Engineering Blog & Tech Deep Dives

Kashinath Chavan • Interview Prep & Database • Aug 16

SQL for Healthcare Analytics: Patient Wait Times, Readmission Rates & HIPAA-Compliant Aggregations

Healthcare data analysis requires careful handling of PHI. Learn how to compute wait times, readmission rates, and resource utilization while maintaining privacy and compliance.

⏱️ 2 min read 👁️ 5 views 👏 0 claps

SQL for Healthcare Analytics: Patient Wait Times, Readmission Rates & HIPAA-Compliant Aggregations

Kashinath Chavan • Database & SQL • Aug 16

PostgreSQL Query Optimization: Understanding B-Tree Indexes, EXPLAIN ANALYZE & Buffer Hits

Demystify query performance in PostgreSQL. Learn how sequential scans, index scans, bitmap heap scans, and memory work behind every high-speed SQL query.

⏱️ 1 min read 👁️ 259 views 👏 64 claps

PostgreSQL Query Optimization: Understanding B-Tree Indexes, EXPLAIN ANALYZE & Buffer Hits

Kashinath Chavan • Career & Git Roadmaps • Aug 16

Complete Python & Django Full-Stack Developer Roadmap for Freshers (2026)

A comprehensive step-by-step career guide for college students and fresh graduates to transition from zero coding knowledge to a hired Full-Stack Python Django Software Engineer.

⏱️ 1 min read 👁️ 444 views 👏 98 claps

Complete Python & Django Full-Stack Developer Roadmap for Freshers (2026)

Kashinath Chavan • Django & Web Architecture • Aug 16

Building SaaS Stripe Payment Integration: Subscriptions, Webhooks & Proration in Django

Build a production-ready Stripe subscription system in Django with webhook handling, subscription lifecycle management, proration for plan upgrades, and the Customer Portal.

⏱️ 4 min read 👁️ 3211 views 👏 438 claps

Building SaaS Stripe Payment Integration: Subscriptions, Webhooks & Proration in Django

Kashinath Chavan • Python & Backend • Aug 15

Mastering Python Object-Oriented Programming (OOP) with Practical Examples

Deep dive into OOP in Python: understand classes, inheritance, encapsulation, polymorphism, abstract base classes, and dunder methods with clean production code.

⏱️ 1 min read 👁️ 483 views 👏 106 claps

Mastering Python Object-Oriented Programming (OOP) with Practical Examples

Kashinath Chavan • Career & Git Roadmaps • Aug 15

Git Advanced Workflows: Interactive Rebase, Cherry-Pick, Bisect & Worktrees

Git power users know commands that make time travel possible. Learn interactive rebase to sculpt perfect commit histories, git bisect to find the exact commit that introduced a bug in 12 steps, cherry-pick for surgical code transplants, and worktrees for parallel feature development.

⏱️ 5 min read 👁️ 2651 views 👏 347 claps

Git Advanced Workflows: Interactive Rebase, Cherry-Pick, Bisect & Worktrees

Kashinath Chavan • Interview Prep & Database • Aug 14

SQL for Travel Booking: Finding Cheapest Multi-City Itineraries with Recursive Queries

Building a flight search engine requires finding optimal routes. Learn how to use recursive CTEs to explore city graphs, compute total prices, and find the cheapest multi-city itineraries.

⏱️ 3 min read 👁️ 6 views 👏 0 claps

SQL for Travel Booking: Finding Cheapest Multi-City Itineraries with Recursive Queries

Kashinath Chavan • Python & Backend • Aug 14

The JavaScript Event Loop Explained: Microtasks, Macrotasks and Execution Contexts

A visual step-by-step breakdown of how single-threaded JavaScript handles asynchronous operations, Promise microtask queues, setTimeout timers, and UI render ticks.

⏱️ 1 min read 👁️ 304 views 👏 76 claps

The JavaScript Event Loop Explained: Microtasks, Macrotasks and Execution Contexts

Kashinath Chavan • Career & Git Roadmaps • Aug 14

How to Crack Off-Campus IT & Software Engineering Placement Drives (2026)

Proven strategies for college students and fresh graduates to secure high-paying tech jobs through off-campus recruitment drives, cold outreach, ATS resume design, and technical preparation.

⏱️ 1 min read 👁️ 520 views 👏 114 claps

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