Software Engineer

Responsibilities

• Develop order matching and trade execution algorithms and data structures
• Build high-performance data feeds and trading APIs for clients
• Maintain high-availability clearing systems including margining and collateral management
• Lead integrations with external market makers, brokers, and hedge funds
• Stress test large-scale critical systems for robustness and maintainability
• Optimize database access patterns and internal algorithms
• Design new market structures such as non-binary markets and futures
• Ship high-quality code at high speed

Requirements

• 4+ years of software engineering experience
• Experience planning and leading large projects with long-term impact
• Strong technical grasp of complex engineering problems
• Solid understanding of relational databases and transactions
• Familiarity with writing highly concurrent systems
• History of creating processes and tooling to increase engineering efficiency
• Excellent judgment on task prioritization

Preferred Qualifications

• Experience building financial systems, FIX API, or clearing infrastructure
• Proven experience building large-scale systems
• Interest in interacting directly with customers

About the Company

Kalshi is a prediction market platform that allows people to trade on the outcome of various events, turning questions about the future into financial assets. The company is building a next-generation financial ecosystem from the ground up.