SUMMARY:

Over 25 years hands - on full-time Employee/Consultant on Android, UNIX-Linux, Windows, Windows-Mobile, Symbian doing: software quality assurance, automation, application development, database administration, porting, diagnostics software, embedded software, systems software, performance engineering, release engineering, system administration, technical support, project management.

TECHNICAL SKILLS:

LANGUAGES: Java, C++, C, SQL, XML, Objective-C, Perl, Shell, Python, PHP, Ruby, TCL/Expect, Tk, lex, yacc, Confidential, JAVA packages, JavaScript, JSP, ASP, ASP.Net, Visual Basic, VBScript, VB.Net, C-Sharp.Net, UNIX debugger, LISP, Awk, Sed, D-HTML, Postscript, assembly language (Intel x86, SPARC, Motorola 68k, Z80), Fortran, Basic.

SOFTWARE Web Server/Client Design: J2SE, J2EE, J2ME, ASP, IIS, Confidential /Swing, JSP, JSON, JSF, JavaScript, UML, Confidential, WebNFS, HTTP, XML, Xquery, XPath, XSLT, CSS, UTF8 Encoding, Ruby on Rails, Web2.0 AJAXToolkits, Eclipse RCP, Wicket, Velocity, Hibernate, Spring, Web Browsers, Netscape Enterprise Server, Apache, Curl, SyncML, Tomcat, WebSphere MQSeries, Tibco Rendezvous/EMS, WebLogic, Confidential Dynamo, SOA/Web Services, SOAP, WSDL, REST API, UDDI, JMX/MBeans, ColdFusion, Flash/ActionScript, DreamWeaver, PhotoShop, Illustrator, JTest, JProbe, JDBC/ODBC, CORBA, RMI, SSL, EJB, JavaBeans, Servlets, MVC-2 Struts, JMS, DOM, SAX, Servlet Engine, SSH, Rational Rose/Robot/Purify, TeamSite Content Mgmt

Automation Frameworks: WinRunner, QuickTestPro, Selenium, LoadRunner, QualityCenter, SilkTest, SilkPerformer, JUnit, NUnit, HTTPUnit, PHPUnit, DBUnit, CPPUnit, TestNG, Cargo, Cactus, IBM STAF, Watir

Tools: Qualcomm (QPST, QXDM, QRCT), adb logcat, Lauterbach Trace32, Ethereal, Wireshark, Omnipeek, Tcpdump, Agilent MobileIP Simulator, Monsoon Power Monitor, Ixia Qcheck, UDP Flood, NetworkAssociates SnifferPro, Wildpackets EtherPeek/AiroPeek, NetIQ Chariot, ping, Microsoft Network Monitor, NetPerSec, Apache JMeter, SiteScope, snort, nmap, nesus

OTA Device Mgmt: First Setup, Configuration, Software Update, Fault Mgmt

VOIP: IP Multicast, Asterisk, Cisco CME/CCM, IP PBX, Avaya TDM PBX, Virtual Call Routing, Media Servers, SS7, SONET, ATM, MPLS, Frame Relay, ISDN-T1-E1, QSIG/Q.931, SIP<->T1/PRI, SIP, SCCP, RTP, SRTP, ACD, IVR (In-Band DTMF, Out-Of-Band RFC2833 DTMF) H.323, H.225 & H.245 signal, NetHawk East, MGCP, SIPP Load, PSTN Call Generators

BSD, UNIX, Embedded/Linux, WinCE, VxWorks, VrTx: system calls, character & block device drivers, Realtime/Timeshare kernel, multiprocessor diagnostics, POSIX.2/ XCU4 Spec 1170, system libraries, multithread apps

Relational databases: HP's ISAM, Sybase-SQL, MySQL, IBM DB2, Microsoft Access, Oracle Parallel Database, Oracle 7i/8i/9i, Oracle App. Server 10g/11i, SQL, ODBC, Oracle RFID SensorEdge Server, Microsoft SQL Server 7.0/2000.

