---
title: 'Junior Technical Writer at Core One'
canonical: 'https://feeny.ai/job/junior-technical-writer-core-one-mclean-arw0seg3k8xw'
type: 'job'
last_seen: '2026-09-04'
---

# Junior Technical Writer at Core One

- **Company:** Core One
- **Location:** Mclean, VA
- **Posted:** 2026-03-27
- **Last confirmed live:** 2026-09-04
- **Apply:** https://job-boards.greenhouse.io/coreone/jobs/8483176002

## Job description

Join our team at Core One! Our mission is to be at the forefront of devising analytical, operational and technical solutions to our Nation's most complex national security challenges. In order to achieve our mission, Core One values people first! We are committed to recruiting, nurturing, and retaining top talent! We offer a competitive total compensation package that sets us apart from our competition. Core One is a team-oriented, dynamic, and growing company that values exceptional performance!

Clearance Required: Active TS/SCI with Polygraph

Summary

We are seeking a Junior Technical Writer to develop, manage, and govern high-quality technical documentation across a complex, enterprise technology ecosystem. This role supports front-end, back-end, database, and security teams, ensuring all deliverables meet federal compliance (FedRAMP / RMF), audit readiness, and operational excellence standards.

The ideal candidate brings expertise in technical documentation, structured authoring, compliance artifacts (SSP, POA&M), and engineering documentation frameworks, with the ability to translate complex technical concepts into clear, actionable content for diverse stakeholders.

## Key Responsibilities

- Support the development and maintain compliance artifacts: System Security Plans, Security Assessment Reports, and Plan of Action & Milestones
- Support alignment with NIST SP 800-53 / RMF (800-37), FedRAMP Moderate/High baselines, and ICD 503
- Support ATO lifecycle documentation and audit readiness
- Support and ensure the production of high-quality developer-facing materials: API references, Integration guides, and SDK documentation
- Collaborate with Back-End Developers to ensure accurate and up-to-date API contracts
- Document Data dictionaries and metadata, Database schemas and relationships, and Data governance policies
- Work with Database Engineers to ensure data lineage, classification, and handling requirements are clearly documented
- Develop and maintain Standard Operating Procedures, change Enablement documentation and incident response runbooks in collaboration with respective Team SME's
- Align documentation with ITIL processes in coordination with Team SME's
- Establish and enforce documentation standards and templates, version control and document lifecycle management and implement structured authoring and reuse strategies
- Serve as the central documentation liaison across Engineering teams, Security and compliance teams and Product and program leadership
- Utilize documentation tools and platforms: Confluence, SharePoint, Git-based documentation (Markdown) and API tools (Swagger/OpenAPI)
- Support automation of documentation workflows within CI/CD pipelines
- Support the preparation and manage documentation for FedRAMP audits and 3PAO assessments and Internal compliance reviews
- Ensure and support documentations are complete, accurate, and traceable and aligned with system configurations and controls
- Mentor junior writers or contributors, promote a culture of documentation as a critical engineering discipline
- Continuously improve documentation quality and usability

## Qualifications

- Active TS/SCI with Polygraph
- Bachelor's degree or higher in Technical Writing, English, IT or related field
- 1+ years of technical writing experience in IT or cybersecurity environments
- Proven ability to document Complex systems and architectures (APIs, data model, etc.)
- Tools & Technologies: Confluence, SharePoint, Markdown, DITA, Swagger / OpenAPI, Git, Visio, Lucidchart, Jira, Azure DevOps

Desired Qualifications

- Familiarity with FedRAMP, NIST RMF, ICD 503
- Familiarity with DevSecOps environments
- Knowledge of structured authoring frameworks (DITA)

Core One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

## __PRESENT

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## About Core One

## Company Overview
- **One-liner**: Core One delivers analytical, operational, and technical solutions to the most complex national security challenges facing the U.S. government.
- **Entity Type**: Private (revenue-funded, no disclosed funding rounds)
- **Headquarters**: Sterling, Virginia, USA
- **Founded**: 2013
- **Founders**: Patrick Moniz (CEO & Co‑founder), Joseph Koo (President & Co‑founder)

## Core Business
- **Primary industries**: Defense, national security, intelligence, space manufacturing
- **Target customers**: U.S. government agencies (DoD, Intelligence Community, Special Operations)
- **Mission/purpose**: “Deliver solutions that anticipate and address the most complex challenges facing the U.S. national security community,” helping clients “secure enduring strategic dominance.”

