Contractor Resume
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Birmingham, AL
OBJECTIVE:
- Seeking a new opportunity to grow and advance in the telecommunications field; utilizing my wide breadth of device certification knowledge, my ever growing L2/L3 Protocol knowledge, and my willingness to travel/relocate, to provide the highest level of service and flexibility to a new employment opportunity.
PROFESSIONAL EXPERIENCE
Confidential — Birmingham, AL
Contractor
Responsibilities:
- Oversaw the development of SouthernLinc's Carrier Product Requirements Document and supplemental certification process for newly launched device on greenfield LTE network. (VoWIFI/VoLTE),
- Coordination with various internal departments and SME's.
- Developed test cases to complement PRD finalized requirements (ex OMADM, OMAPOC, WIFI Alliance, 3GPP, Bluetooth Special Interests Group, including Commercial Push to Talk via Wave7000) for Carrier Certification Program both lab and functional cases.
- Direct training from MSI on Wave7000 platform, including provisioning.
- Developed SouthernLinc's Product Requirements Document complete section for Commercial Wave7000, cross - referencing 3GPP TS 23.179, Motorola Solutions's ODDS for PTT, internal SouthernLinc custom requirements, and internal decision-makers and SME's to meet a deliverable deadline.
- Familiar with lab testing using a toy-cell, isolation chamber, and spectrum analyzer to validate the signal strength within the chamber.
- Strong understanding of SIP protocol to validate issues with VoLTE, VoWifi.
- Understanding of a connection manager for Rove IN and Rove Out requirements for VoWifi.
- Involved in initial set up, calibrating, and functionally testing of the lab environment.
- Used wireless network testing experience to collaborate with the RAN Department in their efforts to validate the network with Ericsson.
- Created a User Acceptance Test Plan from scratch for certifying an AVL module and the accompanying fleet tracking software and took lead in the Carrier Certification Testing of the device.
- Extensive use of Putty for Confidential Commands, QXDM, QPST, QCAT, Wireshark, ADB Commands for Android Logs and pushing pre-release APK files.
- Familiar with creating automated scripts using AutoIT and Vysor to automate both functional test cases and the logging process for defect investigation and validation of bug fixes.
- Familiar with editing SIM files (IST, UST, etc) for both IMS registration and editing PLMN fields for roaming scenarios for device testing.
- Extensive collaboration with OEM Field Engineers for functional testing of the pre-launch device. (Loading SW, troubleshooting issues by pulling both device and network logs, feeding these findings back into a PRD requirements and ultimately forming test cases to validate the SW upon carrier acceptance).
- Consulted on tools necessary to efficiently certify a device on a carrier network if the testing is being done internally or through a third party service provider
- Team player and adaptable
Confidential — Jacksonville, FL
Owner/Principal Engineer
Responsibilities:
- Performing site integration and optimization for client modernization project.
- Includes performing network performance test cases.
- Validation of VoLTE call performance via ANOVA cluster drives.
- Validation of IMS registration.
- Data Performance validation via Iperf.
- Extensive use of TEMs Investigation with PCTEL MX Scanner.
- Using OpenSSH, PSCP and TCPDUMP to grab PCAP logs for Wireshark Log analysis from handset.
- Analyzing PCAP traces for SIP call flow/ Grabbing RTP streams of audio files
- Familiar with Audio and Video Codecs G.711 (a/u law) G.722 etc, VP8 and H.264 etc
- Working on SIP certification through SSCA.
Confidential — Miami, FL
Sr. Specialist: Product Development Engineer.
Responsibilities:
- Management: Coordinating with contractors, both internal contractors and third party contractors from vendors such as Tech Confidential . Responsible for monitoring progress, setting deliverables, and validating results in the case of defect reporting. Coordinating with volunteer testers - validating bug reports and troubleshooting SW flashing issues from FE through IFWand FFW, for Initial SW, MR’s and EMRs. Collection and reporting of volunteer metrics for each trial.
- Device Certification: Use of Confidential &T Device Certification Guidelines 16411 to perform both stationary and mobility test cases, covering both UMTS and LTE infrastructure. Development of functional use cases to supplement stated guide. Familiar with 10776 and 13340 cases as well. Required to consistently meet deliverables in a dynamic environment. Also familiar with DG-11 and TS-11 3GPP test specs.
