@ujjwal1805
UJJWAL BALAJI
@ujjwal1805
Learning | Exploring | Currently working in Genpact as Lead Associate- EUC
Delhi, IndiaJoined January 2025
About
I'm a 2024 Computer Science Undergrad from SRM University, Sonepat, Delhi-NCR, specialising in AI & Data Science. Currently working at Genpact as a Lead Associate – EUC, and passionately learning AI, NLP, and ML, while building full stack projects to sharpen my skills. I enjoy reading and writing tech blogs and stay driven by a constant curiosity for all things tech.
Available for
Looking for good contents which creates impact me as tech savy!
Recently published
Scaling PostgreSQL to 800 Million Users: OpenAI’s Surprisingly Simple Secret
Mar 29 · 7 min read · Scaling PostgreSQL to 800 Million Users: OpenAI's Surprisingly Simple Secret Spoiler alert: It's just one primary database and 50 read replicas. That's it. When you hear that OpenAI serves over 800 mi
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How Amazon Used Keyboard Latency to Uncover a North Korean IT Imposter
Dec 22, 2025 · 4 min read · Imagine logging into your corporate workstation, typing away at your daily tasks, completely unaware that each keystroke carries a hidden signature—a geographical fingerprint embedded in the milliseconds between keypress and system acknowledgment. Th...
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Building a Complete RAG Pipeline from Scratch: Data Ingestion to Retrieval
Sep 6, 2025 · 5 min read · Introduction to RAG and Why It Matters Retrieval-Augmented Generation (RAG) has revolutionised how we interact with large language models by combining the power of information retrieval with generative AI. In this comprehensive guide, we'll build a c...
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How Inverted Indexes Power Every Search Engine You Use
Aug 1, 2025 · 4 min read · If you've ever wondered how search engines like Google, Elastic-search, or even the search feature in your favourite app work so fast, the answer lies in a fundamental data structure called the inverted index. In this post, We'll break down: What in...
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