Sebastian Nkwenti - Test Manager: MW/OS Interlocking (Railway Interlocking Systems)

Q: Where is Sebastian based?

Sebastian is based in Hanau, Germany .

Q: What languages does Sebastian speak?

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

Q: How many years of experience does Sebastian have?

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.

Q: What is Sebastian's latest experience?

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

Q: What companies has Sebastian worked for in recent years?

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 .

Q: Which industries is Sebastian most experienced in?

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

Q: Which business areas is Sebastian most experienced in?

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

Q: Which industries has Sebastian worked in recently?

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

Q: Which business areas has Sebastian worked in recently?

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

Recommended expert

Hanau, Germany

Experience

Mar 2024 - Feb 2025

1 year

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

Pintsch GmbH & Co. KG

Project for Deutsche Bahn
Performed as-is analysis of the current project documents and enhanced the test concept
Created checklists for requirements analysis on testability and for test case reviews
Prepared onboarding materials for new team members
Took part in interviews and helped make hiring decisions for new team members
Led the test team with members in Romania, Spain, and Germany
Assigned and oversaw test tasks for my team members
Defined the documentation tool to implement in consultation with the project manager
Designed the concept for introducing automated tests, including defining the test tool
Hands-on creation, execution, and reporting of test cases
Attended management meetings at different levels and took on tasks for the test team
Created detailed documentation
Tools used: TestConductor, Testona (CTE), VectorCast, Parallel, Ubuntu, Visual Studio Code, Google Cloud, IBM ELM environment, CENELEC, etc

Jul 2023 - Jan 2024

7 months

Senior Tool Analyst: Toolchain setup for Yocto projects

Zollern GmbH & Co. KG

Performed an as-is analysis of the current project status in the "ZOLLERN-Drive Guard" project
Analyzed the current integrated development environment running on Linux Yocto
Defined the documentation tool to implement in consultation with the project manager
Designed the concept for implementing the overall toolchain, including the introduction of Parasoft, Git, VMware, and the chosen documentation tool
Carried out the implementation following the previously designed concept
Designed the concept for introducing automated tests, including defining the test tool
Developed and introduced the previously defined automated testing tool
Created 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

Designed and created end-to-end system and integration tests based on processes and requirements
Hands-on execution of E2E and integration tests
Logged bugs/defects, tracked them, and retested after fixes
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

Concept and development of device, system, and integration tests, specification of tests based on requirements, and test automation and execution
Implemented integration and system test scenarios in TPT Fusion
Hands-on automation and test execution
Logged bugs/defects, tracked them, and retested after fixes
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 deriving test ideas and their design
CI/CD testing with Azure development and execution
Implementation of integration and system test scenarios in Python3
IoT platform (Azure hosted) API testing via REST interface with Visual Studio Code
Hands-on manual, automation and test execution
Logging bugs/defects, tracking and retesting after fixes
Tools used: Azure DevOps (Pipelines, Test Plan, Sprint Boards), SharePoint, Docker containers, Git, VMware, virtual machines, 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 deriving test ideas and their design
CI/CD testing with Bamboo development and execution
Implementation of integration and system test scenarios in Gherkin
IoT platform (Azure hosted) testing via REST interface with Postman
Hands-on manual and automated test execution
Configuring and executing Bamboo plans
Logging bugs/defects, tracking and retesting after fixes
Tools used: Confluence, Jira, Bitbucket, 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
Estimation of test effort and costs
Test reporting and documentation
Coaching team members on topics like test process, tools (SCM, RIDE for Robot Framework, Python, Perforce Helix, etc)
Managing and optimizing 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
Reviewing requirements, creating test cases, automating and executing tests
Creating test concepts
Aligning requirements with feature owners and customers
Task allocation, review, general administrative tasks and team leadership
Tools used: Robot Framework, Python, Perforce Helix, SCM, Postman / SoapUI (RESTful API)
Dynamic analysis (system level): Nessus / OpenVAS, Metasploit

Sep 2018 - Nov 2019

1 year 3 months

Senior ADAS Test and Verification Engineer

MAGNA Electronics Europe GmbH & Co. KG

Testing driver assistance systems (camera)
Integration of driver assistance systems into customer vehicles, testing (in the lab and in test vehicles)
Updating software versions
Commissioning prototypes
Supporting testing of parts in the lab (HIL) and in vehicles
Reviewing requirements, creating test cases, automating and executing tests
Documenting results
Creating test concepts
Aligning requirements with feature owners and customers
General administrative tasks
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 testing of patient monitoring software on monitors, 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
Creating test plans and test scenarios
Manual and automated execution of tests and re-tests after bug fixes for functional, regression, installation, stress, load and performance tests, white-box tests, and penetration tests
Conducting integration and system tests using these methods: requirements-based, risk-based, use case-based, and exploratory testing
Conducting peer reviews with team members
Agile process consulting in various SCRUM teams
Commissioning and testing hardware prototypes
Creating defects (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 guidelines, Black Duck for CVE checks, Qark for mobile device testing), system analysis (MBSA, MBASA), dynamic analysis (Nessus / OpenVAS, Metasploit), fuzzing (OWASP ZAP, Python script tools)
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 for zFAS Driver Assistance Autonomous Parking

