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shajibsikder/README.md

Backend Engineer | Full-Stack Systems Developer

I design and build scalable backend systems, REST APIs, and web applications with a focus on performance, reliability, and maintainability.

Currently handling system architecture at Weekmotion, optimizing core workflows to safely scale data pipelines, media delivery, and micro-transactions under high concurrency.

๐Ÿ“Š Reduced p95 API latency from 380ms to 220ms by restructuring MySQL composite indexes and implementing distributed Redis caching layers under peak traffic spikes.

โšก I focus on building simple, fast, and maintainable web systems that solve real-world problems.


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๐Ÿ› ๏ธ Favorite Tools & Technologies


PHP

Laravel

JavaScript

MySQL

REST API

NodeJS

Tailwind

Linux

Nginx

Docker

Redis

Git

GitHub

VSCode

๐Ÿ—๏ธ Production Systems & Backend Engineering

Selected production systems Iโ€™ve designed, developed, optimized, and deployed across web platforms, marketplaces, CMSs, and backend services.

Project Engineering Focus Link
๐ŸŽฌ Weekmotion Built a modular media backend with sequential chunk uploads and Redis-backed asynchronous queues, reducing web-server process blocking spikes from ~45% to <15%. Visit
๐Ÿงฉ Tabvora Built a privacy-first, local-first Manifest V3 Chrome extension with local storage, workspace grouping, and session crash recovery without telemetry. Install
๐Ÿ“ฐ Articla Developed an article monetization CMS with multi-layer caching, dynamic FAQ schema, and country-specific CPM payout rules. View
๐Ÿ’ผ Quidustry Developed a microjob marketplace with multi-gateway wallet architecture, automated proof verification, and referral management. Visit
๐Ÿ“ฐ Jagatbarta Optimized a multi-tenant CMS and increased Redis cache hit rate on core article endpoints from ~65% to ~92%, reducing database and disk I/O pressure. Visit
๐Ÿฅ All Doctors Implemented database transactions, row-level locking, and SELECT FOR UPDATE to prevent concurrent booking conflicts. Visit
๐Ÿ“ฐ Chattal Beat Engineered a news publishing CMS with multi-user editorial workflows, content management, and advertisement integration. Visit
๐Ÿซ Aiorpara School Developed a secure .edu.bd school portal with structured academic notice archives, multi-tier teacher authentication, and responsive media galleries. Visit
๐Ÿ“ฆ Microloop Developed a freelance marketplace with stateless token-based authentication, digital license validation, and scalable checkout workflows. View
๐Ÿ’ป ARCreative Optimized background jobs and heavy asset-processing workflows to reduce server-side execution overhead. Visit
๐Ÿ’ป DBN IT Optimized request handling and database access patterns, reducing unnecessary eager-loaded data and improving backend throughput. Visit
๐Ÿ“ฐ DBN News Implemented multi-tier caching to handle traffic spikes while reducing database connection pressure. Visit
๐Ÿ“ฐ Doyel24 Implemented relational data caching strategies to reduce database load on read-heavy real-time operations. Visit
๐Ÿ“ฐ Tribune Developed backend workflows optimized for low infrastructure overhead and efficient server-side content delivery. Visit
๐Ÿซ School Developed a responsive educational CMS with structured content management and optimized page delivery. Visit
๐Ÿค Service Partner Built a service marketplace with role-based access control, order workflows, and optimized backend request processing. Visit
๐Ÿ’ผ JobClickBD Built a localized micro-task marketplace with bKash/Nagad integration, proof validation, and referral workflows. Visit
๐Ÿซ Sadapur School Engineered a government-standard .edu.bd educational CMS with digital notice boards, role-based staff authentication, and optimized asset delivery. Visit
๐Ÿซ Aiorpara Developed an educational portal with academic notice management, teacher authentication, and responsive media galleries. Visit
๐Ÿ›ก๏ธ SecurityZone Built an e-commerce platform with order management, payment integration, and automated courier workflows. Visit
๐Ÿ“ฐ Lalmonir Kantho Developed a digital news platform with structured content publishing, category management, and responsive delivery. Visit

๐Ÿ“Š GitHub Profile Analytics

GitHub Analytics


๐Ÿ“‹ Architectural Focus

  • Performance Engineering: Advanced MySQL index design, raw query optimization, and profiling slow transactional pathways.
  • Asynchronous Task Processing: Decoupling high-overhead tasks, notification triggers, and metrics aggregation utilizing Redis queues.
  • System Architecture: Building clean, resilient RESTful API specifications with strict type handling and stateless architecture models.
  • Maintainable Infrastructures: Writing multi-stage production Docker configurations and orchestrating reliable Nginx reverse-proxies.
  • Data Consistency Optimization: Managing race conditions, deadlocks, and relational integrity layers in high-concurrency SaaS applications.

Pinned Loading

  1. weekmotion-platform weekmotion-platform Public

    Architectural blueprint and infrastructure design of the Weekmotion platform ecosystem. Showcasing async task queues, high-concurrency data flows, and performance-tuned backend pipelines optimized โ€ฆ

    Dockerfile 52 8

  2. jagatbarta-platform jagatbarta-platform Public

    Jagatbarta is a scalable multi-user news and content publishing platform with SEO-optimized articles, admin moderation, and a real-time earning system based on user engagement, traffic analytics, aโ€ฆ

    JavaScript 11 4

  3. tabvora tabvora Public

    A smart browser extension for managing tabs, sessions, website usage time, and browsing data with powerful restore, import, and export features.

    JavaScript 41 6