Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.
Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!
If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.
Lightmatter is (re)inventing the future of computing with light!
We are a small, highly technical writing team embedded in the Product org at Lightmatter. We own all customer-facing technical content for our hardware and software products — giving engineers and researchers at the leading edge of AI and high-performance computing everything they need to get up and running fast.
ResponsibilitiesAs a Senior Technical Writer, you will be key in defining the voice and structure of Lightmatter's customer-facing content. Your responsibilities will include:
- Lead technical writing activities for critical customer-facing product content, including hardware and software documentation for silicon photonics products such as data sheets, user guides, API documentation, release notes, and product briefs.
- Drive content strategy, governance, and quality standards across all documentation outputs, ensuring technical accuracy and alignment with Lightmatter's innovative product vision.
- Collaborate extensively with Engineering, Marketing, Supply Chain, and Sales Teams to seamlessly integrate documentation with product development and release cycles.
- Architect and manage authoring and publishing pipelines utilizing a DITA XML-based structured authoring environment and Git-based repositories.
- Define and maintain scalable information architecture, metadata frameworks, and content models to optimize content reuse and simplify complexity.
- Integrate documentation systems with engineering and PM tools (e.g., connecting Jira tasks to documentation status, using GitBook to automate documentation updates, and so on).
- Configure and maintain cascading style sheets (CSS) within documentation platforms (e.g., Oxygen XML) to adapt content for web and PDF outputs.
- Pioneer the use of AI tools within the documentation lifecycle to accelerate content generation and partner with IT to pilot and scale AI-enabled authoring workflows.
- Collaborate closely with Subject Matter Experts (SMEs) to extract highly complex solution details and transform them into clear, modular, and consumable documentation.
- Bachelor's degree in Electrical Engineering, Computer Science, Mechanical Engineering, or a related discipline.
- 10+ years of professional experience in semiconductor technical writing, including at least two years in a leadership capacity. Expertise in DITA XML, structured authoring, and Component Content Management System (CCMS) platforms, preferably with proficiency in Oxygen XML Editor.
- Experience developing and maintaining custom plugins and enhancements such as DITA-OT, XSLT, and CSS.
- Experience in publishing workflows and version control systems (such as Git).
- Proven ability to identify and implement productivity tools and automation (for example, customized review/approval workflows, dynamic asset libraries) for a scalable modern platform.
- Familiarity with generative AI tools and proven ability to define their practical application in documentation.
- Excellent communication, project management, and proven ability for cross-functional collaboration.
- Proficiency with relevant documentation tools such as MS Office Suite, MS Visio, and Adobe Acrobat/Framemaker/Photoshop/Illustrator.
- Proven ability to read and write code for documentation purposes.
- Experience with silicon photonics, fiber optics, or laser products is a plus.
We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.
- Comprehensive Health Care Plan (Medical, Dental & Vision)
- Retirement Savings Matching Program
- Life Insurance (Basic, Voluntary & AD&D)
- Generous Time Off (Vacation, Sick & Public Holidays)
- Paid Family Leave
- Short Term & Long Term Disability
- Training & Development
- Commuter Benefits
- Flexible, hybrid workplace model
- Equity grants (applicable to full-time employees)
Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.
Export Control
Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.
Skills Required
- 10+ years of professional experience in semiconductor technical writing
- 2+ years in a leadership capacity
- Expertise in DITA XML and structured authoring
- Bachelor's degree in a technical field
- Experience with Git and version control systems
- Proficiency with documentation tools such as MS Office Suite and Adobe products
Lightmatter Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lightmatter and has not been reviewed or approved by Lightmatter.
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Fair & Transparent Compensation — Pay is considered competitive for specialized photonics and AI‑hardware roles, with posted ranges and third‑party totals aligning to strong market levels. Compensation for niche roles is framed as consistent with top‑tier hardware/photonics expectations.
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Healthcare Strength — Healthcare is described as comprehensive, covering medical, dental, and vision in current postings. Additional protections like life insurance and disability are also called out.
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Equity Value & Accessibility — Equity grants for full‑time employees are commonly included alongside base pay. Some postings also mention performance‑based equity components.
Lightmatter Insights
What We Do
Lightmatter is a startup photonics company that has pioneered a new paradigm in processor chip architecture that uses photons instead of electrons. Now the leader in the photonic AI compute “space race,” this new class of high performance semiconductors is the foundation of Lightmatter’s mission to enable the growth of computing, reduce harmful emissions associated with this growth, and democratize computing for all. Lightmatter's technology accelerates critical operations in deep neural networks, using an array of programmable photonic elements fabricated alongside transistors in conventional computer chip fabrication processes. Our close-knit team of engineers has created an integrated photonics chip and ultra-high performance interconnect that is faster, more efficient, and cooler than anything else on earth (or anything ever experienced before) to power the next giant leaps in human progress.
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