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Theo HolanderTH

Theo Holander

Fullstack Developer - NodeJS • Next.js • React

€600/day
3 projects
Strasbourg, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Theo

👋 I am Théo, a passionate full stack developer, specializing in Javascript technologies, with a solid 7 years of experience in web development. My professional journey has led me to hold front-end and full stack lead developer positions on certain missions, which has strengthened my versatility and my ability to follow projects from start to finish.

💼 Currently, as a front-end developer within a web agency, I contribute to the development of an e-commerce site for a luxury brand. A role in which I can express my passion for front-end development and user experience.

💪 My past experiences and personal curiosity have allowed me to master, among other things, Javascript, Typescript, React, Next.js, Node.js, HTML, CSS, TailwindCSS, MaterialUI, NestJS, MongoDB, Docker, and Kubernetes technologies.

🚀 My goal as a freelancer is to leverage this technical expertise acquired over the years to help companies bring their ideas and projects to life. Whether for one-off missions or longer-term collaborations, I am ready to take on new challenges.

🔧 If you are looking for a passionate full stack developer, capable of juggling the latest technologies while bringing an artistic touch to the front-end, do not hesitate to contact me. Together, we can create exceptional web experiences!

Looking forward to collaborating with you,
Théo
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Reflet Communication
    Frontend Developer
    DIGITAL AND IT
    July 2023 - Today (2 years and 11 months)
    Strasbourg, France
    Development of international e-commerce websites with high traffic for luxury product brands

    • Design, development, and maintenance of e-commerce platforms for luxury product brands, using modern technologies such as Next.js, TailwindCSS, and TypeScript.
    • Implementation of scalable technical solutions to handle high traffic volumes, while ensuring optimal performance and a fluid user experience through server-side and client-side rendering techniques.
    • Close collaboration with UX/UI teams to ensure a refined and intuitive design, respecting brand standards and meeting the expectations of international clients.
    • Optimization of site performance (loading times, SEO, accessibility), by applying modern web development practices, such as lazy loading, code splitting, and static asset management.
    • Development of advanced features such as dynamic content management via integrated CMS (Content Management System), allowing for quick and easy updates of products, promotions, and site content.
    • Ensuring compliance with security requirements, particularly secure online transactions and protection of sensitive user data.
    HTML5 CSS3 JavaScript Typescript React.js Next.js Material UI SCSS TailwindCSS Shadcn
  • Yamay
    Full Stack Developer
    November 2021 - July 2023 (1 year and 8 months)
    Strasbourg, France
    Development of a menu management platform for restaurants, bars, and hotels via QR code

    • Design and development of a mobile-first web platform allowing establishments (restaurants, bars, hotels) to provide digital access to their menu via a QR code.
    • Development of a mobile-first application allowing customers to access and view the establishment's menu smoothly and intuitively on their mobile devices.
    • Creation of a web application for establishment managers, allowing them to manage their establishment's information, update their menu content, and customize its appearance (e.g., colors, images, descriptions).
    • Development of a general administration application used by sales teams and customer service to manage establishment accounts, track performance, and provide effective customer support.
    • Implementation of a microservices-based architecture to manage all applications in a scalable and resilient manner. Each service (menu management, customization, administration, etc.) is independent, allowing for rapid and efficient scaling during peak loads.
    • Use of Docker containers, Kubernetes, and cloud infrastructure to ensure platform scalability, especially during periods of high demand (e.g., peak restaurant hours or special events).
    • Implementation of solutions for easy and quick menu management, with a user-friendly interface, while ensuring an optimal user experience and an interface adapted to all screen types.
    • Use of modern technologies to ensure optimal performance, rapid menu updates, and smooth data management.
    Node.js NestJs React.js Typescript Material UI Docker Kubernetes MongoDB RabbitMQ Google cloud CQRS Elasticsearch
  • DAVIDSON CONSULTING
    Senior Full-stack Developer
    October 2019 - November 2021 (2 years and 1 month)
    Strasbourg, France
    Leading a team of 8 senior and junior developers.
    • Development of a web application with data visualization and strong UX/UI constraints, in close collaboration with the UX/UI designer and data engineers.
    • Refactoring of the existing codebase and addition of several code quality tools (linter, unit tests, code review, continuous integration, etc.).
    • Implementation of the company's design system in a reusable component library.
    Vue.js SCSS Node.js GraphQL Jest Docker Kubernetes Jenkins

Reviews

5.0

Out of 1 rating

MikaelM

Mikael

Spherz GmbH

Reviewed on 5/6/2024

Very good first contact and very good first mission with Théo. Organized, meticulous, attentive to the client, proactive in resolving/overcoming potential blocking points. We would gladly work with Théo again.

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Education

  • Engineering Diploma in Computer Science and Geomatics, Computer Programming
    École Supérieure d'Ingénieurs Paris-Est Marne-la-Vallée, ESIPE.
    2019
    Diplome d'Ingenieurs Informatique et Géomatique, Programmation informatique
  • DEUST in Information Systems, Digital and Electronics, Electronics - Computer Science
    Université Pierre et Marie Curie (Paris VI)
    2016
    DEUST Systèmes d'Information, Numérique et Electronique, Electronique - Informatique

Skill set (26)

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