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Experience
5 - 8 Years
Education
Bachelors in Computer Application(Computers), Bachelor of Technology/Engineering(Computers)
Nationality
Any Nationality
Gender
Any
Vacancy
1 Vacancy
Job Description
Roles & Responsibilities
The Senior Java & SQL Developer is responsible for architecting, optimizing, and supporting
high-performance enterprise applications, with a strong focus on systems handling heavy concurrent
usage (e.g., student registration platforms). The role ensures system stability under peak loads, resolves performance bottlenecks, and leads database and application tuning initiatives. The position requires deep expertise in Java backend development, SQL optimization, and real-time production
troubleshooting.
Key Responsibilities
Design and develop scalable, high-performance Java applications.
Analyze system behavior under load and perform optimizations.
Perform advanced SQL tuning (execution plans, indexing strategies, query refactoring).
Identify and resolve performance bottlenecks in application and database layers.
Lead troubleshooting of production issues (slow response, timeouts, DB locks).
Optimize database structure, queries, and transactions for maximum efficiency.
Support and enhance student systems and registration platforms.
Work closely with infrastructure teams to tune JVM, connection pools, and servers.
Implement caching, load balancing, and performance improvement techniques.
Review and improve existing codebase for efficiency and scalability.
Maintain clear documentation for systems, fixes, and optimizations.
Desired Candidate Profile
Bachelor’s degree in Computer Science, IT, or related field.
5+ years experience in Java backend development.
Strong hands-on experience with SQL performance tuning and optimization.
Proven experience handling high-concurrency or high-traffic systems.
Strong knowledge of Java frameworks.
Experience with REST APIs and system integrations.
Strong analytical and troubleshooting skills in production environments.
Preferred Qualifications
Experience with application servers (e.g., WildFly / Tomcat).
Experience with JVM tuning (heap, GC, thread pools).
Experience with connection pooling and data-source tuning.
Familiarity with Linux server environments.
Experience with monitoring and logging tools.
Experience with student systems / registration platforms.
Key Skills
Advanced Java Development (Backend)
SQL Performance Tuning & Optimization
High-Concurrency System Design
Troubleshooting & Root Cause Analysis
API Integration & System Architecture
Performance Monitoring & Optimization
Employment Type
- Full Time
Company Industry
- IT - Software Services
Department / Functional Area
- Software Development
- Application Development (IT Software)
Keywords
- Enterprise Software Developer
- Agile Methodologies
- Senior Software Architect
- Code Optimization
- Backend Development
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Diyar United Company
Established in 1980, Diyar United Company has been, since more than thirty years, managing large and complex technology projects. Its high caliber and professional work force of 900+ employees, its strategic alliances with leading technology companies, its focus on meeting client business objectives, its investment in technology initiatives that help the economy and society and its commitment to Total Quality Management make Diyar an ideal partner for our client technology requirements through its partnership with IBM, Dell, HP, SUN, Cisco, Microsoft, Oracle and VERITAS etc DUC is the largest IT Company in Kuwait providing outsourcing services. Our experience in outsourcing varies from strategic thinking, project management, business analysis and developing integrated service models suitable for any complex environment to ensure that the services are provided efficiently, professionally and within the service levels. The unique breadth of our outsourcing portfolio extends not just to technology, but also to internationally recognized process standards as a part of adopting the ITIL best practices
Read MoreNoor Jamal El Ali - Onboarding Specialist
Waha Mall, Dajeej Area, P. O Box #3985, Safat BT Tower, Khaled Bin Al-Walid Street, P. O Box #3985, Safat Abu Bakkar Siddiq Street, Kuwait City ,Kuwait, Al Ahmadi, Kuwait
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