Main Page Clean data. Automated workflows. Faster decisions.

Portfolio overview

Data Analyst Python · SQL · Power BI · Automation · AI Integration

I’m a Data Analyst based in Halle, Germany, with experience at DB Schenker, FedEx and IAMO. I use SQL to analyse data, Python to automate repetitive work and Power BI to build reports. I also integrate AI models into data-processing workflows. I currently work part-time at Leibniz Institute of Agricultural Development in Transition Economies (IAMO), building Python tools that prepare data for economic research. I’m available for full-time Data Analyst and BI Analyst roles.

What you’ll find here

Experience: How I’ve helped teams improve reporting, reduce manual work and make better use of their data.
Recommendations: Feedback from people I’ve worked with, with the original recommendation letters available to read.
Research & training: Research I’ve contributed to and courses I’ve completed in Python, Excel and data analysis.
Independent project (in development): I’m building an application as a passion project, combining Python, SQL, dbt and cloud platforms with automation and AI integration. Once it’s ready, I’ll share the working application here, along with the results and how I built it.

Recommendation letters

Strengths confirmed by recommendation letters

Feedback from people I’ve worked with at DB Schenker, FedEx, IAMO and AIESEC. Open a letter to read it in full.

DB Schenker

Operational impact

“Significantly reduced manual data preparation time by approximately 80% and lowered data error rates through the successful automation of ERP data processing.”
Open letter →

FedEx Express

Python advantage

“Sergei’s knowledge of Python has been a huge advantage to our team.”
Open letter →

IAMO

Research data work

“His command of advanced data-management functions in MS Excel, Python and Stata was crucial for efficient and timely task execution.”
Open letter →

AIESEC

Problem-solving

“With his quick comprehension and ability to solve problems promptly and creatively, he greatly enriched our committee.”
Open letter →

At a glance

How I can contribute to the data team

I bring a practical, business-focused approach to data work: Python automation, Power BI reporting, data quality improvement and process understanding.

In practice, this means understanding how a process works, identifying where data quality or manual effort creates problems, and building a solution that is reliable, repeatable and easy for others to use. I focus not only on the technical implementation, but also on making sure the final workflow fits the needs of the people working with it.

Messy inputs Cleaning & validation Automated workflows Dashboards & tools Trusted outputs

Data analysis & reporting

I help teams understand performance, investigate business questions and identify areas for improvement. I use SQL and Power BI to turn data into analysis and reports people can use in their work.

Automation & internal tools

I look for ways to reduce repetitive work and make processes easier to manage. I build Python workflows and tools that save time, reduce manual steps and fit how the team works.

Practical AI integration

I help teams put AI to use in their existing tools and processes - to support analysis, work with information and automate tasks. I focus on where it adds value, with checks and human review.

Data quality & integration

I bring data from different sources together and address gaps, errors and inconsistencies. This gives teams more reliable information for reporting, planning and everyday work.

Explore

Explore my portfolio

Read more about my experience, research contributions and completed training.

01 About & Experience My work at IAMO, DB Schenker and FedEx, along with my education and volunteering. Open page → 04 Operational Data Automation - in development Example of how manual request-processing and reporting workflows can be improved with Python, Excel, APIs and Power BI. Coming soon → 05 Credentials & Research Research contributions and completed courses in Python, Excel and data analysis. Open page →