Leonard Adam (Chip) Rosenthal

Austin, Texas
fax: +1-815-301-8302
email: chip at unicom.com


Objective

Product architecture, design, programming, or system engineering. Particular interest in Internet systems and protocols, Linux and POSIX systems, open source software, communication and networking systems.


Employment


10/06 – present

Pervasive Software – Austin, Texas
Contract Developer

Design, research, and development for Internet-enabled products and services, reporting directly to CTO. Architected and implemented several web microsites for ecommerce and community functions. Research data mining techniques for prototype web service products. Linux, Drupal, php, Ruby on Rails, Java, MySQL, SOAP.

1/06 – 9/06

Metadot – Austin, Texas
Contract Developer

Lead designer for a helpdesk "trouble ticket" management system, operated as a hosted web application. Ruby on Rails, AJAX, MySQL, Linux.

6/05 – 12/05

BroadQ – Austin, Texas
Contract Developer

Development for an embedded steaming media application running on a multi-processor game console. Setup GNU toolchain for cross-development under Linux for a MIPS target environment. Configured and profiled Linux kernels.

6/04 – 5/05

Veritas Software – Austin, Texas
Contract Developer

Designed and implemented Linux environment for system recovery product, integrated into Veritas Net Backup. Implemented diskless Linux boot, root filesystem image, boot scripts, system hardware discovery and initialization. Implemented localization utilities and routines. Coding and debug for Linux, HP-UX, Solaris, AIX, Windows platforms. C++, embedded Sybase.

3/01 – 6/04

Unicom Systems Development – Austin, Texas
Owner

Designed and implemented an award-winning web service to aggregate community weblog messages via trackback; a web-based X.509 certificate authority with enterprise workflow management; a server-based system to process incoming emails for anti-virus scanning.

1/99 – 2/01

Covad Communications – Austin, Texas
Principal Engineer

Supervised team responsible for developing Internet services in the Covad nationwide network. Enhanced the original Laser Link VISP platform (see below) for support in a broadband DSL environment. Analysis and design for RADIUS, DNS, email, and web infrastructure. Produced a Linux distribution optimized for server farm applications.

Laser Link Communications – Austin, Texas
Staff Engineer

Prior to acquisition by Covad, was principal architect of an email system designed to support millions of users in a "virtual ISP" (VISP) environment. Designed protocol and implemented daemon and client library for user authentication in a distributed electronic messaging system. Integrated web and FTP services into VISP platform. Designed configuration and provisioning management.

1/98 – 5/99

The University of Texas at Austin – Austin, Texas
Lecturer

Adjunct instructor in the Graduate School of Library and Information Science. Taught Introduction to Internet Resources and Services.

11/95 – 5/96

Deja News – Austin, Texas
System Administrator

Responsible for computer and network operations at one of the first Internet search services. Managed BSD Unix based servers and routers. Designed and implemented high-performance, high-reliability NNTP (Usenet news) server daemon.

12/90 – 10/95

Unicom Systems Development – Austin, Texas
Owner

Design, programming, administration, and technical consulting services, with focus on Unix systems and Internet services.

Consulting and engineering studies. Provided technology assessment incorporated into business plan of a successful Internet startup company. Developed specifications for data acquisition and analysis systems on a mobile pavement test laboratory. Developed system architecture for a nationwide fax delivery network.

Software development. Device driver for a multi-channel printer controller. Software to communicate with a Verifone credit authorization terminal.

Internet security certification. Performed remote analysis of TCP/IP networks, evaluated network designs, located areas of vulnerability and documented recommendations for engineering and management.

3/86 – 11/89

Dallas Semiconductor – Dallas, Texas
Senior Systems Engineer

New product design and development in the Digital Telecommunications group. Developed system specification for a T1 network interface unit, a self-contained FCC-preregistered device for interconnection to T1 networks. Designed network control logic and implemented in semi-custom VLSI.

Senior Test Engineer

Developed self-test microcode, implemented test program and performed manufacturing introduction for a DSP-based ADPCM speech compression IC. Wrote run-time environment and cross-development tools for mixed signal test system.

8/82 – 3/86

Intel Corporation – Santa Clara, California
Senior Test Engineer

Supervised group responsible for Intel's high-end VLSI test and computing equipment in the Microprocessor Division. Responsible for vendor interface and equipment utilization. Developed test and characterization programs, and test programming standards.

Product Engineer

Test development and manufacturing introduction of the 80186 microprocessor. Sustaining engineering of 8085 microprocessor.


Education

Cornell University – Ithaca, New York
Bachelor of Science in Electrical Engineering, 1982

University of Texas at Dallas – Dallas, Texas
Graduate School of Computer Science, Masters Program, 1988-1989


Technical
Skills

Design and programming System, network, and Internet administration

Affiliations

Conferences
and Invited
Talks

Awards and
Recognitions

Open Source
Software


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