Sebastian Nkwenti - Railway Systems Test Manager, 24 Years

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Hanau, Germany

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Experience

Mar 2024 - Feb 2025

1 year

Test Manager: MW/OS Interlocking System (Railway Interlocking Systems)

Pintsch GmbH & Co. KG

Project for Deutsche Bahn
Analysis of the current project documents and enhancement of the test concept
Preparation of checklists for requirements analysis regarding testability and test case review
Preparation of onboarding documents for new team members
Participation in presentations and involvement in decisions regarding the hiring of new team members
Leading the test team with members in Romania, Spain and Germany
Allocation and supervision of test tasks for my team members
Definition of the documentation tool to be introduced in consultation with the project manager
Preparation of a concept for introducing automated tests, including the definition of the test tool
Hands-on test case creation, execution and reporting
Participation in management meetings at various levels and taking on tasks for the test team
Preparation of detailed documentation
Tools used: TestConductor, Testona (CTE), VectorCast, Parallel, Ubuntu, Visual Studio Code, Google Cloud, IBM ELM landscape, CENELEC, etc

Jul 2023 - Jan 2024

7 months

Senior Tool Analyst: Building a Toolchain for Yocto Projects

Zollern GmbH & Co. KG

Analysis of the current project status in the "ZOLLERN-Drive Guard" project
Analysis of the current integrated development environment running on Linux Yocto
Definition of the documentation tool to be introduced in consultation with the project manager
Preparation of a concept for implementing the general toolchain, including the introduction of Parasoft, Git, VMware and the defined documentation tool
Implementation in accordance with the previously created concept
Preparation of a concept for introducing automated tests, including the definition of the test tool
Development and introduction of the previously defined automated test tool
Preparation of detailed documentation
Tools used: PhyBoard-segin by PHYTEC, WSL2, Ubuntu, Visual Studio Code, VMware, Eclipse, etc

Oct 2022 - May 2023

8 months

Senior Test Analyst: VDZ-WEB Platform

Daimler AG

Design and creation of end-to-end system and integration tests based on processes and requirements
Hands-on execution of E2E and integration tests
Entry, tracking and retesting of bugs/defects after the fix
Tools used: Daimler system landscape, Jira, Confluence, Zephyr, etc

Apr 2022 - Aug 2022

5 months

Senior Test Engineer

ProgressMaker GmbH

Analysis of the Requirement and deriving test from requirements
Hands-on UAT manual and Automated Testing of the Web based Tool
Bug/Defects entry, tracking and retesting
Applied Technologies: Postman for REST Interface, Jira, CodeBeamer, Practitest, Spirateam, etc

Mar 2022 - Oct 2022

8 months

Senior Test Engineer: Engine Control Unit Framework

Rolls Royce Power systems AG

Design and development of device, system and integration test specifications based on requirements, test automation and execution
Implementation of integration and system test scenarios in TPT Fusion
Hands-on test automation and execution
Bug/Defects entry, tracking and retesting after the fix
Tools used: PikeTec TPT Fusion, Synopsis Silver, Eclipse, PTC Integrity, etc

May 2021 - Sep 2021

5 months

Senior Test Engineer: MDI- Soft Gateway System Test

Fresenius Medical Care GmbH

Analysis of requirements and derivation and design of test ideas
CI CD Test with Azure development and execution
Implementation of integration and system test scenarios in Python3
IoT platform (Azure hosted) API test via Rest interface with Visual Studio code
Hands-on manual testing, test automation and test execution
Bug/Defect entry, tracking and retesting after the fix
Tools used: Azure DevOps (Pipeline, Test Plan, Sprint Boards), SharePoint, Docker containers, Git, VM Ware, Virtual machine, WSL Ubuntu, Python in Visual Studio code, etc

Jan 2021 - May 2021

5 months

Senior Test Engineer: iMOW Firmware Integration Test

Andreas STIHL AG & Co. KG

Analysis of requirements and derivation and design of test ideas
CI CD Test with Bamboo development and execution
Implementation of integration and system test scenarios in Gherkin
IoT platform (Azure hosted) test via Rest interface with Postman
Hands-on manual testing and test automation
Bamboo plans configuration and execution
Bug/Defect entry, tracking and retesting after the fix
Tools used: Confluence, Jira, Bit bucket, Bamboo, Bamboo remote Agent, WSL, Python behave with Visual studio code, etc

