SUMMARY

• Experienced system integration engineer in the wireless broadband industry across multiple generations of technologies (GSM, CDMA, UMTS, LTE). Solid understanding of 3GPP architect, technology migration path and specifications. Currently working on 4G LTE.
• Strong knowledge of R&D engineering disciplines and processes. Extensive experience across multiple R&D functional areas such as system engineering, system integration and test, NPI (new product introduction) and customer support.
• Strong end to end debug/troubleshooting skills on 2G, 3G, and 4G cellular base station software, UE/device software, Call Processing protocol, O&M protocol, RF protocol and Networking protocol. Over 10+ years experience on writing test plans, test customer procedures and debug/troubleshooting protocol/network issues found during test execution.
• Experienced in customer interaction including but not limited to: customer demo and presentation, on site and remote customer support of FOA, ATP, IOT testing and emergency field issue support/investigation.
• Highly motivated and result/quality driven engineer and team player, excellent verbal and writing communication skills.

Confidential , Mobile Broadband Division,

Responsibilities:

• Worked in scrum team/agile environment interfacing with multiple teams and functional areas, doing new feature integration and test for Confidential 4G LTE base station software in end to end 4G LTE system lab which includes: LTE UE/device (IOS/Android), NetAct(OSS), OMS, Flexi - eNodeB, Flexi-NS(MME), Cisco ASR5000(Serving-GW/PDN-GW), HSS and PCRF. Expert in debugging and troubleshooting LTE air interface and E2E LTE call flow. Solid understanding of 3GPP specs and related protocols(RRC, S1AP, NAS, GTP. Diameter) across multiple LTE interfaces (S1/S11/S6/S5/Gx).
• Technical expert in EPC and NSN Network Management solutions (NetAct and iOMS), integrated OSS/O&M features for consecutive 5 releases in the functional areas of: Configuration Management (Provisioning and Commissioning), Software Management (system upgrade/fallback), Performance Management (Monitoring and analyze KPIs and Session Detail Logging) and Fault Management (Events, Exceptions and Alarms).
• Technical support and coordinator of 3rd party vendor hardware, software and licenses. Coordinate external software build deliveries from vendor and manage/resolve vendor software build related issues.
• Create and test MOP/Customer procedures, on-site or remote support of FOA/ATP/IOT and field issues, conduct customer demo and customer presentation of new release/new feature architecture, feature test strategy and test plans.
• Hold customer meeting/visit to understand customer needs and then convert customer requirements to system level use cases, then convert system level use cases into system level requirements. Worked with box product team to ensure system level requirement is further decomposed into sub-system requirements and ICDs (Interface Control Documents).
• Define release level and feature level quality measurement - entry criteria and exit criteria. Ensure and verify system level requirement traceability by creating the linkage between test case and system level requirement in test case base and forward the requirement retirement progress/status to reporting portal.

Confidential , Networks Division,

Responsibilities:

• Technical lead in Operation and Maintenance functional area testing of Confidential 4G LTE device, base station, MME and Serving-Gateway/PDN-Gateway software. Expertise in LTE call flow and IP networking trouble shooting.
• Integrated and tested majority of Confidential 4G LTE Operation and Maintenance features, expertise in System Upgrade, Configuration Management, Session Detail Logging, Fault Management and Performance Management(KPIs).
• Traveled to Japan and China to support FOA and field issue investigation and trouble shooting. Conduct customer demo and presentation of system integration test strategy and test plans.
• Technical support and coordinator of vendor hardware, software and licenses( Qualcomm). Coordinate external software build deliveries from vendor and manage/resolve vendor software build related issues.
• Started LTE SIST team (System Integration and System Test) in 2007 with two others engineers and then gradually built up LTE SIST O&M team to 16 engineers within 2 years in multiple locations (US, India and China.). Drive release by release test planning, test execution, test automation and reporting, successfully delivered multiple LTE releases on-time with high quality to Japan KDDI customer.
• Represented SIST participated new release/feature concept designs and EFS/SFS inspections, established efficient requirement review, test case review and defect/issue investigation process between the two teams.

Senior System Engineer,

Confidential , CDMA System Division,

Responsibilities:

• System engineer of OSSD, developed CDMA EVDO O&M features’ system level requirements (Level-1 and level-2) focused on AEMS FM server (Fault Management) requirements. Delivered multiple FM features to customer trail.
• Coordinator of CDMA CNEOMI Working Group (CWG), drove weekly CNEOMI working group meeting by working with multiple teams’ representatives that across technologies (CDMA, GSM and UMTS) to maintain and enhance CNEOMI artifacts such as CNEOMI MIBs and CNEOMI Use Case models. The CNEMI use case models were implemented by all 3 technologies’ Network Management solutions in over 100 commercial customer sites around the world.
• SR Fault assessor and coordinator in CNEOMI SPCF, reduced CNEOMI SR turnaround time from 1 week to 2 days.
• Support for OSSD Development team and BOX/System team on requirements issues found and reported in lab or customer site.

Senior Engineer /CDMA System Integration and Test,

Confidential , CDMA System Division,

Responsibilities:

• Technical lead of New Feature Test Team doing CDMA RAN system Integration and Test.
• Led feature test team (regular team size is between 5-15 engineers depend on the feature complexity) design and develop new feature integration and test plan.
• Led new feature test team’s test execution, lead and drive major cross sub-system interface technical issues’ trouble shooting and investigations with System Architecture team,
• System Engineering team,
• Development team and Sub-System Test team. Participate and involve all major milestones of each release between M-Gate 11 through M-Gate 3. Lead SIT CNEOMI Working Group and provide CDMA RAN O&M trouble-shooting and support to SIT test teams.

TECHNICAL SKILLS

• Operating Systems: Linux, Unix, Android, Windows
• Protocols: 3GPP, 3GPP2, LTE/UMTS/CDMA/GSM/WIMAX, SNMP, TCP/IP, DHCP, LDAP, HTTP, SIP, VoLTE, IMS
• SCM Tools: DOORS, Jenkins, PRONTO, Quality Center, Clear Case/Clear Quest
• Script Language/Test Tools: Python, Unix-shell