[Remote] Senior Software Engineer, Exchange

Note: The job is a remote job and is open to candidates in USA. 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.ResponsibilitiesBuild and scale core exchange infrastructure - order matching, trade execution algorithms, and the data structures that underpin themBuild APIs and data feeds that clients depend on - REST, FIX, WebSockets - and make them fast and reliableDesign robust clearing infrastructure, position management, margining, and how money actually movesDrive technical relationships with our customers (market makers, traders, etc.)Hunt down performance bottlenecks - in databases, internal services, and anywhere latency is costing usPut systems under pressure before production does - rigorous testing of the things that can't go downHelp invent what prediction market structure looks like beyond what exists today - new contract types, new mechanics, etcMove fast, make calls, and own the outcome - we give real autonomy, which means real accountabilitySkillsAt least 5+ years of engineering experience, with a track record on high-performance, low-latency systemsStrong command of highly performant programming languages (C, Rust, C++, Go, Java, or similar) and the willingness and desire to flex into othersYou are product minded and scope well, you make good tradeoffs, and don't need hand-holdingDemonstrable experience thriving in fast-paced and ambiguous environments, where high-agency and ambition go hand-in-handExperience in TradeFi, prediction markets, crypto exchange infrastructure or SORBackground in sports, fantasy, or gamingProven experience building highly available, high-volume consumer-facing systemsDeep understanding of concurrency, threading models, and the tradeoffs in performance-sensitive systemsBenefitsUnlimited PTO for full-time employees (we're extremely flexible with the exception of the first few weeks before & into the NFL season)16 weeks of fully paid parental leaveHome office stipendA connected virtual-first culture with a highly engaged distributed workforce5% 401k match, FSA, company paid health, dental, vision plan options for employees and dependentsCompany OverviewUnderdog, the fastest-growing private sports company in the U.S., was founded in 2020 with the simple objective of making sports more fun. It was founded in 2020, and is headquartered in Brooklyn, New York, USA, with a workforce of 201-500 employees. Its website is https://underdogfantasy.com/.Company H1B SponsorshipUnderdog has a track record of offering H1B sponsorships, with 1 in 2024, 1 in 2023. Please note that this does not guarantee sponsorship for this specific role.