Hema Kumar - Data Analyst (Working Student)

Q: Where is Hema based?

Hema is based in Mannheim, Germany .

Q: What languages does Hema speak?

Hema speaks the following languages: English (Advanced), German (Intermediate) .

Q: How many years of experience does Hema have?

Hema has at least 10 years of experience. During this time, Hema has worked in at least 5 different roles and for 5 different companies . The average length of individual experience is 2 years and 11 months . Note that Hema may not have shared all experience and actually has more experience.

Q: What is Hema's latest experience?

Hema's most recent position is Data Analyst (Working Student) at Institute for Sport, University of Mannheim .

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

In recent years, Hema has worked for Institute for Sport, University of Mannheim , SAP , ZEW – Leibniz Centre for European Economic Research , and PwC India .

Q: Which industries is Hema most experienced in?

Hema is most experienced in industries like Information Technology (IT) , Professional Services , and Education . Hema also has some experience in Sport and Recreation and Government and Public Administration .

Q: Which business areas is Hema most experienced in?

Hema is most experienced in business areas like Business Intelligence , Information Technology (IT) , and Product Development . Hema also has some experience in Research and Development (R&D) and Operations .

Q: Which industries has Hema worked in recently?

Hema has recently worked in industries like Professional Services , Information Technology (IT) , and Education .

Q: Which business areas has Hema worked in recently?

Hema has recently worked in business areas like Business Intelligence , Information Technology (IT) , and Product Development .

Recommended expert

Mannheim, Germany

Experience

Jun 2025 - Present

10 months

Mannheim, Germany

Data Analyst (Working Student)

Institute for Sport, University of Mannheim

Conduct analytics on operational datasets using Python and Excel to support performance insights.
Apply statistical analysis to identify patterns and optimize internal processes.

Dec 2022 - May 2024

1 year 6 months

Data Scientist (Working Student)

SAP

End-to-end ML development on enterprise datasets, integrating structured and unstructured data.
Built and deployed NLP/ML pipelines, including NER, entity linking, and question-answering models.
Developed an LLM-based enterprise QA assistant using BERT, GNNs, and retrieval systems.
Implemented automated data preparation pipelines using Python, SQL, and PyTorch.
Followed best practices (GitHub, Docker, testing) and collaborated with product owners and engineers.
Communicated analytical insights and model behavior to cross-functional non-technical stakeholders.

Aug 2022 - Nov 2022

4 months

Mannheim, Germany

Research Assistant

ZEW – Leibniz Centre for European Economic Research

Preprocessed and analyzed large-scale patent-related text datasets.
Performed data analysis & visualization using Python (matplotlib, pandas) to support patent research.
Conducted text matching with semantic methods to enable record linkage.
Created reproducible workflows and documentation for internal stakeholders.

Dec 2017 - Aug 2021

3 years 9 months

India

Senior Consultant, Data & Analytics

PwC India

Designed Power BI dashboards using SQL and DAX for executive-level insights (automated ETL monitoring).
Worked with Azure cloud (Azure SQL, Data Factory) to build robust data pipelines.
Improved data quality and governance by implementing data validation scripts and workflow monitoring.
Collaborated with business stakeholders to translate operational problems into actionable data analyses.

Jun 2014 - Dec 2017

3 years 7 months

India

System Engineer

Tata Consultancy Services

Built dashboards, reports, and monitoring tools with Python and SQL.

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 Information Technology (5 years), Professional Services (3.5 years), Education (1 year), Sport (1 year), and Government and Administration (0.5 years).

Information Technology

Professional Services

Education

Sport

Government and Administration

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 Business Intelligence (9.5 years), Information Technology (5 years), Product Development (1.5 years), Operations (1 year), and Research and Development (1 year).

Business Intelligence

Information Technology

Product Development

Operations

Research and Development

Summary

Data Scientist with 4+ years of hands-on experience delivering analytics, ML models, dashboards, and end-to-end data solutions across research and enterprise domains. Skilled at translating business questions into analyses, building statistical models, and deploying automated pipelines that create measurable business impact.

Expertise spans Python, SQL, data engineering, dashboarding (Power BI), LLMs, NLP, and cloud systems (Azure). Known for a pragmatic approach, strong stakeholder communication, and building production-ready analyses, dashboards, and GenAI solutions.

Skills

Programming: Python, Sql, Pytorch, Spacy, Transformers, Xgboost, Pandas
Genai & Nlp: Nlp, Llms, Knowledge Graphs, Gnns, Named Entity Recognition (Ner), Retrieval-augmented Generation, Ai Agents, Autonomous Reasoning, Multi-agent Workflows
Visualization & Bi: Power Bi, Matplotlib, Automated Reporting
Frameworks & Tools: Fastapi, Docker, Mlflow, Git, Jupyter, Vs Code, Langgraph

Languages

English

Advanced

German

Intermediate

Education

Sep 2021 - Feb 2025

University of Mannheim

Master of Science · Data Science · Mannheim, Germany

National Institute of Technology, Rourkela

Bachelor of Technology · Electronics & Communication Engineering · Rourkela, India

Kakatiya Public School (CBSE)

All India Senior Secondary School Examination (High School Education) · Visakhapatnam, India

Profile

Created

November 2025

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Frequently asked questions

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

Where is Hema based?

Hema is based in Mannheim, Germany.

What languages does Hema speak?

Hema speaks the following languages: English (Advanced), German (Intermediate).

How many years of experience does Hema have?

Hema has at least 10 years of experience. During this time, Hema has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 2 years and 11 months. Note that Hema may not have shared all experience and actually has more experience.

What roles would Hema be best suited for?

Based on recent experience, Hema would be well-suited for roles such as: Data Analyst (Working Student), Data Scientist (Working Student), Research Assistant.

What is Hema's latest experience?

Hema's most recent position is Data Analyst (Working Student) at Institute for Sport, University of Mannheim.

What companies has Hema worked for in recent years?

In recent years, Hema has worked for Institute for Sport, University of Mannheim, SAP, ZEW – Leibniz Centre for European Economic Research, and PwC India.

Which industries is Hema most experienced in?

Hema is most experienced in industries like Information Technology (IT), Professional Services, and Education. Hema also has some experience in Sport and Recreation and Government and Public Administration.

Which business areas is Hema most experienced in?

Hema is most experienced in business areas like Business Intelligence, Information Technology (IT), and Product Development. Hema also has some experience in Research and Development (R&D) and Operations.

Which industries has Hema worked in recently?

Hema has recently worked in industries like Professional Services, Information Technology (IT), and Education.

Which business areas has Hema worked in recently?

Hema has recently worked in business areas like Business Intelligence, Information Technology (IT), and Product Development.

What is Hema's education?

Hema holds a Master in Data Science from University of Mannheim and a Bachelor in Electronics & Communication Engineering from National Institute of Technology, Rourkela.

What is the availability of Hema?

Hema is immediately available for suitable projects.

What is the rate of Hema?

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