CezariuiszIwoOrlowski.github.io · data-analyst → security · bi · warsaw

Cezariusz Iwo Orłowski
· Data Analyst
→ Security Data Analyst

SQL · Tableau & Power BI · Web Development · Healthcare BI · Aspiring Threat Intelligence · Warsaw, PL

GitHub · LinkedIn · Instagram · Warsaw, Poland · Open to freelance
profile

Data Analyst and Tableau Developer with hands-on experience in financial reporting, healthcare analytics, and business intelligence. Currently working as an Accountant in public healthcare — building expertise in ERP systems, financial data modeling. Transitioning into Security Data Analytics — developing skills in log analysis, SIEM tooling, Linux, and threat intelligence fundamentals.

tech stack
BI & Visualization
Tableau Desktop
Tableau Prep
Power BI
Alteryx
Query & Data
T-SQL / MS SQL Server
SQL Server Integration Services (SSIS)
ERP Data Modeling
Excel / Power Query / VBA
Learning · in progress
Linux CLI
Bash scripting basics
System administration & Python
Security Track · in progress
Security Data Analytics
Log Analysis / SIEM
Threat Intelligence
CompTIA Security+
proficiency
Tableau
97%
Data Visualization
92%
T-SQL
60%
Financial Reporting
78%
Power BI
50%
Healthcare Analytics
70%
Linux · learning
2%
Sec. Analytics · learning
3%
experience
Accountant · Data Analyst
2026 — present
Public Healthcare — Warsaw
Financial data analysis and ERP reporting in public healthcare sector. Deepening domain knowledge in healthcare operations, accounting systems, and institutional data flows.
Power BI Accounting ERP Analytics Healthcare BI Financial Reporting
Junior Data Analyst · Tableau Developer
2024 — 2026
Baxter International Inc. — Warsaw
Developed and maintained Tableau dashboards for business performance monitoring in pharmaceutical corporate environment. Built data pipelines with Tableau Prep and Alteryx. Delivered KPI dashboards for operational and executive reporting.
Tableau Tableau Prep Alteryx T-SQL Pharma Analytics Dashboard Design
Intern — Commercial Analytics Specialist
2023 — 2024
Baxter International Inc. — Warsaw
Entry-level exposure to business intelligence, data extraction, and visualization workflows. Foundation for analytical methodology and structured reporting processes.
Excel Power Query Tableau Reporting
Freelance — Dashboard Consulting
ongoing
Independent
Freelance Tableau dashboard development for clients requiring financial and operational data visualization. Specialize in clean, decision-ready BI tools built for non-technical stakeholders.
Tableau Dashboard Design Data Consulting Remote
current focus
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T-SQL Optimization
Stored procedures, query performance, indexing strategies
$_
Linux · in progress
CLI, Bash basics, system administration fundamentals
⚑
Security Analytics · in progress
SIEM, log analysis, anomaly detection — CompTIA Security+ path
◈
Threat Intelligence · in progress
Data-driven adversary profiling, threat data fundamentals
▦
Freelance BI
Tableau dashboard consulting, scalable analytics tools
◉
Physical Performance
Weighted calisthenics, 5×/week — systems-based approach