Polymarket operates a large-scale prediction market protocol where users trade on real-world outcomes using on-chain infrastructure. The Smart Contract Engineer will join the core protocol team and own the design, development, and deployment of Solidity smart contracts that secure and operate high-volume peer-to-peer markets.

This role focuses on building and maintaining protocol-level functionality, improving developer tooling, and addressing security risks in live production systems. The engineer collaborates closely with other engineers and cross-functional partners, contributes to architectural decisions, and responds to real-world vulnerabilities as the protocol evolves across Ethereum and related EVM ecosystems.

🔹 Responsibilities

Design, implement, and deploy secure Solidity smart contracts used in production markets
Contribute to protocol infrastructure, tooling, and new feature development
Investigate security issues, model attack scenarios, and implement mitigation strategies
Participate in code reviews to ensure contract quality, security, and maintainability
Track EVM developments and apply relevant best practices to the protocol
Mentor other engineers and collaborate with product, design, and operations teams

🔹 Requirements

4+ years of experience writing and deploying Solidity smart contracts in production
Strong understanding of the EVM, DeFi protocols, and decentralized application architecture
Security-focused mindset with experience identifying and preventing vulnerabilities
Proven ability to ship reliable code in fast-moving environments
Strong problem-solving and communication skills
Interest in DeFi, Ethereum, and advanced on-chain systems
Bonus: experience with prediction markets
Bonus: experience with formal verification or advanced Solidity security techniques
Bonus: open-source DeFi contributions
Bonus: familiarity with multiple EVM chains and bridging solutions

🔹 Compensation & Benefits

Competitive salary and equity
Unlimited PTO
Health, vision, and dental coverage
401(k) match
Hardware setup including MacBook Pro, external display, and accessories

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