Sandip Deb

Always curious. Always building. Always learning. ✨

[Swapna Kumar Panda @swapnakpanda]

Learning System Design in 2026?

Go for these completely FREE courses:

1. Fundamentals
https://t.co/IDGW3De1EA

2. API Design
https://t.co/AUx3IzQkir

3. Rate Limiting
https://t.co/s6vyKcgnZE

4. Load Balancing
https://t.co/KlhVjDQyy6

5. Caching
https://t.co/zQr7bzsZm2

6. Message Queues
https://t.co/UiFwA4ZB56

7. Sharding & Partitioning
https://t.co/ZsLV5rVcrz

8. Database Replication
https://t.co/dtEvSPXrB8

9. Consistent Hashing
https://t.co/Oy1BUf23xe

10. CAP Theorem
https://t.co/jFfObbFc39

11. Microservices
https://t.co/nYizg4BLrA

12. Fault Tolerance
https://t.co/HpLji5RTod

13. Scalability
https://t.co/uovZHvzSBf

14. Event-Driven Architecture
https://t.co/cAkbLpPfqd

15. Service Discovery
https://t.co/tdjRfah2re

[Edison @CodeEdison]

Backend development is “simple” as long as you understand these fundamentals:

HTTP basics
• Methods
• Status codes
• Request and response headers

Security & identity
• Authentication vs authorization
• JWTs, sessions, and cookies
• OAuth 2.0
• Password hashing (bcrypt / Argon2)
• Salting and peppering
• 2FA and SSO
• RBAC and ABAC

API fundamentals
• API design principles
• RESTful APIs
• GraphQL
• WebSockets
• API versioning
• Rate limiting and throttling
• Pagination, filtering, and sorting
• File uploads and streaming

Server concepts
• Middleware
• Error handling
• Logging and monitoring
• APM (performance monitoring)
• Server-side rendering

Databases
• Database design
• SQL and NoSQL
• Indexing and query optimization
• ACID properties
• CAP theorem
• Normalization vs denormalization
• ORMs
• Connection pooling
• Transactions, migrations, and seeding

Caching & performance
• Caching strategies
• Redis and Memcached
• CDN integration

Scalability & architecture
• Load balancing
• Horizontal vs vertical scaling
• Monoliths, microservices, and SOA
• Message queues and Pub/Sub
• Event-driven systems
• CQRS and Saga patterns
• API gateways and service mesh

Infrastructure & DevOps
• Docker containers
• Kubernetes orchestration
• CI/CD pipelines
• Environment variables
• Configuration and secrets management

Security hardening
• CORS
• CSRF protection
• XSS prevention
• SQL injection prevention
• Input validation and output sanitization

Background processing
• Background jobs
• Cron jobs and schedulers
• Worker processes

Concurrency & runtime
• Async/await
• Promises and callbacks
• Thread pools
• Process and memory management
• Garbage collection

Quality & tooling
• Testing (unit, integration, E2E)
• Mocking and stubbing
• API documentation (Swagger / OpenAPI)
• Postman or Insomnia
• Git and version control
• Code reviews
• Debugging and benchmarking

Production
• Deployment strategies
• Monitoring in production

Once you grasp these, backend stops being “mysterious” and starts becoming systematic.

[Evan Luthra @EvanLuthra]

Anthropic pays engineers $750,000+ a year to understand how LLMs work.

Stanford just put a 2 hour lecture that covers 80% of it for FREE.

Bookmark this. Give it 2 hours today.

It might be the highest ROI thing you do this month:

[Joseph Brendan @Joe_brendan_]

Instead of learning how to write code

- Learn why an app needs a websocket
- Understand polling
- Know what caching is
- Know why & when to optimize DB calls
- Know when it should be a monolith or when MVC is best
- Know how to correct and balance your CSS
- know how to structure your dashboard page architecture. are you loading pages or you're routing views

There are lots of things you should shift your learning focus to know that is not writing code

Should you learn how to read code at the basic level? Yes.

