Senior Data Analyst

Mehmet Kızılaslan

Transforming complex datasets into clear, actionable insights. Specializing in Power BI, Python, and machine learning across manufacturing, retail, and logistics industries.

7+
Years data experience
LSGB
Lean Six Sigma Green Belt
5
Industries
8
Core tools
Scroll
01

About

I am a Senior Data Analyst based in Istanbul with a dual engineering background — an M.Sc. in Industrial Engineering from the University of New Haven and a B.Sc. in Mechanical Engineering from Gaziantep University.

With experience spanning metallurgy, mobile technology, foreign trade, and logistics, I bridge the gap between raw data and strategic decision-making. I build Power BI dashboards, automate reporting pipelines, and develop machine learning models that drive measurable business impact.

My approach is rooted in Lean Six Sigma methodology — identifying inefficiencies, eliminating waste, and delivering quality improvements through data-driven analysis.

Education
M.Sc. Industrial Engineering
University of New Haven, Connecticut, USA — Jan 2019
B.Sc. Mechanical Engineering
Gaziantep University, Turkey — Jan 2015
Skills
Data Analytics Statistical Analysis Lean Six Sigma Project Management Vibe Coding
Tools
Excel / Power Query Power BI Python SQL SAP S/4HANA Minitab / Arena
Languages
Turkish — Native English — Fluent
02

Experience

Sep 2025 — Present
Çolakoglu Metallurgy · Istanbul
Senior Data Analyst
  • Leveraged SAP and Excel to analyze internal audit data, identifying anomalies, control gaps, and process inefficiencies to strengthen compliance and internal controls.
  • Developed Power BI dashboards and automated Excel reports to visualize audit findings, monitor key risk indicators, and support data-driven management decisions.
Jul 2024 — Sep 2025
Tecno Mobile · Istanbul
Senior Data Analyst
  • Created and managed data reports to analyze sales performance, driving insights for optimization and strategic decision-making. Forecasted optimal stock levels for retail channel stores.
  • Improved data quality from 85% to 93% by resolving calculation issues and enhancing report accuracy.
  • Designed and implemented dynamic Power BI dashboards to deliver actionable insights and support yearly production and sales planning.
Feb 2023 — Jul 2024
Aveks A.Ş. · Istanbul
Market Analysis & Reporting Specialist
  • Collected and analyzed foreign trade data using Excel, Power Query, and Power BI, transforming raw inputs into clear, actionable reports.
  • Collaborated with trade and operations teams to provide data-driven insights and managed Purchase/Sales Contracts in compliance with foreign trade regulations.
Jan 2022 — Feb 2023
Volvo Group · Istanbul
Industrial Application Engineer
  • Implemented and tested advanced industrial and marine diesel engines, collaborating with OEMs to optimize integration, performance, and efficiency.
  • Proactively addressed customer inquiries and complaints, delivering effective solutions to ensure high satisfaction and long-term loyalty.
Mar 2019 — Jun 2020
EI Transport · West Haven, CT
Transport Analyst
  • Leveraged Six Sigma tools (FMEA, 5W's, VSM) to optimize processes and maximize customer satisfaction while monitoring KPIs for quality logistics performance.
  • Provided expert recommendations to stakeholders based on data-driven insights, facilitating the development of robust transportation networks.
03

Projects

01 / 04
Mall Customer Segmentation
Kaggle Competition

Applied K-Means clustering on mall customer data. Used elbow method to determine optimal cluster count and PCA decomposition to reduce dimensions and generate visualizations.

Python K-Means PCA Scikit-Learn
02 / 04
Credit Card Default Prediction
Kaggle Competition

Preprocessed 30,000 client records with 25 features. Applied Logistic Regression, SVM, and MLP Classifier, achieving an 82.03% prediction accuracy rate.

Python SVM Logistic Reg. MLP
03 / 04
Titanic — ML from Disaster
Kaggle Competition

Applied data cleaning, wrangling, and exploratory data analysis on the Titanic dataset. Deployed multiple ML algorithms to accurately estimate survival outcomes.

Python EDA Pandas Matplotlib
04 / 04
FedEx Ground Simulation
University of New Haven

Collected GPS vehicle tracking data, performed outlier and input analysis using Minitab and Arena. Built a full simulation model on Simio software for logistics optimization.

Simio Minitab Arena Six Sigma
04

Certifications

Google
Agile Project Management
Jun 2025
Macquarie University
Excel Skills for Business Specialization
Nov 2024
TDV-SABEL
Foreign Trade Expert Certificate
May 2024
Microsoft
Power BI Data Analyst Associate
Apr 2024
IBM
Data Science Professional Certificate
Mar 2023

Let's work
together.

Available for data analytics consulting, full-time roles, and freelance projects.