Nikolaos Skordoulis
Houston
Work Preference
Summary
Accomplished BI engineer with expertise in BigQuery, Looker, and Looker Studio. Developed impactful dashboards and optimized database performance, enhancing reporting solutions. Established partnerships with stakeholders to promote data-driven decision-making. Dedicated to continuous improvement and delivering high-quality insights.
Overview
23
23
years of professional experience
Work History
BI Engineer
Google
Houston
09.2019 - Current
- Established BigQuery pipelines, enabling real-time reporting through Looker dashboards.
- Developed and deployed insightful dashboards in production using Looker (LookML) Looker Studio and PLX Dashboards.
- Enhanced data delivery solutions with BigQuery and PLX tools, strengthening reporting capabilities.
- Created and maintained Looker reports using LookML, providing valuable insights for ongoing analysis.
- Maintained and updated reports in Looker Studio, facilitating ongoing data analysis.
- Optimized database performance by writing and refining F1 and Dremel queries.
- Collaborated with business analysts and project managers to identify analytical opportunities.
- Generated reports providing key insights into developer perceptions of GCP to inform decision-making.
- Completed training in Google Partner Skill Portal covering data engineering and BI paths.
BI Developer II
CSAT Solutions
Houston
01.2019 - 01.2020
- Spearheaded development of stored procedures and reporting functions, leveraging client data for actionable insights.
- Designed end-to-end reporting solutions utilizing ETL processes for automated reporting.
- Optimized database performance through SQL queries and stored procedures, enhancing overall system responsiveness.
- Built reporting solutions using SSRS to enhance data visualization.
- Maintained ongoing SSRS reports to support data-driven decision-making.
- Developed comprehensive reports from requirements, ensuring successful production implementation.
- Set up SSRS report servers and created reports with Visual Studio 2019 for two clients, streamlining reporting processes.
- Collaborated with developers for UAT testing on data-intensive application changes.
BI Developer II
GC Services
Houston
01.2014 - 01.2019
- Developed data delivery solutions using SSRS and SSIS with C# to improve reporting capabilities for stakeholders.
- Designed complex SSIS packages for streamlined ETL processes.
- Created and implemented reports in production aligned with test environment requirements to support data-driven decisions.
- Maintained ongoing SSRS dashboards and reports to ensure accuracy.
- Optimized SQL queries and developed stored procedures for database updates.
- Collaborated with DBAs to improve features and generate reports from SQL Server data warehouse.
- Assessed data architecture to recommend visualization and analytic tools, enhancing data accessibility for SQL Server data warehouse users.
- Utilized Power BI to create KPIs for proof of concept project, demonstrating potential insights at GC Services.
SQL Programmer/SSRS Report Writer
Stewart Lender Services
Houston
01.2013 - 01.2014
- Developed dynamic reporting solutions using latest MS SQL Server and SSRS.
- Crafted advanced SQL statements and stored procedures for efficient data retrieval.
- Collaborated with business users to define and refine report requirements, aligning solutions with business objectives.
- Ensured accuracy of imported data and visualizations through rigorous quality assurance processes.
- Automated reporting exports and user notifications via Visual Cron jobs, streamlining communication and reducing manual tasks.
- Monitored emerging reporting techniques to enhance overall reporting capabilities.
- Developed visual representations of complex data architectures to facilitate understanding and maintenance. and configurations, creating documentation to enhance system understanding and maintenance.
- Managed multiple tasks in a fast-paced environment while adapting to changing priorities.
Software Engineer/IT Support
National Bank of Greece (NBG) via Ethnodata S.A.
Athens
01.2003 - 01.2013
- Contributed as a business analyst and application developer for custody management software project, streamlining report-building processes through automation.
- Developed proficiency in Visual Studio 2012 to strengthen software development for custody application.
- Partnered with senior management to develop applications and manage multiple complex projects, enhancing project alignment with business goals.
- Delivered end-user database and programming support for UNIX/Windows servers and PCs, ensuring operational continuity.
- Conducted new hardware installations, technical troubleshooting, and network setups.
- Collaborated with business process SMEs to identify and resolve process failures, improving overall operational efficiency.
- Led validation testing for international systems to ensure compliance with standards.
- Created stock option application to centralize branch information on stock transactions, improving data accessibility.
Education
Bachelor of Science - Computer Science
Louisiana State University
Baton Rouge, LA06-1997
Skills
- ETL development
- SQL expertise and querying
- BigQuery and Looker Studio
- LookML and Looker
- Database optimization
- Data visualization
- Reporting solutions
- Business intelligence tools
- Dashboard management
- Data-driven methodologies
- Continuous improvement mindset
- Problem solving and analytical mindset
- Requirements gathering
- Cross-functional teamwork
- Attention to detail and accuracy
Languages
Greek
Native/ Bilingual
Timeline
BI Engineer
Google
09.2019 - Current
BI Developer II
CSAT Solutions
01.2019 - 01.2020
BI Developer II
GC Services
01.2014 - 01.2019
SQL Programmer/SSRS Report Writer
Stewart Lender Services
01.2013 - 01.2014
Software Engineer/IT Support
National Bank of Greece (NBG) via Ethnodata S.A.
01.2003 - 01.2013
Bachelor of Science - Computer Science
Louisiana State University