DesignGurus @sysdesigngurus
The ultimate resource to help software engineer prepare for the system design and coding interviews. designgurus.io United States Joined February 2017-
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Learn these 10 myths about system design to get 𝐚𝐡𝐞𝐚𝐝 𝐨𝐟 𝟖𝟎% 𝐨𝐟 𝐜𝐚𝐧𝐝𝐢𝐝𝐚𝐭𝐞𝐬. 🔹We assume more caching layers = more performance (it can add complexity & stale data). 🔹We assume availability = reliability (a service can be “up” but serving garbage). 🔹We…
I read 100+ system design guides, postmortems, and interview rubrics this month. Here’s what actually moves you from “𝐈 𝐤𝐢𝐧𝐝 𝐨𝐟 𝐠𝐞𝐭 𝐢𝐭” to “𝐈 𝐜𝐚𝐧 𝐝𝐞𝐬𝐢𝐠𝐧 𝐢𝐭.” 𝐖𝐡𝐚𝐭 𝐭𝐡𝐞 𝐛𝐞𝐬𝐭 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐬 𝐦𝐚𝐬𝐭𝐞𝐫 𝐟𝐢𝐫𝐬𝐭: 🔹Mental models → CAP,…
𝐓𝐨𝐩 𝟏𝟎 𝐅𝐫𝐞𝐞 𝐑𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 𝐭𝐨 𝐋𝐞𝐚𝐫𝐧 𝐒𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲 Scaling isn’t just a tech challenge—it’s a promise to your users that the product will perform when it matters. If you’re leveling up your system design game, bookmark these ten must‑reads and share…
𝐓𝐨𝐩 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐃𝐞𝐬𝐢𝐠𝐧 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬 ➡ 1. API Gateway Pattern: Centralizes external access to your microservices, simplifying communication and providing a single entry point for client requests. ➡ 2. Backends for Frontends Pattern (BFF): Creates…
Designing software systems is a balancing act. You can’t optimize one dimension without impacting another. Here are the top 15 trade-offs you should master before your next system design interview: → 𝗦𝘁𝗿𝗼𝗻𝗴 𝘃𝘀 𝗘𝘃𝗲𝗻𝘁𝘂𝗮𝗹 𝗖𝗼𝗻𝘀𝗶𝘀𝘁𝗲𝗻𝗰𝘆:…
𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture: 1. 𝐂𝐥𝐢𝐞𝐧𝐭 These are the…
𝗡𝗼 𝗳𝗿𝗲𝗲 𝗹𝘂𝗻𝗰𝗵 𝗶𝗻 𝘀𝘆𝘀𝘁𝗲𝗺 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗲𝘃𝗲𝗿𝘆 𝗱𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗶𝘀 𝗮 𝘁𝗿𝗮𝗱𝗲-𝗼𝗳𝗳. Designing software systems is a balancing act. You can’t optimize one dimension without impacting another. Here are the top 15 trade-offs you should master before your…
𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗠𝗮𝘀𝘁𝗲𝗿 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲: 𝗢𝗻𝗲 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲 𝘁𝗼 𝗥𝘂𝗹𝗲 𝗧𝗵𝗲𝗺 𝗔𝗹𝗹. I've used this template to discuss many #systemdesign problems in #interviews. 𝗔𝗣𝗜 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 An API Gateway (AG) is a server that acts as a single point of…
𝐇𝐨𝐰 𝐭𝐨 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞? Here are some of the top ways to improve database performance: 1. Indexing Create the right indexes based on query patterns to speed up data retrieval. 2. Materialized Views Store pre-computed query results…
𝗔𝗖𝗜𝗗 𝘃𝘀. 𝗕𝗔𝗦𝗘 – Trade-Offs in S𝘆𝘀𝘁𝗲𝗺 D𝗲𝘀𝗶𝗴𝗻 I𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄. Too many candidates memorize the terms. But few truly know when to choose one over the other. In high-scale system design interviews, this trade-off reveals your architectural maturity.…
