I'm Bushra Khandoker — a Computer Science student at the University of Greenwich (UK, Year 3), building at the intersection of systems engineering, AI/ML, and product development.

I don't just write code. I architect production systems, study machine learning from first principles, and solve real problems with measurable impact. My work spans from bKash-integrated e-commerce platforms in Bangladesh to interactive algorithm visualizers — each project grounded in genuine engineering depth.

Currently preparing for AI/ML engineering and software engineering roles at top-tier UK tech companies, while simultaneously working through a rigorous self-directed curriculum spanning algorithms, probability theory, linear algebra, and deep learning.

Heritage-quality, curated products delivered across Bangladesh with secure bKash payments.

A production-grade e-commerce platform built as a serious engineering portfolio piece — not a tutorial clone.

Next.js 14 (App Router)  ·  Supabase (PostgreSQL + Auth + RLS)
TypeScript  ·  Tailwind CSS  ·  bKash PGW Integration
Midnight Market Design System  ·  Vercel Edge Deployment

Engineering highlights:

• Atomic stock management via PostgreSQL RPC (prevents race conditions at the DB level)
• Row-Level Security policies with SSR-safe getUser() auth pattern
• bKash Payment Gateway callback handler with idempotency guard
• Custom middleware using Supabase SSR pattern for protected routes
• "Midnight Market" design system: deep navy + warm gold + Cormorant Garamond typography

Making algorithms feel less abstract and more alive.

Next.js  ·  TypeScript  ·  Tailwind CSS  ·  Recoil  ·  Firebase Auth

What makes it different: Visual, step-by-step algorithm execution with user accounts, progress tracking, and a responsive design built to teach — not just display. Inspired by the insight that deep understanding requires seeing a system move, not just reading its description.

Precision study tracking with a Pyodide/SymPy CAS calculator, multi-theme system, and Firebase sync.

React  ·  Firebase Auth + Firestore  ·  Pyodide  ·  SymPy  ·  IndexedDB

Engineering highlights:

• Computer algebra system (CAS) embedded via Pyodide with fast-first fallback and IndexedDB caching
• Multi-theme engine (5 themes: Pookie, Aesthetic, Steller, Notebook, Graph Paper) with canvas animations and custom cursors
• Magic link auth flow (OTPAuth) with production-safe Vercel deployment
• Firebase Firestore schema structured to eliminate composite index requirements

Next.js 14 (App Router)  ·  React  ·  TypeScript  ·  Tailwind CSS
Recoil  ·  HTML5  ·  CSS3  ·  Framer Motion  ·  Shadcn/ui

Supabase (PostgreSQL + Auth + Storage + Edge Functions)
Firebase (Auth, Firestore, Realtime DB)
Node.js  ·  REST APIs  ·  Vercel Edge Deployment
bKash Payment Gateway (PGW)  ·  Row-Level Security (RLS)

Arrays · Strings · Linked Lists · Stacks · Queues
Trees · BSTs · Heaps · Graphs · Hash Maps · Tries · Disjoint Sets

Dynamic Programming  ·  Greedy  ·  Divide & Conquer  ·  Backtracking
Binary Search  ·  Two Pointers  ·  Sliding Window  ·  Graph Traversals (BFS/DFS)
Topological Sort  ·  Segment Trees  ·  Union-Find

Linear Algebra (MIT 18.06)          →  matrix decompositions, eigenspaces, SVD
Probability Theory (Harvard Stat110) →  conditional expectation, LOTUS, MGFs
Statistics (MIT 18.650)             →  MLE, hypothesis testing, regression
ML Theory (Stanford CS229)          →  gradient descent, SVM, neural nets
Deep Learning (Goodfellow et al.)   →  backprop, CNNs, regularisation
Pattern Recognition (Bishop PRML)   →  probabilistic graphical models