Microsoft Windows: Visual Studio, Win-32 API, MFC, Visual C++, DCOM, ASP, Exchange Server, IIS, ASP.Net, Visual Basic, VB.Net, C-Sharp.Net, ADO.Net.

Windows Mobile 2006: Platform Builder, WinCE CAB Manager, VOIP SDK, WiFi & CellularData API, CERegEditor

Android w/ Ubuntu: SDK, Frameworks, Apps, VOIP, API w/ WiFi & CellData

Symbian S60 30/FP1: VOIP SDK, API w/ WiFi, Cellular Data, Cellular interface.

Microsoft Server OS’s: NT 4.0, 2000/XP, configuration scripts, internals.

Volume Management: HA, Disaster Recovery, Failover, Sun/Veritas Cluster; RAID Veritas Volume Manager, HP’s LVM; RAID Storage Mgmt.; Veritas NetBackup; Legato NetWorker; VmWare Software Virtualization; ZFS filesystem.

Multimedia: audio, video, fax, IPTV, IGMP, H.264, RTSP, MIME, sendmail, POP3, IMAP4, PCX, JPG, TIFF, TARGA, GIF, YUV, JPEG, MPEG, DLNA Media

Networking: TCP/IP, UDP/IP, DNS, DHCP, LDAP, Active Directory, firewalls, NAT, VRRP, OSPF, BGP, RIP, socket, NFS, PPP, DCE, LAN, SNMP, FTP, TFTP, SMTP, POP3, IMAP4, 7 Layer OSI, X.25, RPC, FDDI, ATM, Token Ring, VPN, routers, switches, load balancer, clusters, HA NIC Teaming, HP OpenView

Network Security: RSA, MD5, Digital Certificates, SSL, VPN, L2TP, PPTP, IPSec, TLS, Intrusion Detection, Encrypt/Decrypt; Authentication PKI, Kerberos (KDC service w/ Active Directory), Radius Server (PEAP, EAP/TLS), LDAP Sign-In; Encryption methods WEP, WPA-PSK(TKIP)

Diagnostics: multiprocessor diagnostics, Qualcomm (MSM7x30/8x55/8960, MDM9200), ARM, HP PA-RISC, Motorola 68K, Intel x86.

Wireless: LTE, HSPA+, HSPA, UMTS/WCDMA, EVDO, EDGE, GSM, CDMA,802.11.X, Wi-Fi, J2ME, WAP, GPS, SMS, MMS, HDML, WML, WAP browser, RFID, VOIP

Ecommerce: BroadVision/Javascript components, TaxWare, ClearCommerce

X-Window: Application software using Xlibrary, Xview, Motif/Xt/CDE widgets, X- Runner, Window Manager porting, X-Graphics library, XServer design.

DOS: system call applications, batch files, TSR applications.

Defect Tracking: TestDirector, ClearQuest, Vantive, BugTraq, BugZilla.

Build Tools: make, Apache Ant/Maven, hudson/jenkins

SCM: ClearCase, PerForce, CVS, SVN, PVCS, RCS, SCCS, VSS, Git.

HARDWARE: Fibre Channel, SAN/NAS storage backend, RS 232-C, CCITT T.30, X.25, Ethernet, IBM's AT-Bus, VME bus, S-bus, PCI bus, SCSI, iSCSI, Network Interface Cards, USB 2.0, Wireless Switches, Wireless AP

PROFESSIONAL EXPERIENCE:

Sr QA, Automate, Debug, Appl Dev

Confidential, Redwood City

Responsibilities:

• For Windows Mobile 6.5 & Android 2.x thru 4.x did: Windows-XP/7 Product Support Tools, QA, Automation, Appl. Devp, Customize, Content Backup & Restore using Android/Windows Service, Debugging/BugFix (Windows Mobile 6.5: Registry, Configuration Service Provider, KITL USB Debug; Android: User-Space & Kernel-Space Memory, Crash, Application Not Responding, Watchdog Reset Analysis, QCT UMTS/CDMA Tools (QPST Service Programming, QXDM NV Browser & Data Protocol Logging, Qualcomm API (PRL/ERI-Update, NV-Items Read/Write), QRCT, PPP & PCAP Analysis), Power Save Analysis, Performance Tuning at Kernel & App layers, Mean Time To Failure.