Jan 2020 - Oct 2020

10 months

Test Lead Engineer

BDT Media Automation GmbH

API test planning
Test effort and cost estimation
Test reporting and documentation
Coaching team members on topics such as: test processes, tools (SCM, Ride from Robot Framework, Python, Helix from Pefrofrce, etc)
Support and optimization of agile test processes (KANBAN, iterative and non-iterative)
Hands-on manual and automated test execution with Robot Framework for firmware embedded software for MultiStak (Midsize Tape libraries) and MultiStor (small size Tape libraries) projects
Updating software versions
Commissioning prototypes
Requirements reviews, test case creation, automation and execution
Test concept creation
Coordination of requirements with feature owners and customers
Task allocation, review, general administrative activities and team leadership
Tools used: Robot Framework, Python, Helix from Perforce, SCM, Postman / SaopUI (RESTFUL API)
Dynamic analysis (system level): Nessus/ Open VAS, Metasploit

Sep 2018 - Nov 2019

1 year 3 months

Senior ADAS Test and Verification Engineer

MAGNA Electronics Europe GmbH & Co. KG

Tester of driver assistance systems (camera)
Integration of driver assistance systems into customer vehicles, testing (in the laboratory and test vehicle)
Updating software versions
Commissioning prototypes
Support with testing components in the laboratory (HIL) and vehicles
Requirements reviews, test case creation, automation and execution
Documentation of results
Test concept creation
Coordination of requirements with feature owners and customers
General administrative activities
Tools used: CANoe, PTC Integrity, Windchill, MITE, GPEP, etc
Standards: ISO 26262, IEEE 828 / 29119-1, ISO/IEC 15504, NHTSA

Aug 2016 - Sep 2018

2 years 2 months

Germany

SCRUM Cross Functional Senior Test Engineer and Agile Process Consultant

Philips Medezinischsysteme GmbH

Agile tester of patient monitoring software on monitors and measurement servers (IntelliVue monitors, MMS X2, Apollo X3, etc.)
Requirements management and ensuring test coverage
Analysis of technical and customer specifications, design and creation of test cases
Creation of test plans and test scenarios
Manual and automated execution of functional, regression, installation, stress, load and performance tests, white-box tests, and penetration tests, as well as retesting after defect resolution
Execution of integration and system tests using the following methods: requirements-based, risk-based, use-case-based and exploratory testing
Conducting peer reviews with team members
Agile process consultant in various SCRUM teams
Commissioning and testing hardware prototypes
Defect creation (BUGs and CRs) in the ticket system (TFS), bug verification
Documentation and reporting of results
Tools used: KALI, TFS, Static code analysis (Coverity for coding guardlines, Black Duck for CVE comparison, Qark for mobile devices testing), Systems analysis (MBSA, MBASA), Dynamic analysis (Nessus/ Open VAS, Metasploit), FUZZing (ZAP OSWASP, Tools from Python Script)
Technologies: TFS, TM (Test Center), GIT, DMS
Standards: ISO 9000, 13485, IEC 9001, 62304, 60601-1-2
Operating systems: Windows and Unix

Apr 2016 - May 2017

1 year 2 months

DOORs-Based Test Automation zFAS Driver Assistance Autonomous Parking

Valeo Switches and Sensors GmbH

Automation of zFAS functions from DOORs (APC, RPA, PTS, SVS, Ultrasound, Diagnostics)
Updating software versions
Flashing control units (HIL, cameras, ECU (DSP, HOST, Bluetooth software updates)) in the laboratory
Communication with customers and suppliers
Internal coordination with the client’s project management
Commissioning of prototypes
Documentation of results
General administrative tasks
Organization and moderation of meetings between Valeo and Eeins Test Team
General zFAS function testing
Tools used: CANoe, Eclipse (Java), CANalyzer, FlexRay, SC box, ADTF, LVDS, Frame grabber, Serena

Nov 2015 - Apr 2016

6 months

Tester - Tuner Card in NTG5.5 (Melco)

Hirschman Car Communication GmbH

Audi TV Tuner MIB Gen.2+ and infotainment systems
Testing of country-specific tuner card functions (European, Japanese, US, Korean)
Integration testing in NTG5.5 Melco Head Unit and module testing
Updating software versions
Flashing control units (ring software updates) in vehicles and the laboratory
Test automation with Visual Basic and Vector
Commissioning of prototypes
Support with testing components in the laboratory (HIL) and vehicles
Tools used: CANoe, MOST(150), CATS, VN2640, Monaco, SMB, IZT, SFC, Diagnostic I/O box, Spectrum Analyzer, Code Beamer, Team City

