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Nooks

Platform enabling classified government–private collaboration

Senior Classified WAN Manager

Full-TimeUpdated on 10/2/2026
$170k - $200k/yr
Senior, Expert
Colorado Springs, CO, USA
HybridTravel up to 35% to classified sites and customer locations is required.
No H1B Sponsorship
US Citizenship, US Top Secret Clearance Required

About the job

Requirements
  • An active Top Secret//SCI clearance is required.
  • Extensive experience managing classified networks for DCSA, DIA, NRO, or other large-scale government entities, including senior or lead responsibility for classified WAN or enterprise network environments.
  • A strong technical or cyber background, with prior experience as a System Administrator, Network Engineer, or Information Systems Security Manager and a track record of growing into senior technical leadership.
  • Demonstrated experience building and leading teams, including hiring and developing staff and ideally managing other leads or managers.
  • Proven vendor and contract management experience, including selecting and negotiating with carriers, integrators, and technology vendors and holding them accountable to service-level agreements.
  • Strong working knowledge of NIST SP 800-53 and the Risk Management Framework.
  • Deep familiarity with networking principles and technologies as applied in classified environments.
  • Hands-on experience with Windows workstations and servers, VMware, Cisco switches, routers and firewalls, Trellix, PDQ, and WSUS.
  • Proven leadership, with the ability to set strategy, make decisions, and hold teams and vendors accountable.
  • Experience managing programs and coordinating remote teams across multiple sites is required.
  • Candidates must be U.S. citizens and eligible to work in the United States.
  • Ability to travel up to 35% to Nooks classified sites and customer locations.
Responsibilities
  • Own all classified WAN activities across Nooks by setting the technical direction, standards, and operating model for how classified networks are delivered, operated, and scaled.
  • Oversee the day-to-day management, maintenance, health, and performance of the classified WAN environment across every accredited site.
  • Sustain a positive Authority to Operate posture across classified systems through continuous monitoring, timely remediation of findings, and readiness for reaccreditation.
  • Maintain continuous compliance with NIST SP 800-53 controls and the Risk Management Framework, partnering with security stakeholders on assessment, authorization, and Plan of Action and Milestones management.
  • Monitor the classified environment for risk, mitigate issues before they escalate, and enforce configuration and control baselines aligned to government requirements.
  • Maintain audit-ready documentation of network architecture, configurations, and compliance artifacts to support continuity, inspections, and scale.
  • Establish, own, and grow relationships with carriers, integrators, hardware and software vendors, and service providers supporting the classified WAN.
  • Lead vendor selection, evaluation, and negotiation; manage contracts, service-level agreements, renewals, and performance against cost, schedule, and mission outcomes.
  • Serve as the escalation point for vendor-impacting issues and drive them to resolution while protecting the security and compliance posture of the environment.
  • Keep classified network projects on schedule and within budget, managing scope, milestones, and dependencies from planning through delivery.
  • Lead and coordinate geographically distributed engineers and support staff across multiple sites.
  • Serve as a primary point of contact for government sponsors and accrediting authorities, translating requirements into executable technical plans.
  • Report status, budget, and compliance to leadership and stakeholders, surfacing risks early with clear paths to resolution.
  • Provide senior technical leadership across the classified network stack, guiding architecture, design, troubleshooting, and operational decisions.
  • Build and scale the classified WAN organization by leading projects and individual contributors, hiring, developing leads, and growing into managing managers as multiple WANs are supported.
  • Lead, mentor, and develop technical staff, setting clear ownership and building a culture of service delivery.

About the company

Nooks offers a platform-as-a-service that enables government agencies and private defense/space firms to collaborate on classified projects. It accelerates tech adoption in national security by handling facility clearance sponsorship and personnel clearances, simplifying compliance and onboarding. The platform provides secure workflows and vendor-access controls, expanding options for vendors while managing the complexities of clearance processes. Its veteran-led team focuses on moving faster, reducing costs, and letting clients concentrate on their core work within the government–private sector ecosystem.

Company Size

51-200

Company Stage

Series A

Total Funding

$32.7M

Headquarters

Crystal City, Virginia

Founded

2021

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Simplify's Take

What believers are saying

  • DIU funding adds six new sites and FSO-as-a-Service for 100 portfolio companies.
  • Managed security services solve clearance bottlenecks faster for defense startups and primes.
  • 2025 Series A backing from Lockheed Martin and SAIC validates demand and channels.

