Senior Software Engineer, Exchange

Underdog is a rapidly growing sports company focused on creating engaging products for sports fans. The Senior Software Engineer will design, build, and scale the core infrastructure of the exchange, ensuring high performance and reliability for critical systems used in prediction markets.

Responsibilities:

• Build and scale core exchange infrastructure - order matching, trade execution algorithms, and the data structures that underpin them
• Build APIs and data feeds that clients depend on - REST, FIX, WebSockets - and make them fast and reliable
• Design robust clearing infrastructure, position management, margining, and how money actually moves
• Drive technical relationships with our customers (market makers, traders, etc.)
• Hunt down performance bottlenecks - in databases, internal services, and anywhere latency is costing us
• Put systems under pressure before production does - rigorous testing of the things that can't go down
• Help invent what prediction market structure looks like beyond what exists today - new contract types, new mechanics, etc
• Move fast, make calls, and own the outcome - we give real autonomy, which means real accountability

Requirements:

• At least 5+ years of engineering experience, with a track record on high-performance, low-latency systems
• Strong command of highly performant programming languages (C, Rust, C++, Go, Java, or similar) and the willingness and desire to flex into others
• You are product minded and scope well, you make good tradeoffs, and don't need hand-holding
• Demonstrable experience thriving in fast-paced and ambiguous environments, where high-agency and ambition go hand-in-hand
• Experience in TradeFi, prediction markets, crypto exchange infrastructure or SOR
• Background in sports, fantasy, or gaming
• Proven experience building highly available, high-volume consumer-facing systems
• Deep understanding of concurrency, threading models, and the tradeoffs in performance-sensitive systems