Senior Full-Stack Engineer (Next.js / AI)

About this role

This is a Fully Remote Job

1. About Our Client:

This organization develops a platform that enables entrepreneurs and agencies to automate sales and marketing processes using artificial intelligence. Having grown from zero to multi-eight-figure revenue in under three years, it serves thousands of teams daily with its flagship product. The company operates remotely with a small, agile team and focuses on innovation without bureaucratic constraints.

2. About the Opportunity:

The
Senior Full-Stack Engineer (Next.js / AI)
will build autonomous AI agents and multi-step large language model (LLM) workflows that automate complex tasks for numerous sales and marketing teams. This role involves end-to-end feature ownership—from designing in collaboration with product teams to deploying production-ready solutions—and delivering impactful features rapidly that directly benefit users.

3. Responsibilities:

• Develop autonomous agents capable of multi-step reasoning using planning, tool use, and memory.
• Build and maintain an operational platform including dashboards, workflow automation, and client management.
• Create LLM-powered onboarding and personalization pipelines tailored to user business contexts.
• Collaborate closely with the engineering team and product to design and ship features.
• Utilize AI-first development tools and trunk-based development practices.
• Deliver working prototypes quickly and iterate based on user feedback.

4. Requirements:

• Minimum 4 years of experience shipping production React/Next.js and TypeScript applications.
• Proven ability to own full-stack features from concept through deployment.
• Experience with Postgres and serverless infrastructure platforms (e.g., Vercel, Cloudflare).
• Practical experience building real applications with LLMs beyond basic ChatGPT usage.
• Familiarity with AI coding tools such as Cursor, Claude Code, or OpenCode is a strong plus.
• Experience building multi-agent systems, retrieva...