{"id":38009,"date":"2026-03-13T13:47:11","date_gmt":"2026-03-13T13:47:11","guid":{"rendered":"https:\/\/stedvantis.wpengine.com\/?post_type=case_studies&#038;p=38009"},"modified":"2026-03-13T18:51:28","modified_gmt":"2026-03-13T18:51:28","slug":"modernisierung-von-legacy-software-fuer-einen-fuehrenden-telekommunikationsanbieter-in-deutschland","status":"publish","type":"case_studies","link":"https:\/\/www.edvantis.com\/de\/case-studies\/modernisierung-von-legacy-software-fuer-einen-fuehrenden-telekommunikationsanbieter-in-deutschland\/","title":{"rendered":"Modernisierung von Legacy-Software f\u00fcr einen f\u00fchrenden Telekommunikationsanbieter in Deutschland"},"content":{"rendered":"\r\n<section class=\"header-home reset-bottom-margin\">\r\n\t<div class=\"container\">\r\n\t\t<a class=\"header-home-scroll-icon\" href=\"#our-service-scroll\"><\/a>\r\n\t\t<div class=\"header-home-wrapper\">\r\n\t\t\t<div class=\"header-home-text\">\r\n\t\t\t    \t\t\t\t<h1><span>Modernisierung von Legacy-Software<\/span> f\u00fcr einen f\u00fchrenden Telekommunikationsanbieter in Deutschland<\/h1>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"header-home-awards-wrapper\">\r\n\t\t\t\t\t<div class=\"header-home-awards-title\"><\/div>\r\n\t\t\t\t\t<div class=\"header-home-awards\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2020\/10\/frn-group-1.svg\" alt=\"\"\/>      \r\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n                \t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"header-home-image\">\r\n\t\t\t\r\n\t\t\t\t<picture>\r\n\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t  <source media=\"(min-width: 1170px) and (max-width: 1599.98px)\" srcset=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2020\/10\/Group-37026.png\" \/>\r\n\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t  <img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2020\/10\/Group-37026.png\" fetchpriority=\"high\" alt=\"\"\/>\r\n\t\t\t\t<\/picture>\r\n\t\t\t    \r\n\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n\n\n\t<section class=\"section-container case-study-categories reset-top-margin reset-bottom-margin\">\r\n\t\t<div class=\"container\">\r\n\r\n\t\t\t\t\t\t\t\t<ul class=\"list-unstyled block-content-list\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\r\n\t\t\t\t\t\t\t\t\t\t<h4>Service<\/h4>\r\n\t\t\t\t\t\t\t\t\t\t<p>Legacy Modernization<\/p>\r\n\t\t\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\r\n\t\t\t\t\t\t\t\t\t\t<h4>Industry<\/h4>\r\n\t\t\t\t\t\t\t\t\t\t<p>Media &amp; Telecom<\/p>\r\n\t\t\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<li>\r\n\t\t\t\t\t\t\t\t\t\t<h4>Standorte<\/h4>\r\n\t\t\t\t\t\t\t\t\t\t<p>Germany<\/p>\r\n\t\t\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/ul>\r\n\r\n\t\t<\/div>\r\n\t<\/section>\r\n\t\n\n\n<section class=\"section-container about-us-quick-numbers\">\r\n\t<div class=\"container\">\r\n\t    \t    <h2 class=\"section-title __line-left\"><span class=\"section-title__grid\"><span class=\"section-title__text\"><span>Edvantis unterst\u00fctzte den gr\u00f6\u00dften netzunabh\u00e4ngigen Telekommunikationsanbieter in Deutschland<\/span> bei der Modernisierung seiner Legacy-Codebasis und der Migration auf eine Microservices-Architektur.<\/span><\/span><\/h2>\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-list\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item\">\r\n\t\t\t\t\t    \t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/12\/Calendar.svg\" class=\"desktop-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"desktop-texts\">\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number counterBlock \">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/12\/Calendar.svg\" class=\"mobile-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number-val statValue\">12<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-text\">Monate f\u00fcr die Migration<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item\">\r\n\t\t\t\t\t    \t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/Clients.svg\" class=\"desktop-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"desktop-texts\">\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number counterBlock \">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/Clients.svg\" class=\"mobile-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number-val statValue\">2<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-text\">Edvantis-Spezialist*innen<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item\">\r\n\t\t\t\t\t    \t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/07\/data.svg\" class=\"desktop-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"desktop-texts\">\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number counterBlock \">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/07\/data.svg\" class=\"mobile-icon\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-number-val statValue\">16<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"about-us-quick-numbers-item-text\">migrierte Legacy-Services<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2358\" height=\"800\" sizes=\"auto, (max-width: 2358px) 100vw, 2358px\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1.png\" alt=\"\" class=\"wp-image-28575\" srcset=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1.png 2358w, https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1-300x102.png 300w, https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1-1024x347.png 1024w, https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1-768x261.png 768w, https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1-1536x521.png 1536w, https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/04\/DSC_7200-1-2048x695.png 2048w\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h2 class=\"wp-block-heading\">About the Client<\/h2>\n\n\n\n<p>Die <a href=\"https:\/\/www.freenet.ag\/\">Freenet Group<\/a> ist der gr\u00f6\u00dfte netzunabh\u00e4ngige Telekommunikationsanbieter in Deutschland und bedient 8,3 Millionen Abonnent*innen mit Telekommunikations-, Breitband-, Web-, Media- und TV-Diensten. Das operative Gesch\u00e4ft wird von vier Kernmarken getragen: Mobilcom-debitel \u2013 einer der gr\u00f6\u00dften Mobilfunkanbieter Europas. GRAVIS \u2013 autorisierter Apple-Reseller in Deutschland. Klarmobil.de \u2013 ein Mobile Virtual Network Operator (MVNO) mit g\u00fcnstigen Tarifmodellen. Freenet.de \u2013 Anbieter von kostenlosen E-Mail- und Cloud-Services.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Herausforderung<\/h2>\n\n\n\n<p>Als innovativer Marktf\u00fchrer erkannte die Freenet Group fr\u00fchzeitig die Notwendigkeit, ihre bestehenden Legacy-Codebasen zu modernisieren. Die urspr\u00fcnglichen Systeme basierten auf Java 6 sowie JBoss (WildFly)-Applikationsservern und entsprachen nicht mehr den aktuellen gesch\u00e4ftlichen und technologischen Anforderungen.<\/p>\n\n\n\n<p>Zur Unterst\u00fctzung wurden Edvantis Engineers mit fundierter Erfahrung in Spring Boot, Java 11 sowie in Mono- und Flux-Bibliotheken ausgew\u00e4hlt, um Freenet bei der Modernisierung der Systemlandschaft zu begleiten.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ziele<\/h2>\n\n\n\n<p>Die Zusammenarbeit mit Edvantis verfolgte folgende zentrale Ziele:<\/p>\n\n\n\n<ul class=\"wp-block-list columns\">\n<li>Erhalt der bestehenden Gesch\u00e4ftslogik aller Anwendungen<\/li>\n\n\n\n<li>Migration der Anwendungen auf Java 11 und das Spring-Boot-Framework<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00f6sung<\/h2>\n\n\n\n<p>Das Edvantis-Team migrierte und portierte innerhalb von 12 Monaten insgesamt 16 Legacy-Services vollst\u00e4ndig auf die neue Infrastruktur.<\/p>\n\n\n\n<p>Zentrales Ziel w\u00e4hrend der Migration war es, die bestehende Gesch\u00e4ftslogik aller Anwendungen vollst\u00e4ndig zu erhalten, um operative Unterbrechungen zu vermeiden.