Jonathan K.
Test Automation Engineer (Freelancer)
Experience
Oct 2024 - Apr 2025
7 monthsTest Automation Engineer (Freelancer)
Bank Verlag GmbH
- Refactoring test automation (Java/Kotlin)
- Implementing integration tests (Cucumber, Gherkin)
- Bug fixing and implementing new features in pair programming
- Implementing test processes in CI/CD architecture (GitLab)
- Planning and creating a test concept
- Analyzing business processes to evaluate test coverage
- Bug tracking and verification (Kubernetes/k8s, Kibana)
- Extending GitLab CI deployment pipelines
- Analyzing logs and metrics
- Implementing tests to verify security requirements (PCI DSS/ISO 27001)
Oct 2023 - Mar 2025
1 year 6 monthsCloud Engineer (Freelancer)
VTG Rail Europe GmbH
- Establishing a company-wide k8s monitoring framework (AWS/Datadog) with Terraform
- Implementing new features (Kotlin/Java)
- Automated deployments with Helm
- Implementing technical and business metrics
- Setting up new data streams in AWS (SNS, SQS)
- Expanding/maintaining AWS infrastructure with Terraform
- Maintaining Kubernetes (k8s) clusters
- Configuring/integrating automated dependency updates with Renovate
- Extending GitLab CI/CD pipelines
- Automating processes using a workflow tool (Argo Workflow)
- Supporting the development team
- Analyzing operational issues and implementing fixes
- Developing test strategies and best practices
- Supporting the implementation of unit and integration tests
Apr 2023 - Sep 2023
6 monthsTest Automation Engineer (Freelancer)
VTG Rail Europe GmbH
- Advising, designing and customizing test frameworks (Cypress, TestCafe)
- Conducting manual tests
- Advising front- and back-end development on quality assurance
- Increasing test coverage
- Implementing integration tests
- Expanding and refining quality goals according to ISO 25010
Aug 2022 - Mar 2023
8 monthsSoftware Tester / Testautomatisierer (Freelancer)
mecom Medien-Communikations-Gesellschaft mbH
- Planning and creating test scenarios
- Preparing test data and executing tests
- Test automation in a container environment (Java, Cucumber)
- Ensuring test coverage
- Further development of the test framework
- Administering the test environment (Linux)
Jan 2022 - Jul 2022
7 monthsMunich, Germany
Software Quality Assurance Manager (Freelancer)
ProSiebenSat.1 Media SE
- Adapting and implementing a test strategy
- Planning and creating test scenarios
- Preparing test data and carrying out tests
- Assessing current quality risks
- Advising on acceptance decisions for software systems
- Automated software tests (Java Cucumber)
- Further development of the in-house test framework
- Developing tools to support testing
- Managing and carrying out release rollouts
- Leading UAT workshops with key users
- Acting as the technical contact for quality topics in partner projects
Feb 2020 - Sep 2022
2 years 8 monthsHamburg, Germany
Software Developer
Hermes Germany GmbH
- Developing and integrating event-based data streams/systems in a cloud environment (AWS, GCP)
- Creating fully automated CI/CD deployment pipelines (GitLab CI, Bitbucket Cloud)
- Deployment automation via IaC (CloudFormation, Terraform)
- Administration and operations - AWS / Google Cloud
- Customer segment analysis and prototyping
- Monitoring / logging / data analysis
Feb 2019 - Jan 2020
1 yearHamburg, Germany
Quality Assurance Engineer
Hermes Germany GmbH
- Developing test strategies
- Front-end tests with TestCafe
- Test automation within distributed systems
- E2E tests in a container environment
- Developing methods for test data provisioning
- Deployment automation with GitLab CI
- Test management
- Exploratory testing
- Security tests
Dec 2017 - Jan 2019
1 year 2 monthsBremen, Germany
Quality Assurance Expert
CTS Eventim Solutions GmbH
- Software development using Scrum (AngularJS)
- UI testing (AngularJS/Protractor)
- Creating CI/CD pipelines (Jenkins, GitLab)
- Maintaining technical backlogs
- Building/migrating test automation (Selenium)
- Quality management
Jun 2016 - Nov 2017
1 year 6 monthsBremen, Germany
Werkstudent
CTS Eventim Solutions GmbH
- Quality assurance
- Test automation of web applications
- Release planning
- Deployment approval
- Regression/ integration tests
- 3rd-level support
Sep 2015 - Mar 2016
7 monthsBremerhaven, Germany
Studentischer Mitarbeiter
Hochschule Bremerhaven
- Conducting tutorials
- IT system maintenance
- Preparing workshops (quality management) - creating a concept for a test automation pipeline with Jenkins CI
Languages
German
NativeEnglish
AdvancedEducation
Oct 2014 - Dec 2017
Bremerhaven University of Applied Sciences
Business Informatics · Bremerhaven, Germany
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