Ankit kotnala

Ever thought how apps like Swiggy handle millions of order requests every second? 🤔 If you’re preparing for System Design interviews, here’s the guide you need to prepare like a pro. 👇 Ace your System Design interviews with this doc from Bosscoder Academy 💪 Check their programs here: https://bit.ly/3MGzMAg You too can switch careers with their help. Get feedback, regular mock sessions along with: ✅ Structured curriculum in DSA, System Design, and Full stack development. ✅ To be a part of a Like-Minded Community and network for a lifetime. ✅ Personal Mentorship from industry experts.

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📢 𝐄𝐱𝐜𝐢𝐭𝐢𝐧𝐠 𝐀𝐧𝐧𝐨𝐮𝐧𝐜𝐞𝐦𝐞𝐧𝐭! 📢 I've been getting a lot of DMs about my journey from a Tier 3 college to landing offers from Amazon, Google, and Microsoft, as well as the transition from service-based companies to product-based roles. 🎯 To address all these questions, I recently did a podcast with Gaurav Agrawal, where we discussed everything in detail: 🔹 Backend Developer Roadmap 🔹 Cracking Offers from Top Tech Companies 🔹 Transitioning from Service-Based to Product-Based Companies If you've been curious about any of these topics or want to know how you can do the same, check out the podcast here. It covers all the insights and tips that have worked for me. Feel free to reach out if you have any questions after watching, but most of your queries should be answered in the video. Let's continue to support and grow together! 💪 #TechJourney #BackendDevelopment #CareerSwitch #Tier3ToTopTech #Podcast #MAANG #Amazon #Google #Microsoft

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LeetCode weekly -400 able to solve 3:- a.) iterate and check where you get E do count++ and take maxi from them and if you got L do count-- and return maxi b.) we create two events one for the start and one for the end .Sort the events by the day. through the events, maintaining a count of active meetings,Track the days with no active meetings and count them. c) use minheap and stack for this.... C gives 2 wa then it accepted Vivek Gupta Abhishek Saini #icpsc #summercamp #linkedin #community #reach #tweet #follow #comment #share #problemsolving #like #leetcode #codeforces #codechef #geeksforgeeks #tweet #codingninjas #leetcode2024 #codeforces #codechef

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Tinder, a widely-used dating app with millions of active users globally, employs a microservices framework to accommodate its vast user base. With over 500 backend services communicating with each other, Tinder required a centralized entry point to manage client requests efficiently.  To address this need, Tinder developed its own API Gateway, also known as Tinder Application Gateway (TAG), as existing solutions lacked the necessary features. Built on Spring Cloud Gateway, TAG facilitates easy modification of backend service routes, supports middleware functionalities such as bot detection and schema registry, and enables seamless request/response transformations.  Please read my latest blog on API Gateway to know more about it!

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JavaScript Interview Question on Scope - Lexical Environment - Scope Chain 🚀 1️⃣ What is Lexical Environment? Lexical environment is created whenever a new execution context is created. Lexical environment is the local memory + reference to its parent lexical environment. 2️⃣ What is Scope Chain? JavaScript engine tries to find the variable in its local memory if not found then it goes its parent lexical environment likewise it goes till it reaches global execution context lexical environment that is null. 3️⃣ What is Scope in JavaScript?: This way (like explained above) of finding the variable is called scope chain. This defines the variable is in scope or not. I have given lots of output based questions on above JS concepts and most valuable explanation Akshay Saini 🚀 in the below e-book, please have a look at once. 𝐄-B𝐨𝐨𝐤 𝐋𝐢𝐧𝐤: https://lnkd.in/gkwuXbxd JavaScript for file 🙏 function exampleFun() {  console.log(globalVar); //Output: I'm a global variable!  //Local variable  var localVariable = "I'm a local variable!";  console.log(localVariable); //Output: I'm a local variable! } exampleFun(); console.log(globalVar); //Output: I'm a global variable! console.log(localVar); //ReferenceError: localVar is not defined Keep learning and keep sharing your knowledge 🙏

