Software Engineer at OllyoSUST Software Engineering GraduateThemeum • Tutor LMS Core

Abir

✨English•“Radiant Color”
Fahim Faisal•Software Engineer•@blind

High-Performance Systems, Fluid UI & Local-First Architecture.

Explore Case StudiesGet in Touch
Tutor LMS Student Course Player Experience
60 FPS
Biography & Profile
Fahim Faisal
Software Engineer

Abir(Fahim Faisal)

SUST SWE · Ollyo

Available for Senior RolesFull-Time / Lead

Hello,

I am Abir (Fahim Faisal), a Software Engineer with a B.Sc. in Software Engineering from Shahjalal University of Science and Technology (SUST). I engineer high-concurrency web platforms, tactile user interfaces, and responsive motion architectures.

Experiences & Ascension

2x promotion in 2 years
2026Software EngineerCurrent

Ollyo · Themeum • Tutor LMS Core (v2.0 → v4.0), powering 120,000+ academies globally.

2025Associate Software Engineerpromoted

Continuous lesson player, dynamic quiz engines & locked 60 FPS compositor motion.

2024Junior Software EngineerJoined Ollyo

Tutor LMS 2.0 component library, state machine reducers & course builder cockpit.

2018 – 2023B.Sc. in Software EngineeringGraduated

SUST · Shahjalal University of Science & Technology • Dept. of CSE. 5-year curriculum in Distributed Systems, Process Concurrency & Algorithms.

Index Directory

Contents & Navigation

Direct jump table across flagship enterprise platforms, engineered mobile systems, and architectural blueprints.

One :

Tutor LMS

Zero-CLS FLIP Reorder Tree

Course & Curriculum Builder

Tutor Core Component Registry

Decoupled Hydration & Extension

useTutorMotion Coordinator Hook

WCAG 2.1 AAA Motion State

Lesson Cockpit & Telemetry

Sub-50ms Response · 120K+ Academies
Two :

Engineered Systems

Argon2id · AES-256-GCM · React Native

Enclave Zero-Knowledge Vault

Google Drive 3-Way Sync Engine

Hardware Biometrics & Dynamic TOTP

OmniCommerce Headless Suite

Decoupled Storefront & Multi-Tenant Admin

DocApp Healthcare Suite

Multi-Role RBAC & Appointment Engine
Three :

Track Record & Dossier

Senior Software Engineer · Ollyo

Career Track Record

Engineering Philosophy & Bio

Academic Background · SUST B.Sc. SWE

Technical Competencies

Architecture, Frontend, Systems & Security

Direct Channels & Resume

GitHub, LinkedIn, Direct Email
Engineering Track Record

Engineering Experience

Track record of architecting mission-critical platforms, high-throughput engines, and fluid design systems in production environments.

Current Employer

Software Engineer

·Ollyo

Themeum Core Product Division, Dhaka, Bangladesh

2024 – Present

Career Trajectory at Ollyo :2x in 2 Years

2026Software EngineerCurrent Role

Ollyo • Frontend architecture, dynamic state orchestration & high-concurrency client engines across 120,000+ academies globally.

2025Associate Software Engineer1st promotion

Ollyo • Continuous lesson video player, dynamic quiz runners & locked 60 FPS compositor physics.

2024Junior Software EngineerJoined Ollyo

Ollyo • Tutor LMS 2.0 core component library, form state reducers, and architectural design token primitives.

Primary products engineered

Tutor LMSLive Product

Core frontend architecture across 2.0 to 4.0: continuous lesson cockpit, Tutor Core component registry, 3rd-party field injection pipeline, zero-CLS curriculum builder, and sanitized quiz assessment engine.

Key architectural highlights

  • Promoted from Junior Software Engineer (2024) to Associate Software Engineer (2025) and Software Engineer (2026) within 2 years, driving core frontend initiatives.
  • Led frontend development and feature releases across Tutor LMS 2.0 to 4.0, maintaining fluid GPU-composited transitions and zero layout shifts (0.00 CLS).
  • Architected the Tutor Core Component Registry with strict typed schemas for 3rd-party WordPress add-on and field injections.
  • Authored centralized motion settings coordinator hook (useTutorMotion) enforcing WCAG reduced-motion standards and performance budgets.
  • Engineered continuous telemetry sync and client-side LRU query caching reducing server roundtrip load by 90% across 120,000+ active installations.
ReactTypeScriptWordPress REST APIObject-Oriented PHPRsbuildTailwind CSSStorybookCypress
FLAGSHIP WORKS

Featured Case Studies

Architectural blueprints, interactive state machines, and verified production source code across high-scale enterprise platforms and local-first software.

4 Flagship Deployments Verified
01Enterprise Flagship · 120,000+ Academies
Core Frontend & Lesson Cockpit Architecture

Tutor LMS

Enterprise EdTech Architecture at Global Scale

Core frontend architecture for WordPress's leading LMS platform powering 120,000+ academies. Designed zero-CLS curriculum builder, lesson cockpit, extensible component registry, and automated quiz evaluation.

