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Montassar S.MS

Montassar S.

Software Engineer & Full Stack - UI/UX - Wordpress

€150/day
Sfax, TN
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Montassar

How I can help you:
I assist companies and e-merchants in creating high-performing web and mobile platforms. My role is to transform your business needs into scalable technical solutions, ensuring a fluid user experience and a robust infrastructure. Whether for launching an MVP or optimizing an existing architecture, I am involved in the entire lifecycle of your project.

My added value:
What sets me apart is my dual expertise as a Lead Developer and DevOps engineer. Unlike a classic developer, I don't just write code: I design distributed systems capable of handling high loads while automating deployments to reduce your time-to-market. My mastery of UI/UX on Figma also allows me to ensure total consistency between the design and the final product.

Types of projects and deliverables:
  • E-commerce: Development and maintenance of PrestaShop stores and custom WordPress sites (specific themes and plugins).
  • Web & Mobile Applications: Full-Stack Development (React, Next.js, Node.js) and cross-platform mobile applications with Flutter.
  • DevOps & Cloud: Performance audits, containerization via Docker/Kubernetes, and CI/CD pipeline implementation.
  • Usual deliverables: Audited code, complete technical documentation, high-fidelity prototypes, and performance optimization reports.

Languages and availability:
IELTS 7.5 certified (C1 level English), I work daily with international clients. I am available for remote or hybrid missions, with an Agile methodology approach for full transparency on your project's progress.
  • Arabic

    Native or bilingual

  • English

    Fluent

  • French

    Conversational

Can work on-site
Sfax (up to 50km)

Experience

  • Group ZEN
    Development Lead
    E-COMMERCE
    August 2025 - Today (1 year)
    Sfax, Tunisia
    • • Architected a microservices-based multi-tenant B2B marketplace from zero to production, leading a team of 7-10 engineers across React 18, Angular 19, Node.js, TypeScript, and PostgreSQL.
    • • Achieved 99.9% uptime and 79.96% reduction in search latency within 3 months using Meilisearch and Elasticsearch, scaling to 13 suppliers, 31 distributors, 56 retailers, 100+ freelancers, and 61 dropshippers.
    • • Designed and owned full CI/CD pipelines (GitHub Actions, Docker, Kubernetes), automated deployments, and enforced security and performance monitoring across all environments.
    • • Engineered RESTful APIs, GraphQL endpoints, and real-time WebSocket features consumed by web and mobile clients; integrated n8n for workflow automation.
    • • Conducted regular code reviews and mentored junior developers on TypeScript best practices, design patterns, and clean architecture principles.
    • • Drove Agile/Scrum ceremonies, sprint planning, and stakeholder reporting using Jira, consistently delivering on time.
    Agile Project Management CI/CD Management Mobile Application Microservices Architecture
  • SUNEVIT
    Full-Stack Developer
    TECH
    September 2022 - September 2025 (3 years)
    Sfax, Tunisia
    • • Delivered 30+ client projects end-to-end across web, mobile, e-commerce, and UI/UX - respecting deadlines across a 3-year agency track record.
    • • Web Development: Built custom web applications and RESTful APIs using React, Angular, Vue.js, Node.js, Laravel, and Symfony across diverse industries and client types.
    • • Mobile (Android & iOS): Developed cross-platform apps (Flutter, React Native) with Firebase and REST API integrations, shipped to production on both platforms.
    • • WordPress & PrestaShop: Developed custom plugins and responsive business sites optimised for performance, accessibility, payment integrations, and SEO optimisation
    • • UI/UX & Graphic Design: Designed wireframes, prototypes, and brand assets in Figma, Photoshop, and Illustrator; owned end-to-end visual delivery for client-facing products.
    Wordpress UI/UX Design Mobile Application Mobile App Deployment
  • SUNEVIT
    Software Engineering Intern - Engineer's Degree
    TECH
    February 2025 - July 2025 (5 months)
    Sfax, Tunisia
    • Designed and built the intelligent B2B multi-tenant e-commerce platform that became the foundation of the Group ZEN product - covering supplier, franchise, and stock management (MEAN, TypeScript, PostgreSQL, Docker, Kubernetes, n8n).
    • Built automated data pipelines and Power BI dashboards, enabling real-time supply chain performance analysis, cutting manual
    reporting time for the operations team.
    Fullstack ERP Integration with External Systems Data Integration CI/CD Management Wordpress

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Education

  • Bachelor's Degree
    Univer Tex
    Bachelor's Degree
  • Engineer's Degree
    International Institute of Technology
    2025
    Engineer's Degree

Skill set

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