Senior Product Engineer

Polymarket is the world’s largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized “house,” Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future.

We're growing fast – both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.

Polymarket is looking for a product-obsessed full-stack engineer to join our product engineering team as it grows. The ideal candidate will have a keen eye for design, a deep understanding of modern front-end performance optimization, and a desire to impact a growing engineering organization. You will be involved in the entire product lifecycle, from user discussions and concept development to design, implementation, and iteration, with a high level of ownership and minimal bureaucracy.

We're looking for an experienced individual contributor who enjoys working alongside other experienced engineers and designers to quickly build and iterate on product.

• Build user-facing features. You'll build out new user-facing features with slick, efficient, and reusable React components.

• Talk to users. You’ll engage in regular communication with users to understand their needs, gather feedback, and incorporate their insights into product development.

• Self-direct your work & co-direct the product. You're a technical founder type and will take part in defining and architecting the long-term technical direction of the product engineering team.

• Cross-company collaboration. You’ll collaborate with engineers, designers, and stakeholders across the company to architect, build, launch, test, and improve features and systems.

• Improve monitoring & alerting infrastructure & practices. You'll be instrumental in enhancing our monitoring and alerting systems, ensuring that all critical issues are quickly and accurately identified. This will involve both optimizing existing processes and introducing new methodologies and technologies to improve our overall system reliability and responsiveness.

• Reinforce security, availability, performance, & scalability of the product. You’ll be responsible for ensuring our product meets the highest standards in all these aspects.

• Contribute to code reviews. You'll play a critical role in maintaining the high quality of our codebase by providing feedback and suggestions on others' work during code review sessions.

• 5+ years of professional software development experience

• Strong knowledge of Typescript, Javascript (ES6+), CSS (media queries, animations and/or modern animation libraries)

• Experience working with React & NextJS

• A deep understanding of modern state management patterns, caching strategies, & libraries (notably React Hooks/Context, React Query, Zustand, Mobx or Recoil)

• An entrepreneurial mindset with the ability to bring an idea or vision to life.

• A passion for the blockchain, decentralized finance, & freedom of speech.

• (Plus) Experience working with &/or implementing normalized caching strategies

• (Plus) Experience working with RSC

• (Plus) Previous experience working with data-intensive applications

• (Plus) Previous development experience in the blockchain, crypto, or financial industries (familiarity with wagmi, ethers.js etc)

• (Plus) Have used Polymarket (or other prediction markets) & understand how they function

• (Plus) Bachelor’s degree in Computer Science or equivalent

• Competitive salary & equity

• Unlimited PTO, Health, Vision, & Dental coverage

• 401k match

• Hardware setup — new MacBook Pro, big display, & accessories.