Chanchal Gopalakrishnan

Chanchal Gopalakrishnan

Machine learning Engineer
Germany
German, English

About Me

Machine learning Engineer with experience in ETL, NLP-based data processing, forecasting, predictive modeling, and end-to-end ML pipelines. Experienced in Python, Elasticsearch, Azure, AWS, Docker, Airflow, and machine l…

Experience

Machine learning engineer

Bayer
Feb 2023 - Present · 3 years 4 months

I am working on my thesis at Bayer where I am creating a centralized data repository for biomedical annotated data. This involves implementing named entity recognition and comparing different domain models to improve accuracy. I am also contributing to the development of a question answering system for biomedical data using GPT-J.

Machine learning Engineer (Master Thesis)

Bayer (Research and Development), Berlin, Germany
Feb 2023 - Present · 3 years 5 months

Implemented ETL on annotated biomedical data from different sources and parsing it to one unified format (Json).
Integrated data into Elasticsearch enabling easy utilization for machine learning research.
Developed and compared fine-tuning of domain models using Bert, with the goal of enhancing Named Entity Recognition on the integrated Elasticsearch data.
Collaborated in Research to provide solutions for Questing Answering system encompassing Data Generation, finetuning using Large Language Models and Generative AI Techniques.

Machine learning Engineer

BMW Group, Munich, Germany
Jan 2022 - Dec 2022 · 11 months

Processed and transformed real-time data in different formats using Python libraries.
Handled imbalanced and missing data that yielded significant improvements in accuracy of models.
Created an NLP-based data processing preparation pipeline leading to increased accuracy, better predictions, and valuable insights, enabling faster model iteration and deployment by 20%.
Developed ML end-to end pipeline that clusters defects reported by customers in automotive components.
Co-ordinated the development and implementation of forecasting and predictive model, which helped in identifying different patterns and relations that provided impactful business processes that led to growth and innovation.

Data Analyst/Performance Engineer

Capgemini India Pvt Ltd, Bangalore, India (Australian New Zealand Bank)
Jan 2017 - Mar 2021 · 4 years 2 months

Collaborated in Agile Scrum Workflow and collaborated with Cross-functional team, gathering Business Requirements, design/execution of Python scripts to automate data triggering resulting in a 50% reduction in manual effort.
Implemented ELT process, of extracting the financial data from Relational database using (Postgres SQL) or API integration.
Evaluated data and performance metrics using data analytics tools for data Visualization and monitoring which helped provide valuable, innovative solutions to the client.

Skills

Python SQL Database Machine Learning Algorithms Pytorch NumPy Pandas Scikit-learn Matplotlib Keras TensorFlow PyTorch CI/CD Microsoft Azure PostgreSQL MySQL NoSQL Apache PySpark Jupyter Notebooks MLflow TensorBoard HTML5 Statistical methods Statistics Deep learning Boosting algorithms Neural networks Unsupervised learning Transformers LLMs NLTK OpenCV Computer Vision Data Engineering Git GitLab AWS SageMaker Jira AWS S3 Docker Linux Flask Airflow SVR Linear Regression Isolation Forest Natural Language Processing Tableau ETL Heroku Elasticsearch BERT Agile Scrum
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