Senior Full Stack Engineer

Radley James; San Francisco (CA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive compensation

Equity

High ownership culture

Significant growth opportunities

Job summary

Radley James is seeking a Senior Full Stack Engineer in San Francisco to join a rapidly scaling AI company. You'll contribute to building and scaling real-time, AI-powered products in a high-ownership engineering environment.

Your role will involve designing backend services, working across the full stack, and collaborating with product teams to deliver impactful software. This position offers competitive compensation, equity, and significant opportunities for personal and professional growth.

Qualifications

• Proven experience in production environments.
• Strong ability to move across the tech stack.
• Experience building scalable, user-facing applications.

Responsibilities

• Build and scale full stack applications.
• Design backend services and APIs.
• Ship features quickly alongside product and design teams.
• Contribute to architecture decisions and reliability.
• Establish engineering best practices.
• Mentor engineers.
• Understand workflows for product improvements.

Skills

Full stack engineering experience

Communication skills

Collaboration skills

Product mindset

Experience with frontend + backend systems

Tools

TypeScript

React

Python

Go

Cloud infrastructure

Modern AI tooling

Job description

We’re partnered with a rapidly scaling AI company transforming one of the world’s largest and most operationally complex industries through intelligent automation and workflow software. Their platform is already used at significant scale across the US, with strong growth, major enterprise adoption, and backing from some of the top investors in technology.

They’re now hiring a Senior Full Stack Engineer to join one of the company’s fastest-growing AI product teams in San Francisco.

What you’ll be working on

You’ll help build a real-time, AI-powered product used daily by professionals in high-impact environments. The work spans frontend, backend, integrations, and infrastructure — from live audio/data processing through to highly responsive user experiences and complex system integrations.

This is a high-ownership role in a fast-moving engineering environment where product velocity and user impact matter.

What you’ll do

• Build and scale full stack applications across web and mobile-adjacent systems
• Design backend services, APIs, and integrations for AI-powered workflows
• Work closely with product and design teams to ship features quickly
• Contribute to architecture decisions, performance improvements, and reliability
• Help establish engineering best practices around testing, deployment, and scalability
• Mentor engineers and contribute to technical direction across the team
• Work directly with end users to understand workflows and improve product experience

What they’re looking for

• Strong full stack engineering experience in production environments
• Experience across modern frontend + backend systems
• Comfortable moving across the stack and owning features end-to-end
• Strong product mindset and ability to balance speed with quality
• Experience building scalable, user-facing applications
• Strong communication and collaboration skills

TypeScript, React, Python, Go, cloud infrastructure, and modern AI tooling.

Why this role

• High-growth AI company with real production scale
• Product used daily in mission-critical workflows
• Strong engineering culture with high ownership
• Significant opportunity for growth and impact
• Competitive compensation + equity
• Based onsite in San Francisco

If you enjoy building fast-moving AI products with real-world impact at scale, this is an excellent opportunity to join a category-defining team early in its growth curve.