Java Developer

I’m interested


London, UK

Contract type




Job description

Mid and Senior Java Developer Opportunities


We have some exciting opportunities for Mid and Senior Java Developers to join our growing team here at William Hill.  

About Us 


Working with us, you'll be at the heart of the technological revolution of one of the world's most trusted betting and gaming companies. We deal with projects ranging from mobile Casinos to online Sportsbooks and everything in between. The cloud-native software you design will process 500 online bets per second, accommodate 20 million users, and process 160 terabytes a day. You can be sure there are many more challenges waiting for you. 


Our people are at the heart of everything we do, and we offer a fast-paced environment where we have fun, celebrate success, and give you all the tools you’ll need to be your best self. It’s not just our colleagues we look after – we’ve got a responsibility to our customers too and we work hard on our ambition that nobody is harmed by gambling 



Your role in the team


Our teams are working on a number of exciting projects including building the next generation Sports Betting platform that optimizes flexibility, performance, responsiveness and resiliency. The technologies we like to use include Java, SpringBoot, Kafka, Cassandra, Postgres, Kubernetes, AWS, Postgres, etc.


We're looking for experienced Java Developers to work within an agile team. You will deliver high-quality, customer-focused, software to exceed the customer's expectations. You will be active in all phases of the development lifecycle.


You’ll design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance. You’ll contribute in all phases of the development lifecycle. This will involve writing well designed, testable, efficient code and making sure designs are in compliance with specifications. You’ll also prepare and produce releases of software components, and support continuous improvement by investigating alternatives and technologies and presenting these for architectural review. 


You will:


  • Build efficient and reusable systems and abstraction
  • Develop prototypes
  • Work with microservice on the backend
  • Work on CI/CD
  • Keep the high-level of test coverage in the team across multiple codebase (>95%)
  • Include security mindset as part of delivery
  • Work on integrating with external systems
  • Write integration tests



Skills needed


We're looking for experienced Java Developers who are curious and open minded when it comes to technology. You'll need to bring a positive, collaborative attitude and some decent commercial development experience from an Agile/DevOps environment. You're familiar with the full SDLC of an application, contract-first development, and also confident with CI/CD and monitoring tools.


It is important that you have a fundamental understanding of Java, and the Java ecosystem.


You will have:


  • Experience in a similar role
  • Experience in gRPC (some roles)
  • Insight of Java 8
  • Experience with test-driven development
  • Experience with Time Series database (KDB, InfluxDB, etc) (some roles)
  • Good knowledge of RDBMS (Postgres, MySQL)
  • Experience with Kafka
  • Experience building low latency application
  • Familiarity with various microservice patterns




We have a variety of roles and familiarity with some of these concepts will be beneficial (dependent on the team and project)


  • Knowledge of Scrum methodology
  • Experience with Kubernetes native java framework (Quarkus
  • Experience with Micro service CQRS architecture
  • Experience with Graph database (Neo4J, Memgraph)
  • Experience with Envoy/Istio and Kubernetes
  • SpringBoot
  • Cassandra (or other NoSQL databases)
  • Docker
  • GitLab (or other SCM platform)
  • GitLab CI (or other CI/CD tooling)
  • New Relic (or other monitoring platforms)
  • Splunk (or other logging platforms)
  • AWS Lambdas
  • ISTIO (or other service meshes)
  • Terraform (or other infrastructure as code tooling)
  • OpenAPI (or other contract first approach with APIs)


What we offer


We take the safety and wellbeing of our employees seriously, especially at this challenging time. We have put in place robust Covid19 measures and are supporting our new employees with a smooth onboarding and training programme and making you feel welcome and part of our team.


We are welcoming our teams back to the office, however, we want to offer a balanced approach to office and home working - now and for the long-term future. We know that not everyone is the same, many people have embraced home working, whilst others can’t wait to get back. Therefore, we are offering our employees the opportunity to work from home up to 80% of the time with 20% of office time built in to ensure we get some face to face collaborative team time -  and the chance for a coffee and a catch up!


We’ll welcome you on-board with 25 days holiday (not to mention 8 bank holidays and an extra day for your birthday), a rewarding bonus scheme, healthcare (or a cash alternative), an attractive pension package, life assurance, healthy gym discounts and a flexible benefits scheme. Plus, our season ticket loan and handsomely discounted Zone 1-6 Oyster card will save you money getting to work and getting around town. And if you see the journey to work as part of your fitness regime, you’ll just love our Cycle to Work scheme.


William Hill in London

We couldn’t be closer to the action in our London office. A 2-minute walk from Tottenham Court Road station, round the corner from Soho and Oxford Street means you’ll never be short of anywhere to go for a lunchtime stroll or a post-work drink. There’s plenty of green space too with Regent’s Park and Hyde Park not far away at all. Working in our London office you’ll also benefit from a heavily discounted Zone 1 – 6 travel card so you’ll be whizzing around London in no time.


Join us #behindthebet