Senior Full-Stack Engineer & Systems Architect.
I am Abdullah Al Mamun — CEO & Founder of SubsDrop, Co-Founder of QuickMation, and Operator at Pro Trainer IT. I architect battle-hardened Node.js & Python backend infrastructure, multi-tier Redis caching, FinTech payment reconciliation (Stripe, SSLCommerz, EPS, MFS), Telegram & browser automation, and custom enterprise AI engines.
Live Platforms I Architected & Operate
Real companies with real domains, live traffic, active users, and integrated revenue models.
SubsDrop
Founder & Chief Executive Officer
Bangladesh’s #1 digital subscription marketplace offering 25+ premium tools (Canva Pro, ChatGPT Plus, Grammarly). Ecosystem includes media.subsdrop.com CDN, Live TV streaming (tv.subsdrop.com), and disposable email utility (temp.subsdrop.com) with automated credential delivery and multi-rail payments.
QuickMation
Co-Founder & Automation Architect
Enterprise AI & Automation Agency. Delivering custom AI chatbots (FB Messenger, Instagram DM, TikTok, Web), custom messaging systems, and standalone enterprise software. Built on custom proprietary automation engines to eliminate high SaaS vendor fees like n8n and Zapier.
Pro Trainer IT
Operator & Scaling Strategist
National IT Academy headquartered in Maharajpur, Chapainawabganj, scaling across 64 districts. Offers live cohorts in Full-Stack MERN, Python & Machine Learning, and DevOps. Features Next.js 16, S3 presigned video streaming, and student LMS.
MoneTrix
Architect & Creator
E-commerce & digital product delivery SaaS. Engineered with an isolated private MongoDB VPC (strict UFW IP whitelisting, 0.0.0.0 closed), hardened Payment Proxy gateway for local MFS, and Server-Side Tracking (sGTM via Stape + Meta CAPI + deterministic event_id deduplication) bypassing iOS ad-blockers with GA4 DataLayer sync.
Fresh From Production
Incident post-mortems, architecture decisions, and performance engineering — written from live systems, not theory.
Stop Sharing .env Files via Inboxes: How to Securely Share Environment Secrets with Envlink
Sending production secrets through Slack, WhatsApp, or Telegram is a critical security vulnerability. Here is how EnvLink encrypts and synchronizes environment variables in two commands.
Read Field Note Incident Recovery & SecuritySurviving a Zero-Day React2Shell Attack: How We Recovered Root & 100% CPU Under Peak Live Traffic
Out-of-band VNC rescue, terminating masked cryptominers, scrubbing persistent cronhooks, and containerizing production services with zero database loss.
Read Field Note Marketing Engineering & DataWhy Client-Side Pixels Are Dead: Engineering Server-Side Meta CAPI & sGTM with Event Deduplication
Bypassing Safari ITP, iOS 14.5 ATT restrictions, and ad-blockers on MoneTrix by routing e-commerce transactions through server containers with deterministic deduplication.
Read Field NoteHiring for a High-Impact Remote Role or Complex Technical Contract?
I collaborate asynchronously and synchronously with engineering teams worldwide. From architecting scalable microservices to building custom enterprise AI automation engines.