Senior Java Developer

Location: Onsite in Warsaw, Poland (5 days/week)
Experience Required: 5+ years
 

🧠 Key Requirements

Must-Have Skills:

• 5–8 years of hands-on experience with Java and related technologies
• Strong problem-solving skills, solid understanding of data structures, algorithms, and design patterns
• Practical experience with:
  • Spring Boot
  • Hibernate
  • Kafka
  • Microservices architecture
  • Caching solutions
• Proficiency in SQL or NoSQL databases
• Excellent debugging and troubleshooting capabilities
• Strong grasp of OOP principles and reusable library development
• Familiarity with common design and architecture patterns
• Fluent English

Nice-to-Have Skills:

• Experience with AWS or other cloud services
• Front-end development experience using ReactJS or Angular
• Knowledge of Slang

💼 Responsibilities

• Design, develop, and maintain backend features using Java
• Build scalable microservices
• Collaborate with other teams to ensure high-quality deliverables
• Optimize and debug production code
• Contribute to system architecture and design