Senior Java Microservices Engineer – Warsaw (Hybrid)

Net2Source (N2S); Warszawa; Hybrid; PLN 240,000 - 320,000; Full time

Job summary

Net2Source Inc. in Warsaw, Poland is seeking a Senior Java Specialist to design and develop scalable microservices-based applications. You will lead the Java backend, focusing on performance and maintainability in a hybrid work setup.

The role requires 5 to 10+ years in Java frameworks, strong microservices experience with Spring, and familiarity with Kafka, Kubernetes, AWS, and the investment banking domain as a plus.

Qualifications

• 5 to 10+ years of experience in Java frameworks.
• Strong knowledge of microservices and backend architectures.
• Experience with Spring and Spring MVC.
• Exposure to investment banking domain is a plus.

Responsibilities

• Lead development of enterprise Java applications and maintain code quality.
• Design scalable microservices to ensure modularity and performance.
• Build robust backend services using Spring/Spring MVC.
• Collaborate with cross-functional teams to ship features.
• Ensure high performance, responsiveness, and reliability of apps.
• Participate in code reviews and drive process improvements.
• Troubleshoot, optimize, and stay updated with new technologies.

Skills

Core Java

Multi-threading

Algorithms & DS

Kafka

Kubernetes

AWS

Investment Banking (ideally Risk)

Job description

Net2Source Inc. in Warsaw, Poland is seeking a Senior Java Specialist to design and develop scalable microservices-based applications. You will lead the Java backend, focusing on performance and maintainability in a hybrid work setup.

The role requires 5 to 10+ years in Java frameworks, strong microservices experience with Spring, and familiarity with Kafka, Kubernetes, AWS, and the investment banking domain as a plus.