## Products & Services
- **Mission Integration**: Fuses intelligence and defense expertise to craft solutions across blurred mission boundaries.
- **Intelligence Analysis**: Enables the intelligence community to produce actionable intelligence for threat mitigation.
- **Defense Programs**: Partners with the Department of Defense to deliver capabilities that deter aggression and ensure global stability.
- **Operational Support**: Provides advisory to the highest levels of the U.S. national security and defense apparatus.
- **Training & Logistics**: Designs and conducts over 5,000 exercises, red cells, and test environments; runs advanced special operations training courses.
- **Strategic Services**: Advisory, planning, and synchronization support for strategic initiatives.
- **Custom Technical Solutions**: Builds and scales secure, scalable technical solutions (30+ unique solutions delivered).
- **All-Source Analysis, Cyber Security, Data Science, DevOps, Cloud Architecture**: Various technical service lines deployed across 117 locations worldwide.

## Market Standing
- **Valuation**: Not publicly disclosed
- **Annual Revenue**: ~$27M (as of ~2025, per LinkedIn data)
- **Headcount**: 107 employees (37% year‑over‑year growth, +50 people)
- **Notable Investors/Partners**: No external investors disclosed. Key government partners include USSOCOM, DoD, and Intelligence Community agencies. Board member Mac Curtis joined in June 2025.
- **Growth Signals**:
  - Awarded USSOCOM J59 Futures Planning and Synchronization Prime Contract (Jan 2025)
  - Awarded IC Division contract in Northern Virginia expanding software, data, and DevOps capabilities (Feb 2025)
  - Acquired Calhoun International (Dec 2024) and Global Research Analytics (Feb 2023)
  - Active job postings: 86 (monthly +21%, quarterly +19%, yearly +51%)

## Competitive Advantages
- **Mission focus**: Deep specialization in U.S. national security with a singular focus on government partners.
- **Discretion & trust**: Operates with “utmost discretion” to maintain operational security – a cornerstone of long‑term partner relationships.
- **Integrated intelligence‑defense capability**: Bridges intelligence and defense communities, offering seamless support across mission sets.
- **Proven scale**: Has rapidly established and scaled operations at 117 CONUS/OCONUS locations.
- **Talent pipeline**: Attracts experienced professionals from top defense contractors (e.g., Amentum, PAE, SAIC, GDIT).

## Strategic Focus
- Continue geographic and capability expansion through strategic acquisitions and prime contract wins.
- Grow technical services (software, data, DevOps, cloud) to complement traditional intelligence and operational support.
- Deepen relationships with USSOCOM, IC, and DoD by delivering integrated, forward‑leaning solutions.
- Maintain elite training and exercise capabilities to simulate modern threat environments.

## Why Work Here
- **Meaningful work**: Employees support critical national security missions that protect the country, with a culture of “relentless dedication.”
- **Culture**: Collegial, principled, and mission‑first; described as “highly effective team” that values adaptability, discretion, and integrity.
- **Benefits**:
  - Competitive, market‑based compensation and performance bonuses
  - 6% 401(k) company match, vested immediately
  - Health, dental, vision insurance (individual & family)
  - Paid time off, 11 paid federal holidays, parental leave (paid for new parents)
  - Flexible Spending Accounts (medical and child‑care, tax‑free)
  - Life & disability insurance at no cost
  - Training and certification reimbursements
- **Career growth**: Individual development plans; roles span Intelligence Analysis, Operations, Corporate, Application Development, Training & Logistics.
- **Locations**: Sterling, VA (HQ) and sites across the U.S. and overseas (Philippines). Many roles require TS/SCI clearance and may involve travel.
- **Work environment**: Hybrid/office based on mission needs; emphasis on collaboration and focused teamwork.

## Sources
1. [Core One – About](https://www.coreone.com/company)
2. [Core One – Careers](https://www.coreone.com/careers)
3. [Core One – Homepage](https://www.coreone.com/)
4. [Core One – Job Board (Greenhouse)](http://job-boards.greenhouse.io/coreone)
5. [Core One – LinkedIn](https://www.linkedin.com/company/coreone)

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