Over deze freelancer
Senior Frontend Developer | React, Angular & Headless CMS | 20+ Jaar Ervaring
Over mij Welkom op mijn profiel! Ik ben Marnix, een gedreven Senior Frontend Developer met meer dan 20 jaar praktijkervaring. Vanuit mijn eigen onderneming ontwerp en bouw ik robuuste, schaalbare en razendsnelle webapplicaties. Waar junior developers zich puur focussen op code, ligt mijn kracht in het overzien van de architectuur en het feilloos vertalen van complexe business requirements naar ijzersterke technische oplossingen. Technologie is mijn passie; ook buiten werktijd ben ik altijd bezig met innovatie (zoals geavanceerde domotica via Home Assistant).
Wat ik voor u kan betekenen Of u nu een compleet nieuw platform wilt opzetten, een legacy-systeem wilt moderniseren, of een ervaren lead zoekt om uw (Agile/Scrum) development team te versterken: ik breng rust, overzicht en technische diepgang. Ik heb complexe trajecten in goede banen geleid voor sectoren waar veiligheid, performance en UX cruciaal zijn
Bewezen Track Record (Mijn eerdere projecten) Ik heb succesvolle applicaties en platformen gebouwd voor toonaangevende merken in diverse industrieën, waaronder Luchtvaar, Openbaar Vervoer, Verzekeringen & Financiën, Energie, E-commerce en Farmacie.
Opleiding
Werk & Ervaring
Atos delivers sovereign cloud capabilities across your entire adoption journey, tailored to meet your unique requirements for managing risk while achieving the benefits of cloud. Our framework ensures a consistent approach across edge, private and public cloud deployments, driven by a clear sovereign cloud strategy that we help you to create. Atos enables the mix of data, technical and operational sovereignty that is most appropriate to your needs, ensuring your sensitive data and cloud supply chain complies with your business regulations and risk mitigation requirements. Whether you’re using Atos' regional sovereign data center network, your own on-site edge locations or global hybrid ecosystems, Atos provides the tools and expertise to help you innovate securely with the latest AI technologies – without compromise.
Worked as part of the team building and evolving Transavia's digital booking platform. Contributed to the creation of the company's custom design system "Take Off UI" from the ground up, helping establish a scalable foundation of consistent, reusable components across the product. Played a part in migrating from Transavia's legacy CMS to a modern frontend microservices architecture using Next.js (React) in combination with a headless CMS, an effort that improved performance, maintainability, and developer velocity across the team. Collaborated on a full brand identity refresh to celebrate Transavia's 60th anniversary, bringing a renewed visual language to the customer-facing experience. Implemented the expansion of the platform's payment capabilities by integrating new methods including Oney (FR) and Klarna (NL), and contributed to shipping new features such as Lounge Access and Special Luggage booking.
When you travel abroad by train, your journey will be with NS International. This is the NS business unit that makes sure you can travel from any Dutch train station to over 3300 destinations throughout Europe. And it’s very easy. You book your tickets simply online for the Thalys, ICE International, Eurostar and TGV high-speed trains, as well as the Intercity trains to Brussels and Berlin.
Dorel Juvenile is home to a family of leading juvenile brands. All over the world, we Care for Precious Life: our products excel in safety, design and usability. So parents can fully enjoy their time with their children. Dorel Juvenile’s products are designed, manufactured and marketed under several brand names, including Safety 1st, Maxi-Cosi, Quinny and Tiny Love. Regional brands include Cosco, Infanti, Bébé Confort Mother's Choice and Voyage.
Reaxys and Reaxys Medicinal Chemistry combine experimental chemical data and essential literature with powerful search interfaces that provide rapid access to facts. They return relevant extracted chemical data and citations in response to chemistry questions. Both can seamlessly integrate into an existing environment of tools and systems, saving time and reducing the risk of inconsistencies.
De energiemarkt is vrij. Organisaties zijn niet langer overgeleverd aan het keurslijf van energieleveranciers. Zij hebben hun energie zelf in de hand. En kunnen daarmee aanzienlijk besparen op hun kosten of zelf profiteren van extra inkomsten en flexibiliteit! Powerhouse ontsluit de energiemarkt met het geavanceerd online Powerhouse Energy Platform. Klanten krijgen zo toegang tot alle belangrijke energiemarkten. Zij beheersen zelf de inkoop en verkoop van hun energie en kiezen dus voor een optimale inzet van hun productiemiddelen.
Through 'Mijn Essent Zakelijk' Essent's business customers have a daily insight in their energyconsumption. In this secure environment customers can see and adjust personal information, payment methods and contract adjustments, see their yearly invoice and personal tarifs, pending and paid or deducted bills. The main focus was integration of the Powerhouse platform in Essents branding for B2B customers.
Elsevier is a world-leading provider of information solutions that enhance the performance of science, health, and technology professionals, empowering them to make better decisions, and deliver better care. Techniques used: HTML5, CSS3, jQuery, Custom jQuery plugin development, Google Custom Search Element, Google Tagmanager Version control: Github, GitFlow Live link: https://www.elsevier.com/
InShared an initiative of Eureko - Achmea InShared is a 100% internet insurance company with a 100% self-service concept. InShared is stimulating the good behaviour of its clients and is willing to reward all measures taken to prevent damages and claims. InShared, a Dutch company introduced in January 2009, is the first insurer which guarantees refunding of surplus profits to its customers. The money that's been reserved for paying damages, but hasn't been used is paid back to the insured. The profits are paid to people who haven't made any damage claims, causing everyone to profit. To inform the insurees of the height of the profit, InShared is the first insurance company that makes it's premium-damage equation permanently public. On the site you can find exactly how much premium InShared has received in total and how much damage the insurer has had to pay. The figures are actualised each quarter. From the total income, InShared reserves 80% for paying damages; the remaining 20% are reserved for the company and potential losses. All the money in the 80% that's not used for damages goes back to the insured. The company is built as a platform which operates in close cooperation with its network partners. This Platform is scalable and can be used as a platform for future plans abroad. Due to this structure most costs are flexible and therefore the company is able to act fast according to the latest (technological) standards.
The desire to disrupt provides the fuel for transformation nowadays, propelling businesses towards the Digital era. We see it as a creative and highly conceptual process. We call it the Maker process. It transforms the known analogue scenario into a digital one, founded on human behavior and interaction. As a vast collaborative network of autonomous competence-driven units, we attract great Makers.This enables us to get the sharpest skills around the table: designers, interaction specialists, programmers, touch interface developers and video producers.
Based in Amsterdam, The Netherlands, IceMobile has developed itself into a leader in distribution of innovative mobile entertainment services and applications. IceMobile has developed micro billing connections with more than 100 mobile carriers worldwide. Direct telecom operator relationships and integrations via leading media companies, advertising agencies, internet portals and content aggregators make up its intricate network. IceMobile has extensive experience in bringing mobile entertainment products and services to the mobile marketplace, and is always looking to add new avenues in order to solidify its position in the market. Due to IceMobile's successes in bringing mobile content and applications to the market, more and more record labels, game developers and content developers are finding their way to IceMobile to allow their products access to a worldwide audience. Skills: Search Engine Optimization (SEO), CSS, +5 skills
Certificeringen
Portfolio
InShared New Responsive website and online damage report
Essent Unity - My Essent Business
Implementing Klarna and Oney Payment Methods - Transavia
Brand Identity Refresh - Transavia 60th Anniversary
Reviews
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Locatie Bussum
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Categorie Development & IT
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Geverifieerd Email, Telefoon
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Lid Sinds 29-03-2026