Java Back End Developer

We are seeking an experienced Java Backend Developer (6+ years) to design and develop high-performance, scalable backend systems. The ideal candidate will have deep expertise in Java 8+, strong fundamentals in OOP, design patterns, data structures, and algorithms, as well as proven experience in integration tools and databases (MySQL or NoSQL).

This role involves solving complex technical challenges, mentoring junior developers, and contributing to architectural decisions.

Role & responsibilities

• Design, develop, and maintain backend services using Java 8+ (lambdas, streams, functional interfaces, etc.).
• Implement robust object-oriented solutions and apply design patterns effectively.
• Work with data structures and algorithms to optimize performance.
• Optimize code for efficiency, scalability, and maintainability.
• Implement multithreading and concurrency solutions for high-throughput systems.
• Develop and maintain system integrations with external/internal tools and platforms.
• Work with MySQL or NoSQL databases, including schema design, query optimization, and performance tuning.
• Participate in code reviews, technical discussions, and architectural design sessions.
• Mentor and guide junior engineers.

Required Skills & Experience

• 6+ years of professional backend development experience with Java.
• Strong knowledge of Java 8+ features (streams, lambdas, functional programming).
• Solid understanding of OOP principles and design patterns.
• Hands-on experience with data structures, algorithms, and performance optimization.
• Strong expertise in multithreading, concurrency, and synchronization.
• Experience with integration tools (REST APIs, messaging systems, etc.).
• Proficiency with MySQL or NoSQL databases (MongoDB, Cassandra, or similar).
• Familiarity with version control (Git), CI/CD pipelines, and cloud platforms is a plus.