Senior AI-Native Full-Stack Engineer

Braintrust; México; Remote; MXN 700,000 - 1,300,000; Full time

Job summary

Reunion Marketing is seeking a senior full-stack engineer who integrates AI coding assistants like Claude Code into the development workflow. You will own features end to end—from database to UI—while ensuring quality, security, and maintainability.

The role covers client-facing apps, dashboards, data services, APIs, and AI-powered features used by automotive dealer clients and internal teams. You will collaborate across platforms, data pipelines, and reports to deliver reliable, scalable

Qualifications

• 6+ years of full-stack software engineering experience.
• Experience building production software with AI coding assistants.
• Strong TypeScript/React/Node.js or Python and SQL experience.

Responsibilities

• Full-stack feature delivery—from database schemas to frontend—using AI assistants with production-grade quality.
• Define project context, commands, and guardrails to keep generated code aligned with architecture.
• Build AI-powered features such as chat, report generation, and agentic workflows with accuracy checks.
• Implement automated tests, CI gates, and thorough code reviews for all changes.
• Ensure production reliability including monitoring, incidents, and rollbacks as needed.

Skills

Full-stack engineering

AI coding assistants

TypeScript

React

Node.js

Python

SQL

Tools

Claude Code

Cursor

GitHub Copilot

Job description

Reunion Marketing is seeking a senior full-stack engineer who integrates AI coding assistants like Claude Code into the development workflow. You will own features end to end—from database to UI—while ensuring quality, security, and maintainability.

The role covers client-facing apps, dashboards, data services, APIs, and AI-powered features used by automotive dealer clients and internal teams. You will collaborate across platforms, data pipelines, and reports to deliver reliable, scalable