Md. Saniuzzaman Robin

Software Engineer with 5+ years of experience building high-traffic, production-grade applications for millions of global users. Expert in Next.js/NestJS/MongoDB/Redis and Angular. Proven track record in microservices design, tech leadership, performance optimization, and transforming complex business requirements into scalable architectures. Strong computer science foundation rooted in competitive programming.

1. Software Engineer (Full-Stack) · Bitsmedia Pte Ltd.

   01/2024 – present

   Dhaka, Bangladesh

   • Develop full-stack features using Next.js/NestJS for platforms serving millions of global users.
   • Architected backend microservices utilizing Redis caching, MongoDB index optimization, and GCP Pub/Sub.
   • Migrated core legacy Kotlin Prayer Times engine to NestJS, integrating MaxMind GeoIP and Google Maps APIs to deliver optimized, lightning-fast location searches; the service now handles 400+ req/s at peak for 2.5M daily users (8M+ during Ramadan).
   • Re-platformed the legacy WordPress "Giving" engine to a modern Next.js/WooCommerce framework with advanced SEO features, accelerating page load speeds and driving a 30% YoY increase in donations in 2025-2026.
   • Engineered an enterprise Admin Console from scratch in Next.js, creating reusable filters, tables, and auth modules that slashed feature development times for core product modules.
   • Revamped main app performance by shifting legacy JSON data-fetching architecture to modular, stream-optimized feature components.
   • Conduct code reviews, provide architecture feedbacks, and guide engineering peers.

   • Next.js
   • NestJS
   • Redis
   • MongoDB
   • GCP Pub/Sub
   • TypeScript
   • WooCommerce
   • SEO
   • Microservices
   • System Architecture
2. Software Engineer - L02 · KONA Software Lab Ltd.

   10/2022 – 01/2024

   Dhaka, Bangladesh

   • Stepped up to lead and manage a 4-member software development team.
   • Managed cross-functional coordination with Product Managers, Head of Department, Principal Architects, UI/UX designers, and QA to seamlessly scope, breakdown, and deliver quarterly feature roadmaps.
   • Owned and maintained internal frontend libraries (auth, themes, query layers, WebSockets), significantly improving cross-team UI development efficiency.
   • Spearheaded an enterprise-grade multi-tenant e-commerce Admin Panel in Angular.
   • Implemented complex reactive architectures for dynamic multi-tenant bootstrap setups based on URL context, role-based access control (RBAC), advanced inventory pipelines, reporting management, and real time notifications.

   • Angular
   • TypeScript
   • RxJS
   • Angular Material
   • WebSockets
   • RBAC
   • Multi-Tenancy
   • Team Leadership
   • Architecture
3. Software Engineer · SELISE Digital Platforms

   03/2021 – 10/2022

   Dhaka, Bangladesh

   • Acted as the primary driver for frontend development, independently executing 60-70% of all user interface deliverables for high-profile clients, primarily IPEX AG (market leader in Swiss building damage management and digitization).
   • Built interactive, highly responsive enterprise UI components in Angular and Angular Material, optimizing complex data tables, advanced calculation engines, dynamic reactive forms, and drag-and-drop workflow dashboards.
   • Built a custom Selenium wrapper framework to automate regression testing across 6+ distinct enterprise web platforms.
   • Conducted JMeter load testing to isolate system bottlenecks.

   • Angular
   • Angular Material
   • TypeScript
   • Reactive Forms
   • Selenium
   • JMeter
   • Test Automation
   • Performance Testing