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This weekend I tried the problem statement mentioned by Chirag Goel in his latest #Chakde_Frontend_Interview series,  #EP_10. The problem statement was to create a list of accordions and the requirements were as follows: 👉 Given an array of objects of some Question/Answer, create a list of accordions. 👉 Only 1 accordion should be opened at a time. 👉 There needs to be a checkmark at each header. 👉 On clicking the checkmark, the accordion should not expand. 👉 There needs to be a submit button which will only be enabled if all the check boxes are checked. Check my demo video below. Though I enjoyed solving the whole problem, I found the 4th and 5th points interesting to implement. For 4th, we had to stop the propagation from bubbling up. Akshay Saini 🚀 has covered this concept v beautifully in his Event Bubbling and Capturing video. For 5th, I wrote the same logic using some, every and reduce functions to strengthen my concepts. Overall, I enjoyed the whole hands-on problem-solving. You can check my code in the comment section. Would appreciate any feedback :) #frontend #javascript #react #machine_coding

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Let's talk about those #LinkedIn messages we all get. You know the ones. "Hi [FIRSTNAME], we have an exciting SDE3 position!" Like we're all supposed to know what these engineering levels mean, as if SDE3 is some universal truth that transcends companies and cultures, rather than arbitrary HR jargon. But more on that corporate numbering nonsense later. 🤖 It's like the modern dating scene out there. These companies are the equivalent of someone sending "hey" at 2 AM on #Tinder. Meanwhile, the tech giants? They craft thoughtful first messages that make it feel personal. When Facebook London contacted me by email a few years ago, they gave real context about their engineering culture and focused on hiring for general skills, not just filling a position. They made it clear that specific roles could be discussed later, as they had numerous opportunities available. They understand that engineers don't join positions - they join visions. Google London? They picked up the phone and called. Notice something? No LinkedIn in sight. These companies treat recruitment like a proper courtship, not a numbers game. 💌 So while our LinkedIn inboxes are flooded with these wannabe tech giants treating engineers like IKEA furniture parts - "Oh, we need one SDE3 to complete our engineering shelf!" - they're missing the point entirely. Engineers are not standardized parts you can just plug and play. We're more like that friend who has weird hobbies but somehow makes them work - you might not understand the appeal of sock matching consultancy, but you respect the passion. 🎨 The truth is, great engineers don't just want jobs - they want adventures. They want to be part of something meaningful, even if that meaning is just "we make really cool stuff that people love." When your recruitment message reads like it was written by #ChatGPT's boring corporate cousin who never got invited to parties, you know you've fucked up somewhere along the way. 🤦‍♂️ So to all those companies out there: stop treating engineering levels like Pokémon evolution stages. Start treating engineers like the complex, creative, caffeine-powered beings they are. Because right now, your recruitment game is about as appealing as a "u up?" message at midnight. 💔 And because someone had to say it: At the beginning, who decided that engineering levels should sound like robot designations from a low-budget sci-fi movie? Let's rename them to mathematical constants. Level φ (phi) for entry roles, as you begin your golden journey. Level e for mid-level, as you're experiencing exponential growth. And Level π for senior positions, because by then you've come full circle and realized how much you still don't know. At least that would show some creativity from HR! But until then... 🔢 #WhyIsMyTitleANumber #MySDELevelIsImaginary #LinkedInIsTheTinderOfJobs #RecruitersSwipingLeftOnCreativity #MyTitleNeedsMoreEmojis #TechCulture #TechIndustry #TechRecruitment #TechJobs #SoftwareEngineering #LinkedInFails

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In my short SWE career, switching to NeoVim from traditional IDE's has been the most productive and life changing experience. Vim motions combined with the vast plugin system of NeoVim surely supercharges my daily productivity. Now I find it cumbersome to use anything other than vim motion and the first thing I look for in any online IDE is vim keybindings support. The VIM keybinding surely has a steeper learning curve compared to any other productivity tools. It's like the first season of the Sitcom The Office. Once you get through the first season, you'll never regret your decision of holding on. I look forward to write and share some vim/neovim tips paired with how to get started with these for anyone interested. #vim #neovim #productivity #softwareengineering

