Java Developer

Responsibilities

• Feature Development & Platform Evolution : Design and build new features for the DOOH platform, extending the architecture to support future capabilities on the roadmap.
• Collaboration & Delivery : Work closely with other developers, tech leads and product owners to understand requirements, discuss implementation options and ensure smooth integration across services.
• Code Quality & Standards : Follow established coding standards, development processes and best practices to produce clean, well-tested and maintainable code.
• Deployment & Support : Contribute to deploying services to production, troubleshooting issues and helping support and maintain production infrastructure as part of a team that owns its services.
• What You'll Love About This Role
• Think Big : Develop a world-class dynamic ad insertion platform that delivers personalised experiences for millions of people every day.
• Own It : Be part of an agile team with the autonomy to solve complex challenges and make impactful technical decisions.
• Keep it Simple : Build reliable, elegant solutions using a modern, scalable technology stack. Better Together : Work in a close-knit, collaborative team, partnering with technical and product stakeholders in a supportive environment.
• What Success Looks Like
• In your first few months, you'll have:
• Contributed high-quality code, following good development practices and participating actively in code reviews.
• Delivered new ad delivery capabilities that are live in production and seen by millions of people.
• Helped support and maintain production infrastructure as part of the team's "you build it, you run it" ethos.
• Worked with the team to shape the product roadmap, balancing platform improvements with new feature requests from the business.

Requirements

• Java & Backend Skills : Strong experience with modern Java (ideally Java 21), Spring Boot and relational databases.
• Event-Driven Systems : Experience with event-driven architectures and publish-subscribe systems such as Kafka or AWS SNS/SQS.
• Quality Mindset : A focus on writing well-tested, maintainable and observable code.
• DevOps & Cloud : Familiarity with CI/CD pipelines (e.g. Jenkins, Terraform) and cloud-based environments, ideally AWS EKS and Kubernetes.
• Collaboration & Learning : A proactive, collaborative approach and a willingness to learn and work with other languages and technologies across Global's ecosystem.

Additional Information

Accepting applications until: 31 July 2026 Job Description Your Role: Java Developer - Digital Out of Home Are you a Java Developer looking to be part of a team building cutting-edge, event-driven systems that power millions of digital advertising moments every day? As a Java Developer within our Digital Out of Home (DOOH) team, you'll help develop the programmatic advertising platform that powers all digital assets across Global's outdoor estate - from large roadside signs to the Transport for London network. You'll work with modern Java microservices (Java 21, Spring Boot) deployed on Kubernetes (EKS on AWS), using CI/CD pipelines (Jenkins, Terraform) and observability tools such as Prometheus and Grafana, on a platform that must run 24/7, 365 days a year.

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