Responsibilities
- Design, develop, test, deploy, and monitor scalable full-stack product experiences.
- Contribute to frontend systems using React, Next.js, and TypeScript and backend systems using Go and event-driven architecture.
- Drive the technical evolution of the Markets platform in partnership with product, design, and platform teams.
- Own features from specification and implementation through instrumentation, deployment, monitoring, and metric-driven iteration.
- Design and implement feature flags and A/B testing capabilities.
- Integrate backend APIs and build reliable, observable systems.
- Conduct code reviews and improve code quality, readability, and maintainability.
- Use AI development tools to increase velocity while maintaining security, correctness, and performance.
- Establish and document standards for AI-assisted development, including prompts, review checklists, and validation strategies.
- Support an early-stage product by taking initiative, unblocking teammates, and defining processes.
Requirements
- More than 6 years of experience or Senior/Staff-level experience building highly scalable production systems.
- Experience building user-facing web applications with modern JavaScript or TypeScript and React, or backend services with Go, Java, or Python.
- Experience with React architecture, component-driven development, modern state management, Next.js, TanStack Query, Tailwind, or Zustand, or with backend data modeling and event-driven architecture such as Postgres and Kafka/PubSub.
- Deep knowledge of a primary programming language and ability to influence engineering standards.
- Strong understanding of frontend performance, responsive design, accessibility, and web standards, or backend scalability, observability, and correctness.
- Experience integrating backend APIs and collaborating with platform or infrastructure teams.
- Experience with CI/CD pipelines, testing strategies, and safe web application deployment practices.
- Demonstrated use of AI tools such as Claude Code, Codex, Cursor, or Copilot to ship production code.
- Ability to demonstrate measurable workflow improvements from AI-assisted development.
- Clear communication of complex technical concepts to engineers and stakeholders.
- Ability to collaborate cross-functionally in large enterprise environments and adapt to changing priorities.
- Preferred experience in early-stage or high-growth startups, open-source or technical communities, real-money transaction systems, regulatory compliance, developer tools, or engineering productivity.
- Preferred experience leading without authority and influencing technical direction across teams.
- A BSc in Computer Science or a related field is preferred.
Benefits
- Fully remote candidates based in the United Kingdom are welcome.
- Remote employees may be eligible for a home office setup stipend.
- Interview and onboarding may include in-person components, including onsite interviews or a multi-day cultural immersion in New York City, with details confirmed based on role and location.
- Visa sponsorship is not available.
Tech Stack
Categories
H1B sponsorship
Please note that visa sponsorship is not available for this position
Fanatics’s past filings provide context. They do not guarantee sponsorship for a current opening.
Verified yearly history is not available for this company.
Job fields receiving H1B certifications
A job-field breakdown is not available for this company.
Source: US Department of Labor
About Fanatics
Fanatics is committed to relentlessly enhancing the fan experience. As a leading global sports platform, Fanatics allows fans to buy, bet, and collect while engaging with sports in deeper, more immersive ways. Fanatics is redefining how fans connect with their favorite teams and players. Through its businesses—Fanatics Commerce, Fanatics Collectibles, Fanatics Betting & Gaming, Fanatics Events, Fanatics Markets, and Fanatics Studios—the company has built a powerful, integrated ecosystem. By bringing together licensed fan gear, physical and digital trading cards, live events, and more, Fanatics delivers personalized experiences to over 100 million fans worldwide. Fanatics currently holds partnerships with over 900 sports properties, including professional and college teams, leagues, players’ associations, and retail partners. Fanatics also partners with over 5,000 athletes and celebrities, including 250 exclusive partnerships, and has over 2,000 retail locations. Beyond these partnerships, Fanatics has its own powerhouse team of more than 22,000 global employees.