Full Stack Engineer

Ridley Technologies, Inc.; Boulder (CO); On-site; USD 120,000 - 160,000; Full time

Job summary

Ridley is rebuilding the home transaction around the consumer. We're building an AI-native platform to redefine how homes are bought and sold, with AI tooling and modern cloud infrastructure at the core.

You’ll work directly with the CEO and founding team to shape architecture, product, and engineering culture from day one. You’ll own end-to-end features across the stack, collaborating with product, design, and legal to ship secure, scalable experiences.

Qualifications

• 3-5 years of experience building modern full stack applications at an early-stage startup.
• Deep expertise with React, Next.js, Node.js, and TypeScript.
• Hands-on experience building AI-powered applications using foundation models.
• Experience building agentic systems including retrieval, tool calling, memory & orchestration.

Responsibilities

• Own the design, architecture, and implementation of features across the stack from frontend to backend to cloud infrastructure.
• Build fast, intuitive user experiences with React, Next.js, and Tailwind.
• Develop scalable backend services with Node.js and AWS.
• Design and operate cloud infrastructure using AWS services (CDK, API Gateway, DynamoDB, Lambda, S3, etc.).
• Integrate AI-native product experiences by incorporating frontier language models into core workflows.
• Create agentic systems that use tools, memory, retrieval, and orchestration to complete complex tasks.

Skills

React

Next.js

Node.js

TypeScript

AWS

AI models

Agentic systems

Tooling & DevOps

Tools

Claude Code

Cursor

Codex

Copilot

Job description

Ridley is rebuilding the home transaction around the consumer.

Our mission is to eliminate the $100B homeowners lose every year to real estate commissions by replacing a fragmented, intermediary-driven process with AI. We believe software will become the primary interface for buying and selling a home, while human experts are brought in only where they create real value.

Backed by leading investors and with strong early traction, we're building the AI-native platform that will define the next generation of residential real estate.

The Role

We're looking for an exceptional Full Stack Engineer to help build the future of one of the world's largest industries.

You'll work directly with the CEO and founding team to design, build, and scale an AI-native product from the ground up. This isn't a role where you'll own a small corner of a mature codebase, you'll help define the architecture, product, and engineering culture of the company.

AI is central to how we build. We use the latest AI coding tools to move faster, automate repetitive work, and spend more time solving hard product and engineering problems.

What You'll Do

• Own the design, architecture, and implementation of features across the stack—from frontend to backend to cloud infrastructure.
• Build fast, intuitive user experiences with React, Next.js, and Tailwind.
• Develop scalable backend services with Node.js and AWS.
• Design and operate cloud infrastructure using AWS (CDK, CloudFront, API Gateway, DynamoDB, Lambda, SQS, SNS, Bedrock, S3, EC2, and Fargate).
• Build AI-native product experiences by integrating frontier language models into core user workflows.
• Design and implement agentic systems that leverage tool use, memory, retrieval, and orchestration to complete complex tasks on behalf of users.
• Work AI-first, using tools like Claude Code, Cursor, Codex, and Copilot to dramatically accelerate development while maintaining a high quality bar.
• Partner closely with product, design, and legal to ship secure, reliable, and scalable features.
• Improve our engineering systems, CI/CD pipelines, and developer tooling as the company grows.

What We're Looking For

• 3-5 years of experience building modern full stack applications, ideally at an early-stage startup.
• Strong experience designing and operating production systems on AWS.
• Deep expertise with React, Next.js, Node.js, and TypeScript.
• Hands-on experience building AI-powered applications using modern foundation models (Anthropic, OpenAI, Bedrock, or similar).
• Experience building agentic systems, including retrieval, tool calling, memory, evaluation, and multi-step orchestration.
• Fluent with modern AI development tools such as Claude Code, Cursor, Codex, or Copilot—you use them to multiply your output, not just generate code.
• Proven ability to design software architecture and make sound technical tradeoffs.
• Strong product instincts and a track record of shipping polished, end-to-end features.
• High ownership, excellent judgment, and the ability to move quickly through ambiguity.

Why Join Ridley

This is an opportunity to help redefine how millions of people buy and sell homes.

Ridley is already live with real customers, real revenue, and strong early momentum. We've been featured in The New York Times , The Daily , and CBS, and are backed by leading investors who believe, as we do, that AI will fundamentally reshape residential real estate.

If you want to help build the company that defines that future, we'd love to talk.