Environment: C, C++, Java, Shell Scripts, Perl, Python, MySQL, Apache2, Curl, Android SDK, HTTP, XML, XSLT, Xquery, JSON, JUnit, TestNG, SMS, MMS, RTSP C/Java Android Native/Apps Debugging on Ubuntu 10.04 using Eclipse IDE: readelf of vmlinux, tl2elf of tlcore, kdump of vmcore, gdb, tcpdump, ethereal, adb logcat, Agilent MobileIP Simulate Data Call using Cell/Channel from PRL, hudson/jenkins build tool, git repository & tools (repo, gitk, gerrit); C-Sharp, Visual Studio 2008: customaction.vb Install/UnInstall override MSI, Platform Builder 6, Windows Mobile 6.5: UTF8 Translations w/ SetupDLL Install/UnInstall Init/Exit functions, Configuration Service Provider Tasks using Windows Mobile 6.5 API; DLL, Drivers & Resource files, COM objects, Monsoon Power Monitor on WindowsMobile & Android devices, OTA Device Mgmt (Configuration, FOTA Software Update, Fault Mgmt), DRM Encoded Content, DLNA Media Server, Exchange Direct Push, PHP/Javascript Browser Plugins, ActiveX, CSS.

Sr. Python/Java QA Automation

Confidential, Cupertino

Responsibilities:

• Development, QA, Automation for Enterprise DataCenter Server Automation product

Environment: Python/Java Appl. Devp. incl. calling Python-STAF libraries for local/remote automation & SilkTest Appl. Devp. in 4-Test language for GUI Automation on VMWare ESX Virtual Windows/Linux Servers. Shell Scripts, Perl, C, C++, Java, Python, WebPy for Front-End, XML parsing/reading/writing in Python, PyUnit, STAF, Oracle backend using Eclipse PyDev IDE with Agile Development Methodology.

Sr. Appl. Devp, QA/Automation

Confidential, Mtn. View, CA

Responsibilities:

• Single Master, Multi Slave Replicated Active Directory Domain Controller interacted with Confidential for Single-Sign-On for User/Group (with Attributes) Authentication on Mobile Devices across Domains with TLS/SSL using PHP w/ MySQL backend.
• Ran valgrind against C/C++ server/client to resolve runtime performance & memory leaks.
• Analyse data & voice protocol via tcpdump, Ethereal, GLComm AFT capture. Measure End-to-End Delay via GLComm AFT, PESQ via GLComm VQT, performance via Ixia Chariot, impairments via Confidential impairment simulator (ported to Fedora Core 8). Did Automation: WinRunner & QuickTest Pro Wireless module from Mobile Device, SIPP (SIP load/stress), Selenium IDE/Remote Control for Confidential /IE Enterprise web interface, LoadRunner 8.x: Wireless VUser script (Scenario involving Steps, Transactions, Rendezvous Points, Correlation).

Environment: Product converges Fixed Wired (Line-Side and Trunk-Side interfacing to Asterisk, Cisco CCM, Cisco CME, Avaya TDM-PBX & S8700 Media Servers, FXS to Intuity Audix, IVR, ACD, Virtual Call Routing) solutions to Mobile Unified Communication to provide seamless mobility (handoffs utilizing WiFi, Cellular Voice, Cellular Data) with Voice and Instant Messaging. Media Gateway convert SIP to T1/E1-PRI into Avaya Media Server/TDM-PBX for Voice/Video Streams. VOIP/PBX functionality supported via IVR, Messaging, Virtual Call Routing, Location Aware using GPS API, Audio/Video Conferencing. Product built on open source (SIP, Asterisk, Apache, Ant, XML, Jabber, MySQL, Perl, Python, Shell, C, Objective-C, Windows Mobile 2005 API, HTC VOIP SDK, Symbian S60.30 & FP1, Nokia VOIP SDK, SMS, C++, Fedora Core-8, Flash/ActionScript, PHP, Ruby On Rails, Java, CVS).

