Freelancer profile translated to English.

Description

I am an Engineering Leader (Backend) and former founder with over 6 years of experience in scalable systems architecture, complex hardware-software integrations, and leading remote multidisciplinary teams.

My career spans enterprise HR platforms, large-scale logistics, IoT hardware, and dynamic startup environments. I don't just write code; I build sustainable, secure, and revenue-protecting architectures.

What I bring:

Architecture & Scalability:

Specializing in modernizing legacy systems with Clean Architecture, building highly available rate-limiting systems, and high-concurrency distribution.

IoT & Advanced Integration:

Full integration of proprietary IoT devices (ESP32) and designing inter-network interoperability (OCPI/OCPP) for the EV sector.

Cross-functional Leadership:

Leading backend, frontend, and mobile (Flutter) developers while optimizing DevOps to reduce CI/CD build times by over 50%.

Security & Business Logic:

Technical liaison for external security audits, vulnerability remediation, and designing modular, zero-downtime payment architectures (Stripe, Payfort) to eliminate vendor lock-in.

Technical Arsenal:

Backend:PHP, Laravel, Yii, Yii 2, Codeigniter, MySQL/PostgreSQL, Clean Architecture, OOP, WebSockets, Redis
Frontend & Mobile:Vue.js, TypeScript, AngularJS, Flutter cross-management
Protocols & DevOps:OCPP, OCPI, Fastlane, GitLab CI/CD, Enterprise Security (DevSecOps)

I am currently seeking my next challenge (Engineering Manager, Tech Lead, or Senior Backend Engineer) where I can drive technical excellence and product delivery.

Industry field of expertise

Languages

Arabic
Native or bilingual
English
Fluent
French
Fluent

Workplace preferences

Remote only

Primarily works remotely

Bayt.com
Software Engineer Team Leader
HUMAN RESOURCES
June 2025 - June 2026 (1 year)
Amman, Jordan
Designed a highly available rate-limiting system that balances response time with availability, utilizing a probability-based write-through mechanism to optimize heavy load performance. Engineered a high-performance, OOP-based email template engine with an advanced caching layer, achieving ultra-low rendering times of 0.09ms and reducing server overhead.
Spearheaded the modernization of the Employer CV Search module, successfully migrating 70% of the core architecture to a Clean Architecture model using Vue.js, TypeScript, and OOP principles.
Directed enterprise security initiatives as the primary technical liaison for external consultants, managing the rapid remediation of backend vulnerabilities.
Led a cross-functional team of 3 developers on two concurrent mobile Flutter projects, managing sprint delivery and architectural alignment.
Optimized mobile deployment pipelines, reducing GitLab CI/CD build times by over 50% and architecting an automated QA/deployment pipeline using Fastlane.
Vue.js JavaScript software-architecture external-api-integration Gitlab CI/CD
Gasable
Lead (Powerly Project) & Backend Engineer
ENERGY AND UTILITIES
May 2022 - July 2025 (3 years and 2 months)
Riyad, Saudi Arabia
Architected a multi-version OCPP-compliant backend to manage real-time hardware-to-cloud communication for the "Powerly" EV infrastructure project.
Engineered cross-network interoperability via OCPI protocols, enabling EV roaming capabilities and data exchange.
Led end-to-end hardware-software integration for IoT devices, connecting in-house ESP32-based chargers to the cloud.
Provided direct, client-facing technical support to remotely configure high-voltage DC fast chargers.
Designed a modular payment processing architecture integrating Stripe and Payfort, utilizing scalable patterns for zero-downtime gateway switching
external-api-integration software-architecture backend-service-development OCPP OCPI
fb-technologies
Backend Web Developer (Tech Lead)
TELECOMMUNICATIONS
September 2020 - April 2022 (1 year and 7 months)
Douéra, TP, Algeria
Architected and delivered 3 greenfield products from scratch using Laravel and MySQL/PostgreSQL, including a comprehensive logistics delivery platform and a VTC (ride-hailing) system.
Engineered high-concurrency dispatch systems utilizing WebSockets and Laravel Queues (via Redis) for real time driver tracking.
Managed VPS production deployments and implemented core security protocols across the company portfolio.
Mentored a team of 4 developers, driving Agile sprint cycles, conducting PR code reviews, and steering a complete architectural rebuild of a legacy application.
Translated localized business constraints into scalable software architecture as the primary technical liaison for clients.
Laravel PHP/MySQL Yii2 Nginx Flutter

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Master's Degree
University of Science and Technology Houari Boumediene (USTHB)
2017
Master's Degree
Bachelor's Degree
University of Science and Technology Houari Boumediene (USTHB)
2014
Bachelor's Degree

Check out Ishak's education

Ishak Hadjal

Software Engineer Team Leader

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