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Hussaifa SajjadHS

Hussaifa Sajjad

Fullstack Engineer

€350/day
Valencia, ES
3-7 years

Average response time: 1 hour

About Hussaifa

👋 Hey! I’m Hussaifa, a full-stack engineer with 6+ years of experience building scalable MVPs, custom web apps, and AI-powered automations that help startups launch fast and grow faster.

🚀 Whether you need to:

• Launch your MVP to secure funding
• Build a booking platform, dashboard, or e-commerce feature
• Automate your business with AI (chatbots, agents, workflows)

I bring a mix of product strategy, full-stack development, and execution speed to turn your idea into a working product — with clean code and a clear UX.

💼 What I’ve Delivered:

🏛 GovTech: Online fishing license portal for the Government of Gibraltar (+40% engagement)
🛍 E-Commerce: Real-time price comparison engine for a sneaker brand (+25% conversions)
🎙 Booking System: Music studio app with automated access control (+30% bookings)
💬 AI: Custom GPT chatbot for client FAQs and appointment booking

🧠 Tools & Stack:

• Frontend: React, Vue, Tailwind, Next.js
• Backend: Node.js, Supabase, Firebase
• AI & Automation: GPT-4, OpenAI, Dialogflow, Zapier, Make, Twilio

If you're looking for a reliable technical partner who can think beyond code and help you build, validate, and launch — let’s talk.

📅 Ready to get started? Click Invite to Job and let’s build something amazing.
  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • The Web Agency
    Co Lead
    DIGITAL AND IT
    January 2019 - Today (7 years and 5 months)
    Dubai - United Arab Emirates
    Delivered 15+ successful projects, spanning:
    • Government tech (e.g., Gibraltar fishing license portal – boosted engagement 40%)
    • E-commerce (e.g., real-time pricing engine for sneakers – +25% engagement)
    • Booking systems (e.g., music studio app with automated lock code emails – +30% bookings)
    • Custom Shopify experiences (e.g., ring builder with virtual try-on – +35% sales)
  • Opply
    Product Engineer
    DIGITAL AND IT
    March 2025 - Today (1 year and 3 months)
    Valencia, Spain
    • Revamped the product ordering process to maximize sales and buyer retentions.
    • I was responsible for planning, delivering and managing the teams to complete the project on time and with high quality.
    • I am currently leading another project in which we are developing merchant of record setup.
  • Opply
    Senior Frontend Engineer
    DIGITAL AND IT
    August 2023 - April 2025 (1 year and 8 months)
    London, UK
    🌟 Integrated Jest for comprehensive component and function testing, elevating code quality. Achieved 70% test coverage from an initial 0% through strategic implementation.

    🌟 Implemented the integration of Storybooks to comprehensively document all application components, resulting in improved development efficiency and streamlined collaboration.

    🌟 Championed and successfully executed the establishment of a mono-repo framework, enabling seamless sharing of components, styles, helper functions, and schema across multiple applications.

    🌟 Co-developed and shared a CLI-based automation tool to streamline user creation, inquiries, and quote generation processes, significantly accelerating testing efforts for both personal use and the QA team.

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Education

  • Bachelor of Science - BS
    Bahria University
    2020
    Bachelor of Science - BS

Skill set

Categories