[Dhanian 🗯️ @e_opore]

Java Project Ideas for Every Developer.

Beginner Java Projects

-> Basic Banking System (CLI)
-> Student Grade Calculator
-> Multiplication Table Generator
-> Palindrome Checker
-> Prime Number Generator
-> Random Password Generator
-> To-Do List (CLI)
-> Contact Book (CLI)
-> Random Quote Generator
-> Simple Interest Calculator
-> Unit Converter (Length, Weight)
-> Basic File Reader/Writer
-> Word Count Tool
-> Email Slicer Tool
-> Random Name Generator
-> Random Username Generator
-> Basic Encryption Tool (Caesar Cipher)
-> Basic Decryption Tool
-> Random Sentence Generator
-> Random Math Quiz
-> Random Story Generator
-> Simple Reminder App (CLI)
-> Basic Calendar CLI
-> Random Lottery Picker
-> Random Team Generator
-> Simple CSV Reader
-> JSON Parser Tool
-> Random Data Generator
-> File Organizer Tool
-> Basic Backup Script
-> Random File Finder
-> Text Formatter Tool
-> String Manipulation Toolkit
-> Basic Chatbot (rule-based)
-> Random Joke Generator
-> Random Event Generator
-> Random Task Generator
-> Random Habit Generator
-> Random Password List Generator
-> Random Note CLI App

Intermediate Java Projects

-> GUI Calculator (Swing/JavaFX)
-> GUI To-Do List App
-> GUI Contact Manager
-> GUI Email Client (SMTP/IMAP)
-> REST API using Spring Boot
-> CRUD API with Spring Boot + MySQL
-> Authentication System (JWT + Spring Security)
-> Blog Backend with Spring Boot
-> E-commerce Backend (basic)
-> File Upload Service
-> URL Shortener API
-> API Rate Limiter
-> Logging System with Log4j
-> Caching System with Redis
-> Multithreading File Processor
-> Producer-Consumer System
-> Web Scraper with Jsoup
-> Chat Server with WebSockets
-> Notification System
-> Email Service Backend
-> Scheduling System (Quartz)
-> Search Engine (basic)
-> Recommendation System (basic)
-> Payment Integration Backend
-> REST Client Application
-> GraphQL API with Java
-> Dockerized Java App
-> Microservice with Spring Boot
-> API Gateway (Spring Cloud)
-> Config Server (Spring Cloud)

Advanced Java Projects

-> Full Stack E-commerce System (Spring Boot + React)
-> Microservices Architecture System (Spring Cloud)
-> Distributed System with Service Discovery (Eureka)
-> API Gateway with Load Balancing
-> High-scale Chat Application (WebSockets + Kafka)
-> Real-time Data Processing System
-> Event-driven System with Kafka
-> Distributed Job Queue System
-> Scalable File Storage System
-> Cloud-native Java Application (Kubernetes)
-> Serverless Java Backend (AWS Lambda)
-> Identity & Access Management System (IAM)
-> OAuth2 Authorization Server
-> Payment Gateway System
-> Fraud Detection System
-> AI-powered Recommendation Engine
-> Real-time Analytics Dashboard Backend
-> Data Pipeline System (ETL with Java)
-> Distributed Logging System (ELK + Java)
-> Observability Platform
-> Multi-region Deployment System
-> High-performance Cache System (Redis Cluster)
-> Distributed Locking System
-> Blockchain-based Java Backend
-> Secure Messaging System
-> Multiplayer Game Server Backend
-> IoT Data Processing System
-> Smart Home Backend System
-> AI Chatbot Backend (Java + AI APIs)
-> Code Execution Sandbox (Java-based)
-> API Marketplace Platform
-> SaaS Platform Backend
-> No-code Backend Engine
-> DevOps Automation Tool
-> CI/CD System (Java-based)
-> Container Orchestration Tool
-> Cloud Cost Optimization Tool
-> Security Monitoring System
-> Threat Detection System
-> Large-scale Notification System
-> Distributed Rate Limiting System
-> High-scale Streaming Platform
-> YouTube-like Backend System
-> Uber-like Backend System
-> Netflix-like Backend System
-> Search Engine Backend (advanced)
-> Real-time Collaboration Tool (Google Docs-like)
-> Financial Trading System Backend
-> AI-powered Code Review Tool

