Sachin Kalsi
Principal Data Scientist
Bengaluru, Karnataka, India
Summary
👤
Senior🎓
Top SchoolSachin Kalsi is a Principal Data Scientist based in Bengaluru with 10 years of experience building scalable NLP, ML and deep learning systems, currently leading Draup’s Data Science organization. He designs and productionizes transformer-based solutions—semantic search, RAG, text-to-SQL, NER and custom clustering—and has led integration of real-time RAG pipelines and an LLM-powered news engine for high-volume company intelligence. Known for hands-on engineering, he contributed core data-structure algorithms in Java on GitHub and built practical tooling like an HTML annotation tool that cut human effort by ~70% for extraction tasks. Beyond technical delivery, Sachin mentors teams, drives hiring decisions, and shares learnings via blogs, YouTube and open-source projects, blending research-grade models with pragmatic productization.
10 years of coding experience
11 years of employment as a software developer
Bachelor of Engineering (BE) Computer Science, Bachelor of Engineering (BE) Computer Science at Jawaharlal Nehru National College Of Engineering (VTU)
English, Kannada, Hindi
Stackoverflow
135reputation
26kreached
0answers
9questions
Github Skills (16)
data-structures10
javas10
algorithms10
data-structure10
java10
binary-search-tree10
bitwise9
bit9
fest7
mongoose6
javascript6
mongodb6
amazon-web-services6
file-upload6
amazon-s36
Programming languages (6)
Github contributions (5)
BaReinhard/Hacktoberfest-Data-Structure-and-Algorithms
Oct 2017 - Oct 2017
A repo to contains data structure s and algorithms, regardless of language.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 4 PRs in 1 day
Contributions summary:Sachin contributed various data structures and algorithms implemented in Java, including KMP search, Trie, and bitwise operations. Their work also encompassed binary search tree (BST) operations such as finding the largest BST within a tree, level order traversal, finding the lowest common ancestor, and Morris traversal. The contributions demonstrate a focus on core data structure and algorithm implementation within the Java programming language.
data-structuresdata-structure
SachinKalsi/sachinkalsi.github.io
Feb 2018 - Sep 2022
Contributions:92 commits, 6 PRs, 106 pushes in 4 years 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.