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If you're a front-end developer and want to pursue companies like #google ?where DSA is a crucial skill and you never solved serious DSA in your career ? not understanding where to get started ? Here is my advice. 1. Goto MDN documentation, learn about set, map and array functions to splice, slice, reduce, fill and few other, same goes for strings. 2. Goto leetcode -> create an account -> Problems section 3. Select Array filter with easy difficulty problem. Most easy problems will look difficult for you. But, hang on, try to solve them by Brute force first. 4. After you solve about 30 easy array problems, your confidence will reach a state where you can solve any easy array problems. 5. That is when you switch to strings, followed by linked list and trees. 6. Without touch basing easy problems of LL and Trees, don't attempt medium difficulty problems of array and strings. As many problems there involve recursion, DFS, BFS etc, which will be hard to solve without knowing trees. By the time you reach Step 6, you will figure out your own strategy to proceed further. Let me know what your DSA strategy is in the comments section. Follow me and I will help you to clear your frontend developer interview :Vasanth Bhat

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The episode 11 of #ThisIsTechTalks is live on our channel, we talked about learning #springboot in 2024 with none other than Mr. SpringBoot Josh Long Watch the episode to learn how to get started with our co-hosts Santosh Yadav and Sonu Kapoor Link in the first comment: #spring #java

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99 ₹ - Javascript for Life 🙏 | Complete Frontend guide E-book - Independence Month Offer I have created an E-Book in a well structured way which will help to answer and write logic to these questions without any problems. J𝐮𝐬𝐭 𝐚𝐭 99𝐫𝐬, 𝐠𝐞𝐭 𝐞-𝐛𝐨𝐨𝐤 𝐰𝐢𝐭𝐡 (detailed 110 questions & answers = 55 JavaScript + 50 React.js most asked Questions & Answers, 50+ frequently asked interview questions, 25+ Output based questions & answers, 20+ Coding Questions & answers, more than 10 Machine coding questions with tips, DSA strategies, LinkedIn Tips and Tricks, Git commonly used commands) JavaScript for life 🙏 https://lnkd.in/ghbyHvmz Cheers, Adarsha 🚀

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As a senior/staff SWE, all you do is - Learn - Teach You learn new things, upskill yourself throughout your career You teach the learnings to help others grow. You need to do both though, just doung one will hamper your growth eventually #softwareengineering

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Your Uber ride is possible because of these kinds of services working together: 📍Google Maps - Locates the place 💰 Paytm - Helps with payment 🔥 Firebase- sends the notification 📩 Gupshup - Send SMS confirmation 📤 Amazon SES - Sends the bill to your email This orchestration and communication between the systems is possible because of APIs or "Application Programming Interfaces" ⚡️ APIs are just a mechanism by which one tech system can talk to another. APIs are helpful in multiple avenues: 👉🏽 Extending use cases of your product: Google Maps and Uber work together to help you locate your cab. 👉🏽 Communication between internal systems: Frontend and Backend. 👉🏽 Providing API as a service: Stripe offers payment gateway API as a service. OpenAI offers LLM API as a service. How do APIs work? One system sends a request to the API of another system and in return, the API sends the response. The request has a type and a payload: 👉🏽 Type signifies what should the API do: Add something (POST), Delete something (DELETE), Update something (PUT), or Fetch something (GET). 👉🏽 The payload contains any important information that the API needs. 👉🏽 Some APIs also have headers, which contain the authentication information, so that only the right systems can access the APIs. This request is sent to the end-point of the API: a place on the internet where this API lives. [it's generally a url]. When API receives the request, it takes some action, generates the response, and sends back a response. A response along with the returned data also contains a status code, which signifies if the API request was fulfilled or not. That's scratching the surface of the API world. Original Post Credits: Ankit Shukla Khushal Jhalani #productmanagement #API

