Test Engineer, Linux, Unix, SS7, Sigtran, Daimeter, GSM, SIP, H323

*** ******** **** *****: 856-***-****

Runnemede NJ, 08078 ******@*******.***

William A. Gray

PROFESSIONAL

EXPERIENCE:

MAVENIR SYSTEMS / ULTICOM INC. (05/15/06 - Present)

Senior Test Engineer

System test for the Ulticom Diameter Signaling Controller, Diameter SS7 Gateway, Ulticom SS7 STP and IP Gateway.Protocol testing for Diameter Signaling Controller and Diameter / GSM Gateway.

Using My SQl, Mongo DB,

Prototype test on Ulticom SIP / h.323 stack.

Monitor and follow the progression of all requirements

through the development life cycle using Agile methodology until release.

Develop Test Plans and Test Descriptions for all aspects of the Diameter Products and the nSignia STP

including all SS7 and IP protocols. This is based on the specific industry standard RFC

specification for each specific protocol version. Develop and maintain automated test scripts using an

Ulticom propriatry scripting language and methodology. Develop and maintain test scripts using ksh, bash and perl. Modification of test application in C language.

Installation and configuration of various Hardware associated and SS7 cards for TDM, HSL and ATM networks. Provisioning of various SS7 and IP networks. Set up and maintenance of lab equipment.

Knowledge resource for junior and senior test engineers.

Troubleshooting and debugging of Clustered STP systems.

Troubleshooting and debugging of LTE Clustered Diameter networks, SS7 STP and SS7 to IP clustered systems and networks, as well as the Gateway systems that connect the two above

Maintenance and trouble shooting of SS7 /IP networks ( SOLARIS and LINUX)

ADAX INC. (07/25/05 – 5/12/06)

Test Engineer

System test for an SS7/IP gateway/STP/SEP using a7, c7, ch7 and j7 protocols caring SCCP and ISUP traffic. Set up and maintenance of the SS7 / IP development lab equipment.

SS7 /IP networking, SS7/SIGTRAN cluster, system configuration.

Troubleshooting and re-producing specific high priority customer issues.

Quick unit testing of bug fixes. Shell scripting, (ksh and bash).

Development of Test Plans and Test Descriptions

COMVERSE TECHNOLOGIES (12/11/2000 – 07/15/05).

Test Engineer

Development of test plans and descriptions based on System requirements documentation and reference to specific network specifications.

Develop and modify test applications in C.

Develop test scripts using Korn Shell, Perl and proprietary language used for SS7 testing.

Analyze test data including hex dumps.

Creation of HEX scripts in BER data for test applications.

Installation, configuration and cabling of various serial and TDM boards for SS7 networking.

Provisioning of SS7 links using MML in test network environment.

Provisioning of associations over sigtran (client and server).

Trouble shooting and debugging of new apps as well as customer issues at the UNIX application level through network API’s into

The various levels of the SS7 and Sigtran stacks, down to the board out and back.

Installation and maintenance of a number of dual to quad redundant telecom endpoint systems, for user services (voice mail, pre-paid etc…), who’s elements are separated into module managers and respective streams elements that are integrated into the UNIX kernel in the test environment.

LINUX, UNIX IP networking.

Installation and preliminary testing of an IP to SS7 Gateway.

It services for the test network.

NETTECH SYSTEMS (8/2/99 – 12/08/2000).

Senior Support Consultant level 3

Configuration and troubleshooting of RF and satellite network client applications.

Debug customer issues in source code using Visual Studio 6.

Responsible for supporting all levels of the application stack and API calls within a runtime environment.

Installation and configuration of various pieces of RF server connections on any 386 platform under Win NT 4.0 or Win 2000. Server connections are established to the RF provider with either a Frame Relay or X.25 leased connection to the RF vendor cloud.

Responsible for the debugging of X.25 and Winsock errors returned from the RF Network Gateway.

Utilization of MS Visual Studio 6 and an array of Visual SDK for the analysis of various log files obtained from the RF Network Gateway.

Analysis of customer application code for obvious errors in the use of the Nettech API’s.

Installation and maintenance of the technical support database with Connect Care front end over an SQL 6 database.

Trained and supervised tech 2 and tech 1 personnel.

Technical Advisor for reviewing all support cases before they are escalated to the development team.

Provide feedback to the documentation dept. in respect to any additional information or the clarity of the existing information provided as Installation instructions and Developers guides.

ASTEA INTERNATIONAL (5/18/98 – 6/18/99)

Programmer / Analyst.

Debug, analyze and fix reported issues for custom applications written in C and Progress pertaining to the GUI Client side applications for Win 95/98. Accomplished through using Vi, Unix compliers and MS Visual Studio 5 Application support for RF communications software client and server issues.

Created the documentation for the installation of the Astea Front End Processor, which is an RF gateway, that allows mobile clients nationwide access to their companies data base information over non–IP, RF networks. Maintain 4 test FEP’s, (Rf gateway servers), for Asteas internal Development, QA and Support depts. The servers were stand-alone NT servers with leased line x.25 connections to the RF vendors cloud.

On site installation and configuration of the Astea Rf client and server

applications during pilot, upgrade and for troubleshooting local network issues.

GENERAL CONTRACTOR (1982– 1998)

Owner/Operator of small contracting business.

Responsible for all day to day business operations.

Customer Service, client contacts, scheduling, hiring personal, supervision of employees, ordering materials, delivery schedules, implementation of jobs, budgets, accounts payable and receivable, marketing, sales.

EDUCATION Pennsylvania State University/Great Valley, Pa

March 1998 – May 1998

Accelerated UNIX System, C, C++, OOP certification program

Temple University – Phila., Pa

September 1984 – January 1985

September 1994 – December 1997

Major – Civil Engineering

Community College Of Philadelphia – Phila., PA

September 1982 – June 1984

TECHNICAL

SKILLS:

Programming Languages - C, Progress, Korn Shell, Bash, Perl, SQL, MongoDb

Applications - MS Office Products, Visual Studio, VI, NettechRf,

TNVT, Connect Care 6 db, SCCS, Clear Case, OpenView, Doors

Operating Systems - UNIX, LINUX, Windows

Networks - Telecom, IP, SS7 (A7, C7, CH7, J7), X.25, Datatac4000-6000,

CDPD, Radio LAN, Norcom, RNC6000, Wireline, LAN, Ardis/Norcom, Ardis/IP, Ardis/X.25, Mobitex/X.25, Mobitex/IP, Mobitex/Norcom.

Protocols - SIP, H323, Diameter, M2PA, M2UA, ATM, HSL, M3UA, SCTP,GSM, IS41, INAP, TCAP, SCCP,Mtp3, MWI, ATM, Native Ardis, Native Mpak, RNC6K, CDPD, Norcom, Norcom/Ardis, Norcom/Mobitex, Tcp/Ip, Udp/Ip, HDLC, Qualcom.

Hardware – Cisco ITP, Cajun, APLUS, UPU, MVM, various Trilog chassis,

Palm 3, Palm 5, Palm 7, Itronics XZ6250, Itronics T5200,

Telxon R810, Compaq Ipac, Symbol 2700, Symbol MG +, Phenom,

Millard, Panasonic CF27, Rim 950, Rim 957, Rim 850, Langley.

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