Sagar Chakraborty
Kolkata
Summary
Dynamic data professional with over three years of experience in SQL, data analysis, and full-stack system architecture. Skilled in both monolithic and microservice-based environments, proficient in database optimization, machine learning, and Python development. Adept at leading customer onboarding, delivering impactful business insights, and rapidly building and deploying custom solutions to solve complex technical challenges.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Senior Systems Engineer
Infosys
Kolkata
04.2022 - Current
- Over three years of experience managing large datasets using SQL and Excel.
- Extract and analyze complex sales data from SQL databases for business insights.
- I am currently responsible for leading new customer onboarding, managing their huge data, and ensuring smooth migration and integrity.
- Debug and resolve issues in monolithic systems, addressing both technical bugs and business logic problems.
- Optimized SQL stored procedures to significantly improve query performance, resulting in major speed enhancements in a monolithic application.
- Provide expert customer support for complex IT issues, from basic troubleshooting to enterprise-level application logic.
Education
Bachelor in Technology - Electrical Engineering
St. Thomas's College of Engineering And Technology
Kolkata08-2020
Skills
- SQL
- Data analysis
- LLMs with Ollama, LM Studio
- Python
- Machine learning
- Pandas
- TensorFlow
- PyTorch
- Database management
- NET
- C#
- Microservices
- DevOps
- ServiceNow
Certification
- Machine Learning A-Z in Python – SuperDataScience Team, Udemy (Apr 2024)
- Deep Learning A-Z in Python – SuperDataScience Team, Udemy (July 2024)
- Data Analysis with Python – FreeCodeCamp (Mar 2024)
- Azure Fundamentals – Microsoft Learn, Microsoft (Apr 2023)
Languages
Bengali
First Language
English
Proficient (C2)
C2
Hindi
Elementary (A2)
A2
Affiliations
- Exploring and experimenting with large language models (LLMs), focusing on their capabilities, benchmarking their performance, and deploying them locally for custom AI applications
Timeline
Senior Systems Engineer
Infosys
04.2022 - Current
Bachelor in Technology - Electrical Engineering
St. Thomas's College of Engineering And Technology
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