Senior Java Developer

Wizeline

29 days ago

Barcelona, Spain

Senior

H1B Sponsor

Responsibilities

Design, develop, and maintain scalable backend services using Java and Spring Boot.
Build and evolve RESTful APIs and microservices with a focus on reliability and security.
Design and support distributed systems and microservices architectures using Docker and Kubernetes.
Collaborate with DevOps teams to implement and improve CI/CD pipelines.
Optimize application performance through profiling and tuning.
Ensure high code quality through unit and integration testing.
Participate in architectural discussions and provide technical guidance.
Troubleshoot production issues and contribute to system improvements.

Bachelor’s Degree in Computer Science, Engineering, or a related field.
5+ years of professional experience as a Java Developer or Backend Engineer.
Advanced knowledge of Java (11/17/21) including multithreading and performance optimization.
Strong experience with Spring Framework and Spring Boot.
Hands-on experience designing and maintaining microservices-based architectures.
Proficiency with Docker and Kubernetes.
Solid understanding of CI/CD pipelines and automated testing.
Experience working in cloud environments such as AWS or Azure.
Strong background in unit and integration testing using JUnit or similar frameworks.
Experience defining performance metrics and resolving scalability issues.
Advanced/Fluent English level (spoken and written).

Apache KafkaAWSAzureDockerJavaJUnitKubernetesRabbitMQSpring Boot