Daffa Sejati Email & Phone Number

East Jakarta, Jakarta, Indonesia

South Jakarta, Jakarta, Indonesia

∙ Optimized help desk operations by developing a data-driven website, improving efficiency by 25%.∙ Streamlined ERP migration, reducing data transfer time through effective data management.∙ Optimized inventory management using a PHP-based website.∙ Created UAT for projects, resolving issues pre-production and reducing post-launch errors.

Jakarta, Indonesia

• Updated and maintained databases in Excel, accurately entering and organizing over 2.000+ records to ensure data integrity.• Streamlined data entry processes, reducing data input time by 20% and increasing overall efficiency.• Cleaned and validated data, identifying and correcting errors to improve data accuracy by 15%.

Central Jakarta, Jakarta, Indonesia

• Developed the SiBoba website using HTML, CSS, JavaScript, PHP, and CodeIgniter within a 4 week project lifespan.• Conducted user testing and debugging to ensure a seamless user experience, reducing bug reports by 65%.• Created and maintained database using PostgreSQL and implementing logic for specific columns.

• Completed all learning modules within 3 months and achieved a grade A.• Developed and trained 3 machine learning models, which improved prediction accuracy by 25%.• Conducted thorough data cleaning and validation, ensuring high-quality input for models and achieving a 15% improvement in model reliability.

• Created conceptual and physical data models using Oracle, resulting in 5 new optimized databases for business scenarios.• Designed ERDs and presented them to end-users, resulting in a 20% improvement in user understanding and communication.• Implemented data normalization within tables using Oracle, eliminating 200 redundant entries and ensuring data consistency.

Computer Science, 3.68 Of 4.00

Education record