Experience

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  Nsu computer and engineering club

  Jan 2016 - Jan 2017

  Sub-executive (promotion and publication)
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  Fiverr

  Nov 2017 - Dec 2018

  Full stack web developer
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  Leads corporation limited

  Nov 2020 - Dec 2020

  Software engineer
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  Giga tech limited

  Dec 2020 - Feb 2022

  Oracle application express developer & dba

  Remarkable Project: PIMS (Personnel Information Management System) for Bangladesh PoliceResponsibilities:▪ Managing Oracle Database, Tomcat, ORDS▪ Performing upgrades of the database and Oracle Apex▪ Troubleshoots and fixes DB failures and executes backups▪ Managing schema objects, such as tables, indexes, and views▪ Software design, development, enhancement and implementation▪ Writing and modification of complex SQL procedures/queries/user defined functions/views/stored procedures▪ Performance tuning of SQL queries Show less

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  Ati limited

  Feb 2022 - Aug 2023

  Database administrator

  Responsibilities:▪ Responsible for the installation, configuration, backup, and recovery procedures for all databases (Oracle, PostgreSQL, and MySQL).▪ Perform Recovery of Data files corruption, loss of control files, incomplete recovery, point in time recovery etc.▪ Troubleshoot and fix DB failures▪ Database tuning with SGA tuning, AWR, ASH, ADDM, and SQL Tuning.▪ Database upgrades and migrations.▪ Query optimization▪ User management and accessibility.▪ Data Guard setup for all business-critical databases and performed DC - DR switch-over, switch-back and fail-over operations on demand.▪ Installation, Configuration, Upgradation & Administration OEM cloud control 13.2c & 13.4c.▪ R&D and create documentation▪ Oracle apex upgrade, manage workspace & application backup▪ Installation, Configuration, Backup-Restore, Master-Slave Replication, and Administration PostgreSQL Database & MySQL Database.▪ Monitoring tools configuration (Grafana, Prometheus, Node exporter)▪ Dockerized PostgreSQL database maintenance, automate backup Show less

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  Golden harvest infotech ltd.

  Sept 2023 - now

  Database administrator