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Hi everyone,   🚀 Decoding Kafka — The Mystery 🚀   💡 Ever wondered how real-time tracking works on apps like Zomato or Uber? Imagine placing an order on Zomato and seeing the live location of your delivery agent, updating every few seconds. Or booking a cab on Uber and having various services like fare adjustments and analytics running in real-time. This seamless experience is powered by Kafka, ensuring that high volumes of data are processed efficiently and in real-time.   🔍 In my latest blog, I dive into: What Kafka is and where it’s being used. How Kafka integrates into our daily lives. Learning Kafka with real-world problem statements and examples. Kafka's robust architecture. Understanding Consumer Groups and Kafka's dual role as a Queue and Pub/Sub system.   🔗 Ready to dive deeper? Check out my full blog here: https://lnkd.in/geTGEKBh   Happy learning! 😊   #Kafka #DataStreaming #RealTimeData #TechBlog #SoftwareEngineering #TechInnovation #LearningJourney 

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India's developer community to surpass United States by 2027 - 𝐆𝐢𝐭𝐇𝐮𝐛 𝐂𝐄𝐎 In 2021, there were 5.8 million developers on GitHub In 2024, this count has increased to 15.4 million 3X growth in 3 years 😍 𝐖𝐡𝐚𝐭 𝐝𝐨𝐞𝐬 𝐭𝐡𝐢𝐬 𝐦𝐞𝐚𝐧 𝐭𝐨 𝐄𝐦𝐩𝐥𝐨𝐲𝐞𝐫𝐬? - Access to a larger, highly skilled, and cost-effective talent pool - Need to offer competitive salary, opportunities for growth, and remote or hybrid work options to attract and retain Indian developers. - A larger community of developers means more innovation, open-source contributions, and collaborative problem-solving. - Shift from outsourcing to borderless teams(distributed teams) - Need to adapt their operational and cultural approaches to work effectively 📢 𝐇𝐨𝐰 𝐢𝐬 𝐲𝐨𝐮𝐫 𝐜𝐨𝐦𝐩𝐚𝐧𝐲 𝐩𝐫𝐞𝐩𝐚𝐫𝐢𝐧𝐠 𝐟𝐨𝐫 𝐭𝐡𝐢𝐬 𝐬𝐡𝐢𝐟𝐭? 𝐂𝐨𝐦𝐦𝐞𝐧𝐭 𝐛𝐞𝐥𝐨𝐰! #IndiaTechTalent #DeveloperGrowth #RemoteWork #FutureOfWork #TechHiring

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Save this post and thank me later !! In most #frontend #interviews I will ask how #javascript works behind the scenes ? The most common answer is from Akshay Saini's video where they say execution context is created and later that will be removed from memory and new execution context will be created etc. Then I ask a simple question "Will #javascript be converted into ByteCode ? during execution ? " most don't answer that. I have got this image from #internet to explain how JS works behind the scenes. When JavaScript code runs, it's parsed into an Abstract Syntax Tree (AST), then interpreted into bytecode or machine code. A profiler monitors code execution, guiding the optimizing compiler (JIT) to generate highly optimized machine code using bytecode and profiling data. Incorrect assumptions may lead to "Deoptimize" phases. The JS Engine optimizes "hot functions" and utilizes techniques like inline caching. It manages the call stack to track executing functions and allocates memory using the memory heap. The garbage collector plays a vital role in reclaiming memory from unused objects. Can you comment the Interpreter used by Google chrome ? Follow me and I will help you to master frontend development: Vasanth Bhat #javascript #execution #interview #question

