---
title: 'Assistant Facility Security Officer at Onebrief'
canonical: 'https://feeny.ai/job/assistant-facility-security-officer-onebrief-united-states-hartsj3kxxbz'
type: 'job'
last_seen: '2026-09-18'
---

# Assistant Facility Security Officer at Onebrief

- **Company:** Onebrief
- **Location:** United States
- **Compensation:** $100k–$123k
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-16
- **Last confirmed live:** 2026-09-18
- **Apply:** https://jobs.ashbyhq.com/onebrief/e6789ac8-e677-4023-bb24-17dfab488ac7

## Job description

Consequential Work. Dedicated People.

## About Onebrief

Onebrief builds collaboration and AI-powered workflow software for military planning and operational coordination. Military planning is complex by nature, requiring teams to coordinate information, people, and decisions across systems and locations. Onebrief brings planning, collaboration, simulation, and AI into one connected environment, helping teams test strategies, adapt to changing conditions, and make decisions with greater clarity when the stakes are real. We are a distributed team of builders from military, operational, and technology backgrounds who care deeply about improving how important work gets done. Some team members work remotely, while others work directly alongside customers in operational environments around the world. Founded in 2019, Onebrief is backed by leading investors including General Catalyst, Battery Ventures, Insight Partners, Sapphire Ventures, and Human Capital. Valued at more than $2 billion, we continue to invest in product innovation, AI capabilities, and team growth.

## Why This Role Exists

As our business and cleared workforce grow, so does the complexity of supporting a strong, responsive, and scalable industrial security program. We’re adding an Assistant Facility Security Officer (AFSO) to help us meet that growth; to ensure our people are supported, our day-to-day security operations run smoothly, and the details that keep our program running are handled accurately and reliably. Working closely with the FSO, you’ll help turn security requirements into clear, reliable, and efficient processes. You’ll keep important workflows moving, make it easier for employees to navigate security requirements, and look for opportunities to improve how we work as we scale. Ultimately, this role exists to help us build a security program that does more than maintain compliance: one that enables the business, serves our people, and earns trust through operational excellence.

## What You'll Do

- Keep the day-to-day administrative operations of our industrial security program organized, accurate, and moving forward, while supporting the FSO in maintaining the company’s National Industrial Security Program (NISP).
- Coordinate personnel security (PERSEC) processes, including clearance processing, onboarding and offboarding of cleared personnel, briefings and debriefings, visit requests, and personnel security records.
- Maintain accurate, complete, and well-organized security records, files, trackers, procedures, and required documentation.
- Administer security activities and maintain accurate information across government systems such as DISS, NISS, NBIS, JPC, and ACCS, as applicable.
- Serve as a responsive and trusted resource for employees navigating clearance, access, and security-related questions.
- Support preparation for DCSA security reviews and assessments, ensuring documentation is organized, current, and audit-ready and tracking corrective actions through completion.
- Support the company’s Insider Threat Program and coordinate with relevant stakeholders on required reporting and security matters.
- Identify opportunities to simplify or automate repetitive work and create systems that make our security operations more efficient and scalable.
- Perform FSO responsibilities when delegated or when serving as backup to the FSO.

## Minimum Qualifications

- Bachelor’s degree or equivalent professional experience.
- Exceptional organizational skills and attention to detail, with a track record of managing complex administrative work accurately and reliably.
- Strong ownership and follow-through; able to keep track of commitments, anticipate what needs attention, and consistently close the loop.
- Ability to manage multiple priorities, deadlines, and detail-sensitive workflows without sacrificing accuracy.
- A demonstrated ability to learn new systems, processes, and subject matter quickly and apply that knowledge effectively.
- Strong written and verbal communication skills, with the ability to make complex information clear and approachable for different audiences.
- A service-oriented mindset and genuine interest in helping others navigate unfamiliar or complex processes.
- Sound judgment and discretion when handling sensitive or confidential information.
- Ability to obtain and maintain a U.S. Government security clearance (U.S. citizenship required).

## Preferred Qualifications

- Experience in an administrative, operations, program coordination, or similarly detail-intensive role in a fast-paced environment.
- Experience building or improving administrative systems, workflows, documentation, or processes.
- Experience quickly learning and becoming proficient in new software or systems.
- Previous experience working in a fast-paced or startup environment.
- Active U.S. Government security clearance.
- Previous experience supporting an FSO, AFSO, CPSO, or industrial security program within a cleared contractor.
- Completion of relevant CDSE training or FSO Program Management certification.
- Experience working in technology, defense, aerospace, or government contracting.

Indicators of Success

- Employees feel supported. You provide timely, clear, and practical guidance that makes security processes easier to understand and navigate.
- Nothing falls through the cracks. You have strong organizational systems for managing deadlines, follow-ups, records, and competing priorities.
- The details are handled. Clearance, access, visit, and other day-to-day security processes continue to run smoothly, accurately, and reliably.
- We’re always audit-ready. Security records and documentation are accurate, organized, current, and easy to retrieve.
- You become a trusted resource. You learn the security program deeply and share that knowledge in a way that is practical, approachable, and useful to others.
- The program scales with us. You help build repeatable processes, strong organizational systems, and institutional knowledge that support the company as our cleared workforce and security needs grow.

Notice to Third Party Recruitment Agencies Please note that Onebrief does not accept unsolicited resumes from recruiters or employment agencies. In the absence of an executed Recruitment Services Agreement, there will be no obligation to any referral compensation or recruiter fee. In the event a recruiter or agency submits a resume or candidate without an agreement Onebrief explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. Any unsolicited resumes, including those submitted to hiring managers, shall be deemed the property of Onebrief.

