SUMMARY:

• Sr. Engineer with diverse experience in Solution, Testing, WiFi, Unix System Admin, RF Planning, KPI data analyzing and AAA engineering. Strong track record of resolving customers’ requirement and network issues, recovering outages, analyzing root causes, developing and implementing test cases, and providing results to internal and external customers.
• SQL Scripting, UNIX shell scripting and Python scripting.
• Knowledge in a diverse range of hardware and software, including Unix/Linux, client/server, WiFi, VMs, Citrix, TCP/IP, DNS, DHCP, Wireshark PCAP, databases, SQL, MongoDB, Java, HP OpenView, SNMP, LDAP, RBAC, Microsoft windows and applications etc.

TECHNICAL SKILLS:

Operating System: MS - DOS, MS-Windows, NetWare, UNIX, Linux

Languages: C, SQL, UNIX Shell, Python

Databases: Oracle, Informix, MySQL, MongoDB

Applications: Relational Database Applications - Access, MS Office Suite Applications, SoapUI, Amdocs Clarify, BMC Remedy, and IBM ClearQuest

Systems: PC, VMs, Cable Modem, Cable Router, IP Gateway, Switching, AMPS, CDMA, iDEN, WiMax, LTE, Cisco router and switch,WiFi

PROFESSIONAL EXPERIENCE:

Engineer

Confidential

Responsibilities:

• Managed, supported and maintained high WiFi and entertainment service availability for major airlines, root caused and fixed field issues by reviewing logs, creating SQL and Unix scripts, using sumo logic tool, KPI reports and etc. Achieved operational performance goal by increasing availability by 5%
• Developed and implemented in-flight WiFi testing and lab testing for airborne WiFi system

AAA Engineer

Confidential

Responsibilities:

• Deployed AAA system into production, and designed, developed and implemented acceptance test procedures
• Performed configuration and policy changes on the AAA server to meet company/airline/telecommunication industries’ requirements
• Provided operational support outage recovery for the AAA server, evaluated and enhanced the AAA system
• Created Python scripts to monitor the system performance, auto backup and testing by using NTRad, SoapUI etc.

RF Performance Engineer

Confidential

Responsibilities:

• Identified and resolved performance issues for Sprint LTE network
• Resolved configuration, backhaul, hardware, RF performance issues to achieve customer’s target KPI goal
• Queried KPI data from PM database. Analyzed, troubleshot and monitored KPI for bad performance cells and made changes to enhance the performance

Sr. Solution Engineer

Confidential

Responsibilities:

• Utilized Unix, SQL and network knowledge/commands with reviewing logs to identify and analyze customer network/server issues related to design, maintenance, operation and performance for AEMS (Solaris platform, IBM x3650T server and PC clients with Microsoft windows and applications), OMCR (Solaris system) and Cisco switch of CDMA system. Provided 24/7 on-call problem solving and outage recovery

Sr. WiMax System Engineer

Confidential

Responsibilities:

• Developed test cases based on customers’ requirement, implemented testing, which included simple IP, mobile IP, basic VOIP, service flow, ARQ, HARQ, throughput, scheduling, power control, Antenna diversity, MIMO, end to end QoS, network entry etc. Troubleshot and resolved customer network issues.
• Integrated and configured WiMax network for testing and debugging improving performance
• Managed testing projects facilitating design changes.
• Configuration/Operation & Performance/Maintenance/Upgrade support of WiMax system
• Root caused issues and collaborated with the development and third-party vendors to resolve software and hardware defects.

Palatine, IL

Sr. iDEN System Technical Support Engineer

Confidential

Responsibilities:

• Developed management tools tracking and summarizing top issues and presented them to the management and customers for review on weekly basis
• Identified and troubleshot OMC system issues for domestic and international customers.
• Acted as Subject Matter Expert with lead training role for the team members

Sr. System Test Engineer

Confidential

Responsibilities:

• Integrated and configured Cable Telephony System and Broadband Voice over IP network. Used various test equipments such as spectrum analyzers, call generators, and software tools for system testing. Collaborated with the development team to resolve product issues. Used IBM ClearQuest tool for real time reporting problems and status.
• Reduced Cycle time 25%-33% across three different test projects by developing a quality test matrix, test plans and test reports. Received Bravo rewards from management for outstanding completion of leading projects

RF Engineer

Confidential

Responsibilities:

• Planed, designed and implemented 2G and 3G network for Midwest market.
• Designed and implemented CDMA cellular network by conducting spectrum clearing, testing single cell function, configuring antenna, planning PN offset and planning pilot power, site selection, frequency planning, link budget calculation and transmitter testing.
• Frequency coordination and extension agreements for neighboring carriers, and frequency retuning
• Provided a yearly network growth plan for use by project engineering and field personnel
• Enhanced the network quality by using RF planning tools, studying drive test and traffic data report

Sr. Traffic Data Engineer

Confidential

Responsibilities:

• Administrated FoxPro Database and maintained Unix server for statistic data. Developed cell site statistic reports using UNIX shell script, SQL and programming language. Designed and developed a CDMA cell traffic database for engineering using C, SQL and FoxPro.
• Closely monitored and analyzed cell site traffic statistics to maintain a two percent grade of service standard. Supported and provided traffic reports for all engineering department.