What critics are saying

  • The $146.8 million headline is a ceiling, not guaranteed revenue, limiting visibility.
  • DIU dependence concentrates revenue around one federal buyer and procurement cycle.
  • Sean Blackman stepped down in 2026; leadership turnover during expansion raises execution risk.

What makes Nooks unique

  • Nooks won a four-year DIU Bridge Program contract on September 10, 2026.
  • Its CIaaS model replaces SCIF construction with subscription access to accredited classified facilities.
  • Nooks now spans ten markets, including Arlington, Boston, Chicago, Honolulu, and Huntsville.

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Growth & Insights and Company News

Headcount

6 month growth

↑ 5%

1 year growth

↑ 12%

2 year growth

↑ 6%
PR Newswire
Sep 10th, 2026
Nooks wins $146.8M Defense Innovation Unit contract to expand classified infrastructure nationwide

Nooks has been awarded a four-year contract worth up to $146.8 million by the Defense Innovation Unit to expand its Classified Infrastructure-as-a-Service nationwide. The contract supports DIU's Bridge Program, addressing barriers commercial companies face in accessing classified spaces and clearances. The award will fund new Nooks sites in six major markets: Austin, Boston, Chicago, New York, San Francisco Bay Area, and Honolulu. These additions will expand Nooks' network to ten locations, including existing sites in Arlington, Colorado Springs, El Segundo, and Huntsville. Nooks' model replaces lengthy construction timelines with subscription-based access to accredited facilities, workstations, and secure networks. The contract also provides FSO-as-a-Service for up to 100 DIU portfolio companies, offering fractional Facility Security Officer expertise to support clearance processes and compliance. Founded in 2021, Nooks pioneered the CIaaS model to help defence technology companies begin classified work faster.

FinSMEs
Jun 9th, 2025
Nooks Closes $25M Series A Funding

Nooks, a Crystal City, VA-based classified-infrastructure-as-a-service (CIaaS) model company for workspaces, raised $25M in Series A funding.

Nooks
Jun 9th, 2025
Nooks Closes $25M Series A Funding Round with Unmatched Team of Industry Leaders

Nooks raises $25M Series A to expand its subscription-access classified workspaces. Backed by Zigg Capital, Upper90, SAIC, and Lockheed Martin, Nooks is redefining access to secure, flexible classified workspaces for government and defense.

MB News
Jun 9th, 2025
Nooks Raises $25M in Series A Funding

Nooks has closed a $25M Series A funding round, partnering with Zigg Capital, Upper90, SAIC, and Lockheed Martin. The funding will enhance Nooks' Classified-Infrastructure-as-a-Service (CIaaS) model, aiming to improve secure collaboration for government and industry. The investment will support Nooks' growth in key markets and its integration of advanced technologies, with a focus on transforming classified infrastructure access.

Forbes
Aug 3rd, 2023
Small Companies Can’T Access Classified Work Without A Secure Space To Work In

A modular SCIF facility designed by Maryland-based builder, Modular Genius. Modular GeniusIf your small defense business has desirable technology that the government considers classified, you’ll need a secure workspace before you can secure government work. It’s a Catch-22 that Congress wants to alleviate.The 2024 National Defense Authorization Act includes language from both the House and Senate meant to open up existing classified work-spaces to small businesses.Building or gaining access to a government-approved secure workspace is a costly burden that adds to the already thorny problems defense startups face in getting security clearances for their employees and in getting their companies as a whole “covered” or cleared to work on classified projects.Such hurdles curb or prevent innovative, potentially war-winning technologies and ideas from being embraced and applied by the Pentagon says Andrew “Scar” Van Timmeren, vice president of government solutions for Blue Force Technologies, a small North Carolina-based business which recently secured a contract to build prototype unmanned adversary training aircraft for the Air Force.A former USAF F-22 pilot, Van Timmeren has seen the problem surface repeatedly among the cohort of defense startups traveling in the same circles as Blue Force, shutting them out of potentially meaningful contracts and contributions to national security.“It’s remarkably easy for continued contracts to go to incumbents within the cleared [classified] space because of the time and effort it takes to increase the number of new businesses that have access to cleared [workspace].”Van Timmeren cites an example wherein defense program managers are evaluating candidates to perform radar cross section survivability analysis of an aircraft. There’s already a cleared company with its own approved secure workspace. Another new firm may want to enter into that mix. But for DoD, “the easy button is to just go to the incumbent which may not be a small business.”Setting up a secure workspace isn’t easy