Full-Stack/Product Engineer

Alexander Chapman; California (MO); On-site; USD 140,000 - 200,000; Full time

Job summary

Alexander Chapman is seeking a Full-Stack Engineer for its on-site San Francisco team to build and scale an AI-powered platform used by enterprise sales teams. You will own end-to-end features and work across React/Next.js, TypeScript, Node/NestJS, TailwindCSS, and Python FastAPI services powering ML workflows.

You will collaborate with founders and engineers in a fast-paced early-stage startup, taking ownership of product and architecture while contributing to rapid growth and high-performance

Qualifications

• Experience in building full-stack applications in a startup environment.
• Ability to own product and architecture decisions.
• Strong knowledge of modern JavaScript/TypeScript frameworks.

Responsibilities

• Build and ship end-to-end features using React/Next.js, TypeScript, and Node/NestJS.
• Create polished, responsive UIs with TailwindCSS.
• Integrate Python FastAPI services powering ML workflows.
• Own performance, scalability, and code quality across the stack.
• Collaborate with founders and engineers in a fast-paced startup environment.

Skills

Fast-paced environment

Ownership

Collaboration

Tools

React/Next.js

TypeScript

Node/NestJS

TailwindCSS

Python FastAPI

Job description

Hi there!

I’m working with a YC-backed AI/SaaS company creating an entirely new category in sales technology. Their platform acts as a Sales Performance OS, observing and scaling top-performer behavior to give enterprise sales teams a massive edge. They’ve just raised a $15M Series A, are valued at $90M and are growing ~20% month over month, and are entering a major scale-up phase.

The Role

They’re looking for a Full-Stack Engineer to join their on-site San Francisco team, helping build and scale a high-performance, AI-powered platform used by enterprise sales teams.

What you'll do

In this role you will build and ship end-to-end features using React/Next.js, TypeScript, and Node/NestJS, creating polished, responsive UIs with TailwindCSS and integrating Python FastAPI services that power ML workflows. You’ll own performance, scalability, and code quality across the stack while collaborating closely with founders and engineers in a fast-paced, early-stage startup environment, wearing multiple hats.

Why Join

You will take early ownership of the product and architecture, shaping the future of category-defining sales performance tech and work alongside an elite team of ex-YC founders and top engineers, driving rapid growth with over $1M in new ARR each month. This is also an incredible opportunity to accelerate your career, learning more in a year than most do in five.