Mainframe
Founding Engineer (Backend / Product)
New York or Remote · Full-time · Posted Oct 30, 2026
- Experience
- 4–8+ years building production-grade backend systems.
About the job
Build and shape scalable backend infrastructure and product capabilities for real-time intelligent agents, from early beta through growth.
What you'll do
- Architect and ship scalable backend services and evolve system architecture as the product scales.
- Design systems balancing speed, reliability, and changing product needs; contribute to API design and agent orchestration.
- Collaborate with product, design, and frontend engineers to shape the user experience.
What they ask for
- Strong technical judgment and architectural instincts.
- Experience with distributed systems, data modeling, and cloud infrastructure.
- Comfort working across the stack and collaborating cross-functionally with product and design.
Nice to have
- Experience with TypeScript, React, Next.js, Convex, Vercel, OpenAI, or Claude.
Tools
TypeScript, React, Next.js, Convex, Vercel, OpenAI, Claude
AI focus
Build backend services powering real-time intelligent agents; contribute to agent orchestration strategies.
Model-written summary · the original posting is authoritative