Day 15: DSA Live Coding + Researching My Next Backend Project | LeetCode, CSES & System Design

Day 15: DSA Live Coding + Researching My Next Backend Project | LeetCode, CSES & System Design LinkedIn:   / aman-meenia-b32a00206   X: https://x.com/meenia_aman LeetCode: https://leetcode.com/u/AmanMeenia0001/ GitHub: https://github.com/meenia-aman Welcome to Day 15 of my Low Level Design, System Design & DSA journey! After spending the last few sessions designing and implementing real-world systems using Java, today we're switching gears to practice DSA and research an upcoming backend engineering project. I'm planning to build a production-oriented backend system from scratch, focusing on real-world engineering challenges, scalability, reliability, and distributed systems concepts. The goal is simple: Learn → Research → Design → Build → Improve → Stay Consistent. ━━━━━━━━━━━━━━━━━━━━━━ DAY 15 — DSA PRACTICE + BACKEND PROJECT RESEARCH ━━━━━━━━━━━━━━━━━━━━━━ PART 1 — LEETCODE & CSES PROBLEM SOLVING In the first part of today's livestream, we'll practice Data Structures and Algorithms problems from LeetCode and CSES. Topics we'll focus on: • Solving LeetCode problems and CSES challenges • Understanding problem statements and constraints • Identifying optimal algorithms and data structures • Practicing Dynamic Programming and other DSA patterns • Discussing brute-force and optimized approaches • Analyzing time and space complexity • Debugging solutions and handling edge cases • Improving problem-solving skills for coding interviews ━━━━━━━━━━━━━━━━━━━━━━ PART 2 — RESEARCHING MY NEXT BACKEND PROJECT ━━━━━━━━━━━━━━━━━━━━━━ I'm planning to start building a production-oriented Webhook Delivery Platform that explores real-world backend engineering and distributed systems challenges. Before jumping into implementation, I want to understand the problem, research existing solutions, and explore different architectural approaches. Topics we'll explore: • Understanding the project idea and real-world use cases • Researching existing platforms and similar open-source projects • Identifying functional and non-functional requirements • Understanding webhook delivery and event-driven architectures • Exploring message queues and background job processing • Understanding retry mechanisms and exponential backoff • Discussing at-least-once delivery and idempotency • Handling failures, duplicate events, and unavailable endpoints • Exploring PostgreSQL, Redis, and other backend technologies • Understanding scalability, reliability, and fault tolerance • Planning the initial system architecture and MVP The goal is not just to build another CRUD application but to understand how real-world backend systems handle reliability, failures, concurrency, and scale. ━━━━━━━━━━━━━━━━━━━━━━ WHY THIS SERIES? ━━━━━━━━━━━━━━━━━━━━━━ I'm documenting my software engineering learning journey through consistent live coding and practical problem-solving sessions. The series focuses on: • Data Structures & Algorithms (DSA) • Low Level Design (LLD) • High Level System Design (HLD) • Backend Development • Java, Python, and Software Engineering • Distributed Systems and Scalable Architecture • Real-world Projects and Design Patterns • Software Engineering Interview Preparation This is Day 15 of the journey! Today is about balancing algorithmic problem-solving with research and preparation for a larger backend engineering project. Learn by solving problems, understanding systems, building projects, and improving one day at a time. If you're preparing for Software Engineering interviews, learning backend development, or interested in System Design and Distributed Systems, join the live stream and learn along! #DSA #LeetCode #CSES #BackendDevelopment #SystemDesign #DistributedSystems #Python #Java #FastAPI #PostgreSQL #Redis #Webhooks #SoftwareEngineering #CodingInterview #LiveCoding #BuildInPublic #StudyWithMe