Kosta Dujic

Created Power BI data visualizations like Clustered Column Chart, Donut Chart, Line Chart,
Slicer, Gauge Visualization etc. with Power BI for both Navy Project and Armed ground forces
project.
Used Azure Data Factory, Azure Synapse to develop ETL packages and data architecture for
Power BI Reports. Created Dynamic Pipelines, Data Sets, Linked servers in Azure Data
Factory for data movement and data transformation.
Served as DND Technical Lead for a global MS Fabric Community of Practice, establishing
governance frameworks for workspace lifecycle management and mentoring 50+ users on
the transition from Power BI Pro to Fabric Capacity. Designed and implemented large-scale
ETL/ELT pipelines in Azure Databricks using PySpark to ingest, transform, and curate data
from multiple sources (files, APIs, relational databases). Partnered with Data Architects to
translate conceptual and logical data models into efficient physical implementations on
Azure Data Lake and Delta Lake tables.
Built reusable PySpark frameworks for data validation, error handling, logging, and metadata
driven processing, improving development speed and consistency.
Developed SQL Server 2012/2016 stored procedures, views, and functions to manipulate
data. Developed automated response systems using Data Activator, triggering Power
Automate workflows and Teams notifications based on real-time KQL patterns, effectively
eliminating manual monitoring of critical KPIs.
Did release engineering DevOps build, continuous integration/continuous deployment
(CI/CD) pipelines, and version control systems (Git, GitHub) and used release automation
tools (Jenkins, Azure DevOps) and infrastructure as code (IaC) concepts.
Design Copilot Studio agents that answer data questions and automate workflows (Power
Automate, Dataverse, Microsoft Graph) with Power Platform DLP policies, responsible
evaluation/grounding for data Q&A, workflow automation and Agentic AI solutions with DND
department groups.
Designed end-to-end data solutions leveraging OneLake as a unified data layer, enabling
analytics across Power BI, notebooks, and downstream services.
Used Azure Data Factory, Azure Synapse to develop ETL packages and data architecture for
Power BI Reports. Created Dynamic Pipelines, Data Sets, Linked servers in Azure Data
Factory for data movement and data transformation. Developed CRM Dynamics 365 portals
and CRM Dynamics 365 applications with Microsoft Power Platform by using Power Pages,
AvePoint, Power Automates, Model driven apps and using Azure services such as Azure
Functions, Logic Apps, Service Bus, App services, CD pipelines.
Included HR, financial, grants data-driven and Business Reports data in a new CRM
Dynamics 365 applications on Cloud.
Did Microsoft Dynamics 365 CE: Customizations, Configurations, Plugins (C#), Custom
Workflows, Business Process Flows, Entities, Forms, Views, Relationships, Security Roles,
Business Units, Dataverse, Solution Management.
Developed Power Platform: Power Apps (Canvas & Model-Driven), Power Automate (Flows),
Power BI, Power Virtual Agents, Dataverse.
Developed Azure Integrations: Azure Functions, Logic Apps, Service Bus, Key Vault, REST
APIs, Custom Connectors. Built complex DAX measures and calculated columns to support
advanced analytics.

• Optimized MySql table for bank file, decreasing processing time from ~8 hrs to ~17min.
• Maintained, administered and developed MY SQL database applications by using MySQL
Enterprise Monitor tools, MySQL Enterprise Backup, MySQL Workbench, MySQL Master
High Availability (MHA)
and MySQL Replication (Master-Slave, Master-Master set) including developing bacup
and replication solutions.
• Assisted with database upgrades from SQL server 2000 and SQL Server 2005 to SQL
server 2008.
• Implemented and supported SQL server 2008 database security structure and encryption
by creating database encryption keys and by using full database-level encryption by
using TDE (Transparent data encryption.
• Assisted with database security patching that include Service pack 1and other patches.
• Assisted with database server Operating Windows 2003/2008 System patching
• Assisted with database migrations from server to server that includes also stored
procedures upgrades and with database consolidation (possible in conjunction with
upgrades)
• Ensured performance is maintained after upgrades and patches by rebuilding indexes
and by creating statistical indexes.
• Created tabular and matrix reports in SSRS. Wrote stored procedures and functions to
create SSRS reports.
• Used SQL server Performance Tuning analyzer and performance monitor analyzer for
database health checks and performance tuning of 6 large SQL Server systems.
• Used Business intelligence (BI) in SharePoint 2010/2013 to integrate across Microsoft
Office including Excel 2010 and to create Dashboards..
• Developing dimensional and analytical data models specific to data warehouses/data
marts (was using DB2 and SQL server 2005 analyzing services).
• Created dimension maps and multidimensional cubes using Impromptus Query
Definition in PowerPlay Transformer.
• implemented and supported SQL Server Clustering, so when one SQL server database
has an issues, it will automatically fail over to other SQL Server database, so availability
for 24/7 per week.
• Developed data mining, and pattern recognition by using SQL server 2005/2008 data
mining tools.
• Developed and tested business intelligence scorecards.
• Performed data modeling, data analysis, data conversion, and data migration in a SQL
Server and Oracle environment by using TOAD software, SSIS packages, OLAP services,
ERWIN, and RED Gate tools