Sr. Appl. Devp, QA, Automation

Confidential, San Jose

Responsibilities:

• Single Master, Multi Slave Replicated Active Directory Domain Controller interacted with Confidential for Single-Sign-On for User/Group (with Attributes) Authentication on Mobile Devices and Desktop Client across Domains with TLS/SSL using PHP w/ MySQL backend. Ran JProbe, JProf, OptimizeIt against Java server/client to resolve runtime performance (did JVM performance tuning) & memory leaks.
• Did setup QA lab/network, hands-on QA, functional automation
• WinRunner & QuickTestPro WebTest module that is integrated with STAF, Selenium IDE/Remote Control for Confidential /IE Enterprise web interface, simulation of multiple devices to measure upper limit of devices the platform can support, JUnit/OptimizeIT for Java API, Load Test with Apache JMeter.
• Did performance tuning via LoadRunner 7.51: Wireless VUser script (Scenario involving Steps, Transactions, Rendezvous Points, Correlation).

Environment: Devices in mobile infrastructure: Access Points, Wireless Switches, Access Ports, Mobile Devices running Palm, PocketPC, CE.Net, DOS. Authentication methods: Kerberos (KDC service w/ Active Directory), PEAP (Radius server), EAP/TLS (Radius server), LDAP sign-in. Encryption methods: WEP, WPA-PSK(TKIP). Platform is Apache/Tomcat appl. server, JBoss JMS, SNMP, SMS, Java, PHP, Python, JSP, XML, TCL/Expect, Ant, MySQL,PerForce.

Sr. QA & Data Development

Confidential

Responsibilities:

• Wrote data driven automation tests in WinRunner 7.5 (w/ Java, WebTest modules).
• Did WebSphere administration & deployment.
• Did JVM performance tuning.
• Did bug fixing of code in WebSphere Application Developer 5.0: Java API, Session EJB, JSP, servlets, Business Integration w/ MQSI/WBI and SOA WebServices objects, XML, XSD, XSLT, PHP, DOM/SAX XML parsers, ClearCase.
• Used SOAPTest (reads WSDL) to do: functional (emulated client that sends requests for services and client handles services responses as expected), load testing (monitor response rate for simultaneous requests) of WebService object.
• Did performance tuning via LoadRunner 7.51: Web Vuser script (Scenario involving Steps, Transactions, Rendezvous/Synchronization Points, Correlation, Parameterization) and Java VUser script (Scenario involving Correlation, invoking LoadRunner Java API methods).
• Defects in TestDirector.

Environment: EDI (claim forms) & XML interfaced distributed N-Tier J2EE (IBM WebSphere MQSeries with IBM DB2 backend) Java web application for claims processing (EMC SAN backend).

Sr. Appl. Devp, QA

Confidential

Responsibilities:

• Setup/Administer two QA labs, performed porting, build/release, performance (system, database), functional QA analysis, systems engineering.
• Compared portal performance atop BEA WebLogic, IBM WebSphere (did administration and deployment).
• Wrote Unit Tests using Jtest, Junit to automate whitebox testing of Java servlets API, coding errors.
• Ran JProbe, OptimizeIt against Java servlets to resolve runtime performance (did JVM performance tuning) & memory leaks.
• Ran Purify against C/C++ code to detect memory leaks. Developed Use Cases, Interaction Diagrams, Class and sequence diagrams using UML & Rational Rose 98.
• Used HTML syntax/ link checker, Segue SilkTest, WinRunner, Rational Robot, TestDirector to measure blackbox functionality of web portal. Oracle CRM, Siebel CRM, Epiphany RealTime Personalization was setup (atop Oracle 11i application server) to manage rules based customer marketing & advertisement (paid placement) campaigns (EMC SAN backend). Used RSW Esuite, LoadRunner/Silk
• Performer for performance characterization of web portal and Oracle App. Server based applications.
• Used Big-IP to load balance TCP/IP HTTP request to FrontEndWebServers, did failover, high availability tests. SCM tools: CVS, ClearCase, PerForce, Microsoft Visual Source Safe.

