Work history

An overview of the clients and organisations I've worked with throughout my career. I've had the pleasure of working with a varied range of organisations: from quick start ups to established enterprise organisations and agencies in between. Every type of organisation has taught me valuable lessons which I apply in my daily work.

  1. Joran is an independent software engineer

    Freelance

    As an independent engineer and technical leader I partner with organisations to bridge the gap between complex technical requirements and product delivery. I step into existing teams to accelerate delivery, audit workflows, or lay the architectural foundation for new digital products. Acting as a hands-on developer or a strategic advisor. With a focus on scalability, clean code, and frontend architecture, I bring cross-industry experience and a deep connection to the JavaScript and Vue.js ecosystem to every engagement.

  2. At Jumbo Tech Campus I led the team responsible for Kompas, the organisation's component library, defining its vision and guiding principles while driving adoption and contribution across design and engineering. I also built and managed a structural collaboration between Fontys University of Applied Sciences and Jumbo Tech Campus through Fontys InnovationLab, supervising students and bridging the gap between academia and industry. As an active conference speaker I represented Jumbo Tech Campus externally, sharing how the second-largest grocery chain in the Netherlands approaches team ownership, frontend architecture, and large-scale collaboration.

  3. At WPP Media (formerly: Greenhouse Group) I led frontend development of BAAS, a marketing analytics dashboard used across the Greenhouse Group to consolidate and act on campaign data. Working closely with the UX designer I helped shape a shared design language and drove iterative improvements to the product. Alongside this I coached students at Greenhouse Group Labs, a dedicated experimentation department exploring emerging technologies for real-world application.

  4. As a frontend consultant at Capgemini I advised clients and internal teams on architecture, tooling, and working methods across a range of projects. Sitting at the intersection of design, technology, and interaction, I contributed to both early-stage prototypes and iterative sprint deliveries — bringing a pragmatic, cross-disciplinary perspective to every engagement.

  5. As lead frontend engineer at ProRail I designed and built a responsive data portal presenting large volumes of technical information to end users. I owned the full frontend architecture, with the Angular application communicating via RESTful APIs hosted on Microsoft Azure.

  6. At the Ministry of Defence I developed internal digital tools using Angular and Bootstrap, established coding standards and workflow documentation, and supported the team's transition toward continuous integration practices.

  7. At The Cre8ion.Lab I grew from junior developer to a trusted technical lead over seven years, building and maintaining frontend solutions and an in-house CMS across a wide range of client projects. Beyond development I acted as a sparring partner for project managers, supervised interns, and managed external relationships — building the well-rounded foundation that shapes how I work today.

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Projects

Some achievements can be framed withing the scope of certain projects. I've listed some personal highlights in the overview below.

  1. Jumbo Front End Platform

    Jumbo Frontend Platform

    To unify Jumbo's fragmented eCommerce application landscape, I contributed to building the Front End Platform: a collection of subsystems delivering a consistent user interface across the customer journey while accelerating feature development and giving content editors greater autonomy over their domain.

    My role spanned advisory work on architectural guidelines, defining the philosophy of concern separation across subsystems, and onboarding new teams onto the platform in a developer advocate capacity. The platform also became the central topic of several of my conference speaking engagements.

  2. Web Color Tool

    Web Color Tool

    A lightweight developer utility I built to quickly visualise and convert colour values for use in CSS. Input a string of formatted colours and instantly see them rendered in a grid with multiple notation formats.

    A small tool that scratches a real developer workflow itch. Live at webcolortool.netlify.app.

  3. Jumbo Inspiration

    Jumbo Supermarkten

    Built the frontend platform enabling Jumbo's marketing team to independently launch campaigns and promotions, hereby educing time-to-publish for a new campaign to under one day, without requiring technical support.

    The platform uses Vue.js components with a strong focus on SEO and accessibility, integrated with Adobe Experience Manager for content management and a custom-built CloudAdmin platform for managing forms and flows.

  4. Jumbo Kompas

    Jumbo Supermarkten Kompas

    Kompas is Jumbo's organisation-wide design system, enabling an omnichannel experience across web and app. I joined as an advisor on development guidelines and maintenance strategy, then grew into the role of tech lead and co-owner of the component library alongside a design lead. In a small team we migrated the existing codebase into a single source of truth, established a collaboration model between designers and developers, and drove adoption across engineering teams throughout Jumbo Tech Campus.

  5. BAAS: Take control of your campaign

    Dashboard

    BAAS is the central marketing intelligence platform at Greenhouse Group, aggregating data from 15+ sources nightly and normalising it through a custom pipeline so campaign metrics can be compared across channels. Consulted daily by nearly all employees to inform campaign budgets, reach, and strategic decisions, it is the most business-critical tool in the organisation. I led frontend development in an autonomous Kanban team, collaborating closely with backend specialists to deliver new features and maintain the integrity of the dashboard experience.

  6. Doen Vandaag

    Adventure

    Doen Vandaag is a side project of mine which I've developed to stimulate parents of young children to find nice, active, educative and creative activities. Suggestions where based on smart assumptions such as weather, seasons and other events.

    This project allows for me to experiment with new techniques and features, such as a Google Assistant application, a native mobile app and web application.

  7. ProRail: Spoordata informatieportaal

    Prorail

    As lead frontend engineer I designed and built the architecture for the web portal "Railinformatie Portaal" aggregating documents and data from multiple existing systems into a single, searchable source of truth. The platform served a wide range of users: from contractors needing localised maintenance data in real time, to planners aggregating data for long-term infrastructure decisions. Built on Angular with RESTful APIs on Microsoft Azure.

  8. Ministry of Defense: Advance Passenger Information (API-3)

    Koninklijke Marechaussee

    Developed and improved features for a border control system (API-3) used by the Koninklijke Marechaussee to cross-reference passenger data against watchlists at air and sea ports.

    Beyond feature development I established a company-wide frontend standard: introducing automated tooling, documented guidelines, and workshops to align the broader development team on best practices.

  9. Orangebag.nl

    Orangebag.com

    Acted as project manager and technical advisor for Orangebag.nl's e-commerce platform, built end-to-end by The Cre8ion Lab. Drawing on deep knowledge of the system, customer, and end user, I advised on practical solutions with a focus on user experience and scalable automation across the full e-commerce flow from webshop to warehouse.

  10. Fair Play Casino: Gold Rush

    Fairplay Casinos Gold Rush

    Built a web application for Fair Play Casino enabling live draw generation and presentation at events. Also developed a companion platform allowing casino staff to issue and validate tickets via Android devices.

  11. Miscellaneous

    Melvin the Magical Mixed Media Machine

    During my agency years I worked across a wide variety of projects — festival websites for events including Festival Mundial, Extrema Outdoor, and Paaspop, as well as e-commerce platforms and corporate websites for major Dutch organisations.

    A personal highlight was a collaboration with Studio HeyHeyHey on Melvin the Magical Mixed Media Machine: a modular Rube Goldberg installation for Dutch Design Week 2011, where physical chain reactions were interwoven with digital interactions including live photography and social media integration.