Description

Helping businesses make sense of their data.

After 3+ years in Big Four consulting (KPMG) and banking (KBC Group), I've had the chance to work on some genuinely complex data challenges — from building reporting systems for 16 departments simultaneously to working with 50TB+ datasets and automating reports that used to take hours every week.

What I've found along the way is that the technical part is rarely the hardest bit. Understanding what the business actually needs — and translating that into something people will genuinely use — takes just as much effort as writing the SQL.

My experience includes:

Advanced T-SQL — stored procedures, window functions, ETL pipelines, performance tuning

Power BI & Tableau — reporting built with end users in mind, not just technical requirements

Financial & business metrics — sales pipelines, BD activities, financial performance, customer behaviour

Working with messy, multi-source data — CRM systems, ERP, Excel, legacy databases

Python & AI tools — automating repetitive analytical work

I've worked a lot with stakeholders who weren't sure exactly what they needed — and I've genuinely enjoyed that part of the job. Turning a vague business question into a concrete data solution is something that came up constantly in both consulting and banking.

Open to BI development, reporting automation, data analysis, and ad-hoc projects — both short and long-term contracts.

Langues

Anglais
Bilingue ou natif
Allemand
Capacité professionnelle limitée
Russe
Bilingue ou natif
Tchèque
Capacité professionnelle complète
Polonais
Capacité professionnelle limitée

Préférences en matière de lieu de travail

Accepte de travailler sur site

Amsterdam (jusqu’à 50 km)

TechTree|
Data Analyst Contractor
AGENCE & SSII
janvier 2026 - Aujourd'hui (5 mois)
Warsaw, Poland
Providing ad-hoc data extraction and analysis using T-SQL to support specific project requests. Creating and updating Power BI dashboards to provide clear data visualization for stakeholders. Using Python and AI tools to automate repetitive analytical tasks.
Python Visualisation de données SQL Microsoft Power BI
KPMG
Data Analyst
AGENCE & SSII
janvier 2023 - janvier 2025 (2 ans)
Prague, Czechia
Processed and analyzed massive datasets exceeding 50TB across global projects to identify key business risks and operational trends. Created and maintained a portfolio of business-critical Tableau dashboards, transforming complex performance metrics into intuitive visual insights for stakeholders. Converted business challenges into automated technical solutions, utilizing SQL and AI powered tools (Copilot) to enhance reporting accuracy. Developed automated SQL workflows and ETL pipelines that reduced manual reporting time by 40%
SQL Server Tableau software Python ETL artificial intelligence
CSOB Bank
Data Analyst
janvier 2022 - janvier 2023 (1 an)
Prague, Czechia
Conducted high-volume data analysis using Teradata SQL to manage financial product portfolios, directly supporting a 10% YoY revenue growth for the assigned asset class. Designed and deployed dynamic financial dashboards using MicroStrategy, streamlining data transparency and automating reporting workflows for key stakeholders. Proactively introduced Python scripts to automate manual financial calculations, increasing reporting efficiency by 35% and eliminating errors in quarterly projections.
Python SQL Server Gestion de base de données (SQL, NoSQL, etc.) Microsoft Power BI Microsoft Excel