Backend Engineer (Core)

Summary

Join Kalshi, a federally regulated exchange where people can trade on any event, as a software engineer to work on various platforms, including core exchange, clearinghouse, API infrastructure, and more.

Requirements

• 4+ years of software engineering experience
• Experience planning and leading large projects with long-term impact on a single system or team
• Strong technical grasp and ability to tackle complex engineering problems that deliver results
• Solid understanding of relational databases and transactions
• Familiar with writing highly concurrent systems
• History of creating and applying new processes and tooling to increase engineering efficiency
• Excellent judgment on task prioritizations
• Growth mindset, with a high slope and eagerness to lean
• Love of the craft: you genuinely care and put your all into your work

Responsibilities

• Build order matching and trade execution algorithms and data structures
• Develop high-performance data feeds and trading APIs for clients
• Design high guarantee and availability clearing systems, including margining, collateral management, and banking integrations
• Lead integrations with external market makers, brokers, and hedge funds
• Stress test large-scale critical systems to ensure their robustness and maintainability
• Optimize database access patterns and internal algorithms to improve the performance of our different services
• Design new market structures (e.g., non-binary markets, scalars, futures, etc.)
• Be close to the customer (define features, ship products, iterate)! Even the backend can choose to be close to customers depending on the project
• Ship fast and with high quality
• Make decisions: we give a lot of flexibility, which also means no spoon-feeding

Benefits

Salary Range: $100,000 to $200,000 annually plus equity and benefits