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Hi, I’m Khalil Aly, a full-stack engineer with 4+ years of shipping production web applications from backend to frontend. I enjoy turning complex data models into reliable, scalable systems and crafting elegant user experiences with Next.js and React. I own the full development lifecycle, from architecture and performance tuning to release engineering and open-source contributions. I love collaborating on cross-functional teams and turning ambitious ideas into solid software.…Hi, I’m Khalil Aly, a full-stack engineer with 4+ years of shipping production web applications from backend to frontend. I enjoy turning complex data models into reliable, scalable systems and crafting elegant user experiences with Next.js and React. I own the full development lifecycle, from architecture and performance tuning to release engineering and open-source contributions. I love collaborating on cross-functional teams and turning ambitious ideas into solid software.

Khalil Aly

Full Stack Developer, Web Developer, Front-End Developer, +2

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Hi, I’m Khalil Aly, a full-stack engineer with 4+ years of shipping production web applications from backend to frontend. I enjoy turning complex data models into reliable, scalable systems and crafting elegant user experiences with Next.js and React. I own the full development lifecycle, from architecture and performance tuning to release engineering and open-source contributions. I love collaborating on cross-functional teams and turning ambitious ideas into solid software.…Hi, I’m Khalil Aly, a full-stack engineer with 4+ years of shipping production web applications from backend to frontend. I enjoy turning complex data models into reliable, scalable systems and crafting elegant user experiences with Next.js and React. I own the full development lifecycle, from architecture and performance tuning to release engineering and open-source contributions. I love collaborating on cross-functional teams and turning ambitious ideas into solid software.

Available to hire

Hi, I’m Khalil Aly, a full-stack engineer with 4+ years of shipping production web applications from backend to frontend. I enjoy turning complex data models into reliable, scalable systems and crafting elegant user experiences with Next.js and React.

I own the full development lifecycle, from architecture and performance tuning to release engineering and open-source contributions. I love collaborating on cross-functional teams and turning ambitious ideas into solid software.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Arabic

Fluent

Work Experience

Full-Stack Engineer (Freelance) at Hermosa

October 1, 2025 - March 1, 2026

Built an end-to-end booking platform (Next.js, MySQL, Redis/BullMQ, JWT) that replaced a manual Excel operation—eliminating double bookings, missed reservations, and uneven staff load. Engineered a constraint-based scheduling engine resolving shift, break, absence, and specialization conflicts in real time, with a fair auto-assign algorithm. Implemented an automated reservation lifecycle: instant confirmation of paid bookings and auto-release of abandoned held slots. Designed a 4-tier RBAC across 200+ services with WhatsApp transactional notifications. Packaged the app as a cross-platform mobile build (Capacitor, iOS/Android) and deployed with PM2 + Nginx for zero-downtime releases.

Teaching Assistant (Part-Time) at Islamic University of Gaza

January 1, 2025 - Present

Led hands-on Advanced Python labs for 400+ students; mentored on algorithms, data structures, and clean coding. Evaluated technical implementations and fostered structured engineering thinking.

Co-Founder & Full-Stack Engineer at Lousin (Multi-Tenant SaaS Platform)

January 1, 2023 - January 1, 2025

Co-founded a multi-tenant Discord-bot management SaaS with 300+ frontend modules and real-time backend systems. Owned full frontend architecture and core real-time backend, collaborating in Agile GitHub Projects. Built a real-time WebSocket notification system, designed a weighted behavioral scoring engine for adaptive user segmentation, and addressed multilingual data consistency at the API layer. Delivered CI/CD pipelines and an in-house CMS.

Co-Founder & Full-Stack Engineer at Lousin

January 1, 2023 - January 1, 2025

Co-built a multi-tenant Discord-bot management SaaS (300+ frontend source modules) used by real users; owned the full frontend architecture and real-time backend systems. Built a real-time WebSocket notification system from scratch and designed a weighted behavioral-scoring engine to drive adaptive user segmentation. Resolved multi-language data consistency at the API layer with an extensible CMS and store system. Shipped with a CI/CD pipeline (lint/build/test + auto-issue creation on failure) and delivered a robust, scalable platform.

Web Developer at Koya Aluminium

August 1, 2021 - August 1, 2023

Built and maintained the corporate web presence end-to-end, including performance optimization and critical issue resolution. Automated validation of 2,000+ records via regex and custom scripting, collaborating with a 7-member cross-functional team.