Md. Saniuzzaman Robin
Software Engineer • Next.js, NestJS & Angular Microservices
5+ years of experience building high-traffic, production-grade applications for millions of global users. Expert in Next.js, NestJS, MongoDB, Redis, and Angular with proven track record in microservices design, tech leadership, and competitive programming pedigree (ICPC Regional & 1,700+ solved).
5+
Years Experience
180M+
Global Scale
1,700+
Problems Solved
30%
Donation Growth
High-Throughput Geolocation & Prayer Times Microservices
Bitsmedia Pte Ltd. • 01/2024 – presentMigrated legacy Kotlin calculation engine to high-throughput NestJS microservices.
Integrated MaxMind GeoIP resolution and Google Maps APIs for fast location searches.
Architected backend caching utilizing Redis, MongoDB index optimization, and GCP Pub/Sub.
Serving 180M+ global users with stream-optimized feature architectures.
Engineering Impact & Deliveries
5+ years of delivering high-concurrency microservices, multi-tenant frontends, and automated testing frameworks.
Bitsmedia Pte Ltd.
01/2024 – presentSoftware Engineer (Full-Stack) • 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.
Key Technical Highlights
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.
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.
Core Technologies Applied
Featured Systems & Work
Scalable web architectures, microservices migrations, and multi-tenant platforms powering millions of users.
MuslimPro Geolocation & Prayer Times Microservices
Migrated core legacy Kotlin Prayer Times engine to NestJS, integrating MaxMind GeoIP and Google Maps APIs to deliver optimized location searches. Architected backend microservices utilizing Redis caching, MongoDB index optimization, and GCP Pub/Sub serving 180M+ global users.
Giving Donation Platform
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.
KONA Multi-Tenant E-Commerce Admin
Spearheaded an enterprise-grade multi-tenant e-commerce Admin Panel in Angular with dynamic multi-tenant bootstrap setups based on URL context, role-based access control (RBAC), and real-time WebSocket notifications.
IPEX AG Platform & Selenium Framework
Independently executed 60–70% of UI deliverables for IPEX AG (market leader in Swiss building damage management and digitization) in Angular. Built custom Selenium wrapper framework across 6+ web platforms and conducted JMeter load testing.
Skills & Algorithmic Depth
A dual foundation of production software architecture and intense competitive programming problem-solving.
Frontend Architecture
Production SSR/SSG/ISR with Next.js, multi-tenant Angular enterprise panels, and reactive RxJS/NgRx state pipelines.
Core Tooling & Paradigms
Competitive Programming & Algorithmic Mastery
1,700+ algorithmic problems solved • ICPC Dhaka Regional contestant • Problem Setter & Judge
Codeforces Specialist (Max Rating 1544), active on Codeforces, Codechef, LightOJ, and UVA.
Competed in 10+ national programming contests, representing Comilla University first team.
Authored, tested and judged algorithmic contest problems for university-level competitions.
Achieved top 10 rank among hundreds of competitive applicants during hiring selection.
1,700+
Total Problems
1544 Max
Codeforces Rating
10+ Regionals
Contests Competed
Specialist
Platform Ranks
Let's build something extraordinary.
Whether you need a high-scale microservices architect, full-stack lead, or want to discuss engineering challenges — reach out directly.