Senior JavaScript Engineer (SuperDoc)

About the Position

We are looking for a Senior JavaScript Engineer to join our team at SuperDoc, an open-source document editor that brings modern DOCX editing and advanced collaboration to the web. Our editor powers real-time collaboration, dynamic LLM-driven suggestions and actions, streamlined agentic workflows, and more. SuperDoc is already the editor platform of choice for a new wave of LegalTech and GovTech companies.

About SuperDoc

SuperDoc is an open-source document editor bringing modern DOCX editing and advanced collaboration to the web. We care a lot about building simple, beautiful document experiences that teams can self-host, extend, and trust. Our editor powers real-time collaboration, dynamic LLM-driven suggestions and actions, streamlined agentic workflows, and more. SuperDoc is already the editor platform of choice for a new wave of LegalTech and GovTech companies.

Under the hood, we dynamically bind MS Word OOXML to a ProseMirror schema in our editor JS library, and make it easy for customers to add their own features and AI actions on top. Any prior experience building/extending editors (ProseMirror, TipTap, Lexical, etc.) or parsing OOXML is a big bonus.

We’re a small engineering team that ships fast and works closely with our user community. SuperDoc is an Equal Opportunity Employer.

Location & Hours

• Location: Remote-friendly; San Francisco Bay Area preferred
• Schedule: Full-time, with core team collaboration hours between 9AM–1PM PT for team meetings, project deep-dives, and customer calls
• We’re a distributed team across time zones – we value clear communication/documentation and work synchronously when we’re not in those overlap hours

Role & Responsibilities

You will be a core engineer building new editor capabilities that bring intelligent understanding, formatting, editing, and LLM-assisted actions into the document experience.

On a typical project, you might:

• Dive deep into MS Word OOXML parsing and mapping to ProseMirror nodes and marks
• Design and ship AI + editor integrations that help users draft and restructure complex documents
• Own features end-to-end: from talking to users, to designing APIs and UX, to shipping and iterating
• Collaborate directly with co-founders, sales, and customers to shape the roadmap
• Articulate to the team how involved technical decisions will drive business outcomes – including key trade-offs and the design choices made for project success and longer-term sustainability
• Champion the best practices in engineering, data security, and automated testing

This is an opportunity to modernize the document experience: reimagine high-volume document workflows on top of a modern and open editor platform.

Requirements

• Core Skills:
  • Deep technical expertise in modern JavaScript (and ideally TypeScript)
  • Experience with Vue and ProseMirror
• Nice to Have:
  • Passionate builder: you’ve started something from scratch (a startup, product, or meaningful project) or actively contribute to a community/OSS project
  • Demonstrates compassion for the user and crafts helpful, intuitive solutions
  • Learns from user and team feedback, and polishes-and-iterates a feature to excellence
  • Strong communication and collaboration skills

Tech Stack & Tools

• JavaScript
• TypeScript
• Vue
• ProseMirror
• GCP
• Node
• Playwright
• Excalidraw
• Linear

We Offer

• 20 working days of vacation and 15 sick leaves (public holidays as well)
• Healthcare Expense Reimbursement
• Sports Membership Reimbursement

Apply Now

Apply now