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Jonathan Krauß
Test Automation Engineer (Freelancer)
Kirchlinteln, Germany
Experience
Education
Languages
Experience
Oct 2024 - Apr 2025
7 months
Test 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 months
Cloud 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 months
Test 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 months
Software 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 months
Munich, 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 months
Hamburg, 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 year
Hamburg, 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 months
Bremen, 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 months
Bremen, 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 months
Bremerhaven, 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
Native
English
Advanced
Education
Oct 2014 - Dec 2017
Bremerhaven University of Applied Sciences
Business Informatics · Bremerhaven, Germany
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