Java Developer, Spring Boot

🕒 April 1

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LUMASERV

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2015

☁️ SaaS

🤝 B2B

🔒 Cybersecurity

SaaS • B2B • Cybersecurity

LUMASERV is a managed cloud software and operations company that helps organizations run, scale and secure complex applications in the cloud. The company provides cloud computing infrastructure, managed Kubernetes, hosting, domain services, and an API-driven interface for provisioning and auto-scaling, together with DDoS protection and ISO 27001–aligned security and compliance services. LUMASERV serves businesses and public-sector customers from its German offices and supports large-scale deployments used by millions of end users.

📋 Description

• Implement backend solutions using modern web frameworks, primarily Spring Boot • Design and develop RESTful APIs that integrate seamlessly with frontend applications and external systems • Write and maintain comprehensive automated software tests to ensure code quality and reliability • Collaborate with frontend developers to design efficient API contracts and data structures • Perform regular code reviews and help establish best practices within the team • Implement security best practices and prevent common vulnerabilities • Work with databases (MySQL, MariaDB, Redis) to design efficient data models and queries • Participate in technical planning sessions and contribute to architectural decisions

🎯 Requirements

• Extensive professional experience in Java backend development • Strong expertise with Spring Boot (or similar modern frameworks like Quarkus, Micronaut) • Solid understanding of object-oriented programming, dependency injection and design patterns • Experience with database design and optimization (MySQL, MariaDB, Redis) • Proficiency in writing automated tests (JUnit, Mockito) • Familiarity with HTTP REST interfaces and API documentation formats (Swagger/OpenAPI) • Experience with agile methodologies (Kanban, SCRUM) • Strong understanding of web security principles and common vulnerabilities

🏖️ Benefits

• Opportunity to shape the technical direction of projects • Freedom to contribute and implement your own ideas • Modern technical equipment • Short decision-making processes