ReactTypeScriptWordPress CorePHP 8.xZustandTailwind CSS
Explore Technical Case Study
System Blueprint3 Verified Stages
01
Modular Topology
System Topology & Extensibility Registry
02
Execution Flow Engine
Course Curriculum Builder Engine
03
Verified Source Studio
useTutorMotion Coordinator Hook
Active Deployments
120K+
Cumulative Layout Shift
0.000
Component Registry
Strict Typed
Motion Target
60 FPS
Enclave Vault Icon
02Mobile Cryptography · Zero-Knowledge
Private Repository
Local-First Vault & RFC 6238 TOTP Engine

Enclave

Self-Hosted, Local-First, Zero-Knowledge Credential & Vault Manager for iOS & Android

Enclave is engineered around a strict zero-knowledge security boundary: plaintext passwords and private keys never leave the mobile device or reach cloud storage unencrypted. Master passphrases are stretched using memory-hard Argon2id with ...

React Native 0.86Expo SDK 57Expo Router v6SQLite (Local-First)Native Quick CryptoArgon2id Key DerivationAES-256-GCM CipherBIP39 24-Word RecoveryRFC 6238 TOTP EngineGoogle Drive 3-Way Sync
Explore Technical Case Study
System Blueprint3 Verified Stages
01
Modular Topology
Zero-Knowledge Local-First Architecture & Secure Key Derivation
02
Execution Flow Engine
Interaction Flow: Biometric Vault Unlock to Dynamic TOTP & 3-Way Sync
03
Verified Source Studio
Argon2id Master Key Derivation & AES-256-GCM Cryptographic Engine
Encryption
AES-256-GCM
KDF Algorithm
Argon2id + BIP39
2FA Generator
RFC 6238 TOTP
Sync Protocol
3-Way Merge
03Headless E-Commerce · Decoupled Pair
/Live Deployment
Multi-Tenant SaaS Control Plane & Stripe Webhook Pipeline

OmniCommerce Headless Platform

Multi-Tenant Merchant Control Plane, Headless Storefront & Stripe Webhook Fulfillment Engine

OmniCommerce is engineered as an enterprise headless commerce system composed of two decoupled Next.js codebases. The Admin Control Plane (b-l-i-n-d/ecommerce-admin) serves as a multi-tenant merchant portal powered by Clerk authentication, ...

Next.js 13+ (App Router)TypeScriptReact 18Prisma ORMMySQL / PlanetScaleStripe Payments APIClerk AuthenticationZustand (Persistent Store)Radix UI & Tailwind CSSTanStack TableRechartsCloudinary Media CDN
Explore Technical Case Study
System Blueprint3 Verified Stages
01
Modular Topology
Decoupled Headless Topology: Control Plane & Dynamic Storefront
02
Execution Flow Engine
Consumer Journey: Browse → Persistent Cart → Stripe Checkout → Webhook
03
Verified Source Studio
Idempotent Stripe Webhook & Atomic Inventory Decrementing
Architecture
Decoupled Headless Pair
Payments Engine
Stripe Webhook Sync
Multi-Tenancy
Clerk + Multi-Store DB
Inventory
SizeStock Variant Matrix
04Healthcare Suite · Multi-Role State Machine
/Live Deployment
Rotating Cookie-JWT & React-PDF Dossier

DocApp Healthcare Suite

Full-Stack Medical Appointment Booking Platform & Clinical State Machine

DocApp coordinates patients, doctors, and clinic administrators across a Vite/React client and a component-based Express API (models → controllers → routes per domain: users, doctors, departments, districts, workplaces, appointments). Authe...

React 18ViteRedux Toolkit & RTK QueryAnt DesignTailwind CSSdaisyUIChart.jsReact PDF RendererNode.jsExpressMongoDB & MongooseCloudinary
Explore Technical Case Study
System Blueprint3 Verified Stages
01
Modular Topology
Three-Tier Clinical Scheduling Architecture & Component-Based API
02
Execution Flow Engine
Interaction Flow: Doctor Search → Booking Request → PDF Export
03
Verified Source Studio
Doctor Appointment Creation & Validation Controller
Portals
Patient · Doctor · Admin
Auth
Cookie JWT Rotation
Export
React-PDF Dossier
Client
React 18 + Vite
Final Dispatchlet's build together · 2026
Available for Senior Roles · Worldwide

Let's engineer something exceptional.

Specialized in fluid design systems, zero-latency state models, and scalable frontend architectures.

Send Email
LinkedIn/GitHub/X (Twitter)

Off-Duty: Squad Sniper in Warzone · Kinetic drift in Chase · Sub-140ms reflex junkie.

Fahim Faisal (Abir)@blind
designer · coder · sniper

Fahim Faisal (Abir)

Software Engineer · Ollyo

PedigreeSUST SWE (2018–2023)
Core FocusFluid UI & State Models
Scale120K+ Production Academies
LocationDhaka, BD (UTC+6)