Michel Weimerskirch

Career & Community

A tour through my career and the community work alongside it, most recent first.

Career

  1. 2023 – present

    BeFresh Full-stack developer

    Since December 2023 I have been a full-stack developer at BeFresh.

  2. 2021 – 2024

    Leap Consulting Co-founder

    In 2021 I co-founded a second company, focused on digitalisation consulting. Building on earlier projects, we analysed clients' processes, shaped digitisation strategies, ran feasibility studies and supported teams through the changes. I sold my shares in December 2024.

    • Analysis of existing processes and identification of gaps in already-digitised ones.
    • Feasibility studies and staged action plans, with hands-on support during implementation.

  3. 2013 – 2023

    Lightbulb Co-founder

    As the freelance workload grew, I co-founded the web agency Lightbulb with two colleagues. Over ten years I led development and software architecture, managed our developers, maintained company and customer servers, ran security reviews of third-party software and advised on digitalisation. I sold my shares to my co-founders and left at the end of November 2023.

    • A meal-kit delivery web app with a recipe editor that auto-calculates weekly ordering quantities from incoming orders.
    • A fully digital membership sign-up flow for the CMCM website.
    • The new LOD.lu online dictionary search engine.
    • The agency's internal billing system.

  4. 2009 – 2014

    Freelancing Independent web developer

    Straight out of university I went freelance. Having already worked for several companies, I had a steady stream of interesting projects from the start — handling acquisition, project management, invoicing and delivery, often alongside advertising agencies and freelance designers.

    • Backend for a multinational cinema group's site, with localised versions for Luxembourg, Belgium, the Netherlands and France, and fully automated publication of film schedules.
    • Digitised the ordering and production process for a Luxembourg bakery.
    • A communication platform for a start-up that publishes an article to a website, by email and to social networks at once.

  5. During university Computer Science, Software Engineering

    While studying Computer Science with a focus on Software Engineering, I worked on both open source and commercial projects. In 2005 I built Spellchecker.lu, an online spell-checking platform for Luxembourgish, and managed it until 2023. Holiday work at various companies added early experience in marketing and basic graphic design.

    • Tools for analysing, generating and maintaining word lists.
    • Plugins for OpenOffice.org, LibreOffice, Mozilla Thunderbird and other software.
    • An algorithmic fix for a Luxembourgish pronunciation rule (the “N-Rule”).
    • The online spell-checker itself, plus its ongoing maintenance.

  6. Before university

    Before university I built applications and websites in my spare time.

    • A dynamic, robust content management system, used across many websites over the years and still running today.
    • An application for managing cycling races, used for several years by several Luxembourgish clubs.

Community & Volunteering

  1. 2013 – present

    Code Club Luxembourg Volunteer mentor

    I have led weekly coding sessions for children aged 8 to 12 since September 2024, guiding them through creative programming projects and building their digital skills. I first contributed around the club's founding in 2013, helping at workshops and events whenever I could. I love making coding accessible and fun for young learners.

    Read about a recent season →

  2. 2025 – present

    Repair Café Frisange Volunteer

    At the Repair Café in Frisange, volunteers help visitors fix broken items instead of throwing them away. I have taken part twice so far since 2025.

Open Source

Since at least 2001 I have contributed to open source projects and published software of my own. Have a look at a selection of my open source work.