Staff Software Engineer - AI-Driven Legal Platform

Manifest OS; New York (NY); On-site; USD 150,000 - 210,000; Full time

Job summary

Manifest OS, an AI-native company building the next generation of AI-enabled legal tech, seeks a backend-leaning Software Engineer in New York. You’ll own secure client portals, API design, and production systems from architecture to deployment.

You'll integrate LLM workflows, design relational data models with PostgreSQL, and ship end-to-end features on a cloud platform (GCP preferred). Seniority is validated by 10+ years of full-stack experience and a track record of business-ready outcomes.

Qualifications

• 10+ years of full-stack development with a focus on backend systems
• Proven track record delivering features with 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

Responsibilities

• 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

Skills

Node.js

TypeScript

API design

PostgreSQL

Cloud platforms (GCP/AWS/Azure)

AI tooling (Cursor/Copilot)

Tools

GCP

AWS

Azure

PostgreSQL

Job description

Manifest OS, an AI-native company building the next generation of AI-enabled legal tech, seeks a backend-leaning Software Engineer in New York. You’ll own secure client portals, API design, and production systems from architecture to deployment.

You'll integrate LLM workflows, design relational data models with PostgreSQL, and ship end-to-end features on a cloud platform (GCP preferred). Seniority is validated by 10+ years of full-stack experience and a track record of business-ready outcomes.