About me

Syrian-made software engineer with over 5 years of crafting web solutions across diverse markets—from the local Syrian scene, through the Arabian Gulf, to Europe's tech landscape. My passion lies in solving challenging problems efficiently, building scalable products, and delivering seamless experiences enjoyed by thousands.

My professional journey has spanned diverse domains and industries. At BeinMedia, I contributed to building dynamic restaurant solutions, including QR-based menu applications and point-of-sale systems. Most recently, at Newsifier, I led development efforts in the European market, working on newsletters, dataset management systems, and AI-driven content solutions. My focus was on enhancing performance and scalability to support millions of end-users.

What i'm doing

  • design icon

    Frontend development

    Building modern, responsive, and user-friendly web applications using React, Next.js, and Tailwind CSS.

  • Backend development icon

    Backend development

    Building robust, scalable, and efficient server-side solutions using Node.js, PHP, and Go.

Testimonials

  • Kamal Albatrani

    Kamal Albatrani

    I worked with Kheir Demashki for over two and a half years at Newsifier, the startup I help run as CTO, and I can say without hesitation that he’s one of those developers you're lucky to have on your team.

    Kheir is a true full-stack developer — equally comfortable working on the front end or back end — and quick to understand what needs to be built and how to approach it.

    He contributed to several key projects, including our newsletter system, real-time analytics, and AI integration. He also worked closely with me on system architecture and played a major role in shaping scalable solutions that continue to support Newsifier as we grow.

    Beyond his technical skills, Kheir is reliable, professional, and genuinely trustworthy. He was always willing to step in — even during high-pressure situations — and consistently proved to be someone the team could count on.

  • Mohammad Shaker

    Mohammad Shaker

    Kheir was the go-to React prototyper at SpatialX. He was the main engineer who owned the work on our Pathology Image Canvas and turned it into working MVP in days, not weeks. Consistently faster and more reliable than most people I worked with, Kheir delivers proof-of-concepts that actually ship.
    He's straight talker, adaptable, and dependable. I would hire him again.

Resume

Education

  1. Damascus University

    2014 — 2019

    Completed a five-year degree in Computer Science and Software Engineering with distinction (80%), gaining strong foundations in programming, data management, system analysis, and web development. Gained hands-on experience through team projects using Agile, and developed advanced programming skills under tight deadlines.

Experience

  1. Full-Stack Engineer

    Centroid Solutions March 2025 — Present

    Designed and developed a high-performance CRM system for brokers using Node.js, React, and PostgreSQL, with seamless integration of trading platforms and third-party services. Implemented robust security protocols to safeguard sensitive financial and user data.

  2. Full-Stack Engineer

    Newsifier November 2022 — March 2025

    Led the development of scalable services and system integrations, including newsletter (SendGrid) and real-time traffic (Plausible.io) features. Automated content and client workflows through tools like NewsPilot and a Client Management System, streamlining publishing and onboarding. Improved PageSpeed by 30% for a Headless CMS, integrated AI-driven content suggestions with ChatGPT, and refactored core features for better performance and maintainability. Actively contributed to code reviews, testing, and system architecture in collaboration with the CTO to ensure scalable, high-quality solutions.

  3. Frontend Engineer

    SpatialX April 2024 — November 2024

    Developed an advanced Annotations Canvas module in React using OpenLayers, enabling drawing and editing with custom tools like brush and magic wand. Optimized performance with dynamic rendering and added support for handling up to 50,000 annotations efficiently.

  4. Full-Stack Engineer

    BeinMedia (Nmo.ai) July 2020 — November 2022

    Led core development initiatives for OkMenu, a digital menu platform used by hundreds of businesses across Kuwait and the GCC, contributing to major releases and UX improvements. Delivered and optimized key features for TimeViewer, a virtual consultation platform, ensuring smooth user interactions through full-stack development. Maintained high-quality standards by collaborating with cross-functional teams and applying modern web best practices across all projects.

  5. Frontend Engineer

    Medicus AI March 2020 — July 2020

    Developed a responsive Well-Being Quiz App for a leading German insurance company using **React**, delivering an interactive and user-friendly interface. Utilized **CSS3** and custom animations to enhance visual appeal and boost user engagement.

My skills

  • Node.js
    90%
  • React
    80%
  • PHP Laravel
    80%
  • PostgreSQL
    60%
  • Docker
    60%