Freelance: Senior Software Developer
MeinAuto / Renault
(Internet and Information Technology)
Keywords
Skills
Senior Java Developer and DevOps Engineer with over 20 years of experience in IT. Specializing in AWS, Kubernetes, Docker, and CI/CD pipelines, as well as modern frameworks (e.g., Java Spring Boot, Golang, Vue.js). Proven skills in agile methodologies (Scrum, Kanban) and a track record of delivering scalable solutions for renowned enterprises such as Lufthansa, Volkswagen, Bentley, and Renault. Currently seeking DevOps and cloud projects to apply my extensive experience and broad technical expertise.
Project history
08/2024
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12/2024
- Developed and implemented a dynamic prototype UI for dealers to create car leasing quotes and contracts, leveraging Vue.js and Nuxt for frontend development, with backend services powered by Java Spring Boot.
- Worked in an agile environment, contributing to Scrum ceremonies and following Kanban principles for backlog management and continuous delivery.
- Collaborated closely with cross-functional teams, ensuring smooth communication and effective problem-solving across various stages of the project.
- Implemented deployment pipeline with Gitlab and Kubernetes for the review environment.
10/2021
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07/2024
DevOps Engineer / Freelance: Senior Java Developer
they Consulting (Projects: Bentley and Volkswagen)
(Internet and Information Technology)
- Developing spring boot applications
- Building and deploying to the AWS infrastructure.
- Improving the AWS infrastructure.
- Implementing a CI/CD Pipeline in GitHub.
- Implementing microservices.
- Requirement’s analysis and software design.Planning and implementing API interfaces.
01/2020
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10/2021
Freelance: Cloud DevOps Engineer
Lufthansa Industry Solutions GmbH & Co. KG (Project: Volkswagen)
(Internet and Information Technology)
- Support and maintenance of the AWS infrastructure
- Gulpjs, Terraform and Python scripting for automating processes
- Deployment of new software packages
08/2017
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12/2019
Freelance: DevOps Engineer / Senior Java Developer
uni-assist e.V.
(Internet and Information Technology, 250-500 employees)
- Consulting, planning and developing features for the Vaadin based web administration application.
- Consulting, planning and developing features for the Vuejs, Java and Rest based web public applicants’ application.
- Planning and implementing the complete devops development and deployment infrastructure using Jenkins, Kubernetes and Gitlab.
03/2013
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06/2018
Co-Founder & CTO
CommerceBoard GmbH (formerly Sevon GmbH)
(Internet and Information Technology, < 10 employees)
- Designed and developed a robust Java shop system called geeCommerce.
- Created a comprehensive PIM system for geeCommerce.
- Implemented and customized geeCommerce features for a large international furniture store.
- Automated multiple backend processes and integrated with the customer’s ERP system.
- Developed an admin panel for geeCommerce as a JavaScript single-page application.
- Implemented deployment pipeline with gitlab-ci and Kubernetes.
- Developed a Rust-based CLI tool for parsing system and application logs, incorporating file integrity checks to enhance security and streamline debugging processes.
04/2017
-
08/2017
Freelance: Senior Java Developer
mobile.de – mobile.de GmbH (an eBay company)
(Industry and mechanical engineering, 50-250 employees)
- Maintaining, improving and fixing various services in the microservice landscape.
03/2017
-
04/2017
Freelance: Senior Java Developer
Quazer.com – Magic Internet GmbH
(Internet and Information Technology, 50-250 employees)
- Converting a ruby registration and authentication microservice to Java Spring Boot.
09/2012
-
02/2013
CTO E-Commerce
SevenVentures GmbH (ProSiebenSat.1 Media AG)
(Internet and Information Technology, 50-250 employees)
- Planning, Designing and implementing a Magento-Shop. Various due diligence projects.
01/2009
-
08/2012
IT Director (CTO)
7trends-Enamora GmbH
(Internet and Information Technology, 50-250 employees)
- Designing and implementing new features for the Magento shop system. Designing and developing a credit control system.
- Setting up an automated build and deployment environment.
- Introducing a ticketing system, software versioning and release management. Carrying out extensive performance optimizations in order to make the shop fit for TV ads.
- Managing the IT Team.
10/2007
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12/2008
Teamlead Backend
TopTarif Internet GmbH
(Internet and Information Technology, 50-250 employees)
- Participating in the design and development of the TopTarif homepage and several online tariff calculators (car insurance, electricity, DSL).
- Designing and setting up the (software related) system architecture and deployment tools.
- Managing the backend team.
05/2006
-
10/2007
Senior J2EE Developer
Pixelpark AG
(Internet and Information Technology, 50-250 employees)
- Designing and implementing several projects. Among them being a few Second Life projects, which mainly involved developing interfaces to a Java backend. Participating in the design and development of a second hand car store, gebrauchtwagen.de – a modern web2.0 application with advanced searching capability and built for high performance.
08/2003
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04/2006
J2EE Backend Developer
Jamba! GmbH
(Internet and Information Technology, 250-500 employees)
- Designing and implementing many features for the project iLove.
- Rewriting the messaging module in order to resolve a serious bottle-neck.
- Moving the photo-rendering code to an asynchronous process.
- Remote search cache.
- Affiliate framework.
- Participating in the design and implementation of a chat server on the basis of the new Java NIO.
07/2000
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08/2003
Web Developer
Morelogs GmbH (now Communicode GmbH)
(Internet and Information Technology, 10-50 employees)
- Designing and developing many features for CMS and eCommerce projects.
Certifications
Local Availability
Only available for remote work
