1.0GMU Onlinehttps://gmu.online/enMartijn Roefshttps://gmu.online/en/author/martijnm7branding-com/rich600338<blockquote class="wp-embedded-content" data-secret="aWQqPEALGs"><a href="https://gmu.online/en/jobs/senior-react-developer/">Senior React Developer</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://gmu.online/en/jobs/senior-react-developer/embed/#?secret=aWQqPEALGs" width="600" height="338" title="“Senior React Developer” — GMU Online" data-secret="aWQqPEALGs" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://gmu.online/wp-includes/js/wp-embed.min.js </script>https://gmu.online/wp-content/uploads/2025/09/67dd74533d83bc1a78e00ac6_gmu_dev_tech.webp1478822At GMU, we develop groundbreaking, scalable SaaS solutions that make a real difference for eCommerce entrepreneurs. Our mission? To help webshops worldwide reliably and predictably optimize their profitability by fully automating Google Shopping, data feeds, and campaigns through our own proprietary platform and app.