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Salary
$135k – $145k per year
Location
In office (Saint Louis)
Seniority
Senior · 10+ years exp

Confirmed on the employer's own hiring board on Sep 28, 2026. First seen by Alion on Sep 28, 2026. D2 Consulting scores B on the Alion truth index.

Overview
Company
Impact
Profile match
D2 Consulting is a veteran-owned small business based in Arlington, Virginia, providing IT services to the US federal government, including cyber security, software development, systems and cloud engineering, enterprise operations and data analytics. It supports the US Intelligence Community, the Department of Defense and civilian agencies, with much of its current work at intelligence customer sites in Springfield, Virginia and St. Louis, Missouri. It hires cleared network, firewall, Linux, VMware and cloud engineers, system administrators, cyber security operations specialists, AI and full stack developers and database architects.

**ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED**

Are you passionate about cybersecurity and ready to make a mission impact? D2 is growing, and we’re looking for a Senior Endpoint Security Engineer to join our team-supporting the National Geospatial-Intelligence Agency (NGA) in delivering top-tier cyber defense and endpoint protection solutions.

This is one of several new roles created as part of the program expansion. It’s a great opportunity to work alongside talented professionals, leverage cutting-edge technologies, and elevate your cybersecurity career in a high-visibility, high-impact environment.

What You’ll Do:

  • Design, implement, and support endpoint security solutions to safeguard mission-critical networks and data

  • Collaborate with cross-functional teams to deploy and maintain enterprise security technologies

  • Apply deep technical knowledge to recommend hardware/software tools that improve endpoint security posture

  • Work with vendors and internal stakeholders to integrate, test, and enhance security platforms

  • Manage Linux-based security tools and perform advanced configuration and troubleshooting

  • Support incident response by analyzing and documenting security events and leading mitigation strategies

  • Ensure compliance with system standards and DoD cybersecurity frameworks

What You Bring:

Required:

  • Active TS/SCI clearance (must be willing to pass a post-hire Government polygraph)

  • DoD 8570 IAT Level II certification (e.g., Security+ CE)

  • Ability to obtain a CSSP Infrastructure Support certification within 6 months

  • Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)

  • 10+ years of experience in Cybersecurity, with a strong background in endpoint security engineering

  • Hands-on experience with tools such as HBSS, Carbon Black, Microsoft ATA, Tanium

  • Proficiency in Linux administration

  • Familiarity with DoD Architecture Framework and enterprise-scale cybersecurity practices

Nice to Have:

  • Active CSSP Infrastructure Support certification.

  • Linux certifications (e.g., RHCSA, CompTIA Linux+).

  • Experience with Windows AD architecture and VMware environments.

If you're ready to take your cybersecurity career to the next level, we’d love to hear from you. Let’s secure the future-together.

Additional Information

  • All your information will be kept confidential according to EEO guidelines.
  • Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary range for this position is typically $135-$145k. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range.
  • Highlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more!

D2 Consulting is committed to a merit-based recruitment process and encourages applications from all qualified individuals.  As a Veteran-Owned Small Business, we particularly welcome applications from veterans who have the requisite skills and experience.  Job applicants that are interested in one of our openings and may require a reasonable accommodation to participate in the job application or interview process, should contact us to request an accommodation.

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