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Simon S.SS

Simon S.

Senior Fullstack Engineer | PHP/Symfony/Node.js

€600/day
Kreuzlingen, CH
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Simon

Senior Fullstack Software Developer with over 15 years of experience in developing robust and scalable web applications – specializing in PHP, Symfony, API Platform, MySQL, Node.js, and Docker. I support companies in developing clean and maintainable backend architectures – with a focus on quality, stability, and teamwork.

I am a true team player who enjoys working in agile teams (Scrum, Kanban), regularly conducts code reviews, and is committed to clean, tested code following SOLID and Clean Code principles. Tools like PHPUnit, Behat, GitLab CI/CD, and Docker are part of my daily routine.

Additionally, I bring experience in frontend with Vue.js, React, Tailwind, and Bootstrap, and enjoy thinking holistically about the product. I have developed demanding platforms for clients such as Swisscom (Localcities), Migros, and SRF, among others – from architecture to live operation.

I work 100% remotely, self-organized, and with a high standard of quality and communication.

Selected Projects:
– Localcities.ch (Swisscom): Symfony platform for aggregating and displaying data from all Swiss municipalities, including all events and associations in Switzerland. Implementation of microservices with API Platform, MySQL, RabbitMQ, Docker, Redis
– For the client Migros: Symfony-based sweepstake modules (Memory, Advent calendar, etc.) with up to 300,000 participants, integration via iFrame into CMS.
– for the energy provider EnBw: Web app for displaying room temperatures & energy consumption. Data visualization with Chart.js, backend with Symfony & EasyAdmin.
– For the luxury carpet dealer Object Carpet: Implementation of a B2B portal, a long-term active Symfony platform with customer registration, CMS integration, and dealer management.
  • German

    Native or bilingual

  • English

    Fluent

  • French

    Conversational

  • Spanish

    Basic

  • Russian

    Basic

Remote only
Primarily works remotely

Experience

  • Centerboard AG,
    Application Developer
    DIGITAL AND IT
    January 2025 - February 2025 (1 month)
    Basel, Switzerland
    Development of the school administration system schulNetz using PHP (custom build framework), MSSQL and PostgreSQL
    PHP PostgreSQL SQL Server
  • YMC AG,
    Fullstack Software Engineer
    DIGITAL AND IT
    May 2015 - December 2024 (9 years and 7 months)
    Kreuzlingen, TG, Switzerland
    • Implementation of complex web projects for clients such as localsearch (Swisscom), Migros, and Swiss Television, with a strong focus on backend development (PHP/Symfony, Node.js, MySQL, GitLab, Docker) and frontend technologies (Vue.js, React, Tailwind, Bootstrap, jQuery)
    • Agile development, Scrum and direct client interaction
    PHP Symfony MySQL Gitlab Docker
  • YMC AG,
    Working Student – Software Engineer
    DIGITAL AND IT
    August 2009 - December 2014 (5 years and 4 months)
    Kreuzlingen, TG, Switzerland
    Part-time software engineering position (30%) while studying

    Main focus on PHP, ezPublish and frontend technologies

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Education

  • Master of Science in
    HTWG Konstanz
    2014
    Master of Science in
  • Bachelor of Science in
    HTWG Konstanz
    2013
    Bachelor of Science in

Skill set

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