Unthinkable Solutions

Most developers “learn React”… But still fail React interviews. Not because they don’t know React — But because they don’t know what actually gets asked. After analyzing multiple frontend interviews, here are Top 20 React Interview Questions you should master: Core Concepts 1. What is Virtual DOM & how does it work? 2. Difference between state vs props 3. What are hooks in React? 4. useState vs useReducer — when to use what? 5. What is useEffect & its lifecycle? Advanced Hooks & Patterns 6. How does useContext work internally? 7. How to avoid unnecessary re-renders? 8. What is memoization ( React.memo , useMemo, useCallback)? 9. Controlled vs uncontrolled components 10. How to manage global state in React? Performance & Optimization 11. How React batching works? 12. What causes re-renders in React? 13. Code splitting & lazy loading 14. Key prop — why it is important? Architecture & Real-world 15. How to structure a scalable React project? 16. How do you handle API calls & caching? 17. How to implement a multi-step form? 18. How to share data between components (without prop drilling)? Interview Traps 19. Difference between useEffect vs useLayoutEffect 20. Why React is called declarative? Most candidates fail not because of DSA… But because they can’t explain these clearly with examples. If you’re preparing for frontend roles — Start focusing on “why + how”, not just syntax. Follow Hrithik Garg 🚀 for more real interview insights.

Most developers think AI saves time by writing code faster. That’s not where the real speed is. The real advantage? Having a system. Here’s mine for backend work: • Idea → define the problem clearly • Scope → set boundaries before touching code • Generate → use AI for the first draft • Review → fix logic, not syntax • Test → hit edge cases hard • Deploy → ship with confidence AI doesn’t replace thinking. It compresses execution. Full breakdown 👇 https://lnkd.in/gXwyEsfg

🔐 𝗝𝘂𝘀𝘁 𝗽𝘂𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝗮 𝗻𝗲𝘄 𝗯𝗹𝗼𝗴 𝗼𝗻 𝘀𝗲𝗰𝘂𝗿𝗶𝗻𝗴 𝗣𝗿𝗶𝘃𝗮𝘁𝗲 𝗔𝗿𝗴𝗼𝗖𝗗 𝘄𝗶𝘁𝗵 𝗦𝗦𝗢 + 𝗥𝗕𝗔𝗖 𝘂𝘀𝗶𝗻𝗴 𝗔𝗪𝗦 𝗜𝗱𝗲𝗻𝘁𝗶𝘁𝘆 𝗖𝗲𝗻𝘁𝗲𝗿! As teams scale, managing access to your GitOps pipelines becomes a serious challenge. Relying on local users in ArgoCD is not only messy—but also risky. In this guide, I walk through how to integrate AWS Identity Center (AWS SSO) with a private ArgoCD setup and implement fine-grained RBAC for user management. Here’s what I covered 👇 🔹 Configuring SAML-based SSO between ArgoCD (Dex) and AWS Identity Center 🔹 Setting up group-based access control (Admin, Developer, Read-only) 🔹 Mapping AWS user attributes (email, groups) → ArgoCD RBAC policies 🔹 Writing real-world argocd-rbac-cm policies for controlled access 🔹 Enforcing secure login by disabling local ArgoCD users 🔹 Handling private cluster access via bastion + ingress 💡 Key takeaway: Instead of managing users inside ArgoCD, you can centralize authentication in AWS and let RBAC handle authorization—making your setup more secure, scalable, and production-ready. This is especially useful if you're running private clusters and want enterprise-grade access control without compromising developer experience. 📖 Read the full blog here: https://lnkd.in/gRRJ26Mx #DevOps #Kubernetes #ArgoCD #AWS #SSO #CloudSecurity #PlatformEngineering #RBAC #GitOps

❌ I failed my interview. And honestly, it was my fault. Not because I didn’t study. Not because I wasn’t capable. But because I made these mistakes 👇 • I focused more on knowing answers than understanding concepts • I solved problems… but couldn’t explain my thinking clearly • I underestimated basic questions (they went deep there) • I didn’t prepare stories for behavioral rounds • I panicked when I didn’t know one question — and it affected everything after That interview taught me something important: 👉 Interviews don’t test how much you know. 👉 They test how you think, communicate, and handle pressure. Now I’m fixing it: • Practicing explaining out loud • Revising fundamentals instead of just solving • Preparing real-life examples for behavioral questions • Mock interviews every week Failure didn’t reject me. It redirected me. Next one — I’ll be ready. 💪 Don't forget to like this post and follow Hrithik Garg 🚀 for more :) #interview #softwareengineer #frontend #learning #growth #jobsearch

✅ You’re not bad at frontend. You just didn’t go deep enough. Every developer reaches this phase: You watch tutorials, build projects, learn React… But still feel underconfident in interviews. That’s normal. Because real growth starts when: You stop copying and start understanding You stop rushing and start thinking You stop avoiding basics and start mastering them Frontend is not just about UI. It’s about logic, performance, and decisions. The difference between average and top candidates is simple: Consistency over time. One concept daily. One problem daily. One improvement daily. That’s it. Reminder: You don’t need to know everything. You just need to know more than yesterday. Don't forget to like this post and follow Hrithik Garg 🚀 for more :)

"Just integrate with our PACS — it should be straightforward." Famous last words in healthcare IT. Here's the reality of PACS integration that nobody warns you about: Every hospital runs a different vendor. Every vendor has a different version. Every version has a different quirk. Agfa. Fujifilm. Sectra. Intelerad. Change Healthcare. All "DICOM compliant." All completely different in practice. What actually varies: → DICOM tag support and custom private tags → Query/Retrieve behaviour (C-FIND, C-MOVE, C-GET) → DicomWeb support — or complete lack of it → Network configuration and port requirements → Worklist management and modality handshake "Standard" in healthcare means something very different than in SaaS. In SaaS, a REST API is a REST API. In healthcare, the standard is the starting point — then the real negotiation begins. Working on a production imaging platform, we built integrations that had to work across multiple PACS environments without custom code for every client. That abstraction layer was some of the hardest engineering work I've done. And the reward? PACS integration in under 30 minutes for new providers. This is Post 2 of a series on what building in healthcare IT actually taught me. #HealthcareIT #PACS #DICOM #MedicalImaging #HealthTech