Senior/Staff Software Engineer, Harvey

• We're looking for someone with deep expertise in OfficeJS and Office Add-in development, ideally from building a similar product at scale
• 5+ 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

Desirable

• As a Senior/Staff Software Engineer on the Embedded Experiences team, you will own and lead the development of Harvey in Word, our Microsoft Office Add-in built on OfficeJS, alongside our other Microsoft Office integrations
• You'll architect and ship features that integrate seamlessly with Word, handling the unique challenges of building performant, polished experiences within the Office Add-in environment
• You'll join a team of highly motivated, skilled engineers who hold everything they touch to the highest standards, from architecture to code to user experience
• You may also contribute to our Outlook integration and help build the next generation of agentic AI interfaces across the Microsoft suite
• You'll 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