Environment: web portal running on Linux/ Resin Servlet Engine (initial application on Windows-NT 4.0/ Netscape Enterprise Web Server 4.0 SP2 - NSAPI interface from Visual Studio 6.0 C++ code). Software included C++, Java servlets, JavaBean components, JMS, Tibco Rendezvous/EMS API for Real-Time Feeds, JNI to C code (interface to backend search indexes), awk, sed, C, shell scripts, D-HTML, XML/XSLT, DTD, JDBC/ODBC, SQL, stored procedures, SQL Server/Oracle RDBMS, Confidential, server/client JavaScript, Flash/ActionScript, ColdFusion MX, JSP, PHP, Perl, Python, WAP, WML, HDML, SSL, digital signed certificates, cookies, session persistence, VPN, authentication, C#, ASP.NET, VB.NET. Appls. included custom JSP tags w/ Java class written in Apache Struts framework of TomCat Java appl. server (built via Apache Ant) for user authentication.

Sr. Ecommerce Solutions QA

Confidential

Responsibilities:

• Performed integration and application development with BroadVision base ecommerce components libraries (JavaScript, C, C++) and business, retail ecommerce, publishing, financial applications, Verity search engine.
• Used RSW Eload, Mercury Interactive WinRunner, LoadRunner to stress & test robustness of all components (including BroadVision) on ecommerce servers.
• Did comparative analysis with scenario personalization applications using Confidential Commerce/Portal.

Environment: Entire ecommerce solution is designed to run on HP-UX and NT and is written in server/client-side JavaScript, JSP, C, C++, sh, D-HTML, RDBMS schema, Confidential .

Sr. Software Engineer

Confidential

Responsibilities:

• Performed development and quality assurance of an enhanced digital, interactive TV, web access, ecommerce settop box that is connected to a on- demand server via cable modem

Environment: This product has a content development kit that has dynamic HTML and JavaScript extensions. Software is written for VxWorks RT-OS, Solaris, Windows-NT and contains: Netscape Enterprise Server, JavaScript, D-HTML, C, C++, JBDC, Oracle RDBMS, CORBA, JDK.

Sr. Network Storage QA Engineer

Confidential

Responsibilities:

• Developed/ported tools to test and measure performance. Did failover via dynamic multipathing of Solaris.
• Tested software for hardware RAID solutions from Symbios Logic. Tested JDK's JMAPI and Confidential -based applets, servlets, Java application and X/Motif Enterprise Backup Products.
• Did JVM performance tuning. Wrote TCL event rules for Sun's Enterprise System Monitoring software (uses SNMP and MIB for enterprise clients/server communication, HP OpenView Trend Performance Manager to measure performance) and tested it via QC Replay.
• Wrote Confidential applications and search engines including Forms I/O for HTTP clients and interfaces between Confidential and Solaris server in Bourne shell, Perl, C, C++.

Environment: Software RAID volume manager: Veritas, Solstice Disk Suite for SCSI-2/3 Fast/Wide Copper/ Fiber Channel storage devices (SAN & NAS) on multi processor Ultra-SPARC machines. Software includes asynchronous, synchronous, memory mapped I/O, Y2k compliance, multithreaded in C, C++, Java, Perl, Python, sh, awk, sed, html, ISQL, TCL/Expect, Sun's JavaStar Java GUI test tool.