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Ferdous Sazid

Owner @ Crochethia • Jashore

FS•Founder @ Crochethia • Jashore, Khulna, Bangladesh

MD. Ferdous Sazid

Owner & Founder @ Crochethia

Software Engineer graduated from AIUB (CGPA 3.91, 4x Dean's List). Engineered high-throughput bKash Tokenized Payment Gateways across 30+ client platforms at Hyper Systems LTD. Currently the Owner and Founder at Crochethia, an artisanal crochet business based in Jashore, Khulna, Bangladesh.

Crochethia VentureCurated Projects
ferdoussazid2015@gmail.com•GitHub•LinkedIn•+880 1775004380
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MD. Ferdous Sazid
Software Engineer • Founder
Crochethia
Ventures
Founder • Est. Nov 2025
30+
Fintech Gateways
bKash Tokenized Deployments
3.91
Academic CGPA
AIUB • 4x Dean's List Award
Jashore
Location
Khulna, Bangladesh
BUSINESS VENTURE

Co-Founder & Co-Owner at Crochethia

Handcrafted artisanal crochet & fiber art business founded on November 1, 2025, operating from Jashore, Khulna, Bangladesh.

Crochet Business • BangladeshFounded Nov 1, 2025

Crochethia

Handcrafted Crochet Artistry & Fiber Goods

A bespoke crochet brand based in Bangladesh crafting handmade fashion accessories, floral crafts, and artisan fiber products. Currently managing client commissions and developing the official e-commerce web platform.

Jashore, Khulna, Bangladesh
Active Business Owner
Custom-made wearable crochet accessories & artisanal fiber designs
Direct-to-consumer client commissions with worldwide delivery capability
Currently engineering the dedicated Crochethia e-commerce web platform
Official Channels

Connect with Crochethia

Follow for latest handmade collections, custom orders, and brand announcements.

Facebook Page@crochethia.official
Instagram Profile@crochethia.official
E-Commerce WebsiteCurrently under active development • Coming Soon
CORE ENGINEERING WORK

Selected Projects & Repositories

Focused software engineering portfolio: payment gateway infrastructures, live Next.js platforms, cryptographic verification, cinema directories, and statistical machine learning.

fintech30+ Live Sites • 99.9% Reliability • One-Click Checkout

bKash Tokenized Payment Gateway Engine

Enterprise Payment Integration with Agreement & Recurring Capabilities

Production-ready payment gateway orchestration system for Bangladesh's leading MFS provider bKash. Features tokenized checkout with agreement, grant token refresh, execute payment, automated signature verification, and refund webhooks. Deployed in over 30 production websites.

Implemented Tokenized Agreement lifecycle allowing seamless one-click recurring customer charges
Integrated into 30+ client platforms spanning Node, Nest, Laravel, and WordPress
Comprehensive error-handling and fallback recovery for mobile carrier timeouts
JavaScriptNode.jsNestJSbKash APIFintechSecurity
Source
webLive on Vercel • 100% TypeScript • Modern UI/UX

Thousand Shades of Woman

High-Performance Modern Web Platform on Next.js & Vercel

A production web application built using Next.js, React, and TypeScript. Highlights elegant design, seamless navigation, responsive animations, and modern frontend best practices. Deployed live with global edge CDN.

Engineered with Next.js App Router and TypeScript for maximum stability and speed
Fluid responsive design with custom aesthetic typography and layout
Live deployment on Vercel with instant global edge cache delivery
Next.jsTypeScriptTailwind CSSReactVercel
SourceLive App
fintechZero Double-Spend Protocol • Cryptographic Hashes

Decentralized Transaction Validation System

Cryptographic Integrity Checks for Financial Transfers

Exploration of decentralized transaction verification using PHP and JavaScript. Implements distributed cryptographic verification rules to ensure zero double-spending or tampered transaction logs.

Decentralized ledger emulation to prevent fraudulent financial transfers
Client and server-side cryptographic verification handshakes
Rigorous state checking for balance synchronization and tamper-proofing
PHPJavaScriptFintechSecurityDecentralized
Source
webFull Catalog DB • Reviews & Ratings Engine

iMBD — Cinema & Media Directory

Film Directory, Critic Reviews & Star Ratings Platform

A feature-rich film database platform tailored for Bangladesh's film landscape (affectionately dubbed iMBD). Built with PHP, MySQL, JavaScript, and custom styling for cinema aficionados.

Comprehensive movie catalog, cast profiles, star ratings, and community reviews
Custom search, filtering engine, and responsive media gallery
Relational database modeling for cinema releases and critic feedback
PHPMySQLJavaScriptWeb Tech
Source
mlMultiple AI Paradigms • Scratch Math Implementation

Machine Learning & Scientific AI Suite

KNN, Linear Regression, Neural Networks & Q-Learning

A comprehensive suite of statistical machine learning algorithms and reinforcement learning agents implemented in Python. Includes K-Nearest Neighbors with Manhattan vs Euclidean distance comparison, Linear Regression with Gradient Descent, Multi-layer Neural Networks, and Q-Learning state-action optimization.

