Senior Platform Engineer, Markets

Edinburgh, Scotland, United Kingdom;
Leeds, England, United Kingdom;
London, England, United Kingdom

Fanatics is building a leading global digital sports platform. We ignite the passions of global sports fans and maximize the presence and reach for our hundreds of sports partners globally by offering products and services across Fanatics Commerce, Fanatics Collectibles, and Fanatics Betting & Gaming, allowing sports fans to Buy, Collect, and Bet. Through the Fanatics platform, sports fans can buy licensed fan gear, jerseys, lifestyle and streetwear products, headwear, and hardgoods;

collect physical and digital trading cards, sports memorabilia, and other digital assets; and bet as the company builds its Sports book and iGaming platform. Fanatics has an established database of over 100 million global sports fans; a global partner network with approximately 900 sports properties, including major national and international professional sports leagues, players associations, teams, colleges, college conferences and retail partners, 2,500 athletes and celebrities, and 200 exclusive athletes;

and over 2,000 retail locations, including its Lids retail stores. Our more than 22,000 employees are committed to relentlessly enhancing the fan experience and delighting sports fans globally.

Fanatics Markets is the real-money prediction and trading app where you can invest in moments you care about. Built on a secure platform, we let users predict real-world outcomes and trade on events they actually follow—from sports and entertainment to political elections and beyond. Our mission is to redefine how fans engage with the moments and markets that matter most. We're looking for the right people to help us build the future of prediction markets.

Role Overview
As a Senior Software Engineer within our Platform team, you will help build and operate the platform underpinning our exchange and trading systems. You will adapt and evolve our infrastructure and platform standards to support a highly available, low-latency exchange, partnering closely with exchange engineers and engineering leads to enable rapid innovation without compromising stability or security.

This role requires a balance of deep hands-on software engineering and systems thinking. You will build tools, services and automation that support the exchange—from load-testing environments and mock integrations to monitoring and automated recovery. You will own projects from ideation to production and help operate the platform as the exchange goes live. The balance of coding and infrastructure work varies by project, but you should be comfortable independently developing new software as well as improving existing systems, championing best-in-class platform standards and mentoring mid-level engineers.

On the engineering side, we are pioneering the use of AI as a code collaborator. We need engineers who have moved beyond experimentation—who actively use tools like Claude Code, Cursor, or Git Hub Copilot to ship production code faster while maintaining exceptional quality.

• Design, build and maintain software tools, services and automation that solve complex infrastructure, reliability and developer experience challenges.
• Design, build and maintain highly available cloud-native infrastructure, ensuring the platform scales reliably with our growing user base.
• Build and optimize CI/CD pipelines and developer tooling to eliminate friction in the software delivery lifecycle.
• Develop load-testing environments and supporting software, including mock services and integrations.
• Implement team-level standards for AI-augmented development, using effective prompting and validation practices to increase velocity without sacrificing code quality.
• Identify and mitigate AI-generated code pitfalls, such as security vulnerabilities or over-abstraction, and assist in tracking team productivity metrics.
• Implement and maintain platform security safeguards and compliance standards to protect the integrity of the firm’s systems.
• Contribute to the system observability roadmap by implementing monitoring, tracing, alerting and automation to improve operational reliability.
• Partner with product and engineering teams to translate technical requirements into scalable platform solutions.
• Mentor junior and mid-level engineers, participate in the on-call rotation, lead incident response for team-owned services and deliver engineering…