Software Engineer
About The Position
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 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. This opportunity is ideal for engineers who want broad scope, high ownership and move nimbly across lanes. You'll work across AI systems architecture and full-stack engineering - eval systems, retrieval, agent orchestration, and optimization, alongside the APIs, data models, and systems that power the core platform. This is an in-person role - you'll be on-site at our NYC office 5 days a week.
Requirements
- 7+ years building production software, with demonstrated depth in at least one area (backend systems, infra, ML/AI systems, frontend or similar)
- 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: you can reason about a system you didn't build, from the database up through the API to the product surface
- Familiarity with our stack - TypeScript, React, GCP, PostgreSQL
Nice To Haves
- Deeply engaged with the AI tooling ecosystem - you follow new model releases, experiment with new tools as they land, and stay current out of genuine curiosity
- 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
Responsibilities
- Own end-to-end features across our legal tech platform - client portals, case management, and the workflows lawyers and clients depend on daily
- Design production-grade APIs, data models, and permission systems for a regulated, high-trust domain
- Eval systems, retrieval, and agent orchestration - building the infrastructure that measures and improves how our AI agents perform
- Harness engineering - building the tooling and guardrails that let the rest of the company build securely, reliably, and self-serve
- Database design and backend architecture
- Deploy and operate services on cloud infrastructure
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
