Senior Software Engineer, Sportsbook Platform

New

Remote, United StatesFull-TimeSenior

Salary$145,000 — $193,000 USD

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Job Details

Experience: At least 5 years of experience in software engineering, with most of it on backend or API systems. 2+ years designing and evolving APIs used by multiple clients (iOS, Android, web), including versioning and backward compatibility.
Required Skills: GitDatadogDistributed Systems

Have at least 5 years of software engineering experience, with most experience in backend or API systems.
Have 2+ years designing and evolving APIs used by iOS, Android, and web clients, including versioning and backward compatibility.
Have hands-on, daily experience building software with AI coding agents such as Claude Code, Cursor, or Copilot agents; be able to describe prompting, constraints, testing, review, and agent limitations.
Have experience building real-time features such as subscriptions, streaming, or push-based updates.
Have a foundation in computer science, including data structures, distributed systems, algorithms, and software design.
Have experience diagnosing and fixing production performance regressions involving CPU, I/O, memory, or latency through load testing and tracing.
Have experience on an on-call rotation for a production service and owning release cycles end to end.
Have experience with a server framework such as Phoenix, Ruby on Rails, FastAPI, Laravel, or Node.
Be willing to learn native iOS and Android development in Swift or Kotlin.
Have authored tech specs, runbooks, and cross-team design documents.
Be comfortable working in the terminal, with Git and GitHub or similar, and in an editor of your choice.

Design, scale, and tune APIs and their real-time delivery.
Treat API schemas as versioned contracts with released mobile apps; classify breaking changes and plan migrations with iOS and Android leads.
Build and operate services that remain fast and correct under high throughput and bursty load.
Find production bottlenecks and risks, and drive changes that improve platform scalability.
Set up and refine monitoring, alerting, and tracing in Datadog for owned systems.
Develop native Android and iOS features in Swift or Kotlin when needed, alongside the mobile teams.
Write thorough tests for features and bug fixes, and own features end to end from API to screen.
Debug problems across client and server boundaries and shape APIs around client needs, caching, and weak-network behavior.
Use AI coding agents to build software, directing the work and reviewing their output.
Draft proposals, tech specs, and runbooks; present them to leadership and partner teams; mentor teammates through reviews, pairing, and documentation.

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