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Doyel De Sarkar

@doyeldesarkar

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Data Scientist delivering AI-driven forecasting, automation and actionable insights to improve business efficiency.

Netherlands

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What I'm looking for

I seek a data-focused role applying ML, forecasting and GEN AI to build scalable data products, collaborate cross-functionally, and drive measurable business impact.

I am a results-oriented Data Scientist experienced in leading end-to-end AI and data projects that drive measurable business impact. I blend advanced machine learning, deep learning and GEN AI techniques with strong stakeholder collaboration to translate business problems into practical solutions.

My work includes building multivariate global forecasting prototypes (LSTM, GRU, N-BEATS) for volatile time series and creating customized LLM-based chatbots integrated with Streamlit and LangChain to automate support workflows. These initiatives delivered tangible efficiency gains across sales, logistics and support teams.

In industry roles I have implemented automated reporting with Power BI, developed recommender systems, and engineered containerized time-series microservices for production environments. At Tata Consultancy Services I led anomaly detection and cloud migration projects that produced significant cost savings and business value.

I value clear communication, hypothesis-driven analysis and collaborative delivery. I seek roles where I can apply my forecasting, ML/GEN AI and data engineering skills to solve complex problems and scale data products that improve operational performance.

Experience

Work history, roles, and key accomplishments

Data Scientist

Robert Bosch GmbH

May 2023 - May 2024 (1 year)

Integrated AI-driven insights into business development, implemented automated Power BI reporting, and developed predictive analytics and customer segmentation solutions that increased business efficiency equivalent to 10 FTE across projects.

Python Power BI Forecasting Machine Learning Time Series Deep Learning Stakeholder Management Data Visualization

Data Scientist

Aparkado

Sep 2022 - Mar 2023 (6 months)

Collected and cleansed geospatial data, built interactive dashboards in MongoDB Atlas and Tableau, and contributed to a recommender system that increased app usage by ~30%.

Geospatial MongoDB Tableau Python Recommender Systems Data Cleaning Dashboards ETL

Data Science Research Assistant

Otto von Guericke University

Nov 2021 - Sep 2022 (10 months)

Engineered a microservice to predict server utilization using XGBoost, Prophet and ARIMA, containerized models with Docker, and automated deployment scripts to improve portability and scalability.

Time Series XGBoost Prophet ARIMA Python Docker Microservices Automation

Business Analyst

Tata Consultancy Services Ltd

Jan 2016 - Mar 2021 (5 years 2 months)

Led multiple data science initiatives including anomaly detection on sensor data (DBSCAN, Isolation Forest) saving €150k annually, managed cloud migration of legacy systems delivering €1M in business value, and owned data quality and reporting.

Anomaly Detection DBSCAN Isolation Forest Cloud Migration Data Quality SQL Stakeholder Management Project Management

Application Analyst

Tata Consultancy Services Ltd

Mar 2010 - Dec 2015 (5 years 9 months)

Led AS400 migration and mainframe application development for international clients, managed transaction monitoring and fraud detection, and mentored team members while delivering domain-specific solutions.

AS 400 COBOL Transaction Monitoring Fraud Detection Mentoring Agile

Education

Degrees, certifications, and relevant coursework

Otto von Guericke University Magdeburg

Master of Science, Data Science

Completed a master's degree focused on data science with coursework and research projects in forecasting, reinforcement learning, and scalable ML deployment.