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Senior Software Developer

Aristocrat· London, United Kingdom
Posted 23 Apr 2026Java Developer
AristocratPublishingfounded 2011
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As a Senior Software Engineer (Backend), you will play a key role in designing and building scalable, cloud-based services using Java and Spring Boot. You’ll work closely with your manager, architecture team and teammates to deliver high-quality backend systems that power critical business functionality.

In this role, you are expected to lead by example through strong technical execution, thoughtful system design, and a commitment to engineering excellence. As a senior engineer you will contribute to architectural decisions, mentor other engineers, and help drive continuous improvement across the team.

What You’ll Do

Design, build, and maintain robust backend services using Java and Spring Boot

Collaborate with your manager, business units and peers to deliver features on time and aligned with business priorities

Contribute to system design and architecture discussions, ensuring scalability, reliability, and maintainability

Write clean, efficient, and well-tested code, and participate actively in code reviews

Help break down complex problems into actionable technical solutions

Partner with product and cross-functional stakeholders to clarify requirements and translate them into technical implementations

Mentor junior engineers and contribute to a culture of learning, ownership, and accountability

Identify and address technical debt while balancing short-term delivery needs with long-term platform health

Support production systems, including troubleshooting issues and participating in on-call rotations as needed

Contribute to improving engineering processes, tools, and best practices

What We're Looking For

5–8+ years of professional software development experience

Strong hands-on experience building backend systems using Java and Spring Boot

Experience designing and implementing distributed systems or service-oriented architectures

Solid understanding of RESTful APIs and backend service design principles

Strong problem-solving skills and ability to work independently on complex technical challenges

Effective communication skills and ability to collaborate across teams

Proven track record of delivering high-quality, production-ready software

Nice to Have

Experience with AI-based software engineering including agent-based development, assisted/automated code reviews, etc.

Experience working with cloud platforms such as AWS, GCP, or Azure

Experience with microservices and event-driven architectures

Familiarity with CI/CD pipelines, infrastructure as code, and DevOps practices

Experience with performance optimization, scalability, and reliability engineering

Prior experience mentoring or leading other engineers

Exposure to observability tools, monitoring, and on-call practices

Why Aristocrat?

Aristocrat is a world leader in gaming content and technology, and a top-tier publisher of free-to-play mobile games. We deliver great performance for our B2B customers and bring joy to the lives of the millions of people who love to play our casino and mobile games. And while we focus on fun, we never forget our responsibilities. We strive to lead the way in responsible gameplay, and to lift the bar in company governance, employee wellbeing and sustainability. We’re a diverse business united by shared values and an inspiring mission to bring joy to life through the power of play.

We aim to create an environment where individual differences are valued, and all employees have the opportunity to realize their potential. We welcome and encourage applications from all people regardless of age, gender, race, ethnicity, cultural background, disability status or LGBTQ+ identity. EEO M/F/D/V

World Leader in Gaming Entertainment

Robust benefits package

Global career opportunities

Our Values

All about the Player

Talent Unleashed

Collective Brilliance

Good Business Good Citizen

Travel Expectations

None

Additional Information

At this time, we are unable to sponsor work visas for this position. Candidates must be authorized to work in the job posting location for this position on a full-time basis without the need for current or future visa sponsorship.