Jan 2015 - Oct 2015

10 months

Sindelfingen, Germany

Resident at Daimler AG (Tester of PARKMAN Functions)

Valeo Vision Systems

Testing of PARKMAN functions: APC, RPA, PTS, SVS, Ultrasound
Updating software versions
Flashing control units (HIL, cameras, ECU, Bluetooth software updates) in vehicles and the laboratory
Calibration on Target, Online, etc.
Communication with customers and suppliers and ensuring data exchange
Internal coordination with the client’s project management
Sample logistics and commissioning of prototypes
Support with testing components in the laboratory and vehicles (ATP Papenburg Test Center)
Ensuring compliance with the performance interface agreement
Fault analysis and diagnostics of the PARKMAN control unit in the vehicle and on the bench
Coordination of hardware/software interfaces with the client
Managing and processing OP list items from various meetings
Documentation of results and general administrative tasks
Organization and moderation of meetings between Valeo and DAG
General infotainment function testing
Tools used: CANoe, CANalyzer, FlexRay, Monaco, SC box, ADTF, LVDS, Framegrabber, Serena, HP ALM, G25, First Aid Training, Valeo Driving License, T1 and T2 driving authorizations

Feb 2014 - Dec 2014

11 months

Agile Module and Product Tester for Railway AzLE System

Thales Transportation Systems GmbH

Agile testing of C code with CANTATA ++
Analysis of requirements, UML model, C code, implementation, and execution of Black Box, Whitebox, Coverage, Equivalent Partitioning, and Boundary Value tests
Code reading with QuickRev and defined rules
Communication with customers and suppliers
Support for team colleagues in using CANTATA ++
Commissioning and testing of hardware prototypes
Support with testing in the laboratory (HIL) and on the test site (Vaihingen Enz railway station)
Creating issues in the ticket system (ClearQuest and CMC), fault analysis, and diagnostics of the axle counter control unit
Documentation and reporting of results
Tools used: CANTATA ++, Eclipse, DOORS, ClearCase, ClearQuest, Rhapsody, Test Director, Reqtify for Traceability, QAC, QuickRev
Technologies: I²C bus, ISDN/V23, CAN
Standards: CENELEC EN 50128, SIL 4, MISRAC

Jan 2013 - Dec 2013

1 year

Rüsselsheim, Germany

Resident at GM - OPEL (Tester of Electric Power Steering EPS)

ZF-Lenksysteme GmbH

Testing of Electric Power Steering (EPS)
Updating software versions and flashing control units
Communication with customers and suppliers and ensuring data exchange
Internal coordination with the client’s project management
Sample logistics and commissioning of prototypes
Support with testing components in the laboratory (HIL) and vehicles (Dudenhofen Test Center)
Ensuring compliance with the performance interface agreement
Fault analysis and diagnostics of steering systems in the vehicle and on the bench
Coordination of hardware/software interfaces with the client
Managing and processing OP list items from various meetings
Documentation of results and general administrative tasks
Organization and moderation of meetings between GM and ZF LS
Software release via SharePoint and change management via EWOs in E Square
Creation and processing of 3PDs
Tools used: CANoe, CANalyzer, GM tools and software systems (E Square, ESIMS, PRTS, SharePoint etc.), ZF Production Process and Tools Training

Jan 2012 - Sep 2012

9 months

Rüsselsheim, Germany

Resident at GM - OPEL (Driver Assistance Systems Tester)

MAGNA Electronics Europe GmbH & Co. KG

Tester of driver assistance systems (camera)
Integration of driver assistance systems into customer vehicles, testing (in the laboratory and test vehicle)
Updating software versions and flashing control units
Communication with customers and suppliers and ensuring data exchange
Internal coordination with the client's project management
Sample logistics and commissioning of prototypes
Support with testing components in the laboratory (HIL) and vehicles (throughout Europe)
Ensuring compliance with the performance interface agreement
Fault analysis and diagnosis of driver assistance systems
Coordination of hardware/software interfaces with the client
Managing and processing the open points list and documenting the results
General administrative tasks
Tools used: CANoe, CANalyzer, GM Tools and software systems (E Square, ESIMS, PRTS, SharePoint, MKS, etc.)

