Hello, I'm

Abdulrahman Al-Fakaih

Full-Stack Engineer

Backend Infrastructure · Mobile Platforms · Data Systems. Building production-grade systems powering consumer platforms at scale with 11,500+ users, 87.5% pipeline efficiency gains, and 97% crash-free mobile performance.

4+ Years Experience
11.5K+ Users Served
87.5% Pipeline Efficiency
Abdulrahman Al-Fakaih

01. About Me

Full-Stack Engineer with 4+ years of experience building production-grade systems across data engineering, backend platforms, and mobile applications.

Proven track record of designing high-throughput data ingestion pipelines, graph-based identity resolution systems, and server-driven mobile architectures powering consumer platforms at scale (11,500+ users).

Deep expertise in Python/Prefect, Node.js/TypeScript, and React Native, with measurable impact including 87.5% ingestion time reduction, 200% traffic growth, and sustained 97% crash-free mobile performance.

Data Engineering

Designed graph theory–based identity resolution engines and canonical ETL pipelines normalizing data across 50+ product categories and 14+ stores.

Backend Architecture

Built high-throughput ingestion services, real-time search systems via Typesense, and Server-Driven UI frameworks enabling OTA mobile updates.

Mobile at Scale

Delivered consumer apps serving 11,500+ users with 97% crash-free rate, streaming AI chat interfaces, and 25% FPS improvements.

02. Experience

Full-Stack Engineer

Nexumind
Dec 2024 - Present Remote (Saudi Arabia)

Lead Full-Stack Engineer for the Rakhys ecosystem (11,500+ users), driving architectural decisions across data ingestion, backend systems, and mobile platform development. Designed graph-based identity resolution achieving 80% stable ID coverage and 200% traffic growth. Reduced data ingestion time by 87.5% (8h → 1h).

Python Prefect Node.js TypeScript React Native PostgreSQL AWS S3 Typesense Docker

Backend Developer

Horizontal
Nov 2022 - Oct 2024 Sana'a, Yemen

Built Laravel REST APIs and normalized schemas for a logistics platform. Architected multi-tenant RBAC systems. Reduced API latency by 20% via eager loading and indexing.

Laravel MySQL REST APIs Eloquent Sanctum

Full-Stack Developer

Artech Software Solutions
Nov 2022 - Oct 2023 Sana'a, Yemen

Built Hatheq, an e-commerce platform using Laravel and Flutter. Integrated FCM for push notifications.

Laravel Flutter Firebase MySQL

Junior ML Engineer

IUTT Research Team
Oct 2021 - Sep 2022 Sana'a, Yemen

Built a masked face recognition model achieving 93% accuracy using VGG16/ResNet. Co-authored a paper published in Springer ICESP 2023.

Python TensorFlow VGG16 ResNet OpenCV

03. Skills & Technologies

Data Engineering

Python / Prefect
Node.js / TypeScript
PostgreSQL / Typesense
ETL & Stream Processing
AWS (S3, EC2)

Backend Development

Laravel / PHP
Node.js / Express
REST APIs / SDUI
Docker / Nginx

Mobile Development

React Native / Expo
FlashList / Reanimated
TanStack Query
Firebase (Crashlytics)

AI / Machine Learning

Python / TensorFlow
Transfer Learning
Computer Vision
Graph Theory

04. Featured Projects

Rakhys Ecosystem

Lead engineer for consumer platform serving 11,500+ users. Built data pipelines, identity resolution engine, real-time search, and mobile app with streaming AI chat interface.

Python Prefect React Native Typesense PostgreSQL
87.5% faster ingestion, 200% traffic growth, 97% crash-free

Identity Resolution Engine

Graph theory–based system matching products across 14+ stores. Achieved 80% stable ID coverage enabling clustering features that drove significant traffic increase.

Python PostgreSQL Graph Theory ETL
80% ID coverage, 200% traffic increase

Server-Driven UI Framework

Designed and deployed SDUI framework enabling non-engineers to manage mobile layouts, banners, and promotions without app releases.

Node.js TypeScript React Native SDUI
Zero-deploy content updates

Hatheq E-commerce

Full-stack e-commerce platform built with Laravel backend and Flutter mobile app. Integrated push notifications via FCM.

Laravel Flutter Firebase MySQL
Complete e-commerce solution

05. Research & Publications

Springer

Masked Face Recognition Using Transfer Learning Approaches

Built a masked face recognition model achieving 93% accuracy using VGG16/ResNet transfer learning approaches. The research proposes methods to overcome challenges of partial face occlusion in recognition systems.

November 2023 4th International Conference on Electronics and Signal Processing (ICESP 2023)
Read Publication

06. Get In Touch

I'm always open to discussing new projects, technical challenges, or opportunities to build systems at scale. Whether you need help with data engineering, backend architecture, or mobile development - let's connect!