Senior Software Engineer - Predict

MetaMask is hiring a Senior Software Engineer for its Predict team, which integrates prediction markets into the MetaMask platform. The role builds user-facing features and backend infrastructure for secure prediction-market activity, including real-time data, transaction signing, and on-chain integrations.

Responsibilities:

• Designing and implementing the front-end components and user experience for prediction market interactions across MetaMask clients
• Developing robust and scalable backend services and APIs to fetch real-time market data, manage user positions, and facilitate transaction signing
• Ensuring seamless and secure integration with on-chain prediction market protocols
• Optimizing the performance and security of all Predict features, handling real-time data feeds and high-volume transaction throughput

Requirements:

• 3+ years working with mobile-based technologies
• 3+ years building websites and/or applications
• Experience with React and React Native
• Strong knowledge of modern Javascript (ES6/TypeScript/etc.)
• Familiarity with blockchain fundamentals and Web3 integration
• Working knowledge of cross platform/browser compatibility
• Experience working with APIs and middleware services
• Experience working in an agile development team
• Experience developing applications with clean code practices, testing, and adherence to coding standards
• Understanding of web-based security considerations
• Experience with prediction markets, token trading and/or sports betting
• Experience with DeFi protocols, especially prediction markets
• Knowledge of financial products in the digital space
• Interest in blockchain technologies and Web3
• Basic understanding of cryptography principles
• Experience working in distributed teams
• Previous experience working in Web3
• Familiarity with the Web3 wallet ecosystem
• Experience with performance optimization