Khandakar
Tahidur Rahman
Applied Mathematician & Full-Stack Systems Architect
I turn formal mathematical models and algorithmic rigor into production-grade systems. Creator and architect of multiple AI applications and distributed production platforms—from Edukracy AI's real-time voice & whiteboard tutor running over rural 2G connections, the trilingual Edukracy RAG AI pipeline, and low-latency C++ speech engines, to shipping dual-sided mobility suites (CarryGoods Customer & Driver apps, RedBike Taxi Passenger & Captain apps) on Google Play Store with sub-second geospatial telemetry, alongside the ZyroRyde dispatch architecture.
Shipped AI & Production Applications
2G Sync
Low-bandwidth vector canvas protocol at Edukracy
6+ Apps
AI voice tutors, RAG engines & Play Store suites
7.8 GPA
M.Sc. in Mathematics (USTM, 2018–20)
103+ Repos
Public code, Dart, C++, Flutter & AI systems
Three.js Geometric Core & Particle Mesh
Rendered in real time with Three.js WebGL & custom point shaders
Curated Developer Bio & Profiles
Multi-format professional bios tailored for GitHub, LinkedIn, technical leadership, and engineering pitches.
Executive & Founder Pitch Bio
Designed for investors, engineering leaders, and enterprise partners.
M.Sc. Mathematics
USTM • 7.8 GPA (2018-20)
Shipped Applications
Edukracy AI • CarryGoods • RedBike • Linux Dev Cleaner
Cross-Platform Stack
Flutter • React • Three.js • Node
Featured Engineering Work
Commercial AI platforms, on-demand logistics ecosystems, and open-source packages shipped by Tahidur.
Edukracy AI Ecosystem
AI Teacher with Real-Time Whiteboard & Speech Synthesis
A transformative Socratic learning platform where an AI tutor speaks out loud and writes synchronously on a live interactive whiteboard in Assamese, Hindi, and English. Designed to detect conceptual misconceptions first, rather than merely spitting out chatbot answers. Engineered to operate smoothly on 2G rural internet connections.
Key Metrics & Architectural Feats:
Under the Hood:
Lightweight custom vector canvas protocol minimizing payload size by 85% compared to video streaming
Socratic dialogue state engine prompting users to solve intermediate steps before advancing
Synchronized audio playback and real-time canvas stroke rendering pipeline
Edukracy Trilingual RAG AI
Retrieval-Augmented Generation for Regional Curriculum
A specialized multi-lingual RAG pipeline built with Python and vector embeddings to deliver verified, contextual STEM explanations across Assamese, Hindi, and English without hallucinations. Seamlessly integrated into Edukracy's interactive Socratic AI blackboard engine.
Key Metrics & Architectural Feats:
Under the Hood:
Domain-tuned chunking algorithms preserving mathematical equations and Indic scripts
Hybrid dense-sparse retrieval combining vector similarity with BM25 keyword matching
Asynchronous FastAPI microservice serving Edukracy client canvas nodes
CarryGoods Logistics Platform
Full-Stack On-Demand Delivery & Fleet Ecosystem
An end-to-end commercial logistics ecosystem comprising a customer booking app, driver delivery app with GPS turn-by-turn routing, and a real-time web dispatch dashboard.
Key Metrics & Architectural Feats:
Under the Hood:
Optimized battery-conscious background location tracking on Android using native headless services
Laravel REST backend with rate limiting, secure payment gateway integrations, and order state transitions
Geo-spatial proximity querying for nearest active driver dispatch algorithm
RedBike Taxi Mobility
Urban 2-Wheeler On-Demand Ride Hailing
High-throughput bike taxi platform providing rapid urban transit with dynamic fare estimates, live driver matching, in-ride emergency alerts, and driver earnings payouts.
Key Metrics & Architectural Feats:
Under the Hood:
Geohash-indexed driver clustering in memory for low-latency rider-driver pairing
Resilient WebSocket reconnection strategy handling mobile packet drops in transit
Driver verification pipeline with automated license and registration document audits
ZyroRyde Core Architecture
Scalable Ride-Hailing API & Administrative Gateway
Distributed backend architecture engineered to manage multi-city mobility dispatches, driver payroll, commission calculations, and regulatory compliance logs.
Key Metrics & Architectural Feats:
Under the Hood:
ACID-compliant double-entry ledger architecture for rider wallets and driver balances
Queue-driven notification and event dispatchers offloading API response cycles
Optimized SQL query patterns with indexed composite search keys for millions of trip records
FlareLine UI Kit & Flutter Web
Modular Component Architecture for Cross-Platform Apps
High-performance Flutter UI kit designed for modern enterprise dashboards and consumer mobile applications with seamless responsive web compatibility.
Key Metrics & Architectural Feats:
Under the Hood:
Adaptive layout breakpoints handling phones, foldables, tablets, and wide monitors
Strict state decoupling using reactive patterns (ChangeNotifier/Provider)
Zero external UI dependency lock-in, ensuring long-term maintainability
Speech & Machine Learning Labs
Low-Latency Phonetic Recognition & Edge Inference
Experimental repositories exploring real-time speech-to-text decoding, phonetic tokenization, and TensorFlow model inference for regional language acoustic modeling.
