Java, React & Microservices Developer

About Us:-

Net2Source Inc. is one of the fastest growing diversities certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia, and Middle East.

About the Role:

Job Title – Java, React & Microservices Developer

Location – Warsaw, Poland

Mode of Work – Hybrid (3 Days Per Week)

Type of Hiring – Permanent

Skill-

Mandatory Skills: React developer

Secondary Skills: GenAI

Job Summary:

We are looking for a highly motivated Java Full Stack Developer with 5+ years of experience in designing, developing, and supporting enterprise-grade applications. The ideal candidate should possess strong expertise in Java, Spring Boot, Microservices architecture, React.js, REST APIs, and modern software development practices. The role involves building scalable, cloud-ready applications, collaborating with cross-functional teams, and contributing to end-to-end software delivery.

Key Responsibilities:

• Design, develop, test, and maintain scalable web applications using Java and React.js.
• Build and enhance Microservices-based applications using Spring Boot.
• Develop RESTful APIs and integrate with internal and external systems.
• Collaborate with product owners, architects, and QA teams to deliver high-quality solutions.
• Optimize application performance, scalability, and security.
• Participate in code reviews, troubleshooting, and production support.
• Implement CI/CD pipelines and DevOps best practices.
• Work in Agile/Scrum teams and contribute to sprint planning and release activities.
• Create technical documentation, follow coding standards, and best practices.

Required Technical Skills:

Backend-

• Java 8/11/17
• Spring Boot
• Spring MVC
• Spring Data JPA/Hibernate
• Microservices Architecture
• REST APIs
• JUnit, Mockito

Frontend-

• React.js
• JavaScript (ES6+)
• TypeScript
• HTML5
• CSS3
• Bootstrap / Material UI

Databases-

• Oracle
• MySQL
• PostgreSQL
• Tools & DevOps
• Git/GitHub/GitLab
• Maven/Gradle
• Jenkins
• Docker
• Kubernetes
• SonarQube
• Postman
• Swagger/OpenAPI
• Messaging & Integration
• Kafka
• Event-Driven Architecture

Cloud Exposure (Preferred)

• AWS / Azure / OpenShift

Required Qualifications:

• Bachelor's degree in Computer Science, Information Technology, or related field.
• 5+ years of hands-on experience in Java Full Stack Development.
• Strong understanding of OOP concepts, design patterns, and Microservices architecture.
• Experience in developing enterprise-scale applications.
• Excellent problem-solving and communication skills.

Good to Have:

• Spring Security, JWT Authentication
• Cloud-native application development
• Reactive Programming (WebFlux)
• Terraform, Kubernetes, ArgoCD
• AI-assisted development tools such as GitHub Copilot or Microsoft Copilot

Professional Skills:

• Strong analytical and debugging capabilities
• Ability to work independently and collaboratively
• Stakeholder management and requirement analysis
• Agile/Scrum delivery experience
• Continuous learning mindset