<\/p>\n\n\n\n<p>Im Rahmen der Legacy-Modernisierung setzte das Engineering-Team unter anderem folgende Ma\u00dfnahmen um:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Refactoring des Codes und Verbesserung der Codequalit\u00e4t im Zuge der Umstellung auf Java 11<\/li>\n\n\n\n<li>Aktualisierung veralteter Bibliotheken unter Nutzung der Funktionen von Spring Boot<\/li>\n\n\n\n<li>Einsatz eines reaktiven Ansatzes zur Systemmodernisierung und Unterst\u00fctzung bei der Migration zu einer zukunftssicheren Microservices-Architektur auf Basis von Java 11<\/li>\n<\/ul>\n\n\n\n<p>Im Rahmen der QA-Services lieferte Edvantis zus\u00e4tzlich:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Code-Coverage-Reports, um sicherzustellen, dass die migrierte Gesch\u00e4ftslogik vollst\u00e4ndig durch Tests abgedeckt ist<\/li>\n\n\n\n<li>Integrationstests, um auszuschlie\u00dfen, dass durch die Migration neue Fehler entstanden sind<\/li>\n\n\n\n<li>Statische Code-Analysen, um die Codequalit\u00e4t zu \u00fcberpr\u00fcfen und die Deploy-F\u00e4higkeit sicherzustellen<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ergebnisse<\/h2>\n\n\n\n<p>\u00dcber einen Zeitraum von 12 Monaten unterst\u00fctzte Edvantis die Freenet Group bei der Modernisierung ihrer Systemlandschaft, indem veraltete Anwendungen in eine zukunftsf\u00e4hige Infrastruktur \u00fcberf\u00fchrt wurden. Die Migration auf eine Microservices-Architektur versetzte Freenet in die Lage, effizient zu skalieren, wachsende Gesch\u00e4ftsanforderungen zu erf\u00fcllen und ihre Wettbewerbsf\u00e4higkeit langfristig zu sichern.<\/p>\n\n\n\n<p>Durch die reibungslose Umsetzung ohne operative Unterbrechungen verf\u00fcgt Freenet nun \u00fcber die notwendige Agilit\u00e4t und Stabilit\u00e4t, um Innovationen voranzutreiben und ihre f\u00fchrende Marktposition weiter auszubauen.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><section class=\"section-container case-study-quote  reset-top-margin reset-bottom-margin\">\r\n\t<div class=\"about-us-who-we-lead-container\">\r\n\t\t<div class=\"row\">\r\n\t\t\t\t<div class=\"about-us-who-we-lead-container-text\">\t\r\n                    <div class=\"lead-info\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-image\"><img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2021\/01\/Group-7563-5-e1759939455476-300x300-1.webp\" alt=\"Thomas Reimann\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"lead-text-info\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__name\">Thomas Reimann<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__position\">Division Head Billing and Backend, Freenet Group <\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\t\t\t    \r\n\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__description\">\r\n\t\t\t\t\t\t<p>Die Professionalit\u00e4t und der Entwicklungsansatz von Edvantis sorgen bisher f\u00fcr eine sehr positive Zusammenarbeit \u2013 ebenso wie die Geschwindigkeit und Genauigkeit der Umsetzung.<\/p>\n\t\t\t\t\t\t\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n<\/div>\n<\/div>\n\n\n<section class=\"section-container clients-slider __container-space clients-list __white reset-top-margin reset-bottom-margin\">\r\n\t<div class=\"container\">\r\n\t\t<div class=\"clients-slider-header\">\r\n\t\t\t<h2 class=\"section-title\"><span class=\"section-title__grid\"><span class=\"section-title__text\">Eingesetzte <span>Technologien<\/span><\/span><\/span><\/h2>\r\n\t\t\t\t\t<\/div>\r\n\t\t<div class=\"section-description\">\r\n\t\t\t<p>Java 11, Spring \u2013 eingesetzt f\u00fcr Backend-Modernisierung, Code-Refactoring und die Transformation der Systeminfrastruktur.<\/p>\n\t\t<\/div>\r\n\t<\/div>\r\n\t<div class=\"container\">\r\n\t\t<div class=\"list-body\">\r\n\t\t\t<div class=\"swiper-container clients-slider-list\">\r\n\t\t\t\t<div class=\"swiper-wrapper clients-slider-list-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide clients-slider-list-item\" >\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"clients-slider-list-item-logo\" style=\"background-image: url('https:\/\/www.edvantis.com\/wp-content\/uploads\/2023\/10\/49.svg')\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide clients-slider-list-item\" >\r\n\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"clients-slider-list-item-logo\" style=\"background-image: url('https:\/\/www.edvantis.com\/wp-content\/uploads\/2025\/01\/MOLECULER-20.svg')\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\t\r\n<\/section>\r\n\n\n\r\n<section class=\"section-container payments-testimonial about-us-who-we-lead \">\r\n\t<div class=\"about-us-who-we-lead-container\">\r\n\t\t<div class=\"row\">\r\n\t\t\t<div class=\"about-us-who-we-lead-container-text\">\r\n\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__description\">\r\n\t\t\t\t\t\tEdvantis has intelligent people on board, competent and ready to get the job done. Their professionalism and approach has made for a good experience thus far.