Hema (D) Kumar-Data Analyst (Working Student)
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Experience
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.
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.
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.
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.
System Engineer
Tata Consultancy Services
- Built dashboards, reports, and monitoring tools with Python and SQL.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Professional Services, Education, Sport, and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Information Technology, Research and Development, Product Development, and Operations.
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
Education
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
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Hema is based in Mannheim, Germany.
Hema speaks the following languages: English (Advanced), German (Intermediate).
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. Note that Hema may not have shared all experience and actually has more experience.
Based on recent experience, Hema would be well-suited for roles such as: Data Analyst (Working Student), Data Scientist (Working Student), Research Assistant.
Hema's most recent position is Data Analyst (Working Student) at Institute for Sport, University of Mannheim.
In recent years, Hema has worked for Institute for Sport, University of Mannheim, SAP, ZEW – Leibniz Centre for European Economic Research, and PwC India.
Hema is most experienced in industries like Information Technology, Professional Services, and Education. Hema also has some experience in Sport and Government and Administration.
Hema is most experienced in business areas like Business Intelligence, Information Technology, and Research and Development. Hema also has some experience in Product Development and Operations.
Hema has recently worked in industries like Professional Services, Information Technology, and Education.
Hema has recently worked in business areas like Business Intelligence, Research and Development, and Information Technology.
Hema holds a Master in Data Science from University of Mannheim and a Bachelor in Electronics & Communication Engineering from National Institute of Technology, Rourkela.
The availability of Hema needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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