The demand for robust, high‑performance Java applications is soaring as businesses modernize their digital platforms. Companies are seeking developers who can build scalable back‑end systems that power everything from fintech to e‑commerce. This role offers a chance to work on critical projects for a respected client while sharpening your expertise in modern Java frameworks.

Job Summary

We are hiring a Java Developer to design, develop, and maintain high‑performance, scalable back‑end applications. The ideal candidate will have solid experience in Java, backend development, and modern frameworks such as Spring or similar. Responsibilities include writing clean code, optimizing performance, collaborating with cross‑functional teams, and ensuring the reliability of production systems.

Top 3 Critical Skills Table

Interview Preparation

1. Explain how you would design a high‑throughput Java service to handle 10,000 requests per second. What the interviewer is looking for: Understanding of concurrency, thread pools, non‑blocking I/O, and performance profiling.
2. Describe the difference between HashMap and ConcurrentHashMap and when you would use each. What the interviewer is looking for: Knowledge of thread‑safety, synchronization overhead, and appropriate use‑cases.
3. Walk me through the lifecycle of a Spring Bean and how you would configure it for lazy initialization. What the interviewer is looking for: Depth of Spring framework knowledge and bean management.
4. How do you implement pagination in a REST API while keeping the response fast and lightweight? What the interviewer is looking for: Experience with query optimization, limit/offset, and possibly cursor‑based pagination.
5. Give an example of a performance bottleneck you encountered in a Java application and how you resolved it. What the interviewer is looking for: Real‑world debugging skills, profiling tools (e.g., JVisualVM, YourKit), and optimization techniques.

Resume Optimization

• Java
• Spring Framework
• RESTful APIs
• Backend Development
• High‑Performance Applications
• Scalable Architecture
• Object‑Oriented Design
• Microservices
• Hibernate/JPA
• Unit Testing (JUnit/TestNG)

Application Strategy

When reaching out to the recruiter, send a concise email greeting them by name, attach your resume, and reference the role explicitly. Highlight your top skills—such as Java, Spring, and RESTful API development—mention relevant projects where you built scalable back‑end services, and map your experience directly to the key requirements listed in the JD. Keep the tone professional and express enthusiasm for contributing to CTS's client initiatives.

Career Roadmap