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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer (Igaming) - **Company:** Intellias - **Location:** Castro Caldelas, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Applications Architecture, Application Performance Management, Data Structures, Software Debugging, Software Design Patterns, Gradle, Java Web Services, Spring Framework, Apache Maven, Object-Oriented Software Development, Scaled Agile Framework, Software Engineering, SIGA, Backend, Git, Containerization, Build Tools, Api Design, Restful APIs, Software Version Control, Api Management, Docker - **Published:** September 19, 2026 - **Apply:** https://www.buscojobs.com.es/senior-java-developer-igaming-en-castro-caldelas-ID-372080276 ## About the Role We are looking for a Senior Java Developer to be a key player in building and optimizing backend services that power the platform. You will work on critical projects, including integrating a new feed supplier and developing a cashier module to manage platform cash flow. This role requires strong expertise in Java, high-performance backend development, and API integrations, with a focus on scalability and reliability within an Agile SAFe environment. Requirements: 5+ years of experience in Software Engineering. Strong knowledge of Java. Strong experience with the Spring Framework. Practical knowledge of software design patterns and data structures. Strong knowledge of object-oriented programming principles. Knowledge of application architecture principles. Understanding of JMM and GC. Familiarity with build tools such as Maven and Gradle. Familiarity with containerization tools such as Docker. Familiarity with version control systems such as Git. Strong knowledge of RESTful web services and API design. Fluency in Spanish is mandatory. English level at least at B2 level. ## Description Senior Java Developer (IGaming)Location: Remote from Spain (an indefinite Spanish employment contract)Siga leyendo para comprender completamente lo que este trabajo requiere en cuanto a habilidades y experiencia. Si su perfil encaja, presente su candidatura.Join a leading company in the sports betting and gaming industry, delivering cutting-edge digital experiences to millions of users. With a strong presence in Spain, the company is focused on scalability, high-performance applications, and innovation, ensuring a seamless customer experience across platforms.Project Overview:We are looking for a Senior Java Developer to be a key player in building and optimizing backend services that power the platform. You will work on critical projects, including integrating a new feed supplier and developing a cashier module to manage platform cash flow. This role requires strong expertise in Java, high-performance backend development, and API integrations, with a focus on scalability and reliability within an Agile SAFe environment.Requirements:5+ years of experience in Software Engineering.Strong knowledge of Java.Strong experience with the Spring Framework.Practical knowledge of software design patterns and data structures.Strong knowledge of object-oriented programming principles.Knowledge of application architecture principles.Understanding of JMM and GC.Familiarity with build tools such as Maven and Gradle.Familiarity with containerization tools such as Docker.Familiarity with version control systems such as Git.Strong knowledge of RESTful web services and API design.Fluency in Spanish is mandatory.English level at least at B2 level.Responsibilities:Design and develop high-quality Java-based applications.Create detailed technical specifications for applications.Troubleshoot and debug applications.Ensure applications meet performance and scalability requirements.Work closely with other teams to ensure the end product meets the client's needs.Monitor application performance and provide optimization recommendations.Stay up to date with the latest technologies and industry trends.Why this position:Opportunity to lead high-impact projects in a fast-growing company.SAFe Agile training and professional development opportunities. xiphtebCollaborative work environment with a normal squad setup and clear responsibilities. ## Related Videos - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)