Open to opportunities

Kostas Spegkas

@kostasspegkas

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Business Intelligence Analyst specializing in Power BI and data-driven insights to optimize business decisions.

Greece

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What I'm looking for

I seek a data-focused role where I can build scalable Power BI solutions, optimize reporting performance, mentor users, and collaborate cross-functionally in an innovative, growth-oriented environment.

I am a Business Intelligence Analyst with strong expertise in Power BI, DAX, Power Query and SQL, focused on turning raw data into actionable insights. I design interactive dashboards, optimize data models and report performance, implement RLS and train users to increase adoption across the organization.

My background includes procurement, project management, sales and teaching, supported by an MSc in Economics and extensive analytical tool experience. I combine technical proficiency with stakeholder collaboration and process improvement to deliver measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Business Intelligence Analyst

Current

Cosmos Sport S.A.

Mar 2023 - Present (2 years 5 months)

Develop and maintain Power BI data models and interactive dashboards, transforming multi-source data into actionable insights and optimizing report performance using DAX Studio and query tuning.

Power BI DAX Power Query SQL Data Modeling Dashboard Design Tabular Editor

Customer Service

Public Power Corporation S.A.

Sep 2020 - Mar 2023 (2 years 6 months)

Provided customer support and issue resolution for utility customers, managing inquiries and improving service workflows across channels during a multi-year engagement.

Customer Service CRM Communication Data Entry MS Office Stakeholder Management

Procurement Manager

Krition Artos S.A.

Sep 2018 - Mar 2019 (6 months)

Managed procurement of raw materials and consumables, negotiated supplier terms, reconciled supplier balances, and optimized logistics and purchasing via data analysis.

Procurement Inventory Management Logistics Data Analysis ERP

Buyer / Project Manager

K. Konitsiotis S.A.

Jan 2017 - Jul 2018 (1 year 6 months)

Led procurement and warehouse stock control, sourced international suppliers, managed projects (e.g., mobile ordering system) and supported sales and management processes using ERP data.

Procurement Project Management Vendor Management ERP Data Analysis Logistics Sales Support Inventory Control

Account Manager

Andreas Patsis - Law Firm - Group of Companies

Sep 2016 - Oct 2016 (1 month)

Managed client database, developed local marketing strategies, and maintained client relationships to grow the firm's customer base during a short-term assignment.

Account Management CRM Marketing Database Management Communication Sales

College Instructor

IEK OAED

Dec 2015 - Jun 2016 (6 months)

Taught accounting, finance, cost accounting and MS Excel applications, developing course materials and delivering practical training to vocational students.

Teaching Accounting Financial Reporting MS Excel Curriculum Development Training Communication

Public Funding Advisor

Municipality of Heraklion

Nov 2014 - Apr 2015 (5 months)

Researched European funding programs, prepared applications and documentation, and participated in working groups to secure public funding for municipal projects.

European Funded Projects Project Coordination Research Stakeholder Engagement

Sales and Marketing Department Manager

K. Konitsiotis S.A.

Jan 2014 - Nov 2014 (10 months)

Managed pricing, competitive monitoring, social media and brand activities to increase market presence and support sales in the tourism channel.

Pricing Strategy Competitive Analysis Social Media Marketing Brand Management Market Research Sales Support

Intern

Tax Office, Ministry of Finance

Jul 2010 - Aug 2010 (1 month)

Supported administrative and taxation projects through paperwork, documentation and organizational assistance during a summer internship.

Administrative Support Tax Documentation Data Entry Research organizational

Volunteer

University of Crete

Sep 2009 - Dec 2009 (3 months)

Maintained computer lab and provided MS Office support to students, assisting with technical issues and lab operations during a term volunteer role.

IT Support MS Office Technical Troubleshooting

Education

Degrees, certifications, and relevant coursework

Tilburg University

Master of Science, Economics

2011 - 2012

Grade: 8.5/10

Activities and societies: Courses included Applied Methods for Economists, Competitiveness of European Economy, Game Theory and Industrial Organization, Public Economics, Development and Growth, and Competition Policy; specializations: Competition and Regulation, Innovation, Competition Policy.

Completed a one-year Master of Science in Economics with specializations in Competition and Regulation and Innovation; master's thesis on network neutrality and traffic prioritization earned a grade of 8.5/10.

University of Crete

Bachelor of Science, Economics

2006 - 2011

Activities and societies: Bachelor’s coursework in Macro- and Microeconomics, Econometrics, Statistics, Political Economics, Industrial Organization and Game Theory; specialization in Economics of the firm.

Completed a Bachelor of Science in Economics with specialization in Economics of the firm, covering macro- and microeconomics, econometrics, statistics, and industrial organization.