and protect what’s next. Roles and Responsibilities Fleet-Wide Behavioral Defense & Control Engineering: - Engineer, deploy, and maintain Next-Gen Antivirus (NGAV) and Endpoint Detection & Response (EDR/XDR) agents (e.g., CrowdStrike Falcon, Microsoft Defender for Endpoint, SentinelOne) across hundreds of thousands of heterogeneous endpoints. - Implement active behavioral protections against zero-day malware, living-off-the-land binaries (LotLBs), fileless execution, and credential dumping. Application Owner & End-User Engagement (Business Impact Management): - Serve as the primary technical partner to application owners and business units, establishing baseline behavior profiles to minimize false positives, performance degradation, or operational downtime across critical retail, logistics, and supply chain applications. - Manage allowlisting, exception workflows, and phased ring deployments (canary/pilot/production) to ensure silent, high-efficacy protection without disrupting day-to-day warehouse or logistics operations. SOC & IT Operations Event Investigation Support: - Act as endpoint security escalation lead for SOC analysts during high-severity threat detection and response events. - Act as endpoint operations escalation lead for IT administrators during high-impact event investigation and remediation efforts. - Perform advanced host forensics, process-tree reconstruction, memory analysis, and script-based live remediation (e.g., host isolation, automated artifact collection, registry rollbacks). Hybrid & Multi-Cloud Workload Protection: - Extend endpoint security standards across private data center virtualization layers (VMware/Nutanix) and ephemeral multi-cloud infrastructure (EC2, Azure VMs, Compute Engine, containerized hosts). Control Efficacy & Continuous Validation: - Continuously measure and test security control efficacy using automated attack simulation (BAS) tools and Purple Team exercises. - Track and report on agent health, tamper-resistance, telemetry pipeline integrity, and coverage metrics aligned with enterprise asset management systems. Required Experience and Education: - 7+ years of progressive experience in technical cybersecurity engineering or infrastructure security roles. - At least 3–5 years directly engineering and administering enterprise-grade EDR/XDR platforms across 50,000+ endpoints in a distributed hybrid environment. - Demonstrated track record supporting active SOC investigations and collaborating cross-functionally with system owners in large-scale enterprise environments. - Bachelor’s degree in computer science, Cybersecurity, Information Systems. If the individual's degree is not in the applicable field, then four additional years of related experience is required. - EDR/XDR Engineering: Expert-level proficiency administering enterprise-scale endpoint platforms across Windows, macOS, Linux distributions, and container runtime environments. - Behavioral Analysis & Threat Hunting: Deep mastery of process lineage, behavioral IOAs (Indicators of Attack), Sysmon telemetry, and detection authoring using query languages such as SQL, KQL (Kusto Query Language), Splunk SPL, or YARA. - Hybrid Infrastructure & OS Internals: Deep understanding of Windows/Linux kernel architectures, API hooking, hypervisor isolation, and multi-cloud workload identity integrations. - Automation & Scripting: Strong programming/scripting abilities in PowerShell, Python, or Bash to orchestrate fleet-wide remediations and automate policy compliance at scale. Artificial Intelligence & Machine Learning: Fluency applying appropriate AI/ML technologies and analytics platforms (Splunk, Databricks, Elastic) to streamline and/or automate activities including but not limited to research, developing documentation, and supporting development of executive communications. - Fluency applying appropriate AI/ML technologies to automate security activities to improve timeliness or full automation of event response activities. - Stakeholder Empathy & Impact Analysis: Proven ability to balance stringent security controls with business operational velocity, ensuring minimal disruption to end-user productivity and mission-critical COTS/proprietary software. - Crisis Leadership & Composure: Capable of methodically triaging active enterprise threats under pressure and articulating complex host-based attacks to executive leadership. - Operational Scale Management: Mindset geared toward "Infrastructure-as-Code" and policy automation rather than manual device-by-device intervention. - Embraces emerging technologies, including AI tools, to work smarter, solve problems, and drive better business outcomes. ## Preferred Experience and Education - GIAC Certified Enterprise Defender (GCED), GIAC Certified Incident Handler (GCIH), or GCFA (Forensic Analyst). - CISSP (Certified Information Systems Security Professional). - Specialized Vendor Engineering Credentials (e.g., CrowdStrike Certified Falcon Administrator/Hunter, Microsoft Certified: Security Operations Analyst Associate / SC-200). Additional Provisions - Pass a client mandated clearance process to include drug screening, criminal history check and credit check. - Once candidate’s resume is approved and interview passed, the agency is responsible for providing drug screening. Failure to submit the drug screening results will delay the security clearance process. - If a candidate is given an interim clearance, continuation of employment is then based on the candidate receiving a sensitive clearance. - All candidates must be a US Citizen or permanent status Green Card holder. - Cannot have more than 6 months travel outside the United States within the last five years. Military Service excluded. (Exception