Full-stack AI Software Engineer (M/F)
Startupfuel
StartupFuel is a venture intelligence company that has built DiligenceGPTâ¢, an AI-powered platform used by venture capital and private market investors to streamline deal flow management, and due diligence, enabling faster, more consistent, and better-informed investment decisions across early and growth-stage companies.StartupFuel is hiring a Full-Stack Software Engineer to build and scale the SaaS platform behind DiligenceGPTâ¢.
This role focuses on the product, platform, and infrastructure layer that powers AI-driven workflows. You will build the systems that allow investors to securely interact with AI outputs, documents, and data.
You will work closely with AI engineers to integrate agent outputs into dashboards, workflows, and enterprise-grade features. The emphasis is on clean architecture, performance, and reliability.
Build and maintain full-stack features using the MERN stack (MongoDB, Express, React, Node.js)
Tailwind CSS for design
Design efficient MongoDB schemas, indexes, and data models
Debug production issues and optimize performance
Collaborate on system design, architecture, and technical decisions
Strong experience with JavaScript / TypeScript
Hands-on experience with Node.js & Express
Solid knowledge of React (hooks, state management, component architecture)
Understanding of async programming, promises, and event-driven systems
Experience with Docker and basic deployment workflows
Experience working in early-stage startups
Close collaboration with AI engineers shipping LLM features
Exposure to enterprise customers and investor workflows
Clear growth path with increasing technical ownership
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