Software Engineer, OfficeJS

GC AI is the fastest-growing and most trusted legal AI platform for in-house legal teams. We're building the future of legal work, and we're doing it fast. You'll join at a pivotal moment—when decisions matter, impact is immediate, and the runway to shape your career is wide open. We’re a high-performing team where you'll have real ownership and influence from day one.

More than 1,500 companies use GC AI to drive their business forward, including 150+ public companies, 25+ unicorns, and brands such as News Corp, Miro, Bass Pro Shops, Snyk, Skims, Liquid Death, Vercel, Zscaler, and TIME.

We've 10x'd revenue in 12 months, raised a $60 million Series B ($555 million valuation), and are growing faster than ever. We are backed by incredible investors, including Scale Venture Partners, Northzone, Sound Ventures, and Guillermo Rauch, CEO of Vercel.

If you thrive when the stakes are high and the path isn't paved, you'll love it here. Our six guiding principles are: 1% better every day, customer obsession, ship today, find a way, care deeply, and own it completely. Come shape the future of legal work with us.

We are hiring for this role to be based in the United States or Canada. This is a remote role unless you fall within the following parameters. If you live within approximately 50 miles of our San Mateo, CA or Provo, UT office, the position follows a hybrid schedule with in-office days on Tuesdays, Wednesdays, and Thursdays.

As a Software Engineer on our OfficeJS team, you'll be at the center of the most ambitious product in legal AI: GC AI for Word, the AI copilot that lives where lawyers actually work.

You'll be crafting the experience that lets in-house legal teams surgically redline contracts, draft clauses on the fly, and spot risks in seconds, all without leaving Microsoft Word.

You'll work directly with our founding team (including a 3x General Counsel who knows exactly what lawyers need) and a tight group of exceptional engineers to ship features that make lawyers say "Wow, this is magic."

The legal AI space is exploding, and we're in pole position. We’ve raised $60M at a $555M valuation because we've built something lawyers actually love. Now we need an engineer who can help us pull even further ahead.

You'll own the surface area where AI meets the document. Every redline, every clause suggestion, every risk flag, that's your canvas. The decisions you make will directly shape how thousands of lawyers experience AI in their daily work.

• Build and refine our Microsoft Word Add-in

• Obsess over latency, reliability, and the micro-interactions that make the difference between "useful tool" and "can't live without it."

• Architect the bridge between our AI backend and the Word document model, handling everything from tracked changes to comment threads

• Ship features like playbook-driven reviews, clause libraries, and contextual drafting that outpace the competition

• Collaborate with our AI team to integrate model outputs in ways that feel native to the legal workflow

• Define the UX patterns for AI-assisted contract work that the entire industry will follow

• Build the product that turns hour-long contract reviews into 10-minute workflows

• Ship features that directly drive enterprise adoption and make IT teams say "yes" faster

• Help further GC AI’s position as the undisputed leader in legal AI for in-house teams

• 5+ years building production software, ideally with a focus on rich client applications or editor experiences

• Strong expertise in TypeScript and React

• Experience with Microsoft Office Add-ins, VS Code extensions, or similar embedded application development

• Deep understanding of real-time collaboration patterns and document manipulation

• Track record of shipping polished, user-facing features that people actually love

• Experience with Office.js or the Microsoft Graph API

• Background in legal tech, document automation, or CLM platforms

• Familiarity with LLM integration patterns and streaming responses

• You've used Cursor, Copilot, or similar AI coding tools and have opinions about what makes them great
  

We’re building something new in a once-in-a-generation shift in technology and the legal industry, so we move at a relentless pace. We expect urgency, ownership, and good judgment even when things aren’t perfectly clear. If you need structure and consensus to do your best work, this isn’t the right place for you. If you thrive in ambiguity and growth, work with intensity, and want real responsibility, keep reading. We’re excited to meet you.

GC AI's compensation package includes a competitive base salary benchmarked against real-time market data, as well as meaningful equity and excellent benefits for all full-time roles. Our US-based compensation range for this role is $165,000 – $350,000. This range spans four levels, from mid-level to Principal. Final compensation will vary based on leveling, market conditions, geographic location, and candidate qualifications, including relevant knowledge, skills, and experience assessed during the interview process.

These compensation bands are just the starting point. After someone joins and proves they’re an exceptional performer, we adjust quickly to ensure their compensation aligns with their impact.

GC AI is an equal opportunity employer that supports workplace diversity and does not discriminate on the basis of race, color, religion, gender identity/expression, national origin, age, military service eligibility, veteran status, sexual orientation, marital status, physical or mental disability, or any other protected class. GC AI is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. #LI-GCAI

To protect yourself against phishing and recruitment fraud, please note that GC AI only accepts job applications through our official careers page at https://gc.ai/careers and through sponsored jobs on LinkedIn. All legitimate communication from our team regarding job opportunities will come from a GC AI team member with a @gc.ai or @getgc.ai email address.

GC AI will never:

• Refer you to external websites to apply

• Conduct interviews over email, chat platforms, or messaging apps

• Ask you to provide payment or purchase equipment

• Request personal or financial information such as your mailing address, social security number, credit card numbers, or banking information during the application process

Examples of fraudulent email addresses:

• [email protected]

• [email protected]

• Any email address ending in @gmail.com, @yahoo.com, or other free email services

If you are contacted by someone claiming to be from GC AI via an unofficial channel or from a suspicious email address, please do not share any information. Mark the communication as "phishing" or "spam" and do not respond.