Software Engineer, Polymarket US

Responsibilities

• Build tools for US exchange operations, including systems for control desk operators, supervisors, and compliance teams to manage high-volume payment processing and reconciliation workflows.
• Ship production features regularly in a fast-paced, regulated environment.
• Work across the full stack: build frontend interfaces for operational dashboards and backend APIs for transaction processing, reconciliation, payment provider integrations, and control desk operations.
• Collaborate with operations, compliance, and product teams to understand workflows, gather feedback, and iterate quickly.
• Design for scale and compliance, handling thousands of daily transactions with audit trails and CFTC regulatory requirements.
• Contribute to technical decisions, architecture discussions, code reviews, and best practices.

Requirements

• 3-7 years of professional software development experience.
• Strong full-stack web development skills with TypeScript.
• Strong backend experience with Go.
• Solid experience with React and Node.js (Next.js a plus).
• Experience building data-heavy applications or internal tools.
• Ability to work with external APIs and integrate third-party services.
• Strong collaboration and communication skills with non-technical stakeholders.
• Bias for action, comfortable shipping iteratively.
• Builder's mindset for solving real operational problems.

Nice-to-Haves

• Experience with MongoDB.
• Background in fintech, payments, reconciliation systems, or regulated environments.
• Familiarity with customer service or operations tooling.
• Understanding of financial data modeling and audit requirements.
• Bachelor's degree in Computer Science or equivalent.

Benefits

• Competitive salary & equity.
• Unlimited PTO, Health, Vision, & Dental coverage.
• 401k match.
• Hardware setup: new MacBook Pro, big display, & accessories.