does not include military family members.) - All overtime must be pre-approved in writing by the client manager or his/her designated representative. - Agency will not be reimbursed for overtime charges without previous written authorization. Authorized overtime will be reimbursed at straight time. - The enforced dress code is business casual, i.e., collared shirt with slacks for men, no skirts above the knee for women. Travel Requirements - Work will be remote with candidates located in Morrisville, NC; Falls Church, VA; or Eagan, MN given preference Physical Requirements - Sedentary work - Substantial movement of the wrists, hands, and/or fingers for a minimum of 8 hours a day - Required to have close visual acuity to view computer terminal and/or extensive reading for a minimum of 8 hours a day - If you have additional physical requirements/changes, please discuss with HR first “Applicants selected will be subject to a security investigation and must meet eligibility requirements for access to classified information.” We use Greenhouse Software as our applicant tracking system and Zoom Scheduler for HR screen request scheduling. At times, your email may block our communication with you. Please be sure to check your SPAM folder so that you don't miss updates on your application. Why GuidePoint? GuidePoint Security is a rapidly growing, profitable, privately-held value added reseller that focuses exclusively on Information Security. Since its inception in 2011, GuidePoint has grown to over 1,300 employees, established strategic partnerships with leading security vendors, and serves as a trusted advisor to more than 6,200 customers. Firmly-defined core values drive all aspects of the business, which have been paramount to the company’s success and establishment of an enjoyable workplace atmosphere. At GuidePoint, your colleagues are knowledgeable, skilled, and experienced and will seek to collaborate and provide mentorship and guidance at every opportunity. This is a unique and rare opportunity to grow your career along with one of the fastest growing companies in the nation. Some added perks…. - Remote workforce primarily (U.S. based only, some travel may be required for certain positions, working on-site may be required for Federal positions) - Group Medical Insurance options: Zero Deductible PPO Plan (GuidePoint pays 90% of the premium for employees and 70% for family plans (spouse/children/family) or High Deductible Health Plan with HSA (GuidePoint pays 100% of the employees premiums and 75% for family plans (spouse/children/family). If you choose the High Deductible / HSA plan, GPS will contribute in 4 equal quarterly installments: ($850 per EE annually / $1750 per family annually (includes spouse/children/family options) - Group Dental Insurance: GuidePoint pays 100% of the premium for employees and 75% of family plans - 12 corporate holidays and a Flexible Time Off (FTO) program - Healthy mobile phone and home internet allowance - Eligibility for retirement plan after 2 months at open enrollment - Pet Benefit Option ## About GuidePoint Security ## Company Overview - **One-liner**: GuidePoint Security is a trusted cybersecurity advisor and services partner that helps organizations navigate complex security challenges, minimize risk, and ensure compliance. - **Entity Type**: Private - **Headquarters**: Reston, Virginia, USA (new global headquarters at 1900 Reston Metro Plaza, opened June 2025) - **Founded**: 2011 - **Founders**: Not publicly available ## Core Business - **Primary Industry**: Cybersecurity consulting and services - **Target Customers**: B2B, serving enterprise organizations (40% of the Fortune 500), all U.S. cabinet-level agencies, and organizations of all sizes across every industry - **Mission Statement**: "Stronger Together. Protecting What's Next." — The company helps organizations solve their most complex security challenges, align security with business objectives, mature their security posture, minimize risk, and ensure compliance. ## Products & Services GuidePoint offers a comprehensive portfolio of cybersecurity services organized into key practice areas: - **[Advisory & Strategy]**: Security program assessments, policy development, risk management frameworks, executive advisory, and cybersecurity maturity strategies. - **[Governance, Risk & Compliance (GRC)]**: Aligning information security with business goals, managing risk, and ensuring compliance with industry standards. - **[Identity & Access Management (IAM)]**: Services for managing and securing user identities and access. - **[Network & Infrastructure Security]**: Implementation, optimization, and management of network security architectures (e.g., Zscaler, Palo Alto, Gigamon). - **[Application Security]**: Security integration into the software development lifecycle, including penetration testing and code review. - **[Data Security & Privacy]**: Identifying, classifying, and securing sensitive information across complex environments; AI Governance. - **[Incident Response & Threat Intelligence]**: Comprehensive, 24/7 incident response (IR) and tailored threat intelligence (TI) services to prepare, detect, contain, and recover from cyber threats. - **[Vulnerability Management & Penetration Testing]**: Services to identify, prioritize, and remediate security gaps. - **[Artificial Intelligence (AI) Security]**: Technical and advisory services to securely incorporate AI, use AI for threat hunting, and defend against AI-enhanced threats. - **[Security Operations Center (SOC) Services]**: Managed security monitoring and response. - **[Staff Augmentation]**: Providing expert cybersecurity practitioners on demand. - **[Managed Security Services]**: Ongoing management