Kai Tetzlaff

Maintain PON/BNG test system.Maintain PON/BNG test system. Skills: Python (Programming Language) · Docker

Design Advanced Connected Drive Test (ACDT) system, a V2X test system for 802.11p & C-V2X based vehicle-to-vehicle communication. Lead SW development team. Technologies: ETSI ITS, V2X, Python, C/C++, Bash, Protobuf, gRPC, CMake, Docker, Vagrant, Packer, Carla, PreScan, GitLab, Jira, Linux

Design & develop Clojure based REST API service for managing test results in PTC (MKS) Integrity. Technologies: Clojure, PTC Integrity, Ansible, OpenAPI, GitLab, Linux

Analyze, debug and fix BNG test system, integrate new devices (Spirent TestCenter, LER and LNS, ...), design & develop XML/Python/Git based tool chain for test case definition, status reporting & maintenance. Technologies: Perl, PostgreSQL, Python, Spirent TestCenter, NIKSUN NetVCR, Cisco, GitLab, Linux

Develop SW framework for NSN base stations (GSM/GPRS, WCDMA, LTE) using C on Linux (and OSE).

Design and implement a radio access technology independent user-plane data handler for the R&S CMW500 platform. Technologies: C++, IPv6, ICMPv6, IPv4, MobileIP, DHCP, IMS, LTE, WCDMA, GSM, CDMA2000, WLAN

Design, implement and maintain an extensible, cross-platform, native or cross-compiling build system that allows building software for Windows, Linux, VxWorks and OSE operating systems from a single set of make files. Technologies: GNU make, non-recursive make, Perl, native- and cross-builds, gcc, MSVC++, clang, ASN.1, TTCN-3, XML, XSLT, Unix/DOS scripting, continuous integration (Jenkins/Hudson)

Design the test adapter for the ETSI/3GPP LTE Conformance Test System on R&S CMW500 and integrate it with the ETSI/3GPP ATS (Abstract Test Suite). Implement 3GPP LTE Conformance Tests in TTCN-3 as a member of the ETSI Specialist Task Force 160 (STF160). Technologies: C++, TTCN-3, eMM, eSM

Design and implement an innovative control interface for the Rohde & Schwarz CMW500 mobile communication tester. Technologies: C++, generated code and documentation (XML, XSLT, XML Schema)

Design and implement NAS (Non Access Stratum) protocol stack layers for WCDMA and GSM. Develop user-plane data to applications interface layer (IPv4, voice/video loopback, data generator, video call). Technologies: C++, 3GPP NAS protocols (MM/GMM, CC, SM, SMS, TC)

Design and implement an application level conformance test system for the Multimedia Messaging Service (MMS) and Push-to-Talk over Cellular (PoC) according to 3GPP and Open Mobile Alliance (OMA) specifications. Technologies: Java, MMS, SMS, WAP, PoC, HTTP, SIP, SigComp, H.323, H.324

Provide technical expertise and proof of concept demos to prospect customers of Java (embedded) technology. Main focus on mobile phone and smart card manufacturers. Technologies: J2ME, MIDP, JavaCard, OSGi, J2SE, J2EE, ...

Software development/architecture, requirements engineering, project management. Technologies: C/C++, Java (embedded), Perl, Abis, VxWorks, GATS, MoTiV

SW development, SW tests