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Core One

National security and intelligence services

Junior Technical Writer

Technical WritingConfirmed live in the last 24 hours
Full-timeMcLean, VA, USA$120k - $150kIn-person

About the Job

Requirements

  • An active TS/SCI clearance with polygraph is required.
  • A bachelor's degree or higher in Technical Writing, English, IT, or a related field is required.
  • At least one year of technical writing experience in IT or cybersecurity environments is required.
  • The candidate must be able to document complex systems and architectures, including APIs and data models.
  • Experience with Confluence, SharePoint, Markdown, DITA, Swagger/OpenAPI, Git, Visio, Lucidchart, Jira, and Azure DevOps is required.

Responsibilities

  • Support development and maintenance of compliance artifacts, including System Security Plans, Security Assessment Reports, and Plans of Action and Milestones.
  • Support alignment with NIST SP 800-53, Risk Management Framework (NIST SP 800-37), FedRAMP Moderate and High baselines, and ICD 503.
  • Support Authority to Operate lifecycle documentation and audit readiness.
  • Support and ensure production of developer-facing materials, including API references, integration guides, and SDK documentation.
  • Collaborate with back-end developers to ensure API contracts are accurate and up to date.
  • Document data dictionaries and metadata, database schemas and relationships, and data governance policies.
  • Work with database engineers to document data lineage, classification, and handling requirements clearly.
  • Develop and maintain standard operating procedures, change enablement documentation, and incident response runbooks in collaboration with the respective team subject-matter experts.
  • Align documentation with ITIL processes in coordination with team subject-matter experts.
  • Establish and enforce documentation standards and templates, manage version control and document lifecycles, 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.
  • Use Confluence, SharePoint, Git-based documentation using Markdown, and API tools such as Swagger/OpenAPI.
  • Support automation of documentation workflows within continuous integration and continuous delivery pipelines.
  • Support preparation for and manage documentation for FedRAMP audits, third-party assessment organization assessments, and internal compliance reviews.
  • Ensure documentation is complete, accurate, traceable, and aligned with system configurations and controls.
  • Mentor junior writers or contributors and promote documentation as a critical engineering discipline.
  • Continuously improve documentation quality and usability.

Desired Qualifications

  • Familiarity with FedRAMP, NIST Risk Management Framework, and ICD 503.
  • Familiarity with DevSecOps environments.
  • Knowledge of structured authoring frameworks such as DITA.

About the Company

Core One

National security and intelligence services

Core One provides intelligence, security and mission-support services to United States government customers. Its capabilities include intelligence analysis, operations support, training, language services, technology and other specialized work for defense and national security environments. The company assembles cleared professionals and program teams around agency requirements, often operating alongside government personnel. Core One is best understood as a federal contractor supporting sensitive missions rather than a consumer technology company or a similarly named commercial business. Its workforce combines specialist delivery, customer support and business operations.

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