Ramin

About Ramin

Senior Database Administrator with over 10 years of experience in Relational and NoSQL databases and Strong Experience in Administration of large-scale environments based on SLA requirements, contributing to process documentation and implement Automation of repeated and routine tasks. Excellent at collaborating with cross-functional teams to deliver results and working in high pressure environments with level of 7X24 on call support. Ability to learn new emerging technologies and adapt quickly.

I have been interested in programming since I was 15 years old and pursued this interest in the form of small projects. Based on this interest, I completed my master's in computer science and graduated. During my bachelor's degree, I researched semantic databases. This made me interested in data management. Now about my job exp:

Senior Database Administrator at Alibaba Travels:

Known as the country's largest online travel marketplace and a pioneer in online accommodation reservations. This website offers the same services as Booking.com in Iran.

Key responsibilities:

•Participating in on-call shifts, communicating with stakeholders about database problems, and planning for future database needs.

•Implemented HA and DR solutions for PostgreSǪL, MySǪL, MongoDB and SǪL Server 2019.

•Ensuring backup, performance, security, and create logical data models.

•Managing +20 Azure SǪL elastic pools, and experience with MongoDB.

Achievements:

•Implemented centralized Error logs, SǪL Audit, Permissions, PerfMon of 9+ Servers using ELK.

•Spearheaded the successful migration of on-prem infrastructures to Azure cloud platform.

•Achieved 99.999% uptime in AlwaysON through proper configuration of the servers.

•By optimizing routines and queries, we reduced server resources by 40%.

•Removed deadlocks and blocks in order to increase sales by 5%.

Technical Stacks:

SǪL Server, MongoDB, PostgreSǪL, MySǪL, Azure SǪL, Elastic, Kafka, RedGate, Jira, Git, PowerShell, SSIS, ADF, Python, Linux, VS Code, ADS, Mongo Compass, Workbench, DBeaver.

SǪL Development Expert & Performance Specialist as SADAD:

SADAD is one of the subsidiary companies of Melli Bank, the largest banking institution in the Middle East, providing modern electronic payment and PSP services.

Key responsibilities:

•Design and Develop enterprise-level Database, document Schema and code changes using TFS.

•Created 20+ complex Incremental Data Load ETLs to Data Warehouse from various sources.

•Tuning queries against a Big Data warehouse for Mobile App Databases.

Achievements:

•It turns out that queries on several terabyte tables were answered in less than 1 second.

•80% improvement in mobile reporting speed and 40% reduction in resources.

Technical Stacks:

BI Stack (SSIS, SSRS, SSAS, PowerBI), T-SǪL, Idera, SSMS, Redgate Toolbelt, DAX, TFS.