Dhaka, Bangladesh
scalable web apps, real-time systems & backend architecture
Md. Fardin Khan
Verified training in software engineering, AI agents, and modern web development.
Roles where I've owned backend architecture, real-time systems, and production delivery from monolith consolidation to social-platform APIs.
Feb 2026 — Present
PIN Sports
Architected backend services for a sports social platform — feeds, activity tracking, and notification delivery pipelines. Built referral and community engagement features. Collaborated with CEO and CTO on product strategy and technical roadmap.
Node.js NestJS MongoDB RabbitMQ REST APIs
May 2025 — Nov 2025
Spring Rain Pvt Ltd
Consolidated 5+ unstable microservices into a production monolith, cutting deployment incidents by ~30%. Implemented JWT/OAuth2 auth, HTTPS, and secure cookies for payments. Transaction-safe schema with audit logs and multi-layer caching reduced critical failures by ~25%.
Node.js PostgreSQL JWT OAuth2 Redis
Dec 2023 — Feb 2025
Rokomari
Built reusable coding framework that cut developer onboarding from 2–3 weeks to 1–2 weeks. Upgraded legacy systems improving throughput 2–3x on high-traffic endpoints. Led a remote team of 2–3, delivering 90–95% of sprints on time. Lowered API latency 20–30% via caching and algorithm optimization.
Node.js React MongoDB Redis AWS
Mar 2023 — Sep 2023
Across The Globe (ATG)
Resolved 40+ major bugs and led feature integrations with automated testing, decreasing regression bugs by ~25–30%. Enforced linting and code reviews across a team of 4–6. Deployed to production on AWS (S3, EC2).
Node.js Express AWS Jest Git
Production systems I've designed and shipped — distributed services, API platforms, and full-stack products.
Technologies I use daily to build secure, scalable applications — backend, frontend, and cloud.
React
Next.js
TypeScript
Tailwind CSS
Redux
Vite
Node.js
NestJS
Express.js
Prisma ORM
Python
RabbitMQ
MongoDB
PostgreSQL
MySQL
Docker
AWS
GCP
Git
GitLab
Figma
JiraFormal recognition from teams I've worked with.
Articles on performance, architecture, and lessons from building production software.
