We are seeking a Senior Software Engineer with more than 10 years of experience in designing and building Java applications with a proven track record of modernising legacy applications in regulated environments. In this role, you will drive cloud-based transformations, design microservices platforms, and mentor developers through complex technical transitions. Your expertise in cloud, DevOps, microservices, and API design will be critical in migrating customer data and ensuring high-performance, scalable, and compliant solutions. Experience in iGaming is a strong plus.
Lead the modernisation of legacy applications , ensuring they meet regulatory standards while improving performance, scalability, and maintainability.
Design, develop, and deploy cloud-native microservices on AWS.
Architect high-performance, large-scale applications in Java , optimising for efficiency, reliability, and security.
Cloud & DevOps Transformation
Drive cloud migration strategies , including lifting, shifting, and refactoring applications for cloud compatibility.
Implement DevOps best practices ,



such as CI/CD pipelines, infrastructure as code (IaC), and observability tools (e.g., Prometheus, Grafana, ELK).
Ensure seamless customer data migration between platforms, maintaining data integrity, security, and compliance.
Design and implement scalable microservices architectures in Java , leveraging RESTful APIs, with event-driven systems (e.g., Kafka, RabbitMQ).
Integrate AI-driven solutions to enhance application intelligence, automation, and user experiences.
Optimise API performance and ensure robust, secure, and well-documented interfaces.
Mentor junior and mid-level developers, fostering a culture of code quality, innovation, and continuous learning .
Compliance & Data Management
GDPR, PCI-DSS, or iGaming regulations).
Implement data protection best practices for managing and migrating customer data in compliance with industry regulations.
Work closely with legal and compliance teams to

📌 Senior Software Engineer C# (Barcelona)
🏢 LCKY Group
📍 Barcelona