“For anyone looking for outstanding analysis, visualisations, and actionable insights, I highly recommend reaching out to him. His ability to transform complex data into clear, compelling visuals makes him a fantastic asset in any data-driven environment.”

— Anna Balandynowicz, Head of Fund Admin Regulatory Change, SS&C Technologies

🚀 Projects

1. Savings Compass — Polish Bonds Savings Planner [React, JavaScript]

🔗 Live demo

✍️ A bilingual (PL/EN) interactive savings planner that ranks all Polish Treasury savings bonds (ROR, DOR, TOS, COI, EDO, ROS, ROD) plus a benchmark savings account against a user’s goal, amount and horizon. Inspired by the work of Marcin Iwuc.

Savings Compass

Personal flow: 4-screen onboarding (name → goal → amount → horizon) with multi-goal comparison and inline editing.
Financial engine: Month-by-month simulation including capitalization vs. payout, series rollover, early-redemption fees, Belka tax and a parallel savings-account benchmark.
What-if scenarios: Live recalculation when the user adjusts inflation, NBP reference rate or savings-account rate.
UX: Apple-inspired design system, dark/light mode, fully responsive single-file React app (no build step).

🔎 Demonstrates skills in product thinking, financial modeling, React and turning a personal-finance problem into a polished consumer tool.

2. Plant Co. Performance Dashboard [Power BI]

🔗 View Project

✍️ An interactive Power BI dashboard analyzing Plant Co.’s performance over three years, with a focus on profitability trends across products, geographies, and time.

Plant Co. Dashboard

Performance Overview (YTD vs PYTD): Tracks Gross Profit, Quantity, and Sales with variance analysis to highlight growth or decline.
Market Insights: Identifies underperforming countries via treemaps and visualizes monthly KPI shifts with waterfall and line charts.
Segmentation: Breaks down profitability by product type (Indoor, Outdoor, Landscape) and categorizes accounts by GP% for strategic decision‑making.

🔎 Delivers actionable insights for optimizing sales strategies, refining market focus, and improving product performance. Demonstrates skills in Power BI data modeling, DAX, and advanced visualization design.

3. Sales Performance Dashboard [Power BI]

🔗 View Project

✍️ An interactive Power BI dashboard providing a high‑level overview of global sales performance, market distribution, and order prioritization.

Sales Performance Dashboard

Key Metrics: Tracks total sales, average sales, total orders, profit per order, shipped orders, and shipping costs.
Visual Insights:
- Line chart of monthly sales trends with min/max values.
- Pie and doughnut charts breaking down markets and product categories (Technology, Furniture, Office Supplies).
- Bar charts highlighting performance across business segments and ranking order priorities.

🔎 Demonstrates skills in Power BI, advanced DAX calculations, and dynamic visualization design. Supports decision‑making by identifying market opportunities, optimizing order strategies, and improving profitability.

4. Seats Utilization Dashboard [Tableau]

🔗 View Project

✍️ A Tableau dashboard designed to monitor workspace occupancy across multiple office locations in 2024, providing actionable insights for space optimization and resource planning.

Summary View: Tracks total seat utilization, usage trends over time, and weekday comparisons to identify peak and low occupancy periods.
Detailed Analysis: Offers seat‑level utilization tables with advanced filters by building, room type, and location, plus a utilization slider to spotlight under‑ or over‑used areas.

🔎 Helps facility managers and executives optimize office space allocation, reduce costs from under‑utilized areas, and make data‑driven decisions to improve workplace efficiency.

5. Sales and Customer Dashboard [Tableau]

🔗 View Project

✍️ Two interactive Tableau dashboards designed to analyze customer behavior and sales performance with year‑over‑year comparisons.

Sales Dashboard: Monitors sales, profit, and quantity, breaks down results by product subcategories, and visualizes weekly sales and profit trends.
Customer Dashboard: Tracks total customers and growth trends, segments buyers by order frequency, and highlights the top 10 most profitable clients.

🔎 Demonstrates skills in data preparation, interactive dashboard design, and visual storytelling to support business decision‑making.

6. Coffee Sales Dashboard [Excel]

🔗 View Project

✍️ An interactive Excel dashboard designed to analyze coffee sales across time, product categories, and regions. A recreation of Mo Chan’s Coffee Dashboard, built to demonstrate advanced Excel features such as pivot tables, slicers, and dynamic formulas.

Coffee Dashboard

Sales Overview: Tracks total revenue, units sold, and average transaction value, with breakdowns by product type and region.
Trend Analysis: Visualizes sales performance over time, highlights seasonal patterns, and compares product contributions.

🔎 Demonstrates skills in Excel data modeling, interactive dashboard design, and clear visual storytelling to support business decision‑making.

📝 About Me

💼 Experience

Business Analyst — Banqsoft, Gdańsk (2025–Present)

Building solutions for the financial services industry alongside Product and Engineering. Translate client needs into delivered features for banks and finance institutions.

Reporting Analyst — State Street, Gdańsk (2022–2025)

Modernized legacy reporting into automated, decision-ready Power BI and Tableau systems for global stakeholders.

1 week → 1 hour — automated a multi-source consolidation report (-99% time, zero manual errors).
Hours → minutes — built a global portfolio reporting model with end-to-end Power Query ETL.
Engineered a global office-space utilization dashboard for senior leadership.

Business Analyst — State Street, Gdańsk (2019–2022)

Led EMEA-wide BA work on technology implementations and reporting platforms.

-70% manual errors across EMEA tech implementations.
-30% onboarding time via end-to-end documentation and training.
+50% dashboard usability through iterative Power BI improvements.

Fund Accountant — State Street, Gdańsk (2015–2019)

The foundation of everything I now build in BI. Owned daily NAV production for a portfolio of client funds.

-40% risk assessment time through fund-performance KPIs.
99% pricing accuracy across periodic valuation audits.

Verification Specialist — Transcom Worldwide, Gdańsk (2010–2015)

Verification work for Citi Handlowy credit card sales.

98% data validation accuracy across high-volume verification projects.
Designed an internal case-tracking system — response time -40%, backlog -50%.

🎓 Education

Master’s degree, Accounting and Finance — University of Gdańsk (2009–2014)

🛠️ Technical Skills

Data Visualization: Power BI, Tableau
Data Management: SQL, Power Query, ETL Process Design
Productivity Tools: Excel (Advanced)
Domain: Fund Accounting, Financial Reporting
Methodologies: Agile PM, Stakeholder Engagement

🌐 Languages

Polish (Native)
English (Advanced – C1)

📜 Certifications

SQL Programming (NASBA, 2024)
SQL Essential Training (NASBA, 2024)
Tableau Essential Training (NASBA, 2024)
Data Visualization for Data Analysis and Analytics (IIBA, 2024)
Change Management Foundation (APMG International, 2019)
AgilePM Foundation (APMG International, 2018)
Financial Controller (MEN, 2016)
Master of Excel (2015)