Manifest Os

Staff Software Engineer

New York City. Posted a month ago

The role

You will build the legal tech platform powering AI-native law firms. You will own the development of secure client portals and enterprise-grade systems from architecture to production.

What you will do

  • Build infrastructure that measures and improves AI agent performance
  • Build tooling and guardrails for secure and reliable company-wide self-service
  • Design database and backend architecture
  • Deploy and operate services on cloud infrastructure
  • Own end-to-end features including client portals, case management, and workflows
  • Design production-grade APIs, data models, and permission systems

Required qualifications

  • 10+ years building production software, with demonstrated depth in at least one area (backend systems, infra, ML/AI systems, frontend or similar)
  • Bachelor’s degree or equivalent practical work experience
  • Proven track record delivering features that produce measurable business outcomes
  • Comfort with relational database design and data modeling
  • Hands-on experience deploying and operating services on a major cloud platform
  • Fluent with AI coding tools as a core part of your daily workflow
  • A track record of self-teaching your way into unfamiliar systems and shipping there
  • First-principles and systems thinking
  • Familiarity with TypeScript, React, GCP, PostgreSQL

Nice to have

  • Deeply engaged with the AI tooling ecosystem
  • Experience with eval systems, retrieval, agent orchestration OR ML in production
  • Background building client portals, CRMs, or case management systems
  • Familiarity with legal tech or other regulated industries

About the company

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. They power the next generation of AI-native law firms with a proprietary technology platform and a centralized back office.

Staff Software Engineer at Manifest Os | JobZoey