Staff Software Engineer, OfficeJS
Hybrid (New York)$231k - $340kFull-timePosted 8mo ago
About the role
Role focused on leading the development of Harvey in Word, the Microsoft Office Add-in in Word, and potentially contribute to Outlook integrations, with emphasis on OfficeJS expertise, scalable architectures, and UX for AI-powered features.
Responsibilities
- Own and lead the technical direction of Harvey in Word, our flagship Office Add-in product, alongside our other Microsoft Office integrations.
- Build the AI-native editing experience: agentic document rewrites, real-time redlining, and playbook automation that transforms how lawyers work
- Design and build sophisticated integrations with Microsoft Word using the OfficeJS API, including document manipulation, playbook reviews, and AI-assisted drafting
- Architect scalable, maintainable solutions that handle the constraints and quirks of the Office Add-in environment across platforms (Windows, Mac, Web)
- Build polished, high-performance interfaces with crisp interactions and resilient error handling
- Collaborate with product, design, and backend teams to shape APIs and UX for AI-powered features like streaming results and tool-calling workflows
- Navigate Office Add-in requirement sets, versioning, and cross-platform compatibility to ensure broad, reliable support
- Contribute to Harvey in Outlook and shape the next generation of agentic AI interfaces across the Microsoft suite
- Mentor engineers, drive technical decisions, and raise the bar on quality and developer experience
Qualifications
- 10+ years of software engineering experience, with significant depth in Office Add-in development using OfficeJS
- Experience building and shipping a production Office Add-in product, ideally one used at enterprise scale
- Strong proficiency in JavaScript/TypeScript, HTML, and CSS
- Deep understanding of Office Add-in architecture, requirement sets, manifest configuration, and cross-platform considerations
- Experience with React or similar modern frontend frameworks
- Track record of shipping highly intuitive products with strong attention to detail
- Familiarity with Microsoft Office Add-in guidelines and AppSource submission process is a plus
Skills
Required:OfficeJS / Office Add-in developmentJavaScript/TypeScriptReact
Benefits
- Comprehensive health, dental and vision coverage
- Retirement benefits (401k match up to 4%)
- Flexible PTO
Last updated Oct 22, 2026. Interested? Apply on the company site.
About Harvey
Professional Class AI
Harvey is a platform built to meet the standards of the world’s leading professional service firms.
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