Senior Software Engineer, Sportsbook Platform

Quick Facts

• Role: Senior Software Engineer (Sportsbook Platform)
• Focus: Backend APIs and real-time delivery across mobile apps and web

Description

Own the design, scaling, and tuning of APIs and real-time services powering sportsbook experiences on iOS, Android, and web. Treat the API schema as a versioned contract with released mobile apps, ensuring safe migrations and client model sync. Build reliable, high-throughput systems, improve observability with Datadog, and collaborate end-to-end from API to screen.

Responsibilities

• Design, scale, and tune APIs and real-time delivery services
• Version API contracts and plan migrations for iOS/Android while keeping client models in sync
• Build and operate services that remain fast and correct under high throughput and bursty load
• Identify production bottlenecks and performance risks; drive scalability improvements
• Set up and refine monitoring, alerting, and tracing in Datadog
• Develop native Android/iOS features when needed in Swift or Kotlin (alongside mobile teams)
• Write thorough tests for features and bug fixes
• Own features end to end (API to screen), including cross-client debugging
• Draft proposals, tech specs, and runbooks; present to leadership and partner teams
• Mentor teammates through code review and pairing

Requirements

• 5+ years in software engineering, mostly on backend/API systems
• 2+ years designing/evolving multi-client APIs (iOS, Android, web) with versioning and backward compatibility
• Daily hands-on experience using AI coding agents with clear prompting/testing/review processes
• Experience building real-time features (subscriptions, streaming, push-based updates)
• Strong CS foundation: data structures, distributed systems, algorithms, and software design
• Experience resolving production performance regressions using load testing and tracing (CPU, I/O, memory, latency)
• On-call experience for production services and ownership of release cycles
• Experience with a server framework (Phoenix, Ruby on Rails, FastAPI, Laravel, or Node)
• Clear writing: tech specs, runbooks, and cross-team design docs
• Willingness to learn native iOS and Android in Swift/Kotlin (prior mobile shipping is a plus)

Benefits

• Competitive compensation package
• Education and conference reimbursements
• Career progression opportunities and mentoring
• Fun, relaxed work environment