Carl R. Friend

Personal info removed for Internet use

- Objective -

   To contribute to the success of an enterprise by utilizing my third-of-a-century of experience in the integration and management of heterogeneous network and operating systems environments; to provide that enterprise with stable, fault-free systems and networking environments; to function as a trusted authority on virtually all protocols in common use on interconnected networks.

- Technical Summary -

 Operating Systems:   Linux (Red Hat, CentOS), UNIX (AIX, HP-UX, IRIX, Solaris, ULTRIX), Windows XP/7/8, VMS

 Computing Languages: C, UNIX shell scripting (ksh, bash), Perl, Python

 Database Technology: MySQL, PostgreSQL, PHP, SQL as a language

 Storage Technology:  NetApp Filers, EMC CLARiiON, Veritas Volume Manager, ZFS, Solaris Volume Manager, Linux LVM

- Professional Experience -

 2001 - 2013:   The MathWorks, Inc., Natick, MA

                         Senior UNIX Systems Administrator

· Architected and implemented a "NOC-on-a-shoestring" providing a world-wide view of over 1,200 systems and 15,000 pieces of performance data using Nagios and Icinga; conducted mathematically-rigourous reviews of notification parameters to eliminate false-positive critical alerts

· Managed over 100 terabytes of network-attached and SAN storage; provided accurate forecasts for expansion and growth of same

· Designed and maintained systems monitoring and performance analysis tools using custom-written, open-source, and commercial programs and scripts

· Performed builds and maintenance of open-source software tools (e.g. GCC)

· Assisted in the specification and implementation of a Storage Area Network - a first for The MathWorks

· Deployed and managed DHCP servers worldwide, with redundant configurations

· Managed global DNS (ISC BIND), internal and external, with over 250 domains; developed automated tools to assist in this task

· Leveraged Solaris zones (containers) to provide services in a more cost-effective manner than using individual systems

· Deployed and managed Apache and MySQL/PostgreSQL services for internal use

· Assisted DBAs in building out high-availability replicated MySQL instances using Continuent's Tungsten software

· Deployed and managed Veritas VCS enviroments with multi-year 100% uptime

· Maintained better than 99.99% reliability and uptime of critical systems

· Mentored junior administrators

 1999 - 2001:   PlanetCAD, Inc., formerly Prescient Technologies, Inc., Westborough, MA

                         Senior UNIX Systems Administrator

· Achieved better than 99.99% systems availability while managing a complex tightly-integrated suite of heterogeneous UNIX and NT systems in an enterprise TCP/IP network

· Lead architect and implementer of highly stable Intra- and Extra- net environments

· Planned and executed a 40-mile move of the computing environment with no unscheduled downtime

· Managed and supported reliable e-mail, DNS, NIS, NTP, NFS, and web services

· Designed and instituted security policies for Internet connectivity

· Successfully defended Internet-exposed machines from intrusion

· Developed technical strategies for the Corporation

· Designed and deployed VPN technology and policies for remote offices

· Managed vendor relationships

· Mentored junior administrators

 1989 - 1999:   Stone & Webster Engineering Corp., Boston, MA

                         Senior Systems Programmer/Analyst

· "Internet Architect" and primary UNIX "guru" for the Corporation

· Engineered, implemented, and administered a robust Internet connection for over 2,000 users

· Managed firewall configurations and security policies

· Supported Sendmail, POP, NTP, NNTP, LDAP, and other vital services

· Designed and remotely implemented dependable Internet services for our Taiwan office

· Participated in the design of the Corporation's wide-area network

· Advised on network issues and provided problem resolutions for multiple domestic and international sites

· Developed implementation and upgrade plans

 1983 - 1989:   Intergraph Corporation, Westborough, MA branch

                         Senior Customer Support Specialist

· Supported VAX, PDP-11, and UNIX hardware and software in a field service environment

· Provided systems management and programming consulting to clients

· Provided technical support and training to clients and local staff

· Maintained and repaired client CADD equipment

 1980 - 1983:   ADP Network Services, Waltham, MA Data Center

                          Senior Hardware Systems Engineer

· Maintained and repaired mainframe (PDP-10s) and minicomputers (PDP-11s) utilized for world-wide timesharing

· Provided technical and software support

- Volunteer Efforts -

 1997 - Present:  Retro-Computing Society of Rhode Island, Inc., Providence, RI

                           Director and Secretary

· Serve as Director and Secretary for a non-profit computer preservation and education concern

· Maintain corporate records and meeting minutes

· Define and implement corporate policies.

· Research, restore, and maintain computing "antiques" in operable condition

· Participate in educational symposia related to RCS/RI's mission

· Assist in research efforts on historic hardware for academic and private parties

 2013 - Present:  Member of the Icinga Development Team

· Primary foci in Solaris packaging and portability/compatibility

· General bug-squashing

 1998 - 2006:  Ocean State Free-Net, Providence, RI

                       UNIX Systems Administration Consultant

· Supported Sendmail/SMTP, security, SNMP, HTTP, and mail-list services

· Custom-designed and implemented a Linux-based firewall for OSFN's computing center; provided ongoing support for same

· Provided security consultation and support/design services

· Administered OSFN's production and development networks

· Provided strategic and tactical advice for other technical facets of OSFN's operations

· Engineered and executed two moves of OSFN's server facility with no unscheduled downtime