Senior Backend Engineer – Building Scalable Java Systems in the Cloud

19 hours ago

Prague, Hlavní město Praha, Czech Republic Stats Perform Full time 120,000 - 240,000 per year
Description

At Stats Perform you'll power the real-time "Watch & Bet" experience used by sportsbooks and broadcasters world-wide. Your code will stream live matches, crunch trillions of data points, and feed AI models that set the in-play odds your friends see on screen. You'll join a friendly squad that's modernising a large-scale Java estate to cloud-native AWS, giving you green-field freedom on new services while solving juicy refactor challenges in legacy ones.

Why this role is exciting

  • Work on the real-time "Watch & Bet" experience used by sportsbooks and broadcasters worldwide.
  • Your code will stream live matches, process trillions of data points, and support AI models that generate in-play odds.
  • Join a collaborative team modernising a large-scale Java estate to cloud-native AWS.
  • Enjoy greenfield development opportunities alongside meaningful legacy system refactoring challenges.

Key responsibilities

  • Design, build, and run high-throughput backend services delivering live video, odds, and statistics to millions of users.
  • Lead the migration of on-premise systems to AWS and containerise workloads using Kubernetes.
  • Manage and evolve customer-facing APIs, including event distribution, geoblocking, and channel planning.
  • Collaborate with engineers across Europe and the US, mentor junior developers, and contribute to architecture decisions.

Tech stack you'll work with

  • Java 21 for new microservices, with some existing services on Java 11
  • Spring / Quarkus, Gradle, JUnit 5, REST and gRPC
  • AWS, EKS (Kubernetes), Terraform for infrastructure as code
  • Event-driven systems with Kafka and video streaming workflows
  • Python used occasionally for internal tools (a plus, but not required)

You'll thrive in this role if you

  • Write clean, efficient Java and are skilled in tuning backend systems for low-latency and high-throughput
  • Have experience deploying and operating services in the cloud (AWS preferred)
  • Are confident with containers, Kubernetes, and Terraform
  • Enjoy working with both greenfield and brownfield systems
  • Embrace agile practices like TDD, pair/mob programming, and CI/CD workflows
  • Communicate effectively in English for daily team calls (Czech is a plus)

What we offer

  • High-impact work seen by millions of sports fans every weekend
  • Career growth through training budgets, conference access, and mentorship
  • A remote-first work culture with "No-Meeting Fridays" and mental health days
  • A commitment to diversity, equity, and inclusion, including two annual volunteer days
  • A competitive salary package with annual bonus, private healthcare, and additional benefits

Diversity, Equity & Inclusion
At Stats Perform, we believe diverse teams build better products. We are committed to creating an inclusive, respectful, and welcoming environment where everyone thrives – on and off the field.

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