Valeo Schalter und Sensoren GmbH

Automation of zFAS functions in DOORs (APC, RPA, PTS, SVS, ultrasonic, diagnostics)
Updating software versions
Flashing control units (HIL, cameras, ECUs (DSP, HOST, Bluetooth software updates)) in the lab
Communication with customers and suppliers
Internal coordination with the client's project management
Commissioning prototypes
Documenting results
General administrative tasks
Organizing and moderating 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 country-specific tuner card functions (Europe, Japan, US, Korea)
Integration testing on NTG5.5 Melco head unit and module testing
Updating software versions
Flashing control units (round of software updates) in vehicle and lab
Automating tests with Visual Basic and Vector
Commissioning prototypes
Support testing parts in the lab (HIL) and vehicles
Tools used: CANoe, MOST (150), CATS, VN2640, Monaco, SMB, IZT, SFC, diagnostic I/O box, spectrum analyzer, CodeBeamer, TeamCity

Jan 2015 - Oct 2015

10 months

Sindelfingen, Germany

Resident at Daimler AG (PARKMAN Functions Tester)

Valeo Vision Systems

Testing PARKMAN functions: APC, RPA, PTS, SVS, ultrasonic
Updating software versions
Flashing control units (HIL, cameras, ECU, Bluetooth software updates) in vehicle and lab
Calibration on target, online, etc.
Communication with customers and suppliers and ensuring data exchange
Internal coordination with client's project management
Sample logistics and commissioning prototypes
Support testing parts in lab and vehicles (ATP Papenburg Test Center)
Ensuring compliance with performance interface agreement
Fault analysis and diagnosis of the PARKMAN control unit in the vehicle and on the bench
Coordination of hardware/software interfaces with the client
Managing and processing action list items from various meetings
Documenting results and general administrative tasks
Organizing and moderating meetings between Valeo and DAG
General infotainment function testing
Tools used: CANoe, CANalyzer, FlexRay, Monaco, SC box, ADTF, LVDS, frame grabber, 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 conducting black box, white box, coverage, equivalent partitioning and boundary value tests
Code reading with QuickRev and defined rules
Communication with customers and suppliers
Supporting team colleagues in the use of CANTATA++
Commissioning and testing hardware prototypes
Support testing in the lab (HIL) and test site (Vaihingen Enz station)
Creating tickets in the ticketing system (ClearQuest and CMC), fault analysis and diagnosis of 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, MISRA C

Jan 2013 - Dec 2013

1 year

Rüsselsheim, Germany

Resident at GM - OPEL (Electric Power Steering Tester)

ZF-Lenksysteme GmbH

Testing electric power steering (EPS)
Updating software versions and flashing control units
Communication with customers and suppliers and ensuring data exchange
Internal coordination with client's project management
Sample logistics and commissioning prototypes
Support testing parts in the lab (HIL) and vehicles (Dudenhofen Test Center)
Ensuring compliance with performance interface agreement
Fault analysis and diagnosis of steering units in the vehicle and on the bench
Coordination of hardware/software interfaces with the client
Managing and processing action list items from various meetings
Documenting results and general administrative tasks
Organizing and moderating meetings between GM and ZF LS
Software release via SharePoint and change management via EWOs in E Square
Creating and processing 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

Driver assistance systems tester (camera)
Integration of driver assistance systems into customer vehicles, testing (in lab and test vehicle)
Updating software versions and flashing control units
Communicating with customers and suppliers and ensuring data exchange
Internal coordination with the customer's project management
Prototype logistics and commissioning
Supporting parts testing in the lab (HIL) and in vehicles (Europe-wide)
Ensuring compliance with the performance interface agreement
Error analysis and diagnosis of driver assistance systems
Aligning hardware/software interfaces with the customer
Maintaining and handling the open point list and documenting 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 Unit (BCM)

Continental Automotive GmbH

Quality assurance of functional and technical specifications
Creating and reviewing test cases, linking test cases to requirements
Test coverage analysis
Performing test automation
MBT (Model-based Testing)
Tools used: IBM Rational Change, DOORS, IBM ChangeSynergy, SharePoint, National Instruments TestStand, Microsoft SQL and Oracle RDBMS, MATLAB/Simulink, Embedded Test, TargetLink (dSpace), CANoe, LIN, HIL testing

Aug 2010 - Oct 2011

1 year 3 months

Software Tester of Telecommunication Systems

Dell / Perot Systems

Quality assurance of functional and technical specifications
Creating test cases and executing tests
Documenting and reporting test results
Performing test automation
Creating and presenting release content documentation
Tools used: Bugzilla, SOAP UI, Flextest, JUnit, Subversion, Eclipse, IBM WebSphere, Imbus Test Bench, SQL Developer and Oracle RDBMS

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
Analyzing customer requirements, technical feasibility, drafting specifications and key user coaching in test case creation
Creating test plans and test scenarios
JUnit and Selenium test automation for component and GUI tests
Java-based web application development and enhancements
Technologies used: Trac, TestLink, 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
Analyzing customer requirements and technical feasibility, design and test case creation
Creating test schedules and test scenarios
Performing manual tests and retests (functional, usability, installation, platform, stress, regression, load, performance)
Performing integration and system tests of the application
Analyzing test results, creating statistics and reporting
Trace/log file analysis
C# error debugging
Technologies used: Bugzilla, TestLink, Windows Media Center, XBOX 360, DVB-T tuner, EPG, TCP/IP, etc.

