Armin Motahar - Graduate research assistant

Q: Where is Armin based?

Armin is based in Essen, Germany .

Q: What languages does Armin speak?

Armin speaks the following languages: German (Advanced), English (Advanced), Persian (Advanced) .

Q: How many years of experience does Armin have?

Armin has at least 8 years of experience. During this time, Armin has worked in at least 4 different roles and for 4 different companies . The average length of individual experience is 2 years . Note that Armin may not have shared all experience and actually has more experience.

Q: What is Armin's latest experience?

Armin's most recent position is Graduate research assistant at Duisburg-Essen University .

Q: What companies has Armin worked for in recent years?

In recent years, Armin has worked for Duisburg-Essen University .

Q: Which industries is Armin most experienced in?

Armin is most experienced in industries like Education , Professional Services , and Information Technology (IT) . Armin also has some experience in Media, Entertainment and Publishing , Transportation and Logistics , and Manufacturing .

Q: Which business areas is Armin most experienced in?

Armin is most experienced in business areas like Research and Development (R&D) , Business Intelligence , and Product Development . Armin also has some experience in Accounting .

Q: Which industries has Armin worked in recently?

Armin has recently worked in industries like Education .

Q: Which business areas has Armin worked in recently?

Armin has recently worked in business areas like Research and Development (R&D) .

Recommended expert

Essen, Germany

Experience

Oct 2020 - Dec 2024

4 years 3 months

Essen, Germany

Graduate research assistant

Duisburg-Essen University

Conducted advanced machine learning methods on large-scale inequality datasets for forecasting, clustering and feature importance to assess impacts on growth
Integrated multi-source inequality datasets into a unified panel; applied reproducible preprocessing pipelines including variable harmonization, outlier treatment, normalization, and multiple-imputation methods
Published four papers in international peer-reviewed journals

Apr 2018 - Aug 2019

1 year 5 months

Tehran, Iran, Islamic Republic of

Data scientist

Divar

Built and optimized ad recommendation and search-ranking models to personalize user feeds, increasing CTR by 18% and conversion to contact by 12%
Developed automated A/B testing pipelines to evaluate product and UI changes, enabling the product team to make data-driven rollout decisions to lift customer engagement
Designed BI dashboards and real-time KPI monitoring tools for product managers and executives to track traffic, conversion funnels, and churn, cutting reporting time and improving decision-making speed

Sep 2017 - Feb 2018

6 months

Aschaffenburg, Germany

Business analyst intern

Kion Group AG

Formulated and solved a cost allocation project for the headquarter shared services (R&D, quality, etc) across global branches using activity drivers and game theory methods

Aug 2014 - Jul 2016

2 years

Tehran, Iran, Islamic Republic of

Data analyst

Abkavosh Sarzamin Consulting Engineers

Provided executives and clients with statistical forecasting models and scenario-analysis tools, enabling data-driven planning and improved resource allocation
Delivered holistic, data-driven analyses of key cost and revenue drivers, enabling managers to optimize resource allocation and boost overall profitability by 15% in a year

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Education (4 years), Professional Services (2 years), Information Technology (1.5 years), Media and Entertainment (1.5 years), Transportation (0.5 years), and Manufacturing (0.5 years).

Education

Professional Services

Information Technology

Media and Entertainment

Transportation

Manufacturing

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Research and Development (4 years), Business Intelligence (3.5 years), Product Development (1.5 years), and Accounting (0.5 years).

Research and Development

Business Intelligence

Product Development

Accounting

Summary

Passionate data scientist with an award-winning, machine learning–driven PhD in Economics and an MBA that added strategy to my quantitative toolkit. I turn complex data into clear business decisions that move KPIs.

Languages

German

Advanced

English

Advanced

Persian

Advanced

Education

Oct 2019 - Dec 2024

University of Duisburg-Essen

PhD, A Machine Learning Approach to the Impact of Inequality on Growth · Economics · Essen, Germany

Sep 2016 - Feb 2018

Hochschule Esslingen

MBA, Ways of Cost Allocation at International Matrix Organizations · MBA · Esslingen, Germany

Sep 2009 - Jul 2014

University of Tehran

BSc, Optimization of Parameters in Statistical Models Using Gradient Based Methods · Computational Engineering · Tehran, Iran, Islamic Republic of

Profile

Created

October 2025

Last Update

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Armin based?

Armin is based in Essen, Germany.

What languages does Armin speak?

Armin speaks the following languages: German (Advanced), English (Advanced), Persian (Advanced).

How many years of experience does Armin have?

Armin has at least 8 years of experience. During this time, Armin has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 2 years. Note that Armin may not have shared all experience and actually has more experience.

What roles would Armin be best suited for?

Based on recent experience, Armin would be well-suited for roles such as: Graduate research assistant, Data scientist, Business analyst intern.

What is Armin's latest experience?

Armin's most recent position is Graduate research assistant at Duisburg-Essen University.

What companies has Armin worked for in recent years?

In recent years, Armin has worked for Duisburg-Essen University.

Which industries is Armin most experienced in?

Armin is most experienced in industries like Education, Professional Services, and Information Technology (IT). Armin also has some experience in Media, Entertainment and Publishing, Transportation and Logistics, and Manufacturing.

Which business areas is Armin most experienced in?

Armin is most experienced in business areas like Research and Development (R&D), Business Intelligence, and Product Development. Armin also has some experience in Accounting.

Which industries has Armin worked in recently?

Armin has recently worked in industries like Education.

Which business areas has Armin worked in recently?

Armin has recently worked in business areas like Research and Development (R&D).

What is Armin's education?

Armin holds a Doctorate in Economics from University of Duisburg-Essen, a Master in MBA from Hochschule Esslingen and a Bachelor in Computational Engineering from University of Tehran.

What is the availability of Armin?

Armin is immediately available full-time for suitable projects.

What is the rate of Armin?

Armin's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.