Backend Java Developer

About the Role As a Backend Developer, you’ll be the engine behind our server-side logic, building and optimising the robust infrastructure that powers our digital experiences. Working with a diverse range of business applications, you will ensure high performance and seamless integration across the stack. We are looking for someone who is passionate about seeking new opportunities to create impactful work through scalable and efficient Java-based solutions. Responsibilities: * Develop and maintain high-performance server-side logic using Java to ensure application reliability. * Collaborate with front-end developers, data analysts, and stakeholders to integrate user-facing elements. * Design and implement standardized APIs and RESTful services. * Manage database lifecycle, including setup, maintenance, and performance optimization. * Identify and resolve complex bugs and performance bottlenecks. * Write clean, scalable, and efficient code following Java best practices and modern patterns. * Participate in code reviews and cross-functional collaboration with QA, DevOps, and Product teams. * Document technical specifications and API processes to maintain a comprehensive development knowledge base. About Monks Monks is the global, digital-first, data-driven, unitary operating brand of S4 Capital plc. With a legacy of innovation and specialized expertise, Monks combines an extraordinary range of global Marketing and Technology Services to redefine how brands interact with the world. Through Monks.Flow, its flagship AI ecosystem for marketing orchestration, Monks transforms marketing into a growth engine, collapsing timelines and connecting brands to culture in real time. By deploying bespoke intelligent agents across disciplines and delivering culturally relevant, high-impact creative and digital solutions, Monks solves key critical business challenges across the entire brand enterprise to help brands sustain long-term impact. Monks was named a Contender in The Forrester Wave™: Global Marketing Services, ranks among Cannes Lions' Top 10 Creative Companies (2022-25) and remains the only partner featured in AdExchanger’s Programmatic Power Players list every year (2020-24). Named Adweek’s first AI Agency of the Year (2023) and The One Show’s inaugural AI Pioneer Organization, Monks was also awarded Business Intelligence Group’s 2025 Excellence in Artificial Intelligence Award in both the Organizational and AI Product categories. As a trusted partner to cutting-edge innovators in tech, Monks earned titles such as Optimizely Experimentation Partner of the Year (2025), runner-up for the Adobe Firefly Partner Award (2024), and Workato’s AI Visionary Customer Impact Award (2024). Additionally, Monks achieved a record-breaking number of FWAs and continues to hold the most of any partner.