Jan 2007 - Mar 2009

2 years 3 months

Germany

Automotive Infotainment Quality Assurance Engineer

HarmanBecker

Quality assurance engineer in embedded systems (infotainment)
Analyzing technical and customer specifications, designing and creating test cases
Creating test plans and test scenarios
Executing tests and retests (functional, regression, installation, stress, load, performance)
Conducting integration and system tests (lab and field tests: navigation, media, Bluetooth, TV, SDS, RSE, UCI, rear view camera, PDC)
Evaluating test results and creating statistics
Adhering to the quality test strategy based on CMMI and SPICE standards
Performing updates, downdates, 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 tests with CAN/MOST/Optolyzer
Technologies used: QNX/Linux/Unix shell scripting, 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, identifying weaknesses, retesting, and quality test reports.

May 2002 - Dec 2006

4 years 8 months

Seeheim-Jugenheim, Germany

Software Engineer and Quality Manager

IRL Industriesteuerungen GmbH

Software modelling with UML (OO analysis, design, and implementation using ObjectiF and Visual C++)
Reverse and forward engineering of software modules
Creating functional specifications and requirement documents
Database development (network DB, entity relationship model)
Software version control (SourceSafe, Instep)
Business process management (analysis, design, and implementation according to the V-Model XT)
Software validation according to GAMP and 21 CFR Part 11 guidelines
Executing functional and integration tests in the Pharma21 quality assurance software
Risk analysis based on GAMP specifications and creation of SOPs
Preparing in-house audits and creating documents for ISO 9000-3 certification
Conducting training sessions and supervising interns
System engineer at Reckitt Benckiser – JB Pharmatron (Nottingham, UK): demonstrating new software releases, customizing, and training.
System engineer at Pharmatron Inc (USA) and Pharmatron AG (Switzerland): training sales partners and presenting new systems.
System engineer at Novartis (Orleans, FR): Pharma21 software system update and implementation of electronic signature software.
System engineer at BMW (Munich, DE): implementing tire test bench software and key-user training.
System engineer at pharma customers (STADA, Schering, DHU, Bayer, Merck, Abbott): implementing Pharma21, integration with LIMS, validation, verification, training, and first-level support.

Jul 2001 - Apr 2002

10 months

Working Student

T-Systems AG

Implementing an effort tracking tool
Creating user documentation in German and English
End-user training

Jul 2000 - Dec 2000

6 months

Working Student

Scope Consulting GmbH

Testing and re-testing accounting software

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Automotive (12.5 years), Pharmaceutical (4.5 years), Manufacturing (4 years), Information Technology (4 years), Healthcare (2.5 years), and Telecommunication (1 year).

Automotive

Pharmaceutical

Manufacturing

Information Technology

Healthcare

Telecommunication

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Quality Assurance (20.5 years), Product Development (14 years), Information Technology (12 years), Project Management (1 year), and Customer Service (1 year).

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

Ludwigshafen University of Applied Sciences

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

Oct 1999 - Jun 2003

Darmstadt University of Applied Sciences

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

Oct 1997 - Jun 1999

Government Bilingual High School Essos

Abitur (German high school diploma) · Yaoundé, Cameroon

Certifications & licenses

AWS Cloud Solution Architect Certification

Azure Fundamentals

Car driver's license (class 3)

ISEB/ISTQB: Foundation Certificate In SOFTWARETESTING

ObjectiF (CASE tool for UML modeling and documentation)

Profile

Created

July 2025

Last Update

September 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Sebastian based?

Sebastian is based in Hanau, Germany.

What languages does Sebastian speak?

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

How many years of experience does Sebastian have?

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.

What roles would Sebastian be best suited for?

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

What is Sebastian's latest experience?

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

What companies has Sebastian worked for in recent years?

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.

Which industries is Sebastian most experienced in?

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

Which business areas is Sebastian most experienced in?

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

Which industries has Sebastian worked in recently?

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

Which business areas has Sebastian worked in recently?

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

What is Sebastian's education?

Sebastian holds a Master in Business Administration & International Management Consulting from Ludwigshafen University of Applied Sciences and a Bachelor in Computer Science (Informatics) from Darmstadt University of Applied Sciences.

Does Sebastian have any certificates?

Sebastian has 5 certificates. Among them, these include: AWS Cloud Solution Architect Certification, Azure Fundamentals, and Car driver's license (class 3).

What is the availability of Sebastian?

Sebastian is immediately available full-time for suitable projects.

What is the rate of Sebastian?

Sebastian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.