Dishank Patel

🚀SDE Backend Intern @Sunking | JIIT ’26 CSE | Expert (1600+) @Codeforces | Guardian (2200+) @LeetCode | Spring Boot | Django | Blockchain Developer

[Dishank Patel @Dynamic_Dishank]

🚀 Day 99–100 — #Upskill_with_Dishank_100DaysChallenge

After months of being deeply involved in development during my internship, I finally got back to competitive programming — and it felt genuinely refreshing ⚡

Today's contest went well:
✅ Solved 5 problems in Div1 + Div2(Spectral Cup 2026 Round 2)
✅ Gained some rating 📈 (still recovering from the previous loss 😅)
✅ Worked through a solid mix of Constructive, Binary Search, Greedy, and Implementation problems
Sometimes stepping back into contests is the perfect reset — fast thinking, problem solving, and pure coding fun after weeks of backend development.
Felt really good to be back at it after a long time
#Java #SpringBoot #Microservices #SpringCloud #BackendDevelopment #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic

[Dishank Patel @Dynamic_Dishank]

🚀 Day 90–98 — #Upskill_with_Dishank_100DaysChallenge

This week I explored and built a Library Management System using Microservices Architecture with Java + Spring ecosystem.

Key learnings & implementations:
✅ Spring Boot + Spring Cloud microservices
✅ API Gateway + Eureka Service Discovery
✅ OpenFeign & WebClient for inter-service communication
✅ RabbitMQ + DLQ for event-driven workflows
✅ Event Sourcing with self-healing rebuild logic
✅ Resilience4j Circuit Breaker for fault tolerance
✅ Distributed tracing using Micrometer + Zipkin
✅ Load balancing with multiple service instances
✅ Dockerized deployment using Docker Compose
✅ Git-backed centralized configuration
✅ Global exception handling & consistent APIs
A strong hands-on experience in building scalable, resilient, and observable distributed systems.
#Java #SpringBoot #Microservices #SpringCloud #BackendDevelopment #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic

[Dishank Patel @Dynamic_Dishank]

🚀 Day 82–89 — #Upskill_with_Dishank_100DaysChallenge

Internship got hectic and I got a bit lazy 😅 — so posting cumulatively.

Spent this phase building and understanding a high-performance Leave Management System using Java & Spring Boot.

Key highlights:
✅ RBAC for Employees, Managers & Admins
✅ Smart leave validation (overlaps, advance notice, leave limits)
✅ Working-day calculations excluding weekends & holidays
✅ Hierarchical holiday resolution with @Redis → MySQL → External API fallback
✅ Transaction isolation using REQUIRES_NEW for resilient holiday sync
✅ Event-driven async processing for emails & bulk operations
✅ afterCommit() + @Async for faster API responses
✅ Fault-tolerant scheduling with retries & approval reminders
A solid learning experience around scalable backend design, caching, async workflows, and resilient system architecture.
#Java #SpringBoot #BackendDevelopment #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic

[Dishank Patel @Dynamic_Dishank]

@pratyush_no7 🤣

[Dishank Patel @Dynamic_Dishank]

@mipaltan Didn't expect this coming 🤣

[Dishank Patel @Dynamic_Dishank]

@mroczekdev @georgecurtiss hmm maybe

[Dishank Patel @Dynamic_Dishank]

@georgecurtiss @grok can you tell me how many AI agents were working for this rewrite and how much is approximate cost for tokens?

[George @georgecurtiss]

New acquisition method dropped:
> write niche software in zig
> after exponential growth, rewrite in rust to make it actually work

[Dishank Patel @Dynamic_Dishank]

@shashank_s57736 🤣

[Dishank Patel @Dynamic_Dishank]

@devdiary0x @DevanshuXi Even the optimised C++ code takes good amount of time and and space

[Dishank Patel @Dynamic_Dishank]

Studying for Contextualising Gender NPTEL on 19th… no clue what I’m doing.

Final sem CSE student memorising which philosopher said what while AI is taking over jobs 💀

Indian education system: just memorise 🤡

Any tips? 🙏
#NPTEL #Swayam #MOOC

[Dishank Patel @Dynamic_Dishank]

@AbhinavXJ Our university also wants 3 hard copies with physical presence. Wastage of money and resources..

[Dishank Patel @Dynamic_Dishank]

@course_creek Ya will be trying to handle such edge cases

[Dishank Patel @Dynamic_Dishank]

🚀Day 79–80 — #Upskill_with_Dishank_100DaysChallenge
✅Dev:
Started building a monolithic Leave Management System for learning purposes. This is a high-performance, event-driven backend service aimed at automating employee leave requests, approvals, and balance tracking.
Completed: • Data modelling • ER diagram design

✅DSA:
Solved today’s @LeetCode daily — an interesting problem involving:
• Greedy + brute-force string matching
(KMP could have been used for optimization, but it wasn’t necessary given the constraints.)

#Java #SpringBoot #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic

[Dishank Patel @Dynamic_Dishank]

@course_creek Currently focusing on monolithic architecture and getting hold of spring boot. Next project onwards will be learning the microservices fundamentals through project

[Dishank Patel @Dynamic_Dishank]

🚀 Day 81–82 — #Upskill_with_Dishank_100DaysChallenge

✅ Dev:
Set up a Docker container for the MySQL database and, using JPA, created entities aligned with the ER diagram designed earlier.
✅ DSA + CP:
Gave a @codechef contest after a long time— went really well! Solved 6/7 problems in Div 2
Hoping for a rank around 150 after plagiarism check 🤞

@LeetCode Daily:
Solved a hard problem based on Monotonic Stack (Robot collision pattern).
Concepts involved in contest:
• Greedy
• HashMap
• Binary Search (upper bound)
• Binary Search on Answer (monotonic predicate)
• Segment Tree (with a slight twist)
• Dynamic Programming (precomputing next indices for increasing/decreasing regions)
• Set + Sorting

#Java #SpringBoot #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic

[Dishank Patel @Dynamic_Dishank]

@samsonA535 Hi

[Dishank Patel @Dynamic_Dishank]

Day 77–78 — #Upskill_with_Dishank_100DaysChallenge

Last month was hectic, so I couldn’t post regularly. But I learned a lot — will be sharing past updates and catching up consistently from now on.

DSA:
Solved today’s LeetCode daily — a solid problem involving:
• Matrix rotation
• Set / HashMap usage
• Importance of handling overflow
Key takeaway:
Even when the compiler doesn’t throw an error, overflow can silently break logic — leading to tricky bugs(refer images for details).
Today’s question had multiple edge cases and was a great learning experience.

Dev:
Worked on Spring Boot — built Employee & Address CRUD APIs with proper exception handling.
Currently starting to learn Microservices concepts through this simpler project and will gradually move into advanced topics.

#Java #SpringBoot #SoftwareEngineering #100DaysOfCode #LearningInPublic #BuildInPublic