\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<div class=\"about-us-who-we-lead-container-footer no-link\">\r\n\t\t\t\t\t\t\t\t\t\t\t    <div class=\"lead-info\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-image\"><img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2021\/01\/Group-7563-5-e1759939455476-300x300-1.webp\" alt=\"Photo\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"lead-text-info\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"clients-testimonials-list-item__vote__stars\" style=\"--data-testimonial-score: 5\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__name\">Thomas Reimann<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"about-us-who-we-lead-container-text__position\">Head of Billing &#038; Backend, Freenet Group<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n                    \r\n\r\n\t\t\t\t\t            <\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"84\" height=\"60\" viewBox=\"0 0 84 60\" fill=\"none\" class=\"quote-mark\">\r\n\t<g opacity=\"0.3\">\r\n\t<path d=\"M48.6142 0L32.477 35.0274L24.6824 51.9401L20.9682 60H0L8.6156 41.004L15.9779 24.7261L27.191 0H48.6142Z\" fill=\"white\"\/>\r\n\t<path d=\"M83.9999 0L67.8628 35.0274L60.0682 51.9401L56.3539 60H35.3857L44.0013 41.004L51.3637 24.7261L62.5768 0H83.9999Z\" fill=\"white\"\/>\r\n\t<\/g>\r\n\t<\/svg>\r\n\t\r\n\t<div class=\"about-us-who-we-lead-quote-sign\">\r\n\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"238\" height=\"170\" viewBox=\"0 0 238 170\" fill=\"none\">\r\n\t\t\t<g opacity=\"0.3\">\r\n\t\t\t<path d=\"M137.74 0L92.0182 99.2443L69.9336 147.164L59.4099 170H0L24.4109 116.178L45.2708 70.0572L77.0412 0H137.74Z\" fill=\"white\"\/>\r\n\t\t\t<path d=\"M238 0L192.278 99.2443L170.193 147.164L159.67 170H100.26L124.671 116.178L145.531 70.0572L177.301 0H238Z\" fill=\"white\"\/>\r\n\t\t\t<\/g>\r\n\t\t<\/svg>\r\n\t<\/div>\r\n<\/section>\r\n\n\n<section class=\"section-container __container-space case-studies-slider __white\">\r\n    <div class=\"container title-container __without_button __without_description\">\r\n\t    \t\t<h2 class=\"section-title __line-left\"><span class=\"section-title__grid\"><span class=\"section-title__text\">Weitere Erfolgsgeschichten,\u00a0<span>die Sie interessieren k\u00f6nnten <\/span> <\/span><\/span><\/h2>\r\n\t\t\t\t\t\t<div class=\"slider-controls\">\r\n\t\t    \t\t\t<div class=\"contact-testimonials-list-navigation\">\r\n\t\t\t\t<div class=\"btn-slider-nav case-studies-navigation-btn-prev\" tabindex=\"-1\" role=\"button\" aria-label=\"Previous slide\" aria-controls=\"swiper-wrapper-410ef64925a72c989\" aria-disabled=\"true\">\r\n\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\">\r\n\t\t\t\t\t\t<circle cx=\"24\" cy=\"24\" r=\"23.5\" transform=\"matrix(-1 0 0 1 48 0)\" stroke=\"#CFCFCF\"><\/circle>\r\n\t\t\t\t\t\t<path d=\"M29.6569 24.3431H18.3431M18.3431 24.3431L24 18.6863M18.3431 24.3431L24 30\" stroke=\"#24BD59\" stroke-width=\"2\"><\/path>\r\n\t\t\t\t\t<\/svg>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"btn-slider-nav case-studies-navigation-btn-next\" tabindex=\"0\" role=\"button\" aria-label=\"Next slide\" aria-controls=\"swiper-wrapper-410ef64925a72c989\" aria-disabled=\"false\">\r\n\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"48\" height=\"48\" viewBox=\"0 0 48 48\" fill=\"none\">\r\n\t\t\t\t\t\t<circle cx=\"24\" cy=\"24\" r=\"23.5\" stroke=\"#CFCFCF\"><\/circle>\r\n\t\t\t\t\t\t<path d=\"M18.3431 24.3431H29.6569M29.6569 24.3431L24 18.6863M29.6569 24.3431L24 30\" stroke=\"#24BD59\" stroke-width=\"2\"><\/path>\r\n\t\t\t\t\t<\/svg>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n        <\/div>\t\t\r\n    <\/div>\r\n        <div class=\"container slider-container\">\r\n        <div class=\"case-studies-slider-block swiper-container\">\r\n            <div class=\"swiper-wrapper\">\r\n                                <div class=\"swiper-slide\">\r\n                    <div class=\"slide-container\">\r\n                        <article class=\"read-more-about-it--article case-study-item\">\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__image\">\r\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/softwareentwicklung-und-legacy-modernisierung-fuer-eine-bewertungsplattform\/\" target=\"_blank\">\r\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/10\/Group-39811.png\" alt=\"Softwareentwicklung und Legacy-Modernisierung f\u00fcr eine Bewertungsplattform illustration\"\/>\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__info\">\r\n\t\t\t\t\t\t\t\t<h4 class=\"read-more-about-it--article__info-title\"><a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/softwareentwicklung-und-legacy-modernisierung-fuer-eine-bewertungsplattform\/\" target=\"_blank\" class=\"read-more-about-it--article__info-title-link\">Softwareentwicklung und Legacy-Modernisierung f\u00fcr eine Bewertungsplattform<\/a><\/h4>\r\n\t\t\t\t\t\t\t\t<div class=\"article-item-bottom\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"article-item-bottom__categories\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Legacy Modernization<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Software &amp; Hi-Tech<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item desktopOnly\">United States<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/article>\r\n                    <\/div>\r\n                <\/div>\r\n                                <div class=\"swiper-slide\">\r\n                    <div class=\"slide-container\">\r\n                        <article class=\"read-more-about-it--article case-study-item\">\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__image\">\r\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/anwendungsmodernisierung-und-entwicklung-fuer-eine-fuehrende-e-commerce-plattform\/\" target=\"_blank\">\r\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2023\/07\/Frame-39596.png\" alt=\"Anwendungsmodernisierung und -entwicklung f\u00fcr eine f\u00fchrende E-Commerce-Plattform illustration\"\/>\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__info\">\r\n\t\t\t\t\t\t\t\t<h4 class=\"read-more-about-it--article__info-title\"><a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/anwendungsmodernisierung-und-entwicklung-fuer-eine-fuehrende-e-commerce-plattform\/\" target=\"_blank\" class=\"read-more-about-it--article__info-title-link\">Anwendungsmodernisierung und -entwicklung f\u00fcr eine f\u00fchrende E-Commerce-Plattform<\/a><\/h4>\r\n\t\t\t\t\t\t\t\t<div class=\"article-item-bottom\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"article-item-bottom__categories\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Legacy Modernization<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Ecommerce<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item desktopOnly\">United States<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/article>\r\n                    <\/div>\r\n                <\/div>\r\n                                <div class=\"swiper-slide\">\r\n                    <div class=\"slide-container\">\r\n                        <article class=\"read-more-about-it--article case-study-item\">\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__image\">\r\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/verbesserung-eines-cloud-infrastruktur-managementsystems-durch-automatisierung-ki-und-microservices\/\" target=\"_blank\">\r\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2023\/08\/investment-ecommerce-online-sale-concept-digital-market-background-business-man-use-mobile-app-1.png\" alt=\"Verbesserung eines Cloud-Infrastruktur-Managementsystems durch Automatisierung, KI und Microservices\u00a0 illustration\"\/>\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__info\">\r\n\t\t\t\t\t\t\t\t<h4 class=\"read-more-about-it--article__info-title\"><a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/verbesserung-eines-cloud-infrastruktur-managementsystems-durch-automatisierung-ki-und-microservices\/\" target=\"_blank\" class=\"read-more-about-it--article__info-title-link\">Verbesserung eines Cloud-Infrastruktur-Managementsystems durch Automatisierung, KI und Microservices\u00a0<\/a><\/h4>\r\n\t\t\t\t\t\t\t\t<div class=\"article-item-bottom\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"article-item-bottom__categories\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Cloud<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Software &amp; Hi-Tech<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item desktopOnly\">United States<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/article>\r\n                    <\/div>\r\n                <\/div>\r\n                                <div class=\"swiper-slide\">\r\n                    <div class=\"slide-container\">\r\n                        <article class=\"read-more-about-it--article case-study-item\">\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__image\">\r\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/modernisierung-von-remote-panel-software-fuer-einen-globalen-hersteller-von-energiesteuerungssystemen\/\" target=\"_blank\">\r\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2025\/03\/control-panel-case-study.png\" alt=\"Modernisierung von Remote-Panel-Software f\u00fcr einen globalen Hersteller von Energiesteuerungssystemen illustration\"\/>\r\n\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<div class=\"read-more-about-it--article__info\">\r\n\t\t\t\t\t\t\t\t<h4 class=\"read-more-about-it--article__info-title\"><a href=\"https:\/\/www.edvantis.com\/de\/case-studies\/modernisierung-von-remote-panel-software-fuer-einen-globalen-hersteller-von-energiesteuerungssystemen\/\" target=\"_blank\" class=\"read-more-about-it--article__info-title-link\">Modernisierung von Remote-Panel-Software f\u00fcr einen globalen Hersteller von Energiesteuerungssystemen<\/a><\/h4>\r\n\t\t\t\t\t\t\t\t<div class=\"article-item-bottom\">\r\n\t\t\t\t\t\t\t\t\t<div class=\"article-item-bottom__categories\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">IoT<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item\">Manufacturing<\/span>\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"article-item-bottom__categories-item desktopOnly\">United 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decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/themes\/edvantis\/img\/inhtml\/Star.svg\" alt=\"star\" \/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/themes\/edvantis\/img\/inhtml\/Star05.svg\" alt=\"half star\" \/>\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"author-name\">Dr. Torsten Schmale<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"author-position\">CEO &#038; Founder, Doc Cirrus<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t<div class=\"testimonial-text\">\r\n\t\t\t\t\t\t\t\t\t\tDoc Cirrus has been drawing on the expertise of Edvantis application engineers since 2016. They&#8217;ve truly become an extended workbench for our development team.\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"recognitions\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"h3-format\">Vertrauen uns:<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"logos-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/07\/Indeed.svg\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/07\/frn-group.svg\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.edvantis.com\/wp-content\/uploads\/2024\/07\/Bigcommerce.svg\" alt=\"\"\/>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n","protected":false},"featured_media":29493,"template":"","case-study-location":[218],"case-study-industry":[224],"case-study-service":[246],"class_list":["post-38009","case_studies","type-case_studies","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Modernisierung von Legacy-Software f\u00fcr einen f\u00fchrenden Telekommunikationsanbieter in Deutschland - Edvantis<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.edvantis.com\/de\/case-studies\/modernisierung-von-legacy-software-fuer-einen-fuehrenden-telekommunikationsanbieter-in-deutschland\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modernisierung von Legacy-Software f\u00fcr einen f\u00fchrenden Telekommunikationsanbieter in Deutschland - Edvantis\" \/>\n<meta property=\"og:description\" content=\"About the Client Die Freenet Group ist der gr\u00f6\u00dfte netzunabh\u00e4ngige Telekommunikationsanbieter in Deutschland und bedient 8,3 Millionen Abonnent*innen mit Telekommunikations-, Breitband-, Web-, Media- und TV-Diensten. 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