Senior Backend Engineer

Super; Madrid; Presencial; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

Super in Madrid is seeking a seasoned Backend Engineer to design and develop a unified search platform that enhances user experience across multiple verticals. With a minimum of 6 years of engineering experience in distributed systems, the ideal candidate will have skills in backend languages like Python or Java, and experience with search technologies like Elasticsearch. As part of a strategic team, you will drive the architecture of a high-performance system serving millions and have opportunities for significant technical ownership.

Formación

• 6+ years of backend engineering experience in distributed systems or search domains.
• Proficiency in API design and microservice architecture.
• Experience integrating backend services into CI/CD pipelines.

Responsabilidades

• Design and implement distributed backend services for real‑time search.
• Build and optimize indexing and ranking pipelines.
• Mentor engineers across teams to enhance operational excellence.

Conocimientos

Backend engineering experience

Backend languages (Python, Kotlin, Java, Go, Elixir)

Experience with search technologies

Hands-on experience with streaming and data processing frameworks

Strong communication and collaboration

Educación

Bachelor’s or Master’s degree in Computer Science or related field

Herramientas

OpenSearch

Elasticsearch

Kafka

Grafana

Descripción del empleo

We are on a mission to pioneer the world’s next era of play. As we grow across Europe and Latin America, we’re building The Playstack – the technology powering the next generation of sports, gaming, and fan experiences. Join us, and help make it the most widely used platform in the world! From operations, to marketing, to product, we are looking for talented people who will shape how millions of customers play, watch, and connect every day.

About Superbet & Core Experience

Superbet is building the future of entertainment across Europe and Brazil. With millions of monthly active users and over €1B in annual revenue, our Core Experience area owns the surfaces that shape how players discover, play, and engage every day.

Explore tribe drives the experiences that help players find what they love – from our homepage and navigation to our search and discovery systems.

The mission

Today, our search experience is fragmented – each vertical (Sports, Casino, Superscore, Supersocial) maintains its own implementation, leading to inconsistent behavior, higher maintenance costs, and missed opportunities for discovery and conversion.

Your mission will be to design, build, and scale a unified search platform that connects these experiences into a single, high-performing system capable of serving millions of queries per day.

You’ll work at the intersection of backend systems, data pipelines, and relevance engineering — shaping how users find and explore content across products, platforms, and geographies.

What You’ll Do

• Design and implement distributed backend services that power real‑time search and discovery across multiple product verticals.
• Build and optimize indexing, retrieval, and ranking pipelines (e.g., combining BM25 keyword retrieval with vector embeddings and personalization signals).
• Partner with ML, Infra, and Product teams to evolve search relevance, ranking, and experimentation frameworks.
• Architect and evolve API contracts to support multiple clients (web, mobile, internal tools) with low-latency, high-availability performance.
• Drive the technical direction for Search — influencing architecture, observability, scalability, and cost efficiency.
• Contribute to a shared Search platform that other verticals (Sports, Casino, etc.) can extend and build upon.
• Mentor engineers across the Explore tribe, raising the bar for backend design and operational excellence.

Why this role matters

• Search is one of Superbet’s most strategic growth levers — driving discovery, engagement, and conversion across all experiences.
• You’ll shape the core architecture and evolution of a multi‑tenant search platform serving millions of players.
• You’ll have significant technical ownership and leadership visibility, collaborating directly with senior engineers, data scientists, and product leaders.
• You’ll be part of a team building the foundations for personalized, context‑aware, and experimentation‑driven search.

We are looking for

• 6+ years of backend engineering experience (preferably in distributed systems, data platforms, or search domains).
• Deep knowledge of one or more backend languages (Python, Kotlin, Java, Go, Elixir) and proficiency in API design and microservice architecture.
• Experience with search technologies (OpenSearch, Elasticsearch, Lucene, or vector databases such as Pinecone or FAISS).
• Familiarity with indexing pipelines, ranking models, embeddings, or relevance tuning.
• Hands‑on experience with streaming and data processing frameworks (Kafka, Spark, Flink, Airflow, etc.).
• Solid understanding of scalability, caching, and performance optimization in high‑traffic systems.
• Experience integrating backend services into CI/CD pipelines and monitoring via Datadog, Grafana, or similar tools.
• Strong communication, collaboration, and the ability to work effectively in cross‑functional teams.
• Bachelor’s or Master’s degree in Computer Science or a related field.

Bonus points

• Experience designing or operating multi‑tenant or cross‑domain platforms.
• Background in search relevance, feature stores, or personalization pipelines.
• Exposure to experimentation and A/B testing frameworks.
• Comfort with infrastructure‑as‑code (Terraform, AWS CDK) and container orchestration (Kubernetes).

About Super

We are a global technology group, dedicated to building the future of entertainment and fan‑centric experiences. With commercial markets in Brazil, Belgium, Poland, Romania, Greece and Serbia, and a network of offices across Spain, Croatia, Malta, Gibraltar, the Netherlands and the UK, we are a truly international organization. Our purpose at Super has evolved from sports and betting into creating the platform that stretches into the wider world of technology‑driven entertainment. With a growing and diverse team of more than 5,000 people, we create immersive, responsible, and personalised experiences for millions of customers worldwide.

Shaping the Future of Play

Everything we do at Super is rooted in doing what is right: for customers, for each other, and for our long‑term vision. Our Culture Manifesto is our North Star. It captures our purpose, mission, and the six core beliefs that shape how we think, make decisions, and act every day.

Super is committed to the highest standards of compliance, safety, and responsibility. As such, we are active members of the International Betting Integrity Association (IBIA) and the European Gaming & Betting Association (EGBA).

At Super, we operate as a high‑performing team. We hire and grow talent based on ability and potential, regardless of background and identity because we know diverse perspectives drive better performance.