
I strongly believe that true mastery comes from building a rock-solid foundation. That's why I focus deeply on the fundamentals.





Writing14
All articlesEngineering Roadmap: Why 'Exactly Once' Delivery Is Mostly a Lie
A complete engineering guide on why exactly-once delivery is mathematically impossible at the network level, and how to build effectively-once architectures in production using idempotency, transactional outbox, and inbox patterns.
How Cursor Pagination Actually Works Under the Hood
An in-depth technical guide on database execution plans, B-Tree index range scans, the O(N) bottleneck of deep offsets, and production-grade opaque cursor architecture.
How Database Connection Pools Actually Work Under the Hood (A Deep Dive)
A complete deep dive guide on how database connection pools work, why systems crash under heavy traffic, and how to design production scale connection management architectures.
Distributed Locks Under the Hood: Redlock, Fencing Tokens and the Split-Brain Problem
A deep architectural dive into why standard Redis locks fail in distributed systems, covering lease expiries, paused processes, and how database-level fencing tokens guarantee absolute correctness.
OOP vs Functional Programming Architectural Trade-offs
An in-depth, under-the-hood analysis of Object-Oriented Programming vs Functional Programming for resolving state management crises and making scalable architectural decisions.
Projects6
All projectsCST Club Management System
CommercialA real-time, role-based platform that runs every part of a student tech club: members, events, workshops, assessments and payments.
Student Clearance Management
CommercialA centralized, role-based system that automates student clearance with real-time status tracking and department-wise control.
2TalkLink
LiveA SaaS platform for creating e-cards, with full CMS capabilities, Stripe subscriptions and real-time data management.
Safe House
CommercialA real estate platform with dynamic property listings, interactive maps and Zustand-based state management.
Experience
Full experience
Learn With SumitResearch and Development Executive
I focus on exploring and analyzing modern software development practices, programming languages, and emerging technologies. My work involves researching deep technical concepts, building experimental projects, and translating complex ideas into accessible learning materials that help developers grow with clarity and confidence.
Support Engineer, React Accelerator Course
Worked as a dedicated Support Engineer for the React Accelerator Course, a 14-week intensive program covering modern React and Next.js. I assisted learners through every module by resolving technical issues, evaluating assignments, and maintaining support resources.
CST Club, Dhaka Polytechnic InstitutePresident
Led the CST Club at Dhaka Polytechnic Institute, running club initiatives, events, and collaborative projects to improve the learning environment for Computer Science students.
Dhaka Polytechnic InstituteDiploma in Computer Science and Technology
Started at Mymensingh Polytechnic Institute (1st semester), transferred in Dec 2022.
CGPA 3.42 / 4.00Session 2021-22
Recognition
Achievements and endorsements1st place, Software Testing
National selection round, international skills competition held in China
One thing I've noticed about Rafe is his ability to look at a complex problem, connect all the moving parts, and somehow make sense of the bigger picture.
I highly recommend Rafe to anyone looking for a skilled and dedicated software engineer for their website development projects.
His communication and problem-solving skills are outstanding, and he always approaches challenges with professionalism and a positive attitude.
Notes
All notesরাফিকে শুরু থেকেই extraordinary হিসেবেই চিনেছি আমি। একটা ছেলে, যে কিনা সবকিছুকে অন্যভাবে দেখে, অন্যভাবে চিন্তা করে। আর যেটা আমার কাছে সবচেয়ে বেশি ভালো লাগে, তা হলো তার ব্যক্তিত্ব। সে সবাইকে সম্মান করতে জানে।
Rafe is a standout engineer who deeply cares about fundamentals and clean architecture. He is dependable, takes full ownership, and consistently raises the bar for the team. Simply a great engineer and a solid teammate.
Rafe is a brilliant and creative guy I've known since our diploma days. He's hardworking, reliable, and always gives his best. As a friend, he's very helpful and supportive, though a little "BITLA" sometimes 😄. Glad to have shared so many great memories with him!
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