About Kostas Mexias | Contra Kostas Mexias

Kostas Mexias

Kostas Mexias

Transforming Data into Insights: Access, SQL, PowerBI, Excel

Ready for work

Kostas is ready for their next project!

Athens, Greece

Work Services About

Athens, Greece

Meet Kostas

I'm Kostas, a certified database developer with a university degree in computer science and 20 years of experience. I've worked for companies like Oracle and IRI. My expertise includes database development, Excel data analysis, Power BI reporting, SQL queries, and more. Let me bring your data to life with custom solutions that meet your business needs!

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Best Microsoft Access freelancers to hire in 2026 Best English-speaking Microsoft Access freelancers to hire in 2026 Best freelance Software Engineers in Decentralized Administration of Attica to hire in 2026

Rate

$25 - $50/hr

Skills and tools

Data Visualizer Software Engineer Data Analyst Database Specialist Database Engineer Desktop Apps Development Business Analyst

Microsoft Excel

Microsoft Office 365

Microsoft Power BI

Details

Athens, Greece

(GMT+2) Eastern European Time (EET), ±5 hours

Fluent in English

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Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Hackathons Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

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