Jonathan Krauß

Test Automation Engineer (Freelancer)

Kirchlinteln, Germany
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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