Matthias. Büttner.

Responsible for the technical planning and coordination of the execution of departmental tasks and communication and coordination with other departments. Mainly responsible for the technical design and development of the highly available and scalable Apis in a hybrid cloud environment for the internally developed web and mobile applications. Tech-Stack: Java, AWS, Docker, Kubernetes, MicroServices, SOA, Spring(Boot), ElasticSearch, Postgres, Kibana

Responsibility for - technical design & development of the highly available & scalable Apis in a cloud environment across multiple regions/zones (Europe, US, Asia) for the in-house developed mobile applications (iOS, Android) and the internal CMS system. - technical conception & development of the internal content management system & mainly responsible for data migration and consolidation from different data sources. - design & migration of the existing infrastructure into a hybrid cloud environment

Responsible for - conception and further development of the e-commerce platform consisting of self-developed shop systems, white-label shops, back-end application, as well as for the system interfaces for all integrations. - conception and further development of all operational workflows within the supply chain as well all monitoring and tracking systems. - further development of the CI/CD, as well as the test and staging environments - prioritization of incidents in daily business. Stack: Java6

Responsible for conception, development and testing of a highly available visitor tracking application in a cloud environment. Tech-Stack: Java6, AWS(EC2,S3,RDS,SQS), MySql, Tomcat Co-responsible for technical conception and development as well as administration and error analysis of live operation a highly available, scalable acquisition engine in a cloud environment. Tech-Stack: Java6, AWS, jBPM, MySql, Tomcat, Hudson

Co-responsible for the development and optimization of all web services of the company's own CMS infrastructure in terms of performance, database consistency and scalability. Tech-Stack: Java5/JEE, jBPM, Apex, AWS, Lucine, memcache, Oracle, jBoss, JMeter Significantly responsible for the new development of the company's own license management of the entire product catalog. Tech-Stack: PL/SQL, Apex, Oracle

Co-responsible for the technical conception of new features, new and further development of complex IT solutions of a highly frequented dating portal (iLove) with test-driven development within the agile development process SCRUM. Tech-Stack: Java5/JEE, Javascript, JSF, Oracle, BEA WebLogic, Melin, PHP https://www.ilove.de

Software development of dynamic e-commerce websites for the Jamba community portal. Tech-Stack: Java1.4, Struts, JSP, HTML, CSS, JavaScript http://www.jamba.de

Software development of dynamic websites, and e-commerce features, as well as systematic and automated testing. Tech-Stack: Java1.4, Struts, JSP, HTML, CSS, Selenium