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Sharing the list of FREE resources I used to transition from TCS to Intuit 🚀 I have been asked many times about the resources I referred to for preparation. So, here it is.👇 𝐅𝐨𝐫 𝐃𝐒𝐀 👉 I used GeeksforGeeks to consistently solve problems everyday for 2-4 hours after work hours. 👉 Applying filters on the topic and top companies list helped. 👉 I did not have takeUforward during my time, but you have Raj Vikramaditya. So, you can refer to Striver’s SDE sheet for preparation. 𝐅𝐨𝐫 𝐒𝐲𝐬𝐭𝐞𝐦 𝐃𝐞𝐬𝐢𝐠𝐧 👉 System Design Interview book by Alex Xu 👉 Gaurav Sen’s playlist 𝐅𝐨𝐫 𝐉𝐚𝐯𝐚, 𝐒𝐩𝐫𝐢𝐧𝐠𝐁𝐨𝐨𝐭 👉 Wanna read? - javatpoint.com 👉 Binge watcher? - Navin Reddy’s Youtube channel - TELUSKO 𝐅𝐨𝐫 𝐜𝐨𝐫𝐞 𝐬𝐮𝐛𝐣𝐞𝐜𝐭𝐬 Sometimes, companies also ask questions on OOPS, SQL, OS and Networking. I had watched Ravindrababu Ravula sir’s videos during my college days and prepared notes. So, I used to revise them before every interview. And last but the most important thing - keep going. Stay consistent.. Lage raho, manzil mil hi jaegi.. 🙌 Do follow Akanksha Buchke for hirings, referrals, interview preparation content and please mention in the comments any other resource you found helpful. PS~ Join this group for all tech content (DSA, coding, System Design - interview preparation and resources) - https://lnkd.in/gUw9-G_u #interviewresources #interviewexperience #interviewpreparation #interviewtips #softwareengineer #softwaredeveloper #referral #intuit #jobswitch #networking #connections #reach #linkedin #linkedincommunity #akankshabuchke

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Hilt Internals: Do you know Hilt uses bytecode transformation to add dependency injection code in Android classes? Bytecode transformation modifies the existing code. For example, if we have a class Foo, bytecode transformation can update its properties, change its superclass, etc. While, annotation processing generates new classes; it cannot modify the existing classes. But why does Hilt need bytecode transformation? Android framework classes like Activity cannot be instantiated directly; they can only be instantiated by the Android framework. Therefore, Dagger cannot create instances of them and cannot inject dependencies into them. For injecting the dependencies, we have to write injection code manually. Hilt solves that problem by adding the boilerplate injection code into Android framework classes using bytecode transformation. Hilt uses the ASM library for bytecode transformation. https://lnkd.in/gBbWh36U #android #hilt #kotlin #bytecode #androiddeveloper

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Recently, a job opening for an SDE 1 position at Plum was announced on Go Careers. Following this, the Founder of Plum shared a LinkedIn post revealing that over 8,000 applications were submitted for the role. This underscores the intense competition for just one job opening. 📈 You might wonder, "𝐖𝐡𝐚𝐭 𝐜𝐚𝐧 𝐈 𝐝𝐨 𝐭𝐨 𝐬𝐭𝐚𝐧𝐝 𝐨𝐮𝐭 𝐟𝐫𝐨𝐦 𝐭𝐡𝐞 𝐜𝐫𝐨𝐰𝐝?" There is abundant advice available on platforms like YouTube and LinkedIn, covering topics such as skills enhancement, resume improvement, and networking. 🎓💼 However, one critical factor often overlooked is the timing of your application. Being one of the first to apply can significantly increase your chances of receiving a callback, as positions are quickly filled and no longer available to later applicants. ⏰ To give you a competitive edge, we've created the Go Careers Telegram Messenger Premium Bot, which notifies subscribers about job openings much earlier than non-subscribers. By being one step ahead, you increase your chances of success. 🚀 𝐁𝐨𝐭: https://lnkd.in/gmUZaaTQ 𝐂𝐡𝐚𝐧𝐧𝐞𝐥: t.me/gocareers So, subscribe now and stay ahead of the competition! ✨🏆 For your reference here's Plum's Founder Post: https://lnkd.in/g5-5S56n

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