Alexander Heister-System Tester
Check rate
Experience
System Tester
Freelance Senior Software and System Tester
- System testing of automated banknote processing systems with CAN bus technology
- test case creation and test design
- test execution and documentation of test results
- creation of bugs and retesting
- installation of complete machines and hotfixes
- use of Micro Focus ALM and Azure DevOps / TFS
System Verification Engineer
Freelance Senior Software and System Tester
- System testing of a fully automated lab solution with integrated analysis devices and an aliquoter
- requirement analysis and test design
- test execution and bug tracking
- use of Polarion ALM, Remisol Advance and MS Teams
System Tester
Freelance Senior Software and System Tester
- System testing of automated banknote processing systems with CAN bus technology
- test case creation and test execution
- documentation of test results and bug retests
- installation of machines and hotfixes
- use of HP ALM, ClearQuest and VMware
System Verification Engineer
Freelance Senior Software and System Tester
- Continuation of the System Verification Engineer project at the customer Beckman Coulter GmbH
- use of Polarion ALM, Visual Studio and Remisol Advance
System Verification Engineer
Sogeti Deutschland GmbH
- New development of a lab automation system for blood and urine samples
- requirements analysis and test design
- creation of test cases and test execution
- responsibility for system tests
- use of Polarion ALM and Visual Studio
Software Tester / Test Coordinator
Sogeti Deutschland GmbH
- Support in revising the test concept and in defect management
- Onboarding of business testers and support for the test manager
- Test coordination, test design, test data creation, and test execution
- Error reporting with focus on GUI, login, routing, and various use cases
- Use of HP Quality Center
Technical Manager
Sogeti Deutschland GmbH
- Personnel responsibility for 35 consultants
- Staffing open project requests in cooperation with account managers
- Employee support, development, and reviews
- Training and development planning
- Running career days, recruitment activities, job interviews, and kick-off events
- Forecast planning for indirect projects (vacation, illness, training, availability)
- Participation in the company management's Germany-wide HR committee
Consultant
Sogeti Deutschland GmbH
- System testing of heating systems for the customer Webasto AG
- Creation of schedule and test plans
- Coordination of manual and automated test execution
- Requirement analysis and review of system requirements and specifications
- Test design and creation of the system test specification up to approval
- Execution of HIL tests and safety-relevant functional tests
- Testing of vehicle diagnostics
- Documentation of test results and defects
- Use of DOORS, VECTOR CANoe, CAN bus, and SVN
Senior Consultant
C1 SetCon GmbH
Software testing of dealer shops at Telefónica O2 Germany GmbH & Co. OHG in Munich
Test automation using soapUI and internal test tools
Test design and execution of ad hoc, regression, acceptance, and component tests
Bug reporting with SVN, soapUI, Jira, and Confluence
Software testing of a B2B online shop for softLution GmbH in Lünen (Kaiser & Kraft GmbH)
Test execution and test design
Software development of a J2ME mobile app (eCall) in an internal project
Continuation of the project at Nokia
Consultant
LogicaCMG & Co. KG
System testing of multimedia head units for Nokia AG in Bochum
Test design, test automation, and test execution with VECTOR CANoe, DeepThought, and CAN bus technology
Functional tests for USB, power, SMS, and MMS
J2EE web application for a financial services provider (WestLB Systems) on the topic of Basel2/Rating DB
Software development with Eclipse, J2EE, JSP, HTML, JavaScript, Struts, SVN, JUnit, ANT, and Maven
Java Application Developer
Sparkassen Informatik Systeme West GmbH
- Development of Java applets and applications with CICS connection to DB2 HOST
- Use of IBM VisualAge for Java, Eclipse, JFC Swing, DB2, COBOL, and Sparkassen DWH
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Banking and Finance, Information Technology, Automotive, Healthcare, Manufacturing, and Retail.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Quality Assurance, Information Technology, Product Development, and Human Resources.
Skills
- Hands-On Mentality
- High Commitment
- Strong Sense Of Responsibility
- Reliable
- Independent Way Of Working
- Team Player
- Open-Minded
Languages
Education
Siemens AG
Industrial clerk (IHK) and database developer · Duisburg, Germany
Ruhr University Bochum
Geography · Bochum, Germany
Certifications & licenses
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Alexander is based in Valley, Germany and can operate in on-site, hybrid, and remote work models.
Alexander speaks the following languages: German (Native), English (Advanced).
Alexander has at least 27 years of experience. During this time, Alexander has worked in at least 7 different roles and for 5 different companies. The average length of individual experience is 2 years and 5 months. Note that Alexander may not have shared all experience and actually has more experience.
Based on recent experience, Alexander would be well-suited for roles such as: System Tester, System Verification Engineer, Software Tester / Test Coordinator.
Alexander's most recent position is System Tester at Freelance Senior Software and System Tester.
In recent years, Alexander has worked for Freelance Senior Software and System Tester.
Alexander is most experienced in industries like Banking and Finance, Information Technology, and Automotive. Alexander also has some experience in Healthcare, Manufacturing, and Retail.
Alexander is most experienced in business areas like Quality Assurance, Information Technology, and Product Development. Alexander also has some experience in Human Resources.
Alexander has recently worked in industries like Banking and Finance, Manufacturing, and Biotechnology.
Alexander has recently worked in business areas like Quality Assurance, Information Technology, and Product Development.
Alexander attended Siemens AG for Industrial clerk (IHK) and database developer.
Alexander has 1 certificate: ISTQB Foundation Level.
The availability of Alexander needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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