Product Engineer

Description

As one of the first Product Engineers at the company, you’ll build the tools people use to buy and sell rare coins and precious metals. Your work will cover listings, trading, checkout, payments, and account features. You’ll work closely with design, growth, customer support, and product leadership to decide what to build and see it through to launch.

About the company

Much of this industry still runs on phone calls, spreadsheets, and relationships. We’re building a marketplace that makes pricing clearer and buying and selling easier.

Responsibilities

• Build marketplace features from start to finish, including backend services and customer-facing interfaces.
• Make technical decisions for listings, trading, checkout, payments, and account features.
• Build fast, accessible web experiences with TypeScript, React, and Next.js.
• Improve fraud prevention, risk detection, and payment and order reliability.
• Work with Growth on acquisition, onboarding, activation, and retention.
• Use customer feedback, product data, and input from our operations team to improve what you ship.
• Review code, contribute to architecture decisions, and help other engineers develop their skills.

Requirements

• You have 3+ years of experience building customer-facing software, ideally at a startup.
• You’re comfortable taking a feature from an initial idea through development, launch, and improvements.
• You have strong experience with TypeScript, React, and Next.js.
• You’ve built backend APIs and services with Node.js or a similar stack, using PostgreSQL or another relational database.
• You use data and customer feedback to understand whether a feature is working.
• You communicate clearly with technical and nontechnical teammates.
• You can make decisions and keep work moving when priorities change.
• Bonus
• Experience building marketplaces, fintech, commerce, or other products that handle transactions.
• Experience with payments, fraud detection, identity, or trust and safety systems.
• Experience building experiments, analytics tools, or growth features.
• Experience scaling web applications with high traffic.

Benefits

• Flexible work arrangements: remote, hybrid, or in-office in Los Angeles
• Medical and dental coverage
• 401(k) with employer match
• Daily lunches and a wellness stipend
• Skills: PostgreSQL, TypeScript, Machine Learning, Information Security, Software Security, Computer Vision, Marketing design, Next.js, AI Agents, AI Safety
• Experience: 3+ years
• Visa: US citizen/visa only