Freelance Software Engineer & Testing Specialist | Quality-Focused Code Wizard
Aktualisiert am 28.11.2023
Freiberufler / Selbstständiger
Verfügbar ab: 01.01.2024
Verfügbar zu: 100%
davon vor Ort: 5%
Native Speaker
Advanced Level, Second Native Language
Advanced Level


Deutschland, Schweiz, Österreich


11 Monate
2023-02 - 2023-12

Network Platform Project

Test Automation Expert for End-User Services Python robotframework grafana ...
Test Automation Expert for End-User Services
  • Engineer a comprehensive testing framework for critical end-user services, including network (e.g., authentication, VLAN allocation) and application services (e.g., MS Office365).
  •  Develop and implement a quality assessment framework to ensure the reliability and efficiency of end-user services.
  •  Author and execute automated test cases in Python, utilizing the Robot Testing Framework, to enhance service validation processes.
  • Produce customized test reports and implement Grafana dashboards for insightful visualizationof test outcomes.
  •  Establish and manage a CI-CD pipeline in GitLab, optimizing development and deployment workflows.
  • Successfully deploy and integrate the test framework into diverse operational environments
Python robotframework grafana CI/CD pipeline Gitlab
Deutsche Bahn
Frankfurt am Main
1 Jahr 2 Monate
2022-11 - 2023-12

Fullstack Development Project

Fullstack Web Developer HTML JavaScript CSS ...
Fullstack Web Developer
  • Develop front-end and back-end solutions, specializing in UI design with HTML, CSS, Angular, React; and server-side programming in Python, Java, including REST-API development.
  • implement and manage databases using MySQL and MongoDB.
  • Conduct comprehensive testing: unit, integration (Selenium, Robot Framework); and testing with Postman.
  • Establish and maintain CI/CD pipelines using GitHub Actions.
  • Deploy web applications on AWS, utilizing Docker and Kubernetes technologies.

HTML JavaScript CSS Angular MongoDB Selenium robotframework kubernetes Git postman
Sharp Agile Technologies UG
2 Jahre 3 Monate
2020-08 - 2022-10

Developed user interfaces for car multimedia systems

Front-End Developer
Front-End Developer
  • Developed user interfaces for car multimedia systems, including prototyping and design with Sketch.
  • Implemented responsive UIs using HTML, SCSS, and Angular, adhering to modern web standards.
  • Managed and maintained BEM (Block Element Modifier) methodology for CSS architecture.
  • Conducted extensive UI testing (unit and integration) and debugging on various hardware platforms.
  • Utilized Bitbucket for efficient software version control and team collaboration.
Stellar design und engineering GmbH
1 Jahr 7 Monate
2018-04 - 2019-10

Managed and optimized the institute?s TYPO3 websites

Web Developer (Student Assistant)
Web Developer (Student Assistant)
  • Managed and optimized the institute?s TYPO3 websites for performance and reliability.
  • Administered TYPO3 CMS, including updates, module configuration, and template customization.
  • Enhanced front-end and back-end features using HTML, CSS, JavaScript, and server-side database programming.
  • Provided technical support for TYPO3 websites, addressing issues and enhancing user experience based on feedback.
Heinz Nixdorf Institut
2 Jahre
2017-10 - 2019-09

Software Innovation Lab

Software Developer (Student Assistant)
Software Developer (Student Assistant)
  • Contributed to the ?Business 4.0 OWL? project, focusing on ICT-driven business model innovation and value chain development.
  • Developed and maintained an IT showroom demonstrator, highlighting new software solutions and technologies.
  • Engaged in full-stack development, including UI design with HTML, CSS, and Angular, server-side scripting in NodeJS, and REST-API integration.
  • Implemented and managed database systems using MySQL.
University of Paderborn
1 Jahr 1 Monat
2018-04 - 2019-04

