Christof (Alwin) Hertkorn-Test Manager
Check rate
Experience
Test Manager
Planning and Information System
- Integrated Planning and Information System is rolled out and needs to be tested in various configurations and constellations
- Coordination and management of tests at approval, end-to-end, system and system integration levels as well as interface tests
- Development of a test plan according to HERMES standard for agile testing within SAFe/Scrum
- Automated tests developed in Ansible and integrated into a CI/CD GitLab pipeline
- Creation of system, integration, smoke, and end-to-end tests and management in Jira/Xray/Confluence
- Introduced a new review process for testing, leading to a redesigned Jira workflow presented in a cross-department board and released for all departments
- Consulting stakeholders to establish a toolchain for tests, requirements, bugs/defects for both GitLab and Atlassian tools
Senior Test Manager
Expleo
Introduced new software for all notaries of Canton Zurich and coordinated and managed tests at approval, end-to-end, system and system integration levels as well as interface tests
Closed the gap between the software provider and end customers (notary employees)
Designed, organized, and implemented the first pilot agile test rounds with end users to introduce cyclic test rounds on a 4-week cycle until rollout (2025)
Provided training, support, and leadership to test personnel regarding test case execution, bug creation, and defect management with all stakeholders
Coordinated available test case developers and built test automation in parallel
SBB test automation: case specification, validation, reporting, and maintenance of test framework for automation and regression tests for Rail Control System (RCS) software
Maintained and improved the nightly test automation engine; worked in the STTO (Stabilisation & Tooling) team
Coordinated WIN system and acceptance tests; introduced Jira cross-division for defect tracking
Led integration tests for the AWAP-light construction site surveillance system and shifted manual tests to automatic regression tests in a heterogeneous, distributed system
Transitioned testing to DevOps: test automation, test framework setup, test case specification, validation, reporting, automation, and regression tests
TWM middleware non-functional tests: wireless transmission of telegrams between the central train control system server and mobile device; specified and executed requirement-based validation tests and use-case based tests
Employed agile, problem-centered communication in a Scrum team with business analysts, requirement engineers, software developers, product owner, stakeholders, and customer representatives
Used Jira, Confluence, Xray, Jenkins, DevOps, Agile, Scrum, Kanban; domain: SBB-specific railway control systems: RCS, ADL, WarnApp, AWAP-light, WIN
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Quality Assurance and Project Management.
Skills
Professional Focus:
- Design Process: Agile Design, Development & Testing
- Test-Driven Design & Development
- Keyword-Driven Design, Development & Testing
- Rapid Prototyping
- Construction Kit-Based Design (“Modular Kit Principle”)
Modelling, Methods:
- Uml
- Sdl
- Msc
- Rapidplus
- V Cycle
- Obeya
- Scrum
- Spice
- Cmmi
- Istqb-Foundation
Programming Languages:
- C++/C
- C#
- Java
- Robot
- Perl
- Objectivec
- Lisp
- Ops5
- Smalltalk
Bus Protocols:
- Ip
- Most
- Can
- Osek
- Autosar
- Tcms Etb/Wtb
- Mvb
- Etcs
Operating Systems:
- Unix: Mac Os X, Qnx, Vxworks, Linux & Other Unix Derivates
- Windows 2k Derivates
Ide / Methods / Tools:
- Enterprise Architect
- Togethersoft Uml
- Rational Doors & Clearquest & Clearcase
- Pycharm
- Momentics Eclipse Ide
- Microsoft Visualstudio
- Testlink 1.9.3
- Esim Rapidplus
- Vector Canoe
- Most Optolyzer
- Telelogic Tao (Sdl, Msc)
- Harmanbecker/Ideasoft Mocca-Framework
- Borland C++ Builder Vcl
- Windriver Tornado
Working Domains:
- Hmi
- Ux
- Automotive Infotainment & Driver Assistance
- Train Passenger Information Systems & Dmi
- Multimedia Entertainment Infotainment Communciation
- Embedded Systems
- Testing
Norms & Standards:
- Iso 29119 "Software Testing"
- Ieee 829 (Istqb)
- Iso 26262 "Road Vehicles – Functional Safety"
- En 50128/Iec 62279 "Railway Applications - Communication, Signalling And Processing Systems"
Languages
Education
Karlsruhe University of Applied Sciences
Diploma in Computer Science, Diploma thesis "Evaluation of different techniques of knowledge representation within an expert · Computer Science · Karlsruhe, Germany
University of Paderborn
Intermediate Diploma in Computer Science · Computer Science · Paderborn, Germany
Reismann Grammar School Paderborn
Abitur · Paderborn, Germany
Certifications & licenses
TOSCA Automation Specialist Level 1
Java Fundamentals
Cantata Workshop
Together Quickstart Modelling UML
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Christof is based in Bern, Switzerland and can operate in on-site, hybrid, and remote work models.
Christof speaks the following languages: German (Native), English (Advanced), Polish (Advanced), French (Intermediate), Italian (Elementary).
Christof has at least 5 years of experience. During this time, Christof has worked in at least 2 different roles and for 2 different companies. The average length of individual experience is 3 years and 7 months. Note that Christof may not have shared all experience and actually has more experience.
Based on recent experience, Christof would be well-suited for roles such as: Test Manager, Senior Test Manager.
Christof's most recent position is Test Manager at Planning and Information System.
In recent years, Christof has worked for Planning and Information System and Expleo.
Christof is most experienced in industries like Information Technology and Government and Administration.
Christof is most experienced in business areas like Quality Assurance and Project Management.
Christof holds a Master in Computer Science from Karlsruhe University of Applied Sciences.
Christof has 5 certificates. Among them, these include: TOSCA Automation Specialist Level 1, ISTQB-Foundation-2018, and Java Fundamentals.
The availability of Christof needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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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 27 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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