SUMMARY:

• Lead and executes end to end system integration, performance and validation testing.
• Demonstrated analytic, influential and communication skills with ability to work with system architects, product management, and engineering across internal and external organizations around the globe.
• Demonstrated ability to multi - task on a variety of projects under time pressure. Active participant in engineering project definition, work estimates and scheduling as well as execution.
• Excellent problem solving skills to identify issues in complex systems and provide best in class solutions.
• System engineering experience in several 3G and 4G telecommunications system including UMTS, GPRS, CDMA EVDO, WiMax, 802.11n and LTE.
• Three patent applications filed to the US patent office, more than six defensive publications to date.
• Direct experience with commercial field deployments, troubleshooting live deployed systems.
• Hands-on experience with test equipments such as spectrum analyzers, fader and test tools such as, iPerf, Ixia, IxLoad, IxAutomate. Direct experience in configuring complementary networking equipment such as switches, routers, AAA servers.

WORK EXPERIENCE:

• Technical lead for the wireless broadband access group. Represents product with proprietary OFDM, 802.16e, LTE and 802.11n technologies serving commercial service providers as well as government/federal agencies.
• Lead the system integration engineering team. Create and manage the test strategy, test plan, distribution of test responsibilities and oversee the test progress for deferent product releases.
• Execute test for the end to end system involving waterfall, QoS, application and throughput performance including RFC2544. Review results with tester from different test setups to evaluate the performance and any potential issue. Different level of test automation implemented using Perl and Python scripting for test execution as well as post processing test results.
• LTE end-to-end system validation, performance and integration tests with different UEs(MSs). Also responsible for maintaining SGW (C, Linux), eNB (Linux, VxWorks) software releases and supporting SGW product and network issues across Motorola LTE trial implementation across labs and field. Use Spirent RF fader to emulate different RF conditions and validate product features.
• Familiar with several issue tracking tools including bugzilla, ClearQuest and Mantis.
• Debug different problems using system level utilities and Ethereal/Wireshark. Also addressed the RF, networking and routing problems using CLI and engineering tools.
• Provide technical guidance within team for the issues encountered. Engage with development teams for the timely resolution of any issues as well as provide guidance for new feature developments. Serve as the engineering interface to the T3 support team.
• Leading contributor to provide customer training and customer facing technical documents/white papers. Participate in several customer trials and work with customers directly to help with system deployments as well as any system issue resolution. Covert the voice of customer into feature request.
• Instrumental in system architecture design and requirement developments for several features. Work with product management to provide RFI and RFP response.
• Designed system software algorithms involving MAC layer for system using GPRS, UMTS, 802.16e and LTE standards. Analyzed several design problems and their solution in timely manner. Improved design that increased system capacity by 30% and reduced the call setup delay up to 50%. Proposed and analyzed different scheduler designs for diverse QoS needs and traffic models.
• Led several performance/simulation tool development and enhancement efforts.
• Modeled Motorola proprietary design/code for 802.16e and LTE technology solutions on OPNET simulation software, also use MATLAB and perl for post processing.
• Developed “SetupSim” using C code for critical path analysis, which helped to quantify the benefits of several innovative ideas. Executable created for both WINDOWS and UNIX operating environment.
• Enhanced the in-house GPRS model on Linux using C, C++ in addition to different scripting languages including shell scripts and PERL for simulation setup and post processing.
• Provided solutions to eliminate risk factors in the product, and identified differentiating features and algorithm for the products. Demonstrated improvements to Motorola senior leadership team via presentations and actual end user experience with lab setup.
• Contributed and participated towards industry standards involving IEEE 802.16e and WiMax NWG for paging procedure improvements, gaming model definition and IPR claim maps.
• Introduced several product features for system enhancement and new product releases for several Motorola network products.
• Defined and validated system requirements and call setup requirements. Researched and created control call flows for 802.16e, UMTS, GPRS and LTE.
• Contributed toward system architecture design (SAD) and requirements (SRD) documentation. Also, created interface control definition (ICD) document to facilitate system interface design.
• Analyzed different application performance over wireless networks including VoIP (AMR, G.711), interactive gaming (FPS, MMORPG), push-to-talk, YouTube (HTTP/flash player). Also executed the end user experience and expectation studies.
• Worked with senior engineering staff to develop capacity models for the Motorola UMTS RNC and GPRS PCU.Developed the signaling delay simulation and capacity model using CSIM and C code.
• Performed capacity analysis of the GSN3 Charging Gateway/ISS solutionas well as signaling delay simulation of the GSN3 SGSN and USR1 RNC.
• Provided automation to the real-time database capacity analysis tool using visual basic for UMTS RNC. Used for the early product analysis, resulted in capacity improvement and capacity planning.

Confidential,Schaumburg, IL

Principle Staff System Engineer

Confidential, Arlington Heights, IL -- Sr. Staff System Engineer

Confidential, Arlington Heights, IL -- Software/System Engineer

Confidential, Chicago, IL -- Lead Application/Database Developer

Technical Expertise:

Wireless Technologies: 3GPP-LTE/UMTS/GPRS, WIMAX, PMP OFDM

Applications: VoIP, PTT, Interactive gaming, HTTP/flash player, FTP

Protocol familiarity: PHY, MAC, RLC, RRC, TCP/UDP/IP

Development/Testing Tools: OPNET, Excel, Access, PowerPoint, IXIA, IxAutomate, IxLoad, Mantis, ClearQuest, Bugzilla programming languages/applications: C, C++, Visual Basic, ASP, Perl

Standards involvements: 3GPP, 3GPP2, IEEE 802.16e, WiMax NWG