## About Onebrief

## Company Overview
- **One-liner**: Onebrief provides an AI-powered, collaborative operating system for military command, planning, and decision-making.
- **Entity Type**: Private (Series D)
- **Headquarters**: Honolulu, Hawaii, USA
- **Founded**: 2019
- **Founders**: Grant Demaree (CEO)

## Core Business
- **Primary Industry**: Defense technology / Military software
- **Target Customers**: B2G (Business to Government) – specifically the U.S. Department of Defense, including the Army, Navy, Air Force, Marine Corps, Space Force, and Special Operations Forces. Also serves NATO and allied partners.
- **Mission Statement**: To enable a "superhuman command" that makes brilliant decisions, scales output, and is optimally efficient, transforming how military commands operate and make decisions.

## Products & Services
- **Onebrief Platform**: An AI-enabled, web-based operating system for modern military command. It fuses agentic workflows, decision intelligence, and collaborative tools into a unified, resilient platform. It is live on all major military networks (NIPR, SIPR, JWICS) and integrates with existing partner systems. Key capabilities include:
    - **Agentic Workflows**: AI-enabled capabilities to automate routine tasks and accelerate planning.
    - **Live, Synchronized Data**: Real-time data syncing across all products and users.
    - **Holistic Integrations**: Seamless interoperability with existing military systems and partner networks.
    - **Resilient Foundations**: Engineered to stay live, performant, and secure in all conditions, including wartime reality.

## Market Standing
- **Valuation**: $2.15 billion (as of Series D in early 2026) [cbinsights.com](https://www.cbinsights.com/company/onebrief)
- **Total Funding**: $162.89M (including a $200M Series D round) [cbinsights.com](https://www.cbinsights.com/company/onebrief)
- **Key Metric**: Total funding of $162.89M. The company is integral to three of the four largest operational plans (OPLANs) globally. [onebrief.com](https://www.onebrief.com/)
- **Notable Investors**: Battery Ventures, General Catalyst, Insight Partners, Salesforce Ventures, Sapphire Ventures, and 14+ others. [cbinsights.com](https://www.cbinsights.com/company/onebrief)
- **Growth Signals**: Raised a $200M Series D at a $2.15B valuation in early 2026. Acquired Battle Road Digital. Named one of Fast Company's Most Innovative Companies for 2026. Reports a 70% reduction in planning cycle time and a 50% increase in information accuracy for users. [onebrief.com](https://www.onebrief.com/)

## Competitive Advantages
- **Deep Domain Expertise**: Built by a team with extensive military experience (45% of employees are veterans from the Joint Staff, Service Components, NATO, and Special Operations). This gives them unparalleled insight into the specific pain points of military planning. [onebrief.com](https://www.onebrief.com/careers)
- **Mission-Critical Integration**: The only performant software solution specifically designed for this use case that is live and integrated on all major classified and unclassified networks (NIPR, SIPR, JWICS). [onebrief.com](https://www.onebrief.com/)
- **Proven Impact**: Documented results include a 70% reduction in planning cycle time, a 50% increase in information accuracy, and elimination of ~20 hours of weekly redundant work per user. [onebrief.com](https://www.onebrief.com/)
- **High-Level Endorsement**: Integral to three of the four largest operational plans (OPLANs) globally and endorsed by top military leaders. [onebrief.com](https://www.onebrief.com/)

## Strategic Focus
- **Scaling the Platform**: Rapidly scaling the organization and its platform to serve more commands and allied partners.
- **AI-Enabled Command**: Deepening AI and agentic workflow capabilities to further automate and accelerate military planning and decision-making.
- **Expanding Reach**: Growing its footprint across the DoD and allied nations, as evidenced by the acquisition of Battle Road Digital and partnerships like the one with Second Front Systems for rapid deployment. [cbinsights.com](https://www.cbinsights.com/company/onebrief)

## Why Work Here
- **Mission-Driven Impact**: Employees directly contribute to solutions that support national security and the effectiveness of military operations. The work is described as "solving problems that matter" with a tangible impact on mission-critical operations. [onebrief.com](https://www.onebrief.com/careers)
- **High Ownership & Autonomy**: The company empowers employees with a high degree of ownership and autonomy, allowing them to lead projects and shape the platform's future. [onebrief.com](https://www.onebrief.com/careers)
- **Rapid Growth & Career Development**: As a rapidly scaling company, employees have a unique opportunity to influence the company's direction and unlock significant career advancement. [onebrief.com](https://www.onebrief.com/careers)
- **Elite Team Composition**: The team includes veterans from elite military units (Joint Staff, Delta Force, 75th Ranger Regiment) and technologists from top tech companies (Palantir, Google, Amazon, Microsoft). This creates a unique, high-performance culture. [onebrief.com](https://www.onebrief.com/careers)
- **Veteran-Friendly Culture**: 45% of employees are veterans, and the company is explicitly designed to be a mission-driven environment that aligns with the values of service, dedication, and teamwork. [onebrief.com](https://www.onebrief.com/careers)
- **Work Policy**: Not explicitly stated, but the platform is built for distributed collaboration, suggesting a flexible or remote-friendly environment is likely.

## Sources
1. [onebrief.com](https://www.onebrief.com/)
2. [onebrief.com/careers](https://www.onebrief.com/careers)
3. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/onebrief)
4. [onebrief.com/about](https://www.onebrief.com/about)
5. [cbinsights.com](https://www.cbinsights.com/company/onebrief)

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