Senior Software Engineer - Backend

Fanaticsfbg · Londonsenior

En corto

▸Ingeniero backend senior que construye y escala servicios críticos para una plataforma de predicciones deportivas en crecimiento.
▸Trabajas con Go, IA como colaborador de código (Copilot, Claude, etc.) y sistemas que manejan millones de eventos diarios.
▸Destaca el uso avanzado de IA en desarrollo de producción, no solo pruebas.

Fluent English required for collaboration with global teams

En ~1 minuto te damos: quién te entrevista, las preguntas probables con respuestas desde tu CV, y tu CV adaptado a esta vacante. Gratis, sin tarjeta.

¿Qué piden?

✓Experiencia sólida en Go para backend
✓Liderazgo en diseño y desarrollo de servicios escalables
✓Experiencia con integración de datos en cadena (blockchain) y fuera de cadena
✓Uso activo de herramientas de IA para desarrollo (Copilot, Claude, Cursor, Codex)
✓Capacidad para gestionar sistemas end-to-end: desde diseño hasta monitoreo
✓Colaboración en prácticas de confiabilidad (SLOs, alertas, incidentes)

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

GoAWSPostgreSQLRedisKafkaDockerKubernetesGraphQLgRPCPrometheus

¿A quién escribirle en Fanaticsfbg?

Tu dossier gratis identifica a las personas que te entrevistarían — con su background, qué valoran y cómo escribirles para destacar antes de aplicar.

About Us 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 Sportsbook 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. About Fanatics Markets: 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. Overview: This Software Engineer III (Backend) role is a senior-level IC with significant ownership over the web application that customers use to interact with our product. You ll join a product at an exciting early stage, helping shape its evolution as we continue to build core features, scale the platform, and refine the technical foundations. You ll lead by example, establishing best practices for AI-assisted development while building systems that can handle millions of events daily. On the engineering side, we re pioneering the use of AI as a code collaborator. We need engineers who have gone beyond experimentation—who actively use Claude Code, Cursor, Codex, GitHub Copilot, or similar tools to ship production code faster while maintaining exceptional quality standards. Responsibilities: • Lead the design, development, testing, and deployment of scalable, high-quality backend services in Go • Drive the technical evolution of our markets and trading backend, partnering with product and other engineering teams to deliver robust, observable, and maintainable systems • Own services and features end-to-end: spec writing → implementation → instrumentation → deployment → monitoring → iteration based on metrics • Design and implement experimentation capabilities (feature flags, A/B tests) to validate ideas quickly and safely • Model and manage data for markets, orders, and transactions with a focus on correctness, integrity, and auditability • Integrate on-chain and off-chain data sources, building reliable pipelines for blockchain event ingestion and querying • Collaborate on reliability practices including on-call participation, SLO definition, alerting, and incident response • Conduct thorough code reviews, raising the bar on code

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