Java Projects with Source Code

If you want complete Java projects with source code, architecture, and real-world implementations, check out this ebook:

Java Projects with Source Code
https://t.co/kHTjfoHnfH

[Akshay Saini @akshaymarch7]

I’ve been noticing something recently…
The way I code has changed a lot.

Earlier it was simple.
I’d sit, think, write code, get stuck, Google, repeat.

Now it’s more like…
I think → ask AI → get an answer → then spend time figuring out if it’s even correct.

That last part is surprisingly hard.

Honestly, writing code feels easier now.
But understanding it properly feels… harder.

Sometimes AI gives something that looks perfect, but deep down I’m not fully convinced.
And then you spend time untangling it.

I think the skill is shifting.

Earlier it was about “can you build this?”
Now it’s more about “can you judge this?”

A lot of people are saying AI will do everything.
Maybe it will help a lot.

But someone still has to take responsibility for the code.
And that part hasn’t changed.

I’ve started caring a lot more about fundamentals because of this.

Because tools are getting better very fast.
But clear thinking… that still is very important.

Not sure if this makes sense.
But things definitely feel different now.

In future I'm pretty sure AI is just going to improve a lot and make very less mistakes.
Strange time to be alive.

[Vishwas @CodevolutionWeb]

https://t.co/kr1v2z9M0G

[Akshay Saini @akshaymarch7]

The future belongs to engineers who can:
• Learn fast
• Unlearn faster
• Stay curious about new tech
• Always remain agile and keep upskilling

[Sandip Deb @SandipDeb_05]

Every challenge I face as a developer teaches me something new. It’s not about being perfect,
It’s about improving a little every day.

[forloop @forloopcodes]

Hiring the guy with the best portfolio (mern/next)

Drop the link 👇

[Alvaro Cintas @dr_cintas]

What a crazy week in AI 🤯

- ElevenLabs v3
- Runner H Agent
- Leo AI gets Veo 3
- Mirage Studio AI Actors
- Google’s Gemini 2.5 Pro
- HeyGen IV new AI Studio
- OpenAI Data Connectors
- Google Phone App Local AI
- Mistral Vibe Coding Assistant

Here’s EVERYTHING you need to know:

[Akshat katiyar @yellowfox_h4xor]

@diiksshaaaa Learn all the common Data structures and then you can follow this for interview prep - https://t.co/WWtRdxgniv

[Marcel @marcelkargul]

Reply with your website and I'll rate it.

I'll answer everyone...

[Akshay Saini @akshaymarch7]

Everyone's celebrating Cursor being free for students.
But nobody's asking: is this actually good for learning?

AI should help you think, not think for you.

I repeat,
"AI should help you think, not think for you."

Learn the hard way first, then use tools to go faster.
Don’t skip the struggle. 🙏

[Magna Ding @MagnaDing]

10 ChatGPT prompts that will turn you into a Superhuman:

(Save it for later):

[Shalini Tewari @maybeshalinii]

Did you know your browser doesn’t render HTML, CSS, and JavaScript in the order they appear?

Here’s what actually happens:

[Arsalan @AIwithArsalan]

I don't understand why people don't use ChatGPT for job search!

Copy and paste these ChatGPT prompts to land your dream job:

[Yogini Bende @hey_yogini]

Any developers here who’ve built a portfolio site?

Drop your links below. I’d love to check them out and feature a few on the blog

[Cory House @housecor]

10 lessons I've learned about handling React state over the last 7 years...

(thread)

#react #reactjs