Dave Sherohman

dave@sherohman.org
+46 46 288 03 84 (Sweden)
+1-612-326-6137 (USA)

Languages:

Operating Systems:

Network Protocols:

Databases:

Work Experience:

NomadNet, Inc., 2004 - 2008: Owner/Consultant
Independent Freelancer, 2009 - Present
Providing software development, system administration, networking, hardware purchase/installation, and network security services to clients such as:

• Westling Manufacturing (10/04-02/06) - Continued system and network administration duties of previous position as a primarily-telecommuting/off-site consultant. Some development of in-house software in Perl and PostgreSQL.
• GMAC-RFC (04/06-06/06) - Worked with Unix admin team to develop scripts using Perl and ssh to automate administration of multiple servers and ensure compliance with audit requirements.
• Bazza's Bazaar (07/07-08/07) - Implemented web interface to collect information on items for sale/wanted and notify the site owner via email to facilitate sales of these items.
• Cemper.com (08/07-12/07) - Designed and developed Perl and MySQL-based system to analyze web server logs for several hundred domains, identify requests from unauthorized bots/spiders, and issue email warnings to the admins and/or automatically generate firewall rules blocking further access from the offending addresses.
• CyberPenguin (09/07-11/07, 09/08-12/08, 05/10-06/10) - Created user and workstation management software for this startup cybercafe using Perl and MySQL.
• Scholar Invest Inc. (01/10-07/10) - Implemented client's website design and corresponding features using the Drupal Content Management System, including internship listings and Facebook integration.

• Operating Systems: Linux (Debian, Red Hat), HP-UX, Macintosh OS X
• Software Development: Perl, JavaScript, PHP, Drupal, shell scripts (bash, sh)
• Databases: PostgreSQL, MySQL, Oracle PL/SQL
• Network Services: HTTP (apache 1.3, apache 2.0), SMTP (exim, sendmail), SSH, TCP/IP, DHCP, NTP, NFS, DNS (bind/named), software version management (git/cvs), networked backup (amanda), PayPal IPN, custom telnet-based protocols
• Security: Firewalls (ipchains, iptables), IP Masquerading/NAT (ipchains, iptables), VPN (vtun), DMZ (iptables), port forwarding (iptables), restricted administrative access (sudo)

FishTwits, Ltd., 2009 - 2010: Chief Technological Officer
Designing, developing, and maintaining the technology behind this Twitter-based social networking startup, including management and administration of web hosting servers as well as the software itself.

• Software Development: Perl, JavaScript/AJAX
• Network Services: HTTP, OAuth, Twitter REST API, git
• Operating Systems: Debian GNU/Linux, Macintosh OS X
• Databases: MySQL

Westling Manufacturing Co., 2001 - 2004: Systems/Network Administrator
Sole systems and network administrator for a multi-site, international network of approximately 350 hosts, printers, thin clients, and other network-attached devices.

• Operating Systems: Linux (Debian, Red Hat, Mandrake, Slackware), Microsoft Windows (NT, 2000, ME, XP, 2003 Server), DG/UX
• Network Services: HTTP (apache 1.3), SMTP (exim, sendmail), SSH, TCP/IP, DHCP, NTP, NFS, NIS, DNS (bind/named), networked backup (amanda), software version management (cvs), service request tracking (rt, rt3, custom software)
• Security: Firewall (ipchains, iptables), IP Masquerading/NAT (ipchains, iptables), VPN (vtun), HTTP proxy (squid)
• Software Development: Perl, shell scripts (bash, sh)
• Databases: PostgreSQL

BridgeCom, Inc., 1