Bob Khorram Email & Phone Number

San Mateo, Ca, Us

Sunnyvale, Ca

Designed and implemented automation frame-work, in Ruby. Designed and implemented test object-models needed for exercising the product, in Ruby. Built a first-rate team of twenty-five QA engineers (and counting) to deliver the product to market, and ensure continued quality.

Santa Clara, Ca

Designed and developed an object-oriented, multi-tiered, and multi-threaded/multi-processing, test automation Framework in Python. This harness accommodated testing of a complex “infrastructure as a service” product, for VMware EXSI and Citrix XenServer hypervisors. The framework exposed RESTful, SNMP, CLI, and TCL APIs in order to control the system-under-test, as well as homemade and third party test tools.Used the automation harness developed test-cases evaluation all functional aspects of the product (i.e. high-availability, billing, firewalls, VPNs, NAT, load-balancing, etc.). Mentored and tutored other engineers in using the framework through developing templates and one-on-one attention.Researched, wrote, and implemented automated test-suites based on new feature requirements of virtual appliances, in both IPv4 and IPv6 test harnesses.Led the effort in developing a nightly regression suite used in gauging the progress of the product through different stages of development and integration.

Sunnyvale, Ca

Put together detailed project plans for all QA efforts using M/S Project. Managed junior and senior engineers, as well as being a senior technical contributor, in the QA group. Provided regular supervision and guidance through regular meetings and one-on-one code/document reviews. Oversaw and heavily contributed to putting together detailed test plans covering every feature in the product lines. Researched, designed, and heavily contributed to coding an extensive automation harness. The automation library portion of this setup controlled the Ixia1600-T, Selenium, Shenick DiversifEye, BreakingPoint Systems Storm, the Anagran router, Cisco routers, Juniper M7i. Contributed and oversaw the creation of thousands of automated test cases, consisting of well over one and a half million lines of code, based on the aforementioned libraries. Coded scripts, in Python, to utilize the Anagran Service Adaptation Interface and help the box integrate into various customer networks. Wrote a customized Netflow/IPFIX collector in C, using “Flowd” open-source code as a base. This was to accommodate Anagran’s customized “host-oriented” Netflow/IPFIX reports, as well as IPv6 reports. Researched and designed test suites for functionality, interoperability, and performance for BGP4, BGP4+, OSPFv2, OSPFv3 routing protocols. In OSPF some of the topics covered were Encryption schemes, route capacity, route convergence, topology scalability, equal cost paths, etc. In BGP4 some of the topics covered were Policy-based routing, route aggregation in both a Confederated or Route Reflected networks, route-dampening, etc. Researched and designed test suites for evaluating the functionality and performance of the layer3/layer4 forwarding on the Anagran FR-1000. Some of the topics covered by these groups of tests were thorough traffic classification/QoS assignment, policing algorithm precision, CAC for some service classes, load balancing, etc.

Designed and implemented test suites for Alcatel’s next generation Digital Loop Carrier (DLC), the Lite-Span 1701. Wrote requirements for entire broadband (i.e. ATM, IPv4/Ethernet) implementation on the DLC. Wrote detailed conformance, functional, and performance test suites (~ 900 test cases, 2000 pages) for the evaluation ATM and IPv4/Ethernet technology on the LS-7210. Wrote libraries in Perl for automating the SUT as well as the corresponding test equipment, Spirent’s Adtech AX/4000 and Smartbits SMB2000. Lead a team of four junior and two other senior engineers in implementing 100% and automating 80% of all test cases, using the automation harness through three rounds of testing. Worked very closely with both software and hardware development teams in diagnosing and resolving complex functional and performance defects in the LS-7201. Wrote a “white paper” on implementing a Markov Modulated Poisson Process (MMPP) for emulating the aggregation of thousands of bursty flows, using only two traffic sources. Implemented this model, and used it for evaluating the scheduling and policing processes on the SUT. The effort was conducted over a wide variety of classes of service (COS), using the appropriate quality of service (QOS) metrics.

Designed and documented entire test architecture for the first phase of product development. Worked closely with s/w and f/w groups in planning and implementing integration with boards and eventually ASICs. Wrote and implemented the complete test design for SONET OC-192/OC-48 (Concatenated and Channelized), IP/MPLS forwarding, including RFC1812 requirements, parsing, classification, policing, scheduling, load balancing, performance & limits, etc. Participated in defining and implementing test designs for IPv4 topology management protocols (i.e. BGP4, OSPFv2). Designed developmental integration test suites for initial integration of various components (i.e. software, ASICs, firmware, and hardware). Designed and implemented physical, link, and network layer interoperability test cases using Cisco GSR and Juniper M40 core routers. Designed and implemented initial test automation harness in TCL/Expect. Designed and documented logical subsystem architecture for the entire system. Lead the effort in writing the functional specification for the inner working of the switch/router. Defined and consolidated the entire data-plane behavior for the router. Gathered information and purchased all test equipment (Agilent RouterTester, Adtech AX/40000, and IXIA) needed for the complete testing of the first revision of the router. Lead the effort in recruiting junior and senior test engineers (including a manager) for the system verification group. Worked directly on the issues concerning the implementation of different physical layers (i.e. SONET/POS OC-48c & OC-192c, Gigabit Ethernet, Fiber Channel), different link layers (i.e. PPP-HDLC, MPLS-PPP-DHLC, ATM, MPLS-ATM, Multi-protocol Frame-Relay), and different network layers (i.e. unicast IP, multicast IP). Worked closely with other senior engineers in sorting out the issues for implementing QOS-based routing and path selection for IP traffic.

Foster City/San Jose

Participated in every aspect of developing and delivering a 10 Gigabit/sec ATM enterprise switch to Beta-test customers. The functionality of the switch included ABR Explicit Rate, ILMI 4.0, PNNI 1.0, LANE version 1.0 service, and Classical IP. Investigated the impact and implementation of each new feature on the existing hardware and software architecture. Designed and implemented functional, conformance, load, interoperability, and fault-management test suites for every component on the system. Developed TCL scripts for controlling and regression testing of the product. Designed and implemented over a hundred different state-machines for exercising and stressing every aspect of UNI signaling and ILMI negotiation/registration, using the Tekelec Chameleon-Open test gear. Using test equipment from Adtech and Able Communication thoroughly investigated the Quality of Service criteria on the switch. Put together a system test group comprised of five junior engineers. Trained, coordinated, and supervised their efforts within the group, as well as with the development staff. Managed the implementation and use of the XDDTS bug-tracking software from PureAtria (Rational). Investigated, found, and corrected software defects in PVC-manager and UME-manager software components.