Mohammad K Chowdhury
Oshawa,Canada
Summary
Senior Oracle PL/SQL Developer with over 18 years of experience designing, developing, and supporting enterprise banking systems in high-volume, regulated environments. Extensive expertise in backend database architecture, complex PL/SQL development, performance tuning, ETL processing, mobile banking integration, and regulatory reporting. Proven track record of improving reporting performance by up to 50% and reducing loan processing time by approximately 30%. Strong background in production database support, secure financial data handling, and compliance-driven banking solutions.
Overview
20
20
years of professional experience
1
1
Certification
Work History
Senior Programmer Analyst
Glacier Business Solutions
01.2023 - Current
- Translate business requirements into scalable database designs and ER models.
- Develop and review complex PL/SQL packages and database objects.
- Perform query tuning and index optimization to enhance performance.
- Support production systems and resolve high-priority database incidents.
- Design backend data structures for secure enterprise applications.
Senior Programmer Analyst
Dutch-Bangla Bank Limited
03.2021 - 11.2022
- Developed backend PL/SQL components supporting mobile banking and digital payment systems.
- Designed database logic for real-time fund transfers, bill payments, and account services.
- Optimized high-volume transaction processing to improve system response time.
- Implemented partitioning and archival strategies for large financial datasets.
- Supported audit and regulatory reporting aligned with compliance requirements.
- Investigated and resolved performance bottlenecks in production environments.
Senior Database Programmer
Dhaka Bank Limited
05.2006 - 02.2021
- Led database development integrated with core banking systems.
- Designed scalable schemas and implemented complex PL/SQL business logic.
- Developed ETL processes for regulatory and management reporting.
- Reduced reporting execution time by approximately 50% through optimization techniques.
- Automated batch processing using DBMS_SCHEDULER.
- Provided production support for mission-critical financial systems.
- Ensured secure handling of sensitive customer and transactional data.
Education
Master of Science - Computer Science
Jahangirnagar University
Bachelor of Science - Mechanical Engineering
BUET
Skills
- Advanced Oracle SQL & PL/SQL Development
- Mobile Banking Backend Database Support
- Core Banking System Integration
- Complex Packages, Procedures, Functions, Triggers
- Query Optimization & Execution Plan Analysis
- Indexing & Partitioning Strategies
- BULK COLLECT & FORALL Processing
- ETL Development & Data Warehousing
- Regulatory & Compliance Reporting
- Production Support & Incident Resolution
- Batch Processing (DBMS_SCHEDULER)
- Secure Financial Data Handling
- Oracle Database (9i–12c)
- SQL, PL/SQL
- Oracle Forms & Reports
- Oracle APEX
- SQL Developer, TOAD
- RMAN, Data Pump
- Linux & Windows
- Refactored inefficient SQL queries to eliminate full table scans
- Implemented indexing strategies to reduce response time and improve concurrency
- Used BULK COLLECT and FORALL for high-volume data processing
- Developed audit triggers to monitor sensitive financial transactions
- Optimized execution plans and join strategies to enhance reporting performance
Certification
- Project Management Professional (PMP)
- Oracle Autonomous Database Cloud Specialist
- Oracle Certified Internet Application Developer
- Oracle Database 11g: Administration I
- Oracle Database: SQL Fundamentals I
Languages
English
Professional Working
Bengali
Native or Bilingual
Timeline
Senior Programmer Analyst
Glacier Business Solutions
01.2023 - Current
Senior Programmer Analyst
Dutch-Bangla Bank Limited
03.2021 - 11.2022
Senior Database Programmer
Dhaka Bank Limited
05.2006 - 02.2021
Bachelor of Science - Mechanical Engineering
BUET
Master of Science - Computer Science
Jahangirnagar University