Pragmatike
AI startup
PrincipalFullstackEngineer(AI)
Neural analysis suggests this role is
optimal for Senior candidates.
“Principal Fullstack Engineer (AI) at Pragmatike. Skills: Full Stack Engineering, Node.js, React, AI Products. Design full stack applications. Build full stack applications”
Industry & Context.
Debugging; Performance optimization; Troubleshooting
Relocation package available
What They're Looking For.
Must Have
5+ years of experience as a Full Stack Engineer, Proficiency in Node.js, Proficiency in React and TypeScript, Experience designing RESTful APIs, Experience working with databases, Solid understanding of modern web architecture, Solid understanding of distributed systems fundamentals, Experience building scalable applications, Experience building secure applications, Experience building high-performance applications, Comfortable owning features, Comfortable shipping to production independently
Nice to Have
Experience building data-heavy dashboards, Experience building real-time web applications, Familiarity with modern state management solutions, Experience with event-driven architectures, Experience with message queues, Exposure to AI-driven products, Exposure to ML-powered products, Startup experience, Comfort working in fast-moving environments, Comfort working in ambiguous environments
What You'll Do.
Design full stack applications
Build full stack applications
Maintain full stack applications
Architect backend services
Develop backend services
Own features end to end
Collaborate with product teams
Collaborate with design teams
Collaborate with AI/ML teams
Ship user-facing features
Establish best practices
Improve system architecture
Improve developer experience
Debug production issues
Resolve production issues
How You'll Work.
Team & Collaboration
Product teams; Design teams; AI/ML teams; Backend teams; ML teams
Full Job Description
Location: Cambridge, MA (Eastern Time / UTC -4) Relocation package: Available Start date: ASAP Languages: English (required) ABOUT THE ROLE Pragmatike is hiring on behalf of a fast-growing AI startup recognized as a Top 10 GenAI company by GTM Capital, founded by MIT CSAIL researchers. We are searching for a Senior Full Stack Engineer (Node.js + React) with strong hands-on experience building scalable, high-performance web applications powering complex, data-intensive AI products used by Fortune 500 customers. This role is ideal for an engineer who enjoys owning features end to end—from backend architecture to polished frontend delivery—someone who can design APIs, build scalable services, craft intuitive user interfaces, and ship production-ready features at scale. WHAT YOU’LL DO - Design, build, and maintain scalable full stack applications using Node.js, React, and TypeScript. - Architect and develop robust backend services, APIs, and data models. - Build modern, production-grade web interfaces with React. - Own features end to end, from technical design and implementation to deployment and production support. - Optimize performance across the stack (frontend rendering, API latency, database queries). - Collaborate closely with product, design, and AI/ML teams to ship user-facing features. - Establish best practices around testing, code quality, observability, and CI/CD. - Improve overall system architecture, scalability, and developer experience. - Debug and resolve production issues across both frontend and backend systems. WHAT WE’RE LOOKING FOR - 5+ years of experience as a Full Stack Engineer. - Strong proficiency in Node.js (Express, NestJS, or similar frameworks). - Strong proficiency in React and TypeScript in production environments. - Experience designing RESTful APIs and working with databases (PostgreSQL, MongoDB, or similar). - Solid understanding of modern web architecture and distributed systems fundamentals. - Experience building scalable, secure,
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