Senior Full-Stack Engineer: AI-Driven Web Apps & Leadership

Mill; San Bruno (CA); On-site; USD 185,000 - 210,000; Full time

Job summary

Mill is seeking a Senior Full Stack Engineer to steer the technical direction across the stack, write high‑quality code, and mentor engineers on a variety of projects. We favor cross‑functional, project‑based teams rather than strict layer separation, with an emphasis on AI‑assisted development as a standard part of daily work.

You will anchor on projects for extended periods, gaining depth while rotating to new challenges over time, and collaborating closely with product managers to meet

Qualifications

• 5+ years of professional software development experience, full-stack.
• Strong frontend with React/Vue/Angular/SvelteKit; SvelteKit preferred.
• Backend with TypeScript/Node.js; AWS Lambda/serverless.
• Experience with SQL/NoSQL databases and AWS.
• Familiar with AI-assisted development tools.

Responsibilities

• Lead the technical design and execution of full-stack web applications.
• Design scalable, secure, and efficient full-stack solutions.
• Own estimates and delivery plans; surface risks early.
• Craft clean, documented code across the stack and mentor engineers.
• Conduct code reviews and communicate constraints to product.

Skills

Full-stack development

Frontend frameworks

TypeScript/Node.js

AWS/serverless

APIs

AI-assisted tooling

Mentoring engineers

Code reviews

Software architecture

Tools

SvelteKit

React Native

AWS CDK

Middy

Terraform

CDK

Job description

Mill is seeking a Senior Full Stack Engineer to steer the technical direction across the stack, write high‑quality code, and mentor engineers on a variety of projects. We favor cross‑functional, project‑based teams rather than strict layer separation, with an emphasis on AI‑assisted development as a standard part of daily work.

You will anchor on projects for extended periods, gaining depth while rotating to new challenges over time, and collaborating closely with product managers to meet