Node.js / NestJS Architect (System Design) - AI Operations Platform

Description:
We are hiring a strong senior engineer for a production-grade AI Operations Platform (real infrastructure, not wrappers), as a dedicated full-time engineer.

You will own architecture and delivery end-to-end: clean NestJS backends with real separation of concerns, MongoDB modeled and indexed around actual access patterns, and a Next.js / React front. This is architecture-first work where structure and data modeling are the difference between scaling and rewriting.
Small team, real infrastructure, end-to-end ownership.

Must-have (mandatory):
Expert NestJS / Node.js (6+ years backend)
Strong MongoDB (modeling, indexing)
Next.js / React on the front
Deep on system design, database design, and design patterns (the interview goes deep here)
Clean-architecture mindset, real ownership
Comfortable with AI-assisted dev tools (Cursor / Copilot)
Strong English, comfortable leading daily technical calls

Nice-to-have:
AI/ML or AI-agent production experience (not required)
Cloud / DevOps basics (CI/CD, deployments)

Conditions:
Full-time, dedicated to ONE client (no parallel projects), long-term
Virtual-office model: team stays in a shared Google Meet during work hours, cameras and mics off by default, on only when needed. Not monitoring, just ambient presence; free breaks
Timezone: comfortable overlap with GMT+2/+3 (client in Israel)
Process: the interview includes a short live technical screen-share. Please share a GitHub/GitLab or a code sample you can walk us through.

Looking forward to your reply!