Nov 2011 - Dec 2011

2 months

Software Tester for Body and Safety Control Units (BCM)

Continental Automotive GmbH

Quality assurance of functional and technical specifications
Creation and review of test cases, linking test cases to requirements
Test coverage analysis
Test automation
MBT (Model-Based Testing)
Tools used: IMB Rational Change, DOORS, IBM ChangeSynergy, Sharepoint, Teststand from National Instrument, Microsoft SQL and Oracle RDMS, MATLABSIMULINK, Embedded Test, TargetLink (dSpace), CANoe, LIN, HIL test execution

Aug 2010 - Oct 2011

1 year 3 months

Software Tester for Telecommunication Systems

Dell / Perot Systems

Quality assurance of functional and technical specifications
Creation and execution of test cases
Documentation and reporting of test results
Test automation
Creation and presentation of Release Content Documentation
Tools used: Bugzilla, SOAP UI, Flextest, JUnit, Subversion, Eclipse, IBM WebSphere, Imbus Test Bench, SQL Developer and Oracle RDMS

Mar 2010 - Jul 2010

5 months

Software Engineer, Test and Quality Assurance Engineer

Business Operation Systems GmbH

Business process management: software development, testing, process optimization and management
Template creation
Analysis of customer requirements, technical feasibility, specification design and Keyser coaching for test case creation
Creation of test plans and test scenarios
JUnit and Selenium test automation for component and GUI tests
Java-based web application development and further development
Technologies used: Trac, Test Link, Eclipse

Aug 2009 - Nov 2009

4 months

Berlin, Germany

Media, Digital TV Guide Quality Assurance Engineer

Axel Springer Digital TV Guide GmbH

Business process management: software development and test process optimization
Analysis of customer requirements and technical feasibility, design and test case creation
Creation of test plans and test scenarios
Execution of manual tests and re-tests (functional, usability, installation, platform, stress, regression, load, performance)
Execution of integration and system tests of the application
Evaluation of test results, creation of statistics and reporting
Trace/log file analysis
C# error debugging
Technologies used: BugZilla, TestLink, Window Media Centre, XBOX 360, DVBT Tuner, EPG, TCP/IP, etc

Jan 2007 - Mar 2009

2 years 3 months

Germany

Automotive, Infotainment Quality Assurance Engineer

HarmanBecker

Quality Assurance Engineer for embedded systems (infotainment)
Analysis of technical and customer specifications, design and creation of test cases
Creation of test plans and test scenarios
Execution of tests and re-tests (functional, regression, installation, stress, load, performance)
Execution of integration and system tests (laboratory and field tests, navigation, media, Bluetooth, TV, SDS, RSE, UCI, Rear View Camera, PDC)
Evaluation of test results and creation of statistics
Compliance with the quality testing strategy based on CMMI and SPICE standards
Updates, downgrades and flashing of software modules
Test automation in the Harman/Becker test framework using VBA
Trace/log file analysis
Telematics technologies used: Blue Pirat, Gnlogger, terminal programs, simulation testing with CAN/MOST/Optolyzer
Technologies used: QNX/Linux/Unix shell scripts, test management systems, DOORS, RDS Coder, NEC Flasher, DASH board, etc
Projects at Daimler Automobile (Sindelfingen, DE) and PSA Automobile (Belchamp, FR) as an infotainment quality engineer: test drives, identification of weaknesses, re-tests and quality test reports.

May 2002 - Dec 2006

4 years 8 months

Seeheim-Jugenheim, Germany

Software Engineer and Quality Manager

IRL Industriesteuerungen GmbH

Software modeling with UML (OO analysis, design and implementation with ObjectiF and Visual C++)
Reverse and forward engineering of software modules
Creation of functional specifications and requirements specifications
Database development (network DB, Entity Relationship Model)
Software version control (SourceSafe, Instep)
Business process management (analysis, design and implementation according to the V-Modell XT)
Software validation according to GAMP and 21 CFR Part 11 guidelines
Execution of functional and integration tests in the Pharma21 quality assurance software
Risk analysis based on GAMP specifications and creation of SOPs
Preparation of in-house audits and creation of documents for ISO 9000-3 certification
Conducting training sessions and supervising interns
Systems engineer at Reckitt Benckiser – JB Pharmatron (Nothingham, UK): demonstration of new software releases, customizing and training.
Systems engineer at Pharmatron Inc (USA) and Pharmatron AG (Switzerland): training of sales partners and presentation of new systems.
Systems engineer at Novartis (Orleans, FR): Pharma21 software system update, implementation of electronic signature software.
Systems engineer at BMW (München, DE): implementation of tire testing machine software and key-user training.
Systems engineer for pharmaceutical customers (STADA, Schering, DHU, Bayer, Merck, Abbott): implementation of Pharma21, integration with LIMS, validation, verification, training and first-level support.

