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Staff Software Engineer

Manifest OS · New York City · On-site

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About Manifest OS

Powering the next generation of AI-native law firms. Backed by Kleiner Perkins.

About the role

We're looking for a backend-leaning Software Engineer to help build the legal tech platform powering the next generation of AI-native law firms. You'll own the development of secure client portals and enterprise-grade systems — from architecture to production. Build and ship full-stack features end-to-end across our legal tech platform

What they're looking for

  • 10+ years of fullstack development with strong Node.js and TypeScript expertise
  • Proven track record delivering features that produce measurable business outcomes
  • Experience building production APIs with monitoring, error handling, and documentation
  • Strong PostgreSQL or relational database design skills
  • Hands-on cloud platform experience — GCP preferred, AWS or Azure acceptable
  • Daily use of AI coding tools (Cursor, Copilot, or similar) for 50%+ of your workflow
More about this role

Manifest OS is an AI-native company on a mission to replace the billable hour and make legal services more accessible for American businesses and consumers. We power the next generation of AI-native law firms with one unified global brand, a proprietary technology platform, and a centralized back office — enabling lawyers to eliminate the administrative burden and focus on delivering exceptional outcomes for their clients. Manifest OS has raised a $60M Series A from Menlo Ventures, Kleiner Perkins, First Round, and Quiet Capital.

We're looking for a backend-leaning Software Engineer to help build the legal tech platform powering the next generation of AI-native law firms. You'll own the development of secure client portals and enterprise-grade systems — from architecture to production.

Build and ship full-stack features end-to-end across our legal tech platform

Design and maintain production-grade APIs with proper error handling and documentation

Architect secure client portals and case management systems with complex permissions

Integrate LLMs and AI workflows into document processing and automation features

Contribute to database design and backend architecture using...

Read the full posting on Manifest OS's site ↗

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