- Vendor Coordination: Use of HP Quality Center to log and track defect resolution. Constant contact with vendor representatives and vendor testers in cases where more extensive defect investigation is necessary for vendor resolution.
- Trace Collection: . Extensive experience with IMS/VoLTE/SRVCC and Carrier Aggregation/LTE-Advanced testing and validation. Extensive experience with TEMs, QXDM/QPST/QCAT, Wireshark, Spirent/Metrico Wireless Nomad and Datum, ADB logging for Android OS, Irisview for network traces, Confidential commands, and FTP clients. Extensive experience flashing and loading software including engineering builds for logging with vendor specific proprietary logging methods.
- Device OS Tested: A ndroid: All, iOS: All, Windows 8/10, Windows Phone OS, Windows RT: All (familiar with FOTA testing via Windows devices), Legacy Symbian OS, RIM Blackberry OS: All
- LTE Architecture: Working experience with LTE/UMTS protocol stack layer 3 (RRC, NAS) and Layer 2 (PDCP/RLC/MAC). Working experience in identifying functional and performance issues by analyzing failure logs. Working knowledge of EPC Architecture S1AP, S11, S3/S4, S1-MME, S1-U, S11, S6a, S5/8, etc. Working knowledge of IP-related protocols including Diameter, SIP, RTP, TCP/IP, UDP, IPSEC, SCTP, etc. Regular Awards solutions quarterly training on UMTS/LTE/VoLTE/IMS.
Confidential — Lake Mary, FL
Contractor-Sr. Specialist: Product Development Engineer.
Responsibilities:
- Manual and automated handset feature testing on GSM/UMTS.
- Multi-vendor device certification using various vendor specific software packages for device upgrades and logging.
- Using of log capturing as needed to support both regression testing and defect submission during validation testing. (Wireshark, QXDM, TEMS, Vendor tools).
- Performance Benchmark drives using Metrico Wireless Nomad (now Spirent).
- Offered full-time position well before 3 year contract expiration due to outstanding metrics and device testing knowledge.
Confidential — Munich, Germany
UMTS Protocol Stack Engineer
Responsibilities:
- 1.5 Months of coordinated training from a joint Infineon and Sasken team Confidential Infineon Headquarters in Munich, Germany.
- UMTS/GSM protocol testing on Layers 1,2, and 3 with emphasis placed on MAC, RLC and RRC.
- Extensive feature testing on pre-launch Confidential 4.
- Experience with Mobile Analyzer for Layer 3 trace collection and Artemis for firmware trace logs.
- Extensive use of Confidential commands during testing.
- Use of Wireshark for IP packet sniffing logs.
- Use of UTP/Clearcase for raising CR reports.
- U information such as IMEI and SIM assist back office second level se of flash tools for flashing both chip software and editing phone card information.
- Familiar with preparing detailed statistical and qualitative reports to analysis.
Confidential — Lynchburg, VA
Mobile Test Technician-Associate RF Engineer
Responsibilities:
- Multi-Carrier competitive Benchmarking on GSM/UMTS/CDMA-2000 networks for both CS/PS/MRAB performance.
- Automated testing environment with a strong emphasis on accurate data collection.
- Data collection using Andrews Invex 3G equipment.
- Drive Route based driving with 250 miles per day requirement.
- Quick Learner-Completed scheduled 4 week training in 7 days; in market testing on day 5 after initial hire.
Confidential — FORT LAUDERDALE, FL
Associate RF Engineer
Responsibilities:
- RNC Rehome testing on a UMTS/GSM network.
- E911 Call testing, validating correct call phase, MSISDN, and site address are being relayed.
- CS MO and MT calling (M2M, M2PSTN, PSTN2M, and VM)
- Stationary testing using device Engineering Mode to run cases on all 3 sectors of the BTS/Node-B.
- PS and MRAB validation after rehoming.
- Detailed manual error report generation for failed cases using excel.
- Testing performed during maintenance window, regular staff calls before testing
- Navigation using Microsoft Streets and Trips.
Confidential — CHANTILLY, VA
Associate RF Engineer
Responsibilities:
- Multi-Carrier competitive benchmarking for both CS/PS/MRAB performance.
- Automated testing environment with a strong emphasis on accurate data collection.
- Setup/Operation/Maintenance/Troubleshooting of Comarco Symphony 7.5 and 9.
- Drive Route based driving with 250 miles per day requirement.
- Navigation using DeLorme.