Staff Software Engineer

About Manifest

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.

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.

What You’ll Do

• 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 PostgreSQL
• Deploy and manage services on cloud infrastructure, preferably GCP

What We're Looking For

Must-haves

• 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

Nice-to-haves

• Experience at AI-native companies such as Cursor, Replit, Vercel, or similar
• Background building client portals, CRMs, or case management systems
• Python knowledge for AI/ML tooling and integration
• Familiarity with legal tech or other regulated industries

This is for you if...

• You treat AI tools as core to how you architect and ship software.
• You want to build infrastructure that makes legal services more accessible to people.
• You thrive with ownership and prefer outcomes over process.

This is not for you if...

• You need detailed processes and defined guardrails to do your best work.
• You prefer significant direction and oversight over autonomous decision-making.
• You're earlier in your career with AI-augmented development workflows.