Recommended expert
Maximilian Hammer
Senior Developer
Experience
Oct 2020 - Jun 2022
1 year 9 monthsBerlin, Germany
Senior Developer
Senacor Technologies AG
- Test-driven further development of a cross-brand credit card banking system including back-office applications for a leading German bank with 2.5 million customers, based on a microservices architecture, implemented in Java 8-17, Spring Boot, Angular, SQL, Docker and Kubernetes
- Technical lead for implementing a back-office portal to deliver marketing campaigns, messages and documents based on up to 50 configurable customer attributes
- Leading and improving the development and DevOps guilds for cross-team agile collaboration
Jun 2019 - Sep 2020
1 year 4 monthsBerlin, Germany
Developer
Senacor Technologies AG
- Improved the synchronous login process from a maximum of 10 logins/s to 250 logins/s by converting the affected microservices and interfaces to asynchronous communication
- Migrated 30 microservices (~4000 tests) from JUnit 4 and Spock to JUnit 5 to create a unified, easier-to-understand and maintainable baseline for test-driven development
Jan 2018 - Jun 2018
6 monthsCologne, Germany
Department Manager
Next Level Integration GmbH
- Led the Customer Portals department, including managing a team of six on-site staff
- Planned sprints and coordinated with ten team members at the nearshore locations in Leipzig and Braşov
Sep 2015 - Dec 2017
2 years 4 monthsCologne, Germany
Developer
Next Level Integration GmbH
- Managed the project, implementation and further development of rate and business customer portals for energy providers with up to 100,000 customers and a scope of up to 350 person-days
- Implemented using a microservices architecture that uses REST for communication and is built with Java 8, AngularJS, Jetty and relational databases
Jul 2014 - Apr 2015
10 monthsAltenstadt an der Waldnaab, Germany
Developer
Speed4Trade GmbH
- Increased the update rate of eBay listings, limited to 100,000 calls/day, by integrating the asynchronous eBay MIP (100,000 listings/hour) for customers with up to 250,000 listings
May 2012 - Present
13 years 9 monthsGermany
Developer
Taxi Renner GbR
- Continuously developed a production web app in use for over 10 years to track more than 20,000 shifts, including 70,000 rides, and to support payroll and invoicing
Skills
- Languages And Frameworks: Java, Spring Boot, Angular, Node.js, Typescript, Javascript, Docker, Kubernetes
- Tools: Git, Intellij Idea, Maven, Jenkins, Sonarqube, Grafana, Prometheus, Splunk, Jira, Confluence
Languages
German
NativeEducation
Nov 2012 - Jun 2014
Speed4Trade GmbH
Vocational training as an IT Specialist in Application Development · IT Specialist in Application Development · Altenstadt an der Waldnaab, Germany
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