Jul 2001 - Apr 2002

10 months

Working Student

T-Systems AG

Implementation of a time and effort tracking tool
Creation of user documentation in German and English
End-user training

Jul 2000 - Dec 2000

6 months

Working Student

Scope Consulting GmbH

Testing and re-testing of accounting software

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Automotive, Pharmaceutical, Manufacturing, Information Technology, Healthcare, and Telecommunication.

Automotive

Pharmaceutical

Manufacturing

Information Technology

Healthcare

Telecommunication

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Quality Assurance, Product Development, Information Technology, Project Management, and Customer Service.

Quality Assurance

Product Development

Information Technology

Project Management

Customer Service

Skills

Sap Bi
Windows 2000/2008 Server, Windows Professional, Linux, Qnx
C, Visual C++, Java, Javascript, Html, Sql, Xml, Php, C#, Visual Basic
Ms Office, Visio, Oracle, Doors, Sharepoint, Moss, Instep, Objectif, Photoshop, Innovator, Ms Sourcesafe, Windows Media Center, Testlink, Bugzilla, Ibm (Clearcase, Clearquest, Rational Change, Change Synergy), Hp Alm, Selenium, Jira, Teamcity, Jenkins, Sap Bw

Languages

German

Native

English

Native

French

Advanced

Education

Oct 2004 - Jun 2007

Fachhochschule Ludwigshafen

Master of Business Administration & International Management Consulting · Business Administration & International Management Consulting · Ludwigshafen, Germany

Oct 1999 - Jun 2003

Fachhochschule Darmstadt

Bachelor of Science · Computer Science (Informatik) · Darmstadt, Germany

Oct 1997 - Jun 1999

Government Bilingual High School Essos

Abitur · Yaoundé, Cameroon

Certifications & licenses

Fuhrerscheine PKW Klasse 3

ObjectiF (CASE Tool für UML Modellierung und Dokumentation)

Statistics

Experience

Total positions 24

Experience in Automotive 12.5 y

Avg length 11 m

Longest experience 4 y 7 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Test Manager: MW/OS Interlocking System (Railway Interlocking Systems), Senior Tool Analyst: Building a Toolchain for Yocto Projects, Senior Test Analyst: VDZ-WEB Platform

Main industries Automotive, Pharmaceutical, Manufacturing

Main business areas Quality Assurance, Product Development, Information Technology

Qualifications

Highest degree Master

Certifications earned 5

Profile

Member since

July 2025

Last update

September 2026

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Frequently asked questions

Have questions? Find more information here.

Sebastian is based in Hanau, Germany.

Sebastian speaks the following languages: German (Native), English (Native), French (Advanced).

Sebastian has at least 22 years of experience. During this time, Sebastian has worked in at least 23 different roles and for 23 different companies. The average length of individual experience is 1 year and 11 months. Note that Sebastian may not have shared all experience and actually has more experience.

Based on recent experience, Sebastian would be well-suited for roles such as: Test Manager: MW/OS Interlocking System (Railway Interlocking Systems), Senior Tool Analyst: Building a Toolchain for Yocto Projects, Senior Test Analyst: VDZ-WEB Platform.

Sebastian's most recent position is Test Manager: MW/OS Interlocking System (Railway Interlocking Systems) at Pintsch GmbH & Co. KG.

In recent years, Sebastian has worked for Pintsch GmbH & Co. KG, Zollern GmbH & Co. KG, Daimler AG, ProgressMaker GmbH, and Rolls Royce Power systems AG.

Sebastian is most experienced in industries like Automotive, Pharmaceutical, and Manufacturing. Sebastian also has some experience in Information Technology, Healthcare, and Telecommunication.

Sebastian is most experienced in business areas like Quality Assurance, Product Development, and Information Technology. Sebastian also has some experience in Project Management and Customer Service.

Sebastian has recently worked in industries like Manufacturing, Automotive, and Energy.

Sebastian has recently worked in business areas like Quality Assurance, Information Technology, and Product Development.

Sebastian holds a Master in Business Administration & International Management Consulting from Fachhochschule Ludwigshafen and a Bachelor in Computer Science (Informatik) from Fachhochschule Darmstadt.

Sebastian has 5 certificates. Among them, these include: AWS Cloud Solution Architekt Zertifizierung, Azure Fundamentals, and Fuhrerscheine PKW Klasse 3.

The availability of Sebastian needs to be confirmed.

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Daily rate avg. 833 €

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Median rate 904 €

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Calculated based on our freelancers’ daily rates as of 27 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.