Mid-level Java Developer
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Job Summary
- Application Deadline: Feb. 28 2026
- Vienna
- Hybrid
- Hourly salary: $50 - $70
Job Description
Key Responsibilities
- Design develop test and maintain backend services and APIs using Java and Spring Boot
- Ensure high performance availability security and responsiveness of backend systems
- Collaborate with cross-functional teams to define requirements and deliver new features
- Identify performance bottlenecks troubleshoot issues and implement effective solutions
- Maintain high standards of code quality organization documentation and automation
- Contribute to architectural decisions system scalability and service reliability
- Support CI/CD pipelines and deployment processes
- Apply sustainable coding practices and consider energy-efficient system design
- Continuously evaluate and adopt new tools technologies and best practices
Required Skills & Qualifications
- Strong experience with Java 17 or higher (classroom and/or professional experience)
- Solid understanding of Spring Framework / Spring Boot
- Experience developing microservices-based architectures
- Proficiency in web applications and web services (RESTful APIs)
- Good understanding of networking concepts and how they affect application behavior
- Experience with SQL databases and integrating applications with relational databases
- Strong knowledge of source control systems (Git or SVN)
- Familiarity with standard development workflows including build test and deployment
- Comfortable troubleshooting complex interconnected systems across environments
- Understanding of application scaling performance tuning and service dependencies
- Experience working in Agile/Scrum environments
- Demonstrated ability and willingness to learn new technologies
Required Experience:
Manager
Key Skills
- REST
- Eclipse
- JSP
- Junit
- Spring
- Struts
- Jpa
- Hibernate
- Maven
- J2EE
- Jdbc
- Java
