Senior Software Development Engineer

7/2018 – offen

C/C++ software development of BMW Autosar Core (BAC-aBAC) software modules
Classic and Adaptive Autosar Software Component development

Responsible for:

Requirement analysis
Implementation of SWCs – using C/C++11
Unit testing – using Cunit, GTest, GMock

C++

4/2011 – 2/2018

Leading software development engineer and technical expert of IMS applications on R&S test platform CMW-500

Responsible for:

Creating IMS over LTE protocol test requirement specifications to the R&S test platform CMW 500
Analyzing requirements of network operators such as Verizon, AT&T, T-Mobile, China Mobile
Test solution proposal based on customer test specifications and support requests
Project planning and coordination in product development teams
Architectural model introduction for integration test solutions in our test platform
Test case design and software architecture according to 3GPP and IETF standards
IMS Test case implementation and continuous integration into the test environment
Test automation preparation and regression session establishment
Delivery creation and tracking with test solution deliveries
Test case verification and validation with network operators
Customer visit in USA for requirement discussions and feedback
Support, troubleshooting and feedback for customers

Covered IMS features and topics:

IMS registration, authentication, registration retry
IMS voice over LTE, video over LTE, conference calls
E911
Event subscriptions (reg, presence, conference)
Network resource, bearer management, QoS
Presence
RCS (Rich Communication Suite) features: IP Messaging, File Transfer and Capability Discovery (CPIM and MSRP-based)
IPsec
LTE and interRAT handover, SRVCC handover, WLAN offload

Other projects:

Verification of ETSI conformance IMS test cases
R&D specific test development for IMS
Extension of the testing framework, codecs, system adapter
Eclipse plug-in development, C++ and Java code
IMS server on CMW-500 protocol tester - TTCN-3 based
OMA RCS test case verification

Test Automation, TTCN-3, C++, Concurrent Versions System, Eclipse, Git, Java (allg.), Jenkins, Microsoft Visual Studio, SIP (Session Initiation Protocol)

1/2008 – 4/2011

University thesis writing - technical support from Test Competence Center
XSD to TTCN-3 compiler - command line tool written in C++ using STL (xsd2ttcn)

Development of TITAN:
cross-platform TTCN-3 to C++ compiler and test-running environment
software development, implementation of the core code, testports, protocol modules, plugins, etc.
regression test system development

Eclipse TITAN graphical test environment plug-in implementation in Java

Now all parts are open-source: http://projects.eclipse.org/projects/tools.titan

Functional and performance test development in various projects
implementation in TTCN-3 language using TitanSim framework designed in Ericsson TCC

IMS (Internet Multimedia Subsystem) framework design and development in Stockholm
in cooperation with Sweden and India team members

TTCN-3, Testdesign (IT), Software Design, Objektorientierte Design (OOD), C++