Staff Software Engineer, OfficeJS

Harvey

Staff Software Engineer focusing on AI-powered Microsoft Office integrations. Building and enhancing the Harvey in Word application for legal professionals.

Posted 6/26/2026full-timeSan Francisco • California • 🇺🇸 United StatesLead💰 $231,000 - $340,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptReactTypeScript

About the role

Key responsibilities & impact

Own and lead the technical direction of Harvey in Word, our flagship Office Add-in product
Build the AI-native editing experience: agentic document rewrites, real-time redlining, and playbook automation
Design and build sophisticated integrations with Microsoft Word using the OfficeJS API
Architect scalable, maintainable solutions for the Office Add-in environment across platforms (Windows, Mac, Web)
Build polished, high-performance interfaces
Collaborate with product, design, and backend teams to shape APIs and UX for AI-powered features
Navigate Office Add-in requirement sets, versioning, and cross-platform compatibility
Contribute to Harvey in Outlook and shape the next generation of agentic AI interfaces

Requirements

What you’ll need

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

Benefits

Comp & perks

Comprehensive health, dental and vision coverage
Retirement benefits (401k match up to 4%)
Flexible PTO

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

OfficeJSJavaScriptTypeScriptHTMLCSSReactAI-native editingdocument rewritesreal-time redliningplaybook automation

Soft Skills

collaborationattention to detailleadershipcommunication