Senior Java Microservices Engineer - Scalable Backend

Net2Source (N2S); Warszawa; Hybrid; PLN 120,000 - 180,000; Full time

Job summary

Net2Source (N2S) in Warsaw offers a hybrid role (3 days in office) for a Specialist with 5–7 years experience in Java frameworks to design and develop scalable microservices based applications. The position requires Core Java, multi-threading, data structures, Kafka, Kubernetes, AWS, gRPC and ideally banking domain experience.

You will lead development of enterprise applications, design scalable microservices, and collaborate with cross-functional teams to ship features while ensuring

Qualifications

• 5–7 years of experience in Java frameworks.
• Experience designing and developing scalable microservices.
• Proficiency with Spring, SpringMVC, Kafka, Kubernetes, AWS, and gRPC; banking domain knowledge is a plus.

Responsibilities

• Develop and maintain enterprise-level applications using Java and related frameworks.
• Design microservices architecture to ensure modularity and scalability.
• Utilize Spring and SpringMVC frameworks for building robust backend services.
• Collaborate with cross-functional teams to define design and ship new features.
• Ensure high performance and responsiveness of applications.
• Participate in code reviews and contribute to continuous improvement of development processes.
• Troubleshoot, debug and optimize existing applications to enhance performance and reliability.

Skills

Core Java

Multi-threading

Algorithms & Data Structures

Kafka

Kubernetes

Amazon AWS

gRPC

Investment Banking

Risk (ideally)

Spring

SpringMVC

Job description

Net2Source (N2S) in Warsaw offers a hybrid role (3 days in office) for a Specialist with 5–7 years experience in Java frameworks to design and develop scalable microservices based applications. The position requires Core Java, multi-threading, data structures, Kafka, Kubernetes, AWS, gRPC and ideally banking domain experience.

You will lead development of enterprise applications, design scalable microservices, and collaborate with cross-functional teams to ship features while ensuring