and monitoring of security technologies. ## Market Standing - **Valuation**: Not publicly available (Private company) - **Key Metric**: Total Funding — Not publicly available. The company has experienced "record growth" and is backed by a team of more than 1,000 employees. - **Notable Investors/Partners**: Not publicly available. The company partners with over 800 technology vendors, including major names like Palo Alto Networks, Zscaler, Splunk, Microsoft, Okta, and CyberArk. - **Growth Signals**: - Surpassed 1,000 employees (as of June 2025). - Achieved double-digit revenue gains. - Opened three new offices in 2025: new global HQ in Reston, VA; plus offices in Norwood, OH and Frisco, TX. - Named to Inc.'s 2026 Best Workplaces list (sixth time honored). - Serves more than 5,600 organizations, including 40% of the Fortune 500 and all U.S. cabinet-level agencies. ## Competitive Advantages - **Vendor-Neutral Expertise**: GuidePoint is solely focused on cybersecurity and does not sell its own products, acting as an objective, trusted advisor. They vet 800+ technology vendors to recommend the best-fit solutions. - **Deep Technical Certification**: The team is comprised of highly certified practitioners (CISSP, CISM, OSCP, GIAC, etc.) with experience from Fortune 100 companies, the Department of Defense, and U.S. intelligence agencies. - **Personal Touch, National Scale**: Offers localized, white-glove service with the resources and expertise of a national firm. - **Comprehensive Service Portfolio**: Covers the entire cybersecurity lifecycle from strategy and risk management to implementation, managed services, and incident response. ## Strategic Focus - **Continued Expansion**: Opening new offices and growing the workforce, particularly in key U.S. regions. - **Innovation in Emerging Tech**: Introducing new service offerings in cloud security, Identity and Access Management, and AI/ML risk. - **Deepening Market Leadership**: Scaling across both public and private sectors, with a focus on federal government and large enterprise clients. - **Talent Development**: Investing in GuidePoint Security University (GPSU) to train the next generation of cybersecurity professionals through a flexible internship program. ## Why Work Here - **Award-Winning Culture**: Named to Inc.'s 2026 Best Workplaces list (sixth time). Recognized for a "vibrant workplace culture" by Inc. Magazine and Washington Business Journal. - **People-First Values**: Culture is rooted in trust, accountability, and a commitment to "doing what’s right." Features an employee-led "Pay it Forward" peer-to-peer recognition program. - **Remote & Flexible Work**: Offers excellent work-life balance via telework and flextime. Many roles are remote within the U.S. (with regional preferences for some positions). - **Comprehensive Benefits**: Fully covers employee premiums on the base health plan, offers generous support for dependents, a generous mobile phone and home internet allowance, and a competitive 401k retirement plan. - **Development & Growth**: Access to GuidePoint Security University (GPSU) for internships and continuous learning from industry-leading practitioners. The company promotes from within and offers a clear path for career advancement in a high-growth field. - **Mission-Driven Work**: Employees work on critical cybersecurity challenges for top-tier clients, including Fortune 500 companies and U.S. government agencies, providing a strong sense of purpose. ## Sources 1. [GuidePoint Security Careers Page](https://www.guidepointsecurity.com/careers/) 2. [GuidePoint Security - Why GuidePoint](https://www.guidepointsecurity.com/why-guidepoint/) 3. [GuidePoint Security Named to Inc.’s 2026 Best Workplaces List](https://www.guidepointsecurity.com/newsroom/guidepoint-security-named-to-inc-s-2026-best-workplaces-list/) 4. [GuidePoint Security Opens New Global Headquarters Amid Continued Growth](https://www.guidepointsecurity.com/newsroom/guidepoint-security-opens-new-global-headquarters-amid-continued-growth/) 5. [GuidePoint Security - LinkedIn](https://www.linkedin.com/company/guidepointsec) ## Other roles at GuidePoint Security - [Cybersecurity Solutions Architect/Engineer](https://feeny.ai/job/cybersecurity-solutions-architect-engineer-guidepoint-security-falls-church-pche5q7eg1bh) — Falls Church, VA - [Illumio Zero Trust Segmentation Platform Engineer - TS/SCI CI Poly](https://feeny.ai/job/illumio-zero-trust-segmentation-platform-engineer-ts-sci-ci-poly-guidepoint-p7ttyqn5mjtt) — National Capital Region - [Senior Technical Project Manager - Active TS/SCI](https://feeny.ai/job/senior-technical-project-manager-active-ts-sci-guidepoint-security-national-ncntkbcx5r31) — National Capitol Region - [Senior Sales Operations Specialist (North Central)](https://feeny.ai/job/senior-sales-operations-specialist-north-central-guidepoint-security-remote-nv8xxkb5ktez) - [Senior PSG Specialist](https://feeny.ai/job/senior-psg-specialist-guidepoint-security-remote-ja1dp2ecgg5s) - [GPSU Cybersecurity Spring Internship](https://feeny.ai/job/gpsu-cybersecurity-spring-internship-guidepoint-security-remote-hf25tget31s6) - [Innovation Engineer- Remote (Anywhere in the U.S.)](https://feeny.ai/job/innovation-engineer-remote-anywhere-in-the-u-s-guidepoint-security-remote-28s108z9263r) - [SecOps Engineer - North Central region (Remote in the U.S.)](https://feeny.ai/job/secops-engineer-north-central-region-remote-in-the-u-s-guidepoint-security-17db4c5pqz4b) - [Account Executive (Utah)](https://feeny.ai/job/account-executive-utah-guidepoint-security-utah-vcg68kpagbvn) — Utah - [Account Executive (Southern CA)](https://feeny.ai/job/account-executive-southern-ca-guidepoint-security-socal-az3xyfc5z01d) — SoCal