About Pure
Pure is building the future of rare coin and precious metal trading.
We believe collectors and investors deserve better infrastructure for buying, selling, and managing physical assets. Rare coins and precious metals are still traded through outdated systems, opaque pricing, and offline relationships. Pure is changing that by building a modern marketplace focused on transparency, liquidity, and trust.
Started in 2023, Pure is one of the fastest growing marketplaces for tangible assets. We currently process over $50 million in transactions each month and are expanding quickly.
About the Role
We are looking for a Product Engineering Intern to join us for Summer 2027. You will work closely with our engineering, product, design, and operations teams to build real features across the Pure marketplace.
This is a hands-on internship. You will not be working on throwaway projects. You will help build tools and systems used by customers, sellers, and our internal team every day. Depending on your interests and experience, you may work on frontend product experiences, backend systems, databases, marketplace workflows, or internal operations tools.
What You Will Be Doing
Build and ship product features using TypeScript, Next.js, and PostgreSQL.
Work on marketplace features like product pages, order flows, seller tools, buyer experiences, and internal dashboards.
Turn product, design, and operational needs into simple, reliable software.
Improve internal tools used for accounting, logistics, operations, fraud review, monitoring, and marketplace management.
Work with engineers, designers, and operators to understand problems, shape solutions, and ship quickly.
Write clean, maintainable code and participate in code reviews.
Debug issues, improve performance, and help make our systems more reliable.
Learn how marketplace infrastructure works, including order books, auctions, payments, reconciliation, and data integrity.
Contribute to projects that directly impact customers, sellers, and internal teams.
Who You Are
Currently pursuing a degree in Computer Science, Software Engineering, or a related technical field, or have equivalent practical experience.
Have experience building software through internships, school, open source, hackathons, startups, or personal projects.
Comfortable with JavaScript or TypeScript.
Interested in product engineering and excited to work across frontend, backend, databases, and user-facing product experiences.
Have some experience with React, Next.js, Node.js, SQL, PostgreSQL, or similar technologies.
Can break down ambiguous problems and ask good questions.
Self-driven and eager to learn in a fast-moving startup environment.
Care about building useful products, writing quality code, and shipping quickly.
Enjoy thinking about how real users interact with the tools you build.
Bonus
Experience building marketplace, fintech, trading, or e-commerce products.
Experience with PostgreSQL, Redis, Go, Python, or backend systems.
Experience working with design systems, component libraries, or Tailwind CSS.
Interest in financial markets, collectibles, rare coins, precious metals, or alternative assets.
Experience building side projects or contributing to open source.
What We Offer
Real ownership over meaningful product and engineering projects.
Direct mentorship from the founding and engineering team.
Exposure to frontend, backend, database, marketplace, product, and operations systems.
A fast-moving startup environment where interns can make a visible impact.
Flexible work arrangements: remote, hybrid, or in-office in Los Angeles.
Daily lunches for in-office team members.
Potential opportunity to return full-time after graduation.
Technology
Frontend:
Next.js, TypeScript, Tailwind CSS
Backend:
TypeScript, Redis, Go, Python, PostgreSQL
We are building real-time order books and auction listings for thousands of products and sellers. We also integrate and organize large amounts of product and pricing data to improve the customer experience.
Why Join Pure
Pure is modernizing an industry that has stayed mostly offline for decades. You will work on real financial infrastructure for physical assets, help build products used by customers and operators every day, and learn what it takes to scale a marketplace from the inside.
We move fast and care about quality, reliability, and correctness. Ownership matters here. We want interns who are excited to learn, contribute, and ship real software.
If you are excited about startups, marketplaces, financial infrastructure, or building products from the ground up, we would love to hear from you.