Senior Full-Stack Tech Lead: AI-Driven Architect

The Mill; San Bruno (CA); On-site; USD 185,000 - 225,000; Full time

Job summary

The Mill is seeking a highly skilled Senior Full Stack Tech Lead to join our engineering team. This is an individual contributor technical leadership role reporting to the Director of Software Engineering.

You will drive the technical direction of your project area, write high-quality code across the stack, and act as the primary technical partner to product management, while mentoring engineers around you.

Qualifications

• 6+ years of professional experience in software development with a focus on full-stack development.
• Experience with modern frontend frameworks (React/Vue/Angular/SvelteKit).
• Strong backend experience with TypeScript/Node.js; comfort with serverless architectures (AWS Lambda) is a plus.
• Solid understanding of SQL and NoSQL database systems.
• Experience with cloud platforms (AWS) and modern deployment workflows.
• Fluency with AI-assisted development workflows (Claude Code, Copilot).
• Strong software architecture fundamentals (microservices, serverless).
• Excellent problem-solving and debugging skills.

Responsibilities

• Lead the technical design and execution of full-stack web applications.
• Architect and implement scalable, secure, and efficient full-stack solutions.
• Evaluate and select technologies to improve team productivity and code quality.
• Own estimates and technical delivery plans for your project area, surface risks early.

Skills

Full-stack development

Frontend frameworks

TypeScript/Node.js

Databases (SQL/NoSQL)

Cloud platforms (AWS)

AI-assisted tooling

Software architecture

Tools

SvelteKit

React Native

AWS Lambda

CDK

Middy

Terraform

Job description

The Mill is seeking a highly skilled Senior Full Stack Tech Lead to join our engineering team. This is an individual contributor technical leadership role reporting to the Director of Software Engineering.

You will drive the technical direction of your project area, write high-quality code across the stack, and act as the primary technical partner to product management, while mentoring engineers around you.