CreateX
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Engineering

Senior Full-Stack Engineer
AI Agents

Build the assistant and digital staff at the heart of CreateX: agents that understand requests, use tools and get work done without overstepping permissions.

01 · About the role

You'll own the core of CreateX: My Assistant and the digital staff behind it. They take a one-line request, plan the steps, call the right tools, get the work done across systems and hand the result back for a person to confirm. You'll work from the chat interface all the way to backend services, building AI that's both capable and trustworthy.

02 · What you'll do

  • Design and build agent capabilities: understanding requests, planning steps, calling tools and reporting progress.

  • Own features end to end, from the chat interface and confirm cards to backend services and data models.

  • Build evaluation and observability, so agent quality is measurable and failures are traceable.

  • Build permissions, confirmations and audit trails into the system, so AI only does what it's allowed to.

  • Work with product and design to find problems in real workflows and shape the solutions.

03 · What we're looking for

  • Several years of full-stack experience, including complete production features you shipped yourself.

  • Strong TypeScript across the stack (React, Node.js).

  • Hands-on experience building LLM applications or agents: prompting, tool calling, retrieval or evals.

  • A reliability and security mindset. You know AI makes mistakes, and you design for it.

  • The ability to break down complex problems and explain them clearly in writing.

04 · Nice to have

  • Experience with enterprise software, collaboration or workflow products.

  • Electron or React Native experience.

  • Familiarity with voice, meetings or real-time collaboration tech.

  • Experience with self-hosted deployments and running containers in production.