Engineering Blog & Tech Deep Dives

Kashinath Chavan • JavaScript & Engines • Aug 24

TypeScript 5.x Deep Dive: Satisfies Operator, Const Type Params & Branded Types

TypeScript 5.x brings game-changing features that reshape how enterprise applications are built. Master the satisfies operator, const type parameters, decorators, and branded types with real-world production code examples.

⏱️ 6 min read 👁️ 3846 views 👏 512 claps ⭐ Featured

TypeScript 5.x Deep Dive: Satisfies Operator, Const Type Params & Branded Types

Kashinath Chavan • Python & Backend • Aug 23

Advanced Python Handbook by Kashinath: Internals, Concurrency & Meta-Programming

A masterclass in advanced Python architecture: deep dive into generator pipelines, custom context managers, metaclasses, descriptors, asyncio event loops, and memory profiling.

⏱️ 3 min read 👁️ 193 views 👏 42 claps ⭐ Featured

Advanced Python Handbook by Kashinath: Internals, Concurrency & Meta-Programming

Kashinath Chavan • Developer Tooling & Compilers • Aug 23

Docker & Docker Compose Deep Dive: Multi-Stage Builds, Layer Caching & Production Optimization

Docker multi-stage builds cut production image sizes from 1.2GB to under 80MB. Learn layer caching strategies, BuildKit secrets, health checks, and production-grade docker-compose patterns for Django, Node, and Next.js apps.

⏱️ 5 min read 👁️ 4126 views 👏 487 claps ⭐ Featured

Docker & Docker Compose Deep Dive: Multi-Stage Builds, Layer Caching & Production Optimization

Kashinath Chavan • Interview Prep & Database • Aug 22

SQL for Power Plant Performance Monitoring: Querying Time-Series Data with Window Functions

Monitoring power plant efficiency requires analyzing time-series data from sensors. Learn how to use window functions to calculate rolling averages, detect anomalies, and optimize query performance with large datasets.

⏱️ 3 min read 👁️ 14 views 👏 0 claps ⭐ Featured

SQL for Power Plant Performance Monitoring: Querying Time-Series Data with Window Functions

Kashinath Chavan • Data Structures & Algorithms • Aug 22

Python Practice Programs & Logic Building: 100+ Essential Coding Exercises

Master coding round interviews with 100+ solved logic problems: Palindromes, Fibonacci series, Matrix transformations, Armstrong numbers, and recursive tree traversals.

⏱️ 2 min read 👁️ 231 views 👏 50 claps ⭐ Featured

Python Practice Programs & Logic Building: 100+ Essential Coding Exercises

Kashinath Chavan • Interview Prep & Database • Aug 22

System Design Interview: Designing Twitter Feed, WhatsApp & YouTube Architecture

Step-by-step system design walkthroughs for FAANG interviews. Learn how to design scalable distributed systems for Twitter's news feed, WhatsApp's messaging, and YouTube's video pipeline with CAP theorem, consistent hashing, and sharding explained.

⏱️ 5 min read 👁️ 5214 views 👏 693 claps ⭐ Featured

System Design Interview: Designing Twitter Feed, WhatsApp & YouTube Architecture

Kashinath Chavan • Python & Backend • Aug 21

Mastering Pytest: Automated Testing, Fixtures & Parametrization for Python

Learn professional unit testing with Pytest: test fixtures, dependency injection, parametrization, mocking external APIs, and test coverage reporting.

⏱️ 1 min read 👁️ 265 views 👏 58 claps

Mastering Pytest: Automated Testing, Fixtures & Parametrization for Python

Kashinath Chavan • Python & Backend • Aug 21

Python Asyncio Masterclass: Building a High-Concurrency Web Scraper with aiohttp

Python's asyncio event loop can handle 10,000+ concurrent connections on a single thread. Learn coroutines, tasks, semaphores, and build a real production async web scraper with aiohttp that is 40x faster than the requests equivalent.

⏱️ 5 min read 👁️ 2985 views 👏 398 claps

Python Asyncio Masterclass: Building a High-Concurrency Web Scraper with aiohttp

Kashinath Chavan • Interview Prep & Database • Aug 20

SQL for Financial Transaction Analysis: Fraud Detection with Recursive CTEs

Detecting fraudulent transactions in real-time requires tracing complex money flow paths. Learn how recursive CTEs can trace transaction trees, find circular patterns, and flag suspicious activity.

⏱️ 3 min read 👁️ 8 views 👏 0 claps ⭐ Featured

Tech Blog & Engineering Masterclasses