Staff Software Engineer, OfficeJS

Ovii's Interpretation of the Role

We are seeking a Staff Software Engineer to own and lead the OfficeJS‑based Harvey in Word add‑in, delivering AI‑native editing experiences inside Microsoft Word. You will architect cross‑platform integrations, build high‑performance UI, and mentor engineers while collaborating across product, design, and backend teams.

Role Snapshot

• Lead technical direction of Harvey in Word
• Build AI‑native editing features
• Architect cross‑platform OfficeJS integrations
• Mentor engineers and raise quality standards
• Collaborate with product, design, and backend

Must-Have Requirements

• OfficeJS API
• JavaScript/TypeScript
• HTML
• CSS
• React or similar modern frontend framework
• Deep understanding of Office Add‑in architecture
• Office Add‑in development
• OfficeJS

Nice-to-Have Signals

• Outlook Add‑in development
• Legal tech or enterprise SaaS background
• AI/LLM integration experience
• Familiarity with AppSource submission process
• Legal tech
• AI/LLM integration
• legal tech
• enterprise SaaS

Work Setup

• Location: New York, USA
• Work mode: HYBRID
• Remote scope: UNSPECIFIED
• Relocation: relocation assistance offered
• Employment type: Full-Time

Eligibility Gates

• Visa sponsorship: unknown

Not Specified in JD

• Visa sponsorship
• Security clearance
• Coding test
• Portfolio
• GitHub
• Writing sample
• Cover letter

What You'll Likely Work On

• Own and steer the technical roadmap for the Harvey in Word Office Add‑in
• Design and implement AI‑driven document rewriting, real‑time redlining, and playbook automation
• Create robust integrations with Microsoft Word via the OfficeJS API across Windows, Mac, and Web
• Build polished, high‑performance UI components with strong error handling
• Partner with product, design, and backend teams to define APIs and UX for streaming AI results
• Manage Office Add‑in requirement sets, versioning, and cross‑platform compatibility
• Contribute to Outlook integration and future AI interfaces across the Microsoft suite
• Mentor engineers, drive technical decisions, and champion developer experience

Good Fit If You Have

• Experience with Outlook or other Microsoft 365 add‑ins
• Background in legal tech or enterprise SaaS
• Familiarity with Microsoft AppSource submission process
• Experience building AI‑enabled products