Knowledge Base

Toolliyo Blog

Insights, tutorials, and career tips from the engineering community

All Technology Career Tips Interview Prep Dev Tools Industry News Tutorials Best Practices General AI & Developer Tools
⭐ Featured Technology
System Design Series: SQL vs NoSQL Explained Simply

Imagine you're building the next Amazon. Your application needs to store: Customer information Product catalog Orders Payments Reviews Shopping carts One of the first questions you'll face is: Should I use SQL or NoSQL?

System Admin 6m read 9 0
⭐ Featured Technology
System Design Series: Database Indexing Explained Simply

Imagine you're using Amazon during the Big Billion Sale. You search for: "iPhone 16 Pro" Within milliseconds, thousands of matching products appear. Now imagine Amazon had to scan every product in its database before showing the results. Instead of milliseconds... It could take minutes. Imagine the experience for millions of users.

System Admin 6m read 19 0
⭐ Featured Technology
System Design Series: Retry Mechanism Explained Simply

System Design Series — Part 33 Imagine you're ordering food on Swiggy. You click "Place Order." The app sends a request to the Payment Service. Suddenly... The Payment Service doesn't respond. Was the payment server completely down?

System Admin 6m read 21 0
Tutorials 4m read
SignalR Real-Time Notifications in Education Platforms: A Case Study

How an online academy shipped live class alerts, assignment nudges, and admin broadcasts with ASP.NET Core SignalR—scaling, auth, and failure modes included.

Admin
39 0 0
Best Practices 4m read
gRPC vs REST for Internal Microservices: Real Tradeoff Stories

When teams chose gRPC, when they regretted it, and how .NET hosts both—plus gateway patterns, versioning pain, and debugging stories from production.

Admin
43 0 0
Career Tips 4m read
Open Source Contributions in the .NET Ecosystem for Career Growth

How to choose .NET OSS projects, land meaningful PRs, and turn contributions into interviews—without burning weekends on abandoned repos.

Admin
39 0 0
Career Tips 4m read
From Senior Developer to Tech Lead: Promotion Roadmap with Real Examples

A practical promotion roadmap from senior .NET developer to tech lead: scope signals, stakeholder scripts, delegation habits, and real examples of what to do in your first 90 days.

Admin
41 0 0
Career Tips 4m read
Freelance .NET Developer Guide India 2025: Pricing and Contracts

Freelance .NET developer playbook for India in 2025: hourly vs fixed pricing, GST and TDS, contract clauses that prevent scope creep, and realistic rates by experience band.

Admin
33 0 0
Technology 4m read
Building an Online Learning Platform: Architecture Lessons (LMS Case Study)

Architecture lessons from a production LMS: bounded contexts, video delivery, progress tracking, multi-tenancy, and why the first version should not be 40 microservices.

Admin
34 0 0
Tutorials 4m read
Integrating Payment Gateways (Cashfree/Stripe) from ASP.NET Core Backend

Server-side payment integration for Indian and global gateways: order creation, webhooks, idempotency, and PCI scope reduction when using Cashfree and Stripe from ASP.NET Core.

Admin
47 0 0
Technology 4m read
OWASP Top 10 Fixes for .NET Web APIs You Can Ship This Week

Practical OWASP Top 10 mitigations for ASP.NET Core APIs: injection, broken auth, SSRF, security headers, and verification steps you can implement without a six-month security program.

Admin
35 0 0
Tutorials 4m read
GitHub Actions CI/CD Pipeline for ASP.NET Core: Real YAML Walkthrough

Build, test, and deploy ASP.NET Core with GitHub Actions: a production-ready workflow with caching, integration tests, security scans, and slot deployment to Azure App Service.

Admin
40 0 0
Technology 4m read
Azure Kubernetes Service (AKS) Case Study: Deploying .NET Microservices

A real AKS deployment story for .NET microservices: cluster design, Helm releases, ingress, Key Vault CSI, observability, and lessons from a production migration off App Service.

Admin
37 0 0
Tutorials 5m read
TypeScript for C# Developers: Mental Model and Migration Stories

TypeScript for C# developers: map interfaces to records, structural typing vs nominal, async pitfalls, and real migration stories from ASP.NET teams adopting Angular or React frontends.

Admin
28 0 0
Interview Prep 5m read
Angular Interview Questions 2025 with Real Project War Stories

Angular interview questions for 2025 with real project war stories: change detection, RxJS, signals, routing guards, and LMS platform failures—what mid-level and senior loops actually ask .NET full-stack devs.

Admin
32 0 0
Toolliyo Assistant
Ask about tutorials, ebooks, training, pricing, mentor services, and support. I use public site content only—not admin or internal tools.

care@toolliyo.com

Need callback? Share your details