Software Engineer @Societe Generale | Full Stack Dev with an eye for design
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Aditya Ojha • Peerlist

Learn System Design by Building ItMost developers learn system design by watching videos, reading blogs, or memorizing interview patterns. Real engineering doesn't work that way.SDSim is an interactive system design simulator that lets you design, test, and evolve distributed systems through hands-on practice. Instead of consuming architecture diagrams, you build them, break them, and understand why they succeed or fail.Whether you're preparing for system design interviews, learning distributed systems, or improving as a backend engineer, SDSim helps you develop intuition through experimentation—not memorization.<h3>What you can do</h3><ul><li>Solve interactive architecture puzzles that gradually increase in complexity, from URL shorteners and chat applications to large-scale distributed systems.</li><li>Design on a visual canvas using real infrastructure components like Load Balancers, CDNs, API Gateways, Caches, Databases, Queues, Workers, Object Storage, and Message Brokers.</li><li>Simulate real traffic to understand latency, throughput, bottlenecks, scalability, and high availability.</li><li>Experiment with architecture trade-offs by comparing multiple designs and seeing how different decisions affect system behavior.</li><li>Run chaos experiments to intentionally introduce failures and learn how resilient architectures recover.</li><li>Explore cloud-agnostic architectures or model systems inspired by AWS, Azure, and Google Cloud services.</li><li>Practice freely in Sandbox Mode or follow guided challenges designed to teach core system design principles step by step.</li><li>Save and share your designs with teammates, mentors, or interview partners.</li></ul><h3>Why SDSim?</h3>System design is difficult because most resources are passive. You can read about load balancers, caching, queues, and replication for hours without ever developing the intuition needed to design scalable systems.SDSim bridges that gap by turning system design into an interactive engineering experience. Build architectures. Test assumptions. Break your systems. Improve them. Repeat.Because the best way to learn distributed systems is to build distributed systems.

System-design-simulator

Stop spending more time managing tasks than building software. Sprint Magic is a markdown-based sprint planning platform that turns your GitHub workflow into a lightweight, production-ready planning system. Add a markdown file once, and everything stays synced automatically. Perfect for solo developers, indie hackers, AI-assisted coding, and anyone who wants the clarity of sprint planning without the overhead of traditional project management tools. Simple. Private. GitHub-native. Built for shipping.

SprintMagic

Psachno-OSS Finder is a beginner-friendly open source issue finder that helps developers discover good first issues from thousands of open source projects. Designed for both beginners and experienced developers, Psachno-OSS Finder makes it easy to start contributing to open source without confusion or guesswork.With Psachno-OSS Finder, you can find open source issues by programming language, difficulty level, and topic, allowing you to focus on issues that match your current skills and interests. Whether you are looking for your first open source contribution or want to consistently contribute to GitHub projects, this tool simplifies the entire discovery process.Filter GitHub issues for beginners by language such as JavaScript, Python, Java, or C++, and adjust difficulty levels to locate truly beginner-friendly issues or more advanced challenges. Explore open source topics like web development, backend systems, DevOps, AI, or developer tooling to contribute to projects that align with your goals.Psachno-OSS Finder is ideal for developers who want to:<ul><li>Find good first issues on GitHub</li><li>Start contributing to open source as a beginner</li><li>Build real-world development experience</li><li>Improve their portfolio with meaningful open source contributions</li></ul>By removing the friction of searching across repositories, Psachno-OSS Finder helps developers start contributing faster, learn by doing, and make real impact in the open source community.

Psachno-OSS Finder

Minimal professional portfolio with smooth animations.

My Portfolio 

A platform to address issues in the DSA Journey

Decode 

This project helps learners practice react on the go without worrying about fundamentals. It teaches every needed fundamentals in simplest terms during the practice sessions itself. How is it different? It focuses on clarity and hands on practice! Platform offers - - Thoughtfully written detailed guides. - Mental models - Mentor engine - 50 components to practice (more to come) - 4 major projects - A way to track your progress as well.

Aditya Ojha

Software Engineer @Societe Generale | Full Stack Dev with an eye for design Do Quick react practice :reactmastery.xyz