Developed a platform for searching and aggregating open-source software

Web Developer and Tester (Student Project Group),
Web Developer and Tester (Student Project Group),
  • Developed a platform for searching and aggregating open-source software based on specific features from various repositories.
  • Designed user interface using HTML, CSS, and Angular.
  • Conducted front-end testing utilizing Cypress.
  • Implemented server-side logic and API development in Scala.
  • Deployed platform leveraging Docker and Kubernetes for containerization and orchestration.
University of Paderborn
2 Jahre
2014-01 - 2015-12

Specialized in deploying and customizing VTiger CRM systems

Network Specialist and Customer Support
Network Specialist and Customer Support
  • Specialized in deploying and customizing VTiger CRM systems for optimal integration with existing technologies.
  • Managed VoIP systems, ensuring quality standards and resolving performance issues at client sites.
  • Provided expert consultations on IP telephony, tailoring VoIP solutions to meet specific client requirements.
Yaound´e, Cameroon
2 Jahre
2013-01 - 2014-12

Engineered an enhanced MOODLE e-learning platform client

Software Developer
Software Developer
  • Engineered an enhanced MOODLE e-learning platform client, improving accessibility and user experience (URL on request).
  • Developed offline access capabilities for lectures and exercises, enabling continuous learning in the absence of internet connectivity.
  • Created synchronization features for updating user progress and submissions upon reconnection to the internet.
  • Implemented robust server integration protocols for consistent and reliable data exchange with the Moodle server.
University of Dschang
Dschang, Cameroon
2 Jahre
2011-01 - 2012-12

Designed and managed robust intranet systems

Network Specialist and Trainer
Network Specialist and Trainer
  • Designed and managed robust intranet systems, ensuring optimal network performance and communication.
  • Responsible for the installation, configuration, and maintenance of operating systems on diverse computers.
  • Oversaw intranet and internet network configurations, focusing on architecture, performance, and security.
  • Delivered computer science courses to children, nurturing foundational IT skills.

Aus- und Weiterbildung

1 Monat
2022-10 - 2022-10

Meta Front-End Developer Professional
1 Monat
2022-09 - 2022-09

Cypress UI automation testing
1 Monat
2022-09 - 2022-09

Design and Develop a Website using Figma and CSS
4 Jahre 1 Monat
2018-04 - 2022-04

Computer Science

Master, Universität Paderborn
Universität Paderborn
Software Engineering
1 Monat
2017-10 - 2017-10

Front-End Development with HTML5, CSS3 and Javascript


Freelance Software Developer and Tester



Testautomatisierung Testanalyse Testreports Back-End Front-End

Produkte / Standards / Erfahrungen / Methoden


Innovative and results-driven freelance software engineer with extensive experience in software testing, test automation, and full-stack web development. Expert in Java and Python, I excel in testing software systems and am passionate about developing both the front-end and back-end aspects of web applications. My approach combines innovative problem-solving with a deep understanding of software quality and user experience. Dedicated to delivering high-quality, efficient software solutions, I am adept at streamlining testing processes and integrating the latest technologies in web development. With a strong record of successful projects and continuous professional development, I am committed to providing top-tier freelance services in advanced software engineering.

Skills and Technologies

Testing Frameworks 

  • Robotframework
  • Jest
  • Cypress
  • Storybook
  • JUnit
  • Postman

Coding Frameworks

  • Bootstrap
  • Angular
  • React
  • Node.js
  • Spring
  • Spring Boot

Prototyping Tools

  • Balsamiq
  • Figma
  • Sketch


  • Typo3
  • Joomla
  • Wordpress

CI/CD Tools

  • Azure DevOps Pipelines
  • Docker/Kubernetes
  • Jenkins
  • Github Actions
  • Gitlab


  • FTP
  • MQTT

Internet of Things

  • Programming of Linux-based gateways with Java and Python

Networks and Systems

  • TCP/IP
  • Linux
  • Windows
  • MacOS


  • Grafana

Software Methods

  • Agile
  • Scrum
  • Pair programming
  • Design thinking

Agile Planning Tools

  • Azure DevOps
  • Jira


  • UML
  • Merise





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