Technical Writer – Energy Infrastructure Projects

ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities.

With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.

ON.energy is looking for a Technical Writer with strong experience developing structured, engineering-grade technical documentation to support product development and project execution across energy infrastructure and data center projects. This role focuses on creating, organizing, and maintaining high-quality technical documents that translate complex engineering concepts into clear, accurate, and usable materials for internal teams, customers, and operational stakeholders. The Technical Writer will work closely with R&D, product engineering, project engineering, commissioning, and operations teams to ensure documentation accuracy, consistency, and lifecycle traceability.

• Organize and maintain centralized documentation repositories and knowledge bases along with the technical document controller.
• Work with project engineering, commissioning and O&M teams to incorporate field feedback into documentation updates and continuous improvement.
• Participate in product development cycles to capture documentation requirements early in the design process.
• Ensure documentation aligns with company quality standards and customer contractual requirements.
• Support business development and proposal teams by preparing technical content and documentation sections.
• Translate complex engineering concepts into clear, concise technical language suitable for multiple audiences.
• Maintain revision control and version tracking for engineering and product documentation.
• Create and manage technical document packages related to the product:
  Develop and maintain technical documentation including product manuals, technical specifications, installation guides, operating procedures, and maintenance documentation.
• Standardize document templates, formatting, and terminology across products and projects along with the Technical Document Controller.

• Bachelor’s degree in Technical Communication, Engineering, English, or a related technical field.
• 10+ years of experience in technical writing within engineering, energy, infrastructure, or industrial environments.
• Proficiency with documentation tools (e.g., Microsoft Office, Confluence, SharePoint, or similar platforms).
• Ability to collaborate effectively with cross-functional technical and non-technical teams.
• Excellent written communication skills with strong attention to detail and accuracy.
• Experience working with document control systems and version management practices.
• Strong ability to understand engineering drawings, specifications, and system architectures.
• Demonstrated experience producing structured technical documentation for complex technical systems.

• Experience with documentation standards, quality systems, or regulated technical environments.
• Familiarity with engineering documentation such as SLDs, GAs, and technical submittals.
• Experience supporting technical writing for energy infrastructure, BESS, UPS, or mission-critical/data center projects.

• Competitive salary + annual performance-based bonus eligibility
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and company holidays

• Competitive salary + annual performance bonus eligibility
• Christmas Bonus (Aguinaldo): 30 days
• Major medical expenses and life insurance
• Paid time off and holidays (per local policy)

• Professional development and growth opportunities
• Opportunity to grow with a mission-driven team shaping the future of clean energy
• Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
• Accommodations:
  If you need an accommodation during the application process, email re
• Benefits vary by role and location and are subject to change.