Hariharan Kumar
Bangalore
Summary
Data Engineer with over 5 years of experience designing scalable data platforms, ETL/ELT pipelines, and analytics solutions across healthcare, education, and technology domains. Experienced in building Lakehouse architectures using PySpark, Apache Airflow, Docker, Kubernetes, Delta Lake, and Apache Iceberg. Strong background in Data Science and Analytics with expertise in Python, SQL, AWS, Databricks, machine learning, and BI tools including Power BI and Tableau.
Overview
6
6
years of professional experience
5
5
years of post-secondary education
Work History
Data Engineer II
Baxter
Bangalore
10.2025 - Current
- Designed and implemented scalable Lakehouse data pipelines using PySpark, Apache Airflow, and Medallion Architecture (Bronze, Silver, Gold).
- Built ingestion pipelines processing 50+ million records into the Bronze layer with optimized preprocessing in the Silver layer.
- Developed analytics-ready Gold datasets and materialized views for downstream reporting.
- Orchestrated ETL/ELT workflows using Apache Airflow with watermark-based incremental loading.
- Developed reusable orchestration services and managed execution across Docker containers.
- Benchmarked Delta Lake and Apache Iceberg for enterprise-scale performance and scalability.
- Designed scalable data models using SeaweedFS, MinIO, Delta Lake, and Apache Iceberg.
- Collaborated using Git, GitHub, and GitHub Copilot.
Data Science Tutor
University of East London
London
09.2024 - Current
- Delivered postgraduate lectures on Machine Learning, Data Engineering, and Quantitative Data Analysis.
- Mentored students in Python, SQL, cloud computing, and industry-focused projects.
Data Scientist
alfaTKG Co. Ltd.
07.2022 - 09.2023
- Developed CNN and ResNet models for image search and content filtering, improving accuracy by 30%.
- Reduced image processing time by 40% using optimized deep learning pipelines.
- Integrated AWS and Databricks for scalable model deployment.
Data Analyst
Leadership Boulevard Pvt. Ltd.
07.2020 - 08.2022
- Developed Power BI and Tableau dashboards to enhance visibility in business reporting.
- Automated SQL and Python data pipelines, reducing manual effort by 40%.
- Executed statistical analysis and forecasting to support informed business decision-making.
Education
Master of Science - Data Science
University of East London
London, England 06.2023 - 08.2024
Bachelor of Engineering - Computer Science
Atria Institute of Technology
Bangalore, India 06.2016 - 06.2020
Skills
- ETL/ELT
- Data Modeling
- Apache Airflow
- Python
- PySpark
- Pandas
- NumPy
- SQL
- AWS
- Databricks
- Delta Lake
- Apache Iceberg
- Lakehouse Architecture
- Medallion Architecture
- PostgreSQL
- MySQL
- Materialized Views
- Docker
- Kubernetes
- MinIO
- SeaweedFS
- Power BI
- Tableau
- Looker Studio
- Git
- GitHub
- GitHub Copilot
- Jira
- R
Timeline
Data Engineer II
Baxter
10.2025 - Current
Data Science Tutor
University of East London
09.2024 - Current
Master of Science - Data Science
University of East London
06.2023 - 08.2024
Data Scientist
alfaTKG Co. Ltd.
07.2022 - 09.2023
Data Analyst
Leadership Boulevard Pvt. Ltd.
07.2020 - 08.2022
Bachelor of Engineering - Computer Science
Atria Institute of Technology
06.2016 - 06.2020