𝐇𝐨𝐰 𝐭𝐨 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞? Here are some of the top ways to improve database performance: 1. Indexing Create the right indexes based on query patterns to speed up data retrieval. 2. Materialized Views Store pre-computed query results…
𝐖𝐡𝐚𝐭 𝐢𝐬 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞? Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture: 1. 𝐂𝐥𝐢𝐞𝐧𝐭 These are the end-users who…
𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 𝗠𝗮𝘀𝘁𝗲𝗿 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲: 𝗢𝗻𝗲 𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲 𝘁𝗼 𝗥𝘂𝗹𝗲 𝗧𝗵𝗲𝗺 𝗔𝗹𝗹. I've used this template to discuss many #systemdesign questions. ✨ 𝐕𝐢𝐝𝐞𝐨 𝐋𝐞𝐬𝐬𝐨𝐧: lnkd.in/gg8_9Ta7 ✨ 𝗔𝗣𝗜 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 An API Gateway (AG)…
𝐇𝐨𝐰 𝘁𝗼 𝘀𝗲𝗹𝗲𝗰𝘁 𝗗𝗲𝘀𝗶𝗴𝗻 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝐬? Choosing the correct design pattern in software engineering is critical to practical problem-solving. This post will try to simplify the process, helping you decide between patterns based on specific needs. To select a…
𝐓𝐨𝐩 𝐓𝐞𝐜𝐡 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐏𝐫𝐞𝐩𝐚𝐫𝐚𝐭𝐢𝐨𝐧 𝐫𝐞𝐬𝐨𝐮𝐫𝐜𝐞𝐬 ➡ 𝐂𝐨𝐝𝐢𝐧𝐠 𝐚𝐧𝐝 𝐃𝐒𝐀 1. Coding Patterns: lnkd.in/g6ApdjVW 2. Advanced Coding Patterns: lnkd.in/gnd2CVm9 2. DSA: lnkd.in/gZiUVVDa 3. Dynamic Programming:…
𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐌𝐢𝐜𝐫𝐨𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Microservices architecture breaks down applications into smaller, independent services. Here's a rundown of the 𝟏𝟎 𝐤𝐞𝐲 𝐜𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 in this architecture: 1. 𝐂𝐥𝐢𝐞𝐧𝐭 These are the…
𝐓𝐨𝐩 𝐌𝐮𝐬𝐭-𝐊𝐧𝐨𝐰 𝐆𝐫𝐚𝐩𝐡 𝐀𝐥𝐠𝐨𝐫𝐢𝐭𝐡𝐦𝐬 ◾Depth First Search (DFS): Explores as far as possible along a branch before backtracking. Practical use: Finding connected components in a graph. ◾Breadth First Search (BFS): Explores all neighbors at the present…
𝟓 𝐒𝐲𝐬𝐭𝐞𝐦 𝐃𝐞𝐬𝐢𝐠𝐧 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐃𝐨’𝐬 𝐚𝐧𝐝 𝐃𝐨𝐧’𝐭𝐬. System design interviews are tough to crack. I’ve been in those interview rooms where your mind is racing, and you’re staring at a whiteboard trying to design a system that works flawlessly. It’s…
𝐓𝐨𝐩 𝐌𝐮𝐬𝐭-𝐊𝐧𝐨𝐰 𝐆𝐫𝐚𝐩𝐡 𝐀𝐥𝐠𝐨𝐫𝐢𝐭𝐡𝐦𝐬 ◾Depth First Search (DFS): Explores as far as possible along a branch before backtracking. Practical use: Finding connected components in a graph. ◾Breadth First Search (BFS): Explores all neighbors at the present…
𝐇𝐨𝐰 𝐭𝐨 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞? Here are the top ways to improve database performance: 1. Indexing Create the right indexes based on query patterns to speed up data retrieval. 2. Materialized Views Store pre-computed query results for quick…
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