Md. Jahidul Islam

• Processed bulk data via external APIs and resolved issues to improve system functionality and performance.
• Optimized database schema by removing unnecessary objects and streamlining tables, indexes, and queries for improved performance.
• Prepare HLD, LLD, design and implement RESTful APIs and microservices.

Technologies Used: Spring Boot, PostgreSQL, Microservices, ELK Stack, Redis Cache, AWS Cloud etc.

Project: NGI, Client: PT Bank Danamon Indonesia

• Specialized in Oracle Flexcube CBS - FCR, with expertise in migrating APIs (Maintenance, Inquiry, Financial) using PL/SQL and developed containerized RESTful APIs with Java and Spring Boot.
• Led system data migration efforts to ensure seamless transitions.
• Deployed API images on the Red Hat OpenShift Container Platform, ensuring integration and scalability.
• Participated in client calls, gathered requirements, and translated them into technical documentation.
• Enhanced Oracle SQL query performance and conducted code reviews.

Technologies Used: Spring Boot, Oracle 19c, PostgreSQL, Microservices, JMS, Red Hat OpenShift

Project: Chittagong Port Authority

• Developed backend for CPA's Inventory Management System to manage purchased/borrowed stock, requisition with multi-level approvals.
• Developed backend for CPA's Accounts & Finance System, handling financial transactions, account management with multi-level approvals.
• Participated in designing database schemas, implemented business logic in over15 modules.
• Worked on a scalable backend system using Spring Boot, enabling the app to handle a 73% increase in concurrent user requests.
• Worked on bug fixes, performance enhancement, user interface updates.
• Ensured proper documentation and testing of APIs.

Technologies Used: Spring Boot, Oracle 11g, Microservices Architecture, OBIEE

Project: Bangladesh Railway

• Development, Optimize, Tune, Identify and resolve bugs of application.
• Participated in database design discussions to ensure efficient data storage and retrieval
• Gained hands-on experience in developing backend services, integrating user-facing elements with server-side logic using Java Spring technologies
• Generated complex Reports using BI Publisher
• Engaged in training opportunities to enhance programming skills

Technologies Used: React, Spring, Oracle 11g, OBIEE

• Focused on front-end development using HTML and CSS
• Developed JavaScript-based functionalities for Oracle APEX-integrated solutions
• Assisted in writing and optimizing PL/SQL units
• Learned to ensure data integrity and security

Technologies Used: Oracle APEX, Oracle 12c, ORDS, OBIEE