Job Title: Senior Backend Developer Location: Leeds ( 1- day onsite per week) Duration: 6 Months Description: About the Role Join our US Product Development team, where we build innovative retail systems for Sportsbooks and hotel check-in kiosks across the US. As a senior developer, you’ll lead backend development, mentor engineers, and shape the future of our technology stack. We’re looking fora collaborative, results-driven professional who values simplicity, ownership, and continuous learning. Key Responsibilities Technical Leadership Design and build Java microservices using modern Java and Spring Framework Architect scalable, fault-tolerant, high-performance systems Lead initiatives to improve code quality, reduce technical debt, and enhance CI/CD pipelines Promote functional programming and internal open-source practices Mentor junior and mid-level developers, fostering a culture of growth and excellence Facilitate team debugging and problem-solving sessions Strategic Impact Influence architecture and technical direction across the team Write clean, maintainable code that supports long-term scalability and team contributions Define and uphold development standards and best practices Lead and participate in production support, including on-call rotation Collaboration & Delivery Work closely with QA to ensure high-quality software delivery Contribute to a culture of continuous improvement and innovation Collaborate across teams and time zones to deliver impactful solutions Help drive the evolution of next-generation sports betting technology What You’ll Bring Experience 5 years of professional Java development experience Deep expertise in Spring Framework and microservices architecture Proven ability to mentor and develop engineering talent Strong background in messaging systems (Kafka, RabbitMQ) Proficiency with AWS, Docker, SQL/NoSQL, and automated testing Experience in Agile environments with a DevOps mindset Mindset & Skills Ownership mentality with a focus on delivering customer value Strategic thinker with a bias for action and simplicity Passionate about learning, teaching, and raising the bar Comfortable working flexibly to support US-based teams Strong communicator and effective collaborator across disciplines Bonus Points Degree in Computer Science or related field Experience with Python, TypeScript, Scala, or GraphQL Familiarity with advanced AWS services and hardware interfaces