Staff Software Engineer

About ManifestManifest 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 RoleWe'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 DoBuild and ship full-stack features end-to-end across our legal tech platformDesign and maintain production-grade APIs with proper error handling and documentationArchitect secure client portals and case management systems with complex permissionsIntegrate LLMs and AI workflows into document processing and automation featuresContribute to database design and backend architecture using PostgreSQLDeploy and manage services on cloud infrastructure, preferably GCPWhat We're Looking ForMust-haves:10+ years of fullstack development with strong Node.js and TypeScript expertiseProven track record delivering features that produce measurable business outcomesExperience building production APIs with monitoring, error handling, and documentationStrong PostgreSQL or relational database design skillsHands-on cloud platform experience — GCP preferred, AWS or Azure acceptableDaily use of AI coding tools (Cursor, Copilot, or similar) for 50%+ of your workflowNice-to-haves:Experience at AI-native companies such as Cursor, Replit, Vercel, or similarBackground building client portals, CRMs, or case management systemsPython knowledge for AI/ML tooling and integrationFamiliarity with legal tech or other regulated industriesThis 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 processThis 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.