Professional Experience
2024: Additional Certifications (Credly)
• AWS Certified Solutions Architect – Associate
• AWS Certified SysOps Administrator – Associate
• AWS Certified Developer – Associate
2020 : AWS Certified Solutions Architect Associate
2019: AWS Certified Cloud Practitioner
2017: Certified trainer for “Cultivating Emotional Balance” to teach mindfulness and emotional competence in the IT environment.
2017: Foundation of Andreas Wittmann IT-Beratung GmbH
2005- 2017: IT Consultant, Freelancer
1998 – 2005: BEA Systems:
2003 – 2005: Principal Business Consultant
1998 – 2003: Senior Consultant
• Customer Support for BEA products, in particular, Tuxedo, and WebLogic Enterprise and WebLogic Server
• Training for BEA products, especially WebLogic Enterprise (CORBA) and Weblogic Server (J2EE)
• Support for sales and pre-sales
• Mentoring of project teams
• Development and administration at the customer‘s site
• Problem tracking and resolution
• Architecture analysis and design for transaction-oriented client-server and Internet J2EE applications
• Architecture, design and code reviews
• Integration of customized software systems
• Performance tuning
• Technical project management
1995 – 1998: Techniker Krankenkasse:
1998 – 1998: System Architect – Competence Center Design and Methods
• Designing and developing a system architecture
• Creating a multi-layer architecture based on CORBA and Java
• Management of sub-projects
• Selection of software and systems
1996 – 1998: System Developer – Department of Software Engineering
• Support and training for application developers
• Development of a SQLWindows GUI
• Selection of object-oriented tools as standards for the company
• Developing a class library as a corporate standard
1995 – 1996: Application Developer
• Development of client-server applications with Gupta SQLWindows in the Department of recoveries
• Integration of an imaging system
Education
1994: German diploma in Computer Science, Grade: “Very Good”
1990 – 1994: Technical University of Berlin
1989 – 1990: Freie Universität of Berlin
1988 – 1989: Friedrich-Alexander University Erlangen-Nümberg
1986: University-entrance diploma in Hamburg