Lead Technical Writer, Product & Platform Documentation

Job Description

Halcyon is seeking a Lead Technical Writer to own all customer-facing and developer-facing documentation. Halcyon is an adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. This role involves building the foundation for a best‑in‑class docs program, covering agent deployment, features, Customer API, Policy Management, and RDR services. The Lead Technical Writer will partner with Engineering, Product, Support, and the RISE Threat Response team to translate complex security concepts into clear, concise content.

Responsibilities:

• Establish the information architecture, style guide, and tooling for all product docs, release notes, API references, and in‑app help.
• Write, edit, and maintain user guides, quick‑start tutorials, API/SDK docs, UI copy, and troubleshooting articles for each Halcyon release.
• Collaborate with Product and Engineering to understand new features and translate them into customer‑ready content.
• Own the documentation track of every release—ensuring docs, diagrams, and changelogs ship on time.
• Collect doc feedback from Support tickets, industry, and direct customer sessions.
• Select and administer authoring and publishing tools that support versioning and CI/CD workflows.
• Ensure all content reflects Halcyon’s brand.

Requirements:

• 5+ years writing developer or product documentation for SaaS, cybersecurity, or enterprise software.
• Security domain familiarity with concepts like EDR, ELAM/PPL, policy engines, APIs, and threat‑response workflows.
• Portfolio demonstrating clear, structured docs (user guides, API references, release notes).
• Toolchain expertise with Markdown/AsciiDoc, Git, static‑site generators (e.g., Docusaurus, MkDocs), or similar.
• Information architecture & UX mindset.
• Collaboration & interviewing skills.
• Self‑starter in a high‑growth startup.
• Experience documenting endpoint‑security or anti‑ransomware products.
• Familiarity with OpenAPI / Swagger and auto‑generated API docs.
• Background in developer advocacy or producing video walkthroughs/tutorials.
• Knowledge of DITA or other structured authoring frameworks.

Halcyon offers:

• Comprehensive healthcare with premiums paid in full.
• 401k plan with employer contribution.
• Short and long-term disability coverage, basic life and AD&D insurance plans.
• Medical and dependent care FSA options.
• Flexible PTO policy.
• Parental leave.
• Generous equity offering.