Problem-Solving Engineer Frontend • Backend • DSA • System Design Think first. Code later. CodeWithIshwar
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Hi 👋 I’m Ishwar.
12+ years in software engineering.
I share DSA, system design, and real-world coding insights.
Building CodeWithIshwar 🚀
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Check out the latest article in my newsletter: From Code to Context: How AI Agents Are Changing Software Engineering linkedin.com/pulse/from-code… via @LinkedIn
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Check out the latest article in my newsletter: The AI Engineer’s Advantage: Why Problem-Solving Still Matters linkedin.com/pulse/ai-engine… via @LinkedIn
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Friday thought 💭
After years in software, AI is making me feel like a beginner again.
And that’s the beauty of tech — there’s always something new to learn.
Stay curious. Keep learning. Keep building. 🚀
#AI #SoftwareEngineering #CodeWithIshwar
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🚀 Meet the proposed HTTP QUERY method.
GET ❌ No request body
POST ✅ Request body, but implies modification
QUERY ✅ Request body + read-only semantics
Perfect for complex search, filtering, and analytics APIs.
#HTTP #RESTAPI #Backend #Programming #CodeWithIshwar
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🚀 Mastering SOLID Principles #5: Interface Segregation Principle (ISP)
Don't force classes to implement methods they don't need.
📖 Read the full article:
linkedin.com/pulse/mastering…
#SOLID #ISP #CleanCode #Java #SoftwareEngineering #CodeWithIshwar
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New Newsletter 🚀
Liskov Substitution Principle (LSP): When Inheritance Goes Wrong
A child class should be able to replace its parent without breaking the system.
📖 linkedin.com/pulse/mastering…
#SOLID #CleanCode #CodeWithIshwar
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🚀 Mastering SOLID Principles #3
Open/Closed Principle (OCP): Extending Software Without Breaking It
Learn how to design software that grows through extension rather than constant modification.
📖 linkedin.com/pulse/mastering…
#SOLID #CleanCode #SoftwareEngineering #CodeWithIshwar
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After 12+ years in software engineering, here's what matters most:
❌ Chasing every new framework
✅ Strong fundamentals
✅ Consistency
✅ Communication
✅ Public learning
✅ Adaptability
Tech changes.
Learning how to learn doesn't.
Comment Your Thought ? 👇
#CodeWithIshwar
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🤖 AI is probably in a hype bubble.
💡 AI is probably also a technological revolution.
Both can be true at the same time.
Many AI companies may disappear.
AI itself isn't going anywhere.
What do you think?
#AI #Tech #Innovation #LLM #CodeWithIshwar #SoftwareEngineering
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One Class.
One Responsibility.
One Reason to Change.
That's the essence of the Single Responsibility Principle (SRP).
📚 Week 1 of my SOLID Principles series is now live:
linkedin.com/pulse/solid-pri…
#SOLID #CleanCode #SoftwareEngineering
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Simple code > Clever code.
The best engineers don't make things complicated.
They make complex things simple.
#CodeWithIshwar #SoftwareEngineering #CleanCode #Programming #DeveloperLife 🚀
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Most microservices should be monoliths.
Most teams don't need distributed systems.
They need simpler systems.
Agree or disagree?
#SoftwareEngineering #SystemDesign
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Software engineering and software interviews test different skills.The best engineers master both.#CodeWithIshwar #SoftwareEngineering #InterviewPrep
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The best code:
Doesn't exist.
No bugs.
No maintenance.
No documentation.
No complexity.
Sometimes the most valuable commit is:
"Removed 2,000 lines of code."
#CodeWithIshwar #SoftwareEngineering 🚀
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This week's learning:
The internet has no shortage of tutorials.
The shortage is people willing to struggle through building something from scratch.
Agree or disagree?
#FridayLearning #CodeWithIshwar #BuildInPublic #Programming #SoftwareEngineering 🚀
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SOLID Principles make code scalable, maintainable, and easier to debug.
#codewithishwar #SOLID #CleanCode #SoftwareEngineering #Programming #Java #Backend #SystemDesign #Coding #Developers #TechTwitter #100DaysOfCode #Architecture #FullStackDeveloper
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Node.js is single-threaded, but concurrency issues still happen.
Race conditions and overlapping async operations are real challenges in scalable systems.
That’s why mutexes, transactions, and Redis locks still matter 🚀
#NodeJS #JavaScript #BackendDevelopment #codewithishwar
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Git won the popularity war.
But Mercurial powered massive engineering workflows at Meta Platforms and Mozilla.
🚀 New newsletter:
“Why Mercurial Still Matters in 2026”
linkedin.com/pulse/complete-…
#Mercurial #Git #SoftwareEngineering #CodeWithIshwar
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JavaScript is single-threaded.
So why do race conditions still exist? 👀
Because async JavaScript is all about execution order.
Event Loop → Promises → Microtasks → Race Conditions.
That’s the real game.
#CodeWithIshwar #javascript #nodejs #reactjs
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Most devs don’t struggle with JavaScript.
They struggle because they ignore what’s under the hood.
JS =
• Closures (memory)
• Event Loop (async)
• Prototypes (inheritance)
• Coercion (weird but powerful)
#JavaScript #WebDev #Programming #CodeWithIshwar
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