Experience developing responsive websites for large media companies and for small personal web pages.
I have a university degree in computer science degree with an emphasis in security and many years of practice in penetration testing.
Developed new features for Oracle's Retail Invoice Matching Software and developed and implemented security protocols and patches. Worked with Java Development Frameworks, e.g. Spring und Struts, and JSP to develop web applications.
Launched a self-owned and operated website called Halls of Valhalla. The site expanded over time to eventually include news, articles, code snippets, a forum, education challenges, and more. All backend development, frontend development, design, and system administration is handled by myself.
Backend (primarily PHP) for one of Germany's largest app advisors. Also did backend development for one of the largest price comparison sites in the country.
Created microservices and APIs in Go using an eventsourcing architecture and asynchronous techniques for Sixt's CRM components. Worked with focus on concurrency, performance, and test-driven development.
Architected and implemented the backend (in Golang microservices) for Sixt's Fastlane product, allowing customer's to select their vehicle, start their rental, and unlock the car using the Sixt app. Served as the architect for the Reservation team working to modernize the product.
Architected and implemented the backend (in Golang microservices) for Sixt's new third party API, allowing external partners to integrate with Sixt's rental products. Served as the technical lead and architect for the digital checkout initiative.