KNN: evaluates Manhattan vs Euclidean distance formulas for optimal classification accuracy
Linear Regression: Gradient descent convergence from first mathematical principles
Q-Learning: State-action reward optimization navigating dynamic agent environments
PythonMachine LearningQ-LearningNumPyNeural Networks
Source
CAREER & VENTURES

Professional Experience

Current business ownership at Crochethia alongside prior fintech engineering at Hyper Systems LTD.

Owner & Founder

@ Crochethia
11/2025 – Present•Jashore, Khulna, Bangladesh
CURRENT VENTURE

Founder and executive lead directing operations, customer orders, and digital platform development for Crochethia.

Founded Crochethia on November 1, 2025, specializing in artisanal handmade crochet goods crafted in Bangladesh.
Overseeing customer acquisition and digital branding across official Facebook and Instagram channels.
Architecting the forthcoming Crochethia custom e-commerce web platform with automated order workflows.
Business OperationsE-CommerceNext.jsBrand GrowthCustomer Relations

Software Developer

@ Hyper Systems LTD
07/2025 – 10/2025•Dhaka, Bangladesh

Payment infrastructure and enterprise frontend engineering in agile cross-functional squads.

Core member of the bKash Payment Gateway Integration team: engineered tokenized with agreement APIs, webhook verifications, and automated token refresh pipelines.
Delivered production bKash payment integrations across 30+ client web portals with 99.9% payment authorization reliability.
Engineered core modules of Raadar RMS (Restaurant/Retail Management System) web platform using Vue.js.
Node.jsNestJSVue.jsbKash Tokenized APILaravelPostgreSQLREST APIs

Software Engineer Intern

@ Hyper Systems LTD
09/2024 – 11/2024•Dhaka, Bangladesh

Hands-on engineering internship focused on payment system testing and API verification.

Developed automated API testing scripts with Postman to validate payment lifecycle states (Create, Execute, Query, Refund).
Assisted in refactoring legacy PHP payment hooks into modular JavaScript micro-handlers.
JavaScriptPostmanPHPGitREST APIsNode.js
CORE COMPETENCIES

Technical Skillset

Fintech payment pipelines, modern web & e-commerce frameworks, and scientific machine learning algorithms.

Fintech & Backend Architecture

Mission-critical payment gateways, microservices, and high-concurrency server environments.

bKash Tokenized API98%

30+ production sites with Agreement flow

Node.js & Express95%

Async microservices & REST APIs

NestJS Framework92%

Enterprise TypeScript architecture & guards

PostgreSQL90%

Relational modeling, indexing & transactions

RESTful APIs & Webhooks96%

Secure payment webhooks & signature auth

ACADEMIC DISTINCTION

Education & Dean's List Honors

Continuous academic excellence at AIUB recognized through 4 consecutive Dean's List Awards.

AIUB ALUMNUS
CGPA: 3.91 / 4.00Graduated with High Honors

Bachelor of Science in Computer Science & Engineering

American International University - Bangladesh (AIUB) • Major in Software Engineering

Awarded Dean's List Honor 4 Times for continuous academic distinction.
Specialized in Software Architecture, Distributed Systems, Algorithms, and Machine Learning.

4x Dean's List Honor

3.91 Final CGPA

Verified credential certificates provided below

Dean's List Honor Certificates (Attached Serially)
4 Official Certificates
Award #01Year 2022
3.93 GPA

Dean's List Award (Spring 2021–22)

Semester: Spring 2021–2022

Conferred for outstanding academic excellence with a semester GPA of 3.93 / 4.00 at AIUB.

View Verified Certificate
Award #02Year 2022
3.88 GPA

Dean's List Award (Fall 2021–22)

Semester: Fall 2021–2022

Conferred for sustained academic distinction with a semester GPA of 3.88 / 4.00 at AIUB.

View Verified Certificate
Award #03Year 2023
4.00 GPA★

Dean's List Award (Spring 2022–23)

Semester: Spring 2022–2023

Conferred with a perfect semester GPA of 4.00 / 4.00 in advanced software engineering at AIUB.

View Verified Certificate
Award #04Year 2023 / 2024
4.00 GPA★

Dean's List Award (Fall 2022–23)

Semester: Fall 2022–2023

Conferred with a perfect semester GPA of 4.00 / 4.00 leading to cumulative 3.91 graduation honors at AIUB.

View Verified Certificate
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Get in Touch

For software consulting, fintech integrations, or inquiries regarding Crochethia custom orders.

Location Base

Jashore, Khulna, Bangladesh

Jashore, Khulna, Bangladesh • Available for remote and hybrid collaboration worldwide.

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