Senior Systems Test Engineer Resume

SUMMARY:

9 years in Wi - Fi and GPON access systems testing and automation
8 years Physical Layer Algorithms Design & Simulation (OFDM-based Digital Audio Broadcast system)
3 years in in DSP SW Design and Implementation
3 years in C++ Symbian SW Development & Integration

TECHNICAL SKILLS:

Debug Tools: Wireshark, Airopeek, Spectrum Analyzer, VSG (Vector Signal Generator), VSA (Vector Signal Analyzer), Azimuth (Channel Emulator).

Network Test Tools: IxLoad, IxNet, Veriwave, Chariot, Spirent Avalanche, iPerf, mgen.

Automation Tools/Languages: Python, iTest (Spirent), Perl.

Radio Link Simulation Tools: SPW (Signal Processing Worksystem), MATLAB, COSSAP.

Highlevel Computer Languages: C, C++, Java, MATHEMATICA.

IDE: MS Visual Studio, Metrowerks CodeWarrior, Carbide C++

PROFESSIONAL EXPERIENCE:

Confidential

Senior Systems Test Engineer

Responsibilities:

Developed and executed test plan that verifies WiFi interoperability between Confidential equipment (844G, 844E) and various wireless devices manufactured by other companies deployed in Confidential customer networks.
Automated test suites using Python, Robot framework, and Ixia Ethernet data and video traffic generator for Tier 1 provider using GPON access and WiFi devices.

Confidential

Senior Systems Test Engineer

Responsibilities:

Developed and executed software test plans (System, Feature, Stress and Performance) for Cisco Wireless Access Points and Controllers (802.11 a/b/g/n/ac WiFi). Test features included wireless Mesh, RRM (Radio Resource Management), voice, video, multicast. Stress and performance tests included max data throughput, max clients versus radio, direction, traffic type.
Designed, built and configured test beds (switches, routers, access points and controllers) described in the test plans. Built various servers such as Cisco Call Manager, Video Server, Traffic Server, Camelot Server.
Utilized various traffic generator tools such as Veriwave, Chariot to generate client traffic requirements. Captured and analyzed protocol packets using sniffer tools such as Airopeek, Wireshark.
Worked with cross functional teams in the effort to debug and develop Request for Corrective Actions.
Developed and executed test cases manually and using Spirent iTest automated test tool.
Tested Cisco WiMax Base Stations at Layer 1 and Layer 2 for compatibility with 3rd party Wimax clients.

Confidential

Senior Software Engineer

Responsibilities:

Redesigned Calendar Adapter to improve timezone handling. Modified settings module to handle new common settings in Nokia Email Symbian Client for Nokia E-series and N-series phones (Symbian/C++).
Developed and implemented new features (engine and User Interface), fixed errors, investigated critical email stop flowing problems in GPRS layer, and integrated RIM BlackBerry Connect Email Symbian Client for Nokia S80 and S60 phones (Symbian/C++).
Designed, implemented and integrated Viterbi decoder DSP SW for EDGE (using C/Assembly on TI C55x). Two major requirements were low MIPS (CPU processing power) and RAM.
Tested and integrated RLC/MAC Layer for Nokia 6200 (first EDGE phone). Developed test interface module in C and executed test cases.

Confidential

Senior Research Engineer

Responsibilities:

Performed applied research in the field of channel coding and modulation to develop advanced technologies for digital radio broadcasting.
Prepared detailed reports and contributions to technical standardization committees such as the ITU Radiocommunication Bureau (ITU-R) and the Joint Technical Committee on Advanced Broadcasting (JTCAB). Supervised graduate and undergraduate students to carry out research related to digital radio broadcasting.
Evaluated the proposed RF emission masks and recommended a mask for DAB transmission at L-band. The amplifier nonlinearities and filter characteristics were modeled to examine the trade-offs and feasibility of the emission mask. Simulated different RF filter designs and studied their effect in terms of complexity and their feasibility on the COFDM signal.
Evaluated the COFDM emission scheme of the Eureka 147 DAB (Digital Audio Broadcasting) system, which has been adopted in many countries as the standard for broadcasting of new digital services. Simulated and evaluated the performance of the system over various delivery channels using SPW (Signal Processing Worksystem) and C.