/ BI & DATA ANALYST

Md Arman Kaishar

Dortmund-based analyst specializing in SQL, Power BI, and Tableau. I build automated reporting pipelines and KPI dashboards that translate complex logistics and financial data into clear operational decisions.

OPERATIONAL FOCUS

Engineering precision meets analytics

The analytical approach

Education & Languages

I turn operational, financial, sales, and inventory data into structured business insights. With an engineering foundation and Lean Six Sigma training, I focus on eliminating reporting bottlenecks and improving data accuracy.

Data Analytics & SAP ERP FI/CO specialist with a B.Sc. in Electrical Engineering. Fluent in English (C2) and German (B2/C1) for corporate environments.

Data Querying & Python

Visualization & BI

Process Engineering

Advanced SQL, CTEs, complex joins, window functions, and data cleaning pipelines paired with Python Pandas and R basics.

Interactive dashboard engineering in Power BI and Tableau, KPI monitoring, automated reporting, and advanced Excel modeling.

Lean Six Sigma methodologies, root cause analysis, forecasting, process improvement, and SAP ERP FI/CO integration.

CAREER TIMELINE

Professional history in Germany

TRESTIIN H&D GMBH
AMAZON LOGISTIK DORTMUND

BI & Data Analyst

Operations & Logistics Analyst

Led reporting automation and KPI analysis. Built interactive dashboards to monitor operational performance, reducing manual data extraction and improving reporting speed.

Analyzed inventory accuracy and operational bottlenecks. Conducted root cause analysis on process errors, implementing tracking systems that supported daily shift decisions.

HAUS 12 WEST / D.ING 360
TEAMBD GMBH

Data & Reporting Specialist

Business Development Analyst

Executed market data analysis and sales forecasting models. Designed performance tracking systems for executive stakeholders to guide strategic regional growth.

Managed data quality audits and automated weekly performance reporting. Integrated disparate Excel and database sources into unified operational views.

A crisp, high-fidelity screenshot of a Power BI dashboard focusing on inventory metrics, showing clean bar charts, KPI cards with green and red indicators, and structured data tables.
A crisp, high-fidelity screenshot of a Power BI dashboard focusing on inventory metrics, showing clean bar charts, KPI cards with green and red indicators, and structured data tables.
A high-contrast Tableau dashboard visualizing customer cohorts, displaying a clean retention heatmap and a clean scatter plot with teal accents.
A high-contrast Tableau dashboard visualizing customer cohorts, displaying a clean retention heatmap and a clean scatter plot with teal accents.
TECHNICAL PORTFOLIO

Data systems in action

EXCEL & POWER BI

Inventory Accuracy Optimization

Developed automated KPI monitoring tools to track stock discrepancies. Applied root cause analysis to identify processing errors, resulting in a measurable reduction in inventory mismatches.

SQL & TABLEAU

TravelTide Customer Segmentation

Wrote advanced SQL queries to segment users based on travel behavior. Built a Tableau dashboard visualizing cohort retention patterns to drive targeted marketing campaigns.

Ready to optimize your data pipelines?

I am currently accepting opportunities for Business Analyst, BI, and Data Analyst roles in Germany.