Get in touch


We use HubSpot CRM to process and manage contact and information requests. Please accept the "Functional Cookies" and reload the page to load the contact form.

Collaboration as the success factor –
over 13 years of agility and innovation

Short time-to-market
for new features

thanks to microservice
architecture and agility

Outstanding customer satisfaction

thanks to customer self-care
and personalization

Consulting and
implementation at eye level

thanks to years of understanding
the business case

IT development partner to Germany’s most popular mobile network operator

Innovative thinking. Disruptive technologies. Agile methods. Close collaboration. Satisfied retail customers. As an IT development partner, AOE has supported the success of congstar, one of Germany’s most popular mobile network operators and the leading second brand from Deutsche Telekom, since 2008.

Of course, a lot has happened in the more than 13 years since beginning this strategic partnership – both in the telco market in general and in terms of technology, which was reflected repeatedly at different levels of the project. To better meet current requirements, the architecture of the e-commerce and sales solution was converted from monolith to microservices, for example, and the organization and structure of the development teams were adapted.

What remained constant: the agile collaboration as equals, the satisfaction of congstar's customers (the trade magazine connect recently recognized congstar as “mobile provider of the year” for the eleventh year running), and the aspiration to always tailor products, solutions, and features to the needs of the users. congstar and AOE have always been a perfect match when it comes to their methods and company cultures.

The result is a collaboration in which both sides have the necessary grasp of the brand and its business objectives to scrutinize future ideas and approaches critically – and tackle future challenges ideally with combined expertise.

Get instant access to the rest of the content

Before you continue, we would be happy to get a few details about you and your company.


We use HubSpot CRM to process and manage contact and information requests. Please accept the "Functional Cookies" and reload the page to load the contact form.