(09/2019 - 11/2024)

Senior Software Developer at Zeppelin / z-Lab GmbH

• Development of web applications, microservices, REST APIs, IoT integrations.
• Single sign-on for the group
• Modular platform with custom apps
• Replatforming the entire Zeppelin website
• Notification services

Technical Planning, Development, Maintenance, Node.js, Strapi, Next.js, PHP, Laravel, Symfony, Svelte, SASS, AWS, Kubernetes, Docker, Performance Analysis, Scrum, Project Planning

(04/2016 - 08/2019)

Senior Software Developer at posterXXL

• Product configurator "Studio"
• Backend application for configuring products in the posterXXL "Studio" project and production
• posterXXL shop

Technical Planning, Development, Maintenance, JavaScript, RequireJS, BackboneJS, PHP, Symfony, Slim, Doctrine, Doctrine, Eloquent, Redis, MySQL, MongoDB, SASS, Docker, AWS, GIT, Performance Analysis, Scrum, Project Planning

(01/2017 - 06/2018)

Freelance Work

Technical planning and development of a trading platform including frontend, backend, gateway, and mobile app

React Native, React.js, Node.js, WebSocket, SASS, iOS, Android, Docker, Binary Bank Format

(07/2015 - 11/2015)

Senior Software Developer at myposter GmbH

Further development of the shop system and integration with production

PHP, Node.js, Web Development, JavaScript, SQL, Scrum, Web Services, Agile Methodologies, Microservices, GitFlow, OOP, Software Architecture, MySQL, Full-Stack Development, Backend Development, CI/CD

(04/2015 - 06/2015)

Deputy Team Manager at CHECK24

Further development of the city hotel section, supporting the team lead

PHP, Node.js, Web Development, JavaScript, SQL, Scrum, Web Services, Agile Methodologies, Microservices, GitFlow, OOP, Software Architecture, MySQL, Full-Stack Development, Backend Development, CI/CD

(05/2013 - 03/2015)

Senior Software Developer at Bryanston Services (D) GmbH

• Development of an offline-capable single-page application displaying commodity prices
• Tool for planning routes for cargo ships
• A lottery website

SQL, Node.js, Scrum, Development, Web Services, Agile Methodologies, Microservices, GitFlow, OOP, Software Architecture, MySQL, Full-Stack Development, Backend Development, CI/CD, PHP, Web Development, JavaScript, Unit Tests

(05/2011 - 04/2013)

Technical Lead at Travian Games

Responsible for architecture design, prototyping, analysis, implementation, maintenance, and further development of browser games in the PHP environment. Duties included creating technical documentation, caching strategies, database management, performance optimization, and interface integration. Technologies used included Zend Framework, MySQL, PHPUnit, JavaScript, (X)HTML, CSS, and Node.js. Additionally, I provided technical leadership and development to team members.

PHP, Node.js, Scrum, Development, SQL, Web Services, Agile Methodologies, GitFlow, OOP, Software Architecture, MySQL, Full-Stack Development, Backend Development, CI/CD, Web Development, JavaScript, Unit Tests

(09/2009 - 04/2011)

Senior Software Developer at Travian Games

Responsible for the design, prototyping, analysis, implementation, maintenance, and further development of browser games in the PHP environment. Focus on caching, database management, performance optimization, and interface integration. Technologies used included Zend Framework, MySQL, PHPUnit, JavaScript, (X)HTML, and CSS.

PHP, Node.js, Scrum, Development, SQL, Web Services, Agile Methodologies, GitFlow, OOP, Software Architecture, MySQL, Full-Stack Development, Backend Development, CI/CD, Web Development, JavaScript, Unit Tests

(02/2008 - 07/2009)

Head of Software Developer at sapodo SE

Frontend development, web programming and design, independent conceptualization, implementation, maintenance, development of a web application for interactive offer presentations and execution via chat and video streaming in the PHP environment with Flash, JavaScript, (x)Html, CSS, MySQL, etc.

PHP, SQL, Frontend Development, Web Services, OOP, Full-Stack Development, Backend Development, PostgreSQL, Web Development

(11/2004 - 01/2008)

Software Developer at Stone Datensysteme / STONE Software Solutions GmbH

Development, maintenance, support, training, and customer support for the "TMS" application in the server and client environment with 4th Dimension for PC and Mac.

SQL, Development, Full-Stack Development, 4th Dimension

(2004 - 2006)

Freelance Work at Empire Universe

Further development, maintenance, and support of the browser game Empire Universe 1 (discontinued)

(03/2003 - 08/2003)

Software Developer at ISU GmbH

Further development, maintenance, and setup of a cutting profile optimization software in Visual Basic. Programming and controlling of robotic cutting machines.

(11/2002 - 02/2003)

Freelance Work at ISU GmbH

Development, maintenance, and setup of a cutting profile optimization software in Visual Basic.

(04/2000 - 05/2001)

Freelance Work at Andreas Hettich GmbH & Co. KG

Further development, documentation, care and maintenance of a customer service software in Visual Basic, database replication, interface development to AS400.

(10/1999 - 03/2000)

Working Student at Andreas Hettich GmbH & Co. KG

Further development, documentation, care and maintenance of a customer service software in Visual Basic, database replication, interface development to AS400.