Key Metrics & Architectural Feats:
Under the Hood:
Circular ring-buffer implementation in C++ for glitch-free microphone capture
Fast Fourier Transform (FFT) spectrogram feature extraction
Explorations into quantized model execution on low-spec client devices
Purge for Ubuntu (Linux Dev Cleaner)
Allowlist-Governed System & Developer Disk Cleaner
A safe, GTK4 & libadwaita desktop utility built in Python for Ubuntu developers. Reclaims gigabytes of disk space by purging orphaned app caches, Flutter/Android SDK artifacts, build outputs (node_modules, target), duplicate files, and system journals under strict never-delete security rules.
Key Metrics & Architectural Feats:
Under the Hood:
Native python3-apt & scandir traversal avoiding fragile apt/du CLI subshell parsing
Isolated root execution through pkexec helper accepting constrained verbs only
Declarative data-driven dev_catalog.json and explanations.json schema architecture
GitHub Profile At A Glance
Live telemetry snapshot from github.com/tahidur-rahman0 with 103+ public repositories and 1,000+ yearly contributions.
Tohidur Rahman
@tahidur-rahman0103+ Repos👨💻 Co Founder @ EDUKRACY SMART SOLUTION PRIVATE LIMITED 💻 Flutter | Laravel | Node.js | React ☁️ Firebase | GCP | AWS 🐍 Python | PHP
103+
Public & Commercial
1,047+
In the last 12 months
100%
Direct code authoring
5 Years
2022 — 2026 active
1,047 contributions in the last year
Popular Repositories & Engineering Modules
View all 103+ repositories →brain_teaser
Interactive mathematical logic and puzzle algorithms built in Dart & Flutter.
gameboy_bricks
Retro Game Boy brick-breaker mechanics, 2D sprite rendering, and collision math.
speech-to-text
Low-latency audio packet processing and neural speech transcription in C++.
weather
Algorithmic meteorological parser and telemetry data fetcher written in C++.
state-management-provider
Reactive state dispatch and unidirectional data flow pattern modeled in C++.
linux_dev_cleaner
Purge for Ubuntu: Safe, allowlist-governed disk space cleaner for Linux developers built with GTK4 & libadwaita.
FlareLine-UiKit
Modern responsive UI kit and clean architecture component system for Flutter & Flutter Web.
Edukracy Interactive Whiteboard Engine
Interactive canvas replica of the low-latency vector board designed by Tahidur for Edukracy. Freehand draw or explore live lesson presets.
Technical Stack & Architectural Core
Bridging mathematical theory with production full-stack, mobile, and WebGL graphics.
Frontend & 3D Graphics
Immersive, high-speed user interfaces and WebGL graphics
↳ App router, SSR, Server Actions, Client state
↳ Interactive 3D geometry, shaders, particles, scene graph
↳ Modern utility systems, dark mode, responsive glassmorphism
↳ Real-time drawing engines, coordinate transforms, stroke math
↳ Type-safe architectures, async pipelines, Web APIs
Mobile App Engineering
Production iOS & Android cross-platform ecosystems
↳ Provider, Bloc, Riverpod, custom painters, platform channels
↳ Live geolocation, custom markers, polyline routing, geofencing
↳ Clean architecture, reactive event streams, offline persistence
↳ Keystores, CI/CD builds, release management, Play Console
Backend, APIs & Cloud
Distributed backends, real-time channels, and database systems
↳ REST, WebSockets (Socket.io), microservices, JWT auth
↳ Eloquent ORM, queues, Artisan CLI, API gateways
↳ FastAPI, mathematical scripts, data pipelines, ML prototyping
↳ Schema design, relational indexing, transaction isolation
↳ Firestore, Cloud Functions, FCM notifications, Auth
↳ Compute Engine, S3/Cloud Storage, Docker, Vercel
Applied Mathematics & Algorithms
Formal academic foundations (M.Sc. Mathematics, 7.8 GPA)
↳ Shortest paths, spatial connectivity, dispatch optimization
↳ Interpolation, root finding, linear algebra, vector projections
↳ Time/space complexity minimization, caching hierarchies
↳ Spline smoothing, touch interpolations, audio buffer math
Languages & Regional Linguistic Coverage (Key for Edukracy Indic AI)
Interactive UNIX Terminal Shell
Founder & Engineering Journey
A progression from mathematical research to founding Edukracy and shipping commercial mobility solutions.
Co-Founder & Chief Technology Officer (CTO)
Directing tech vision, product architecture, and engineering execution for an AI-driven educational platform built to bring voice & live whiteboard tutoring to millions across regional India.
Full-Stack Systems & Mobile Architect
Engineered high-concurrency on-demand transport and delivery logistics ecosystems.
Independent Software Consultant & Open Source Creator
Consulted for startups and built open-source developer tooling, Flutter UI kits, and experimental machine learning utilities.
Master of Science (M.Sc.) in Mathematics
University of Science and Technology, Meghalaya (USTM)
Graduation Grade: 7.8 GPA
Specialized research and coursework in Applied Mathematics, Graph Theory, Numerical Methods, and Algorithmic Complexity. This deep foundation in abstract algebra, topology, and discrete mathematics directly empowers Tahidur's computational geometry, spatial routing heuristics, and low-level rendering optimizations.
Let's Build Something Great
Available for founding technical roles, strategic architecture consulting, and select speaking/advisory opportunities.
EMAIL ADDRESS
rahmantohidur12@gmail.comPHONE & WHATSAPP
+91 70027 10476Direct Social & Developer Profiles