Senior Java Software Engineer

Explore Group; Greater London; Hybrid; GBP 90.000 - 140.000; Vollzeit

Benefits dieser Stelle

Performance bonus

Private health cover

Learning and development budget

Zusammenfassung

Explore Group in London is expanding its engineering team and seeks a Senior Java Full-Stack Engineer to own core betting engines, real-time data feeds, and ultra-responsive front-end experiences.

You will architect, build, and maintain low-latency microservices, collaborate with cross-functional teams, and lead technical decisions to ensure reliability during peak events.

Qualifikationen

• Proven experience delivering real-time backend systems in high-availability environments.
• Strong understanding of microservices, REST APIs, and event-driven architectures.
• Hands-on expertise with Kafka, WebSockets, and caching layers (Redis/Hazelcast).
• Experience with cloud platforms (AWS/GCP) and container orchestration (Kubernetes).
• Familiarity with regulatory considerations in iGaming or fintech domains is a plus.

Aufgaben

• Own architecture and delivery of low-latency backend services for real-time betting engines.
• Develop high-performance front-end interfaces in collaboration with UX and dev teams.
• Drive automated testing (unit/integration/E2E) and code reviews across squads.
• Partner with Product, DevOps, QA to ship robust features end-to-end.
• Ensure system resilience, security, and compliance in high-traffic events.

Kenntnisse

Java 17+

Spring Framework

Real-time systems

Kafka

WebSockets

RESTful Microservices

TDD/BDD

Cloud (AWS/GCP)

Kubernetes

Redis

PostgreSQL

Ausbildung

Bachelor's degree in Computer Science or equivalent

Tools

Spring Boot

Docker

CI/CD pipelines

Jobbeschreibung

We are an industry-leading iGaming and sports betting technology company, building high-throughput, real-time platform solutions that process millions of transactions daily across global markets.

We are expanding our engineering division in London and looking for a Senior Java Full-Stack Engineer to take ownership of core betting engines, real-time data feeds, and high-performance front-end user experiences.

• Location: London, UK (Hybrid)
• End-to-End Delivery: Architect, build, and maintain low-latency, scalable backend microservices alongside responsive, high-performance front-end interfaces.
• Core Systems Development: Drive features for real-time odds engines, betting placement, user wallets, live-streaming integration, and promotional tools.
• Performance & Scale: Optimize systems for ultra-low latency, high concurrency, and maximum reliability during peak sporting events.
• Technical Ownership: Lead architecture decisions, drive clean code practices, establish robust automated testing (unit/integration/E2E), and participate in code reviews.
• Cross-Functional Collaboration: Partner closely with Product Managers, UX Designers, DevOps, and QA engineers to deliver robust features end-to-end.
• Senior Backend Expertise: Extensive hands-on experience with modern Java (17+) and the Spring Ecosystem (Spring Boot, Spring Security, Spring Cloud).
• High-Throughput / Real-Time Systems: Practical experience with event-driven architectures using Apache Kafka, WebSockets, or similar messaging pipelines.
• Database & Caching Mastery: Solid experience with relational databases (PostgreSQL/MySQL) and high-performance caching strategies (Redis, Hazelcast).
• Cloud & DevOps: Familiarity with AWS/GCP, Docker, Kubernetes, and automated CI/CD pipelines.
• Engineering Standards: Deep understanding of RESTful APIs, Microservices architecture, TDD/BDD practices, and system resilience.
• Direct domain experience within iGaming, Sportsbook, or Fintech high-frequency transaction environments.
• Hands-on knowledge of regulatory compliance standards in online gaming (UKGC, MGA).
• Exposure to reactive programming (Spring WebFlux, RxJava).
• Collaborative engineering culture focused on modern tech stacks and technical excellence.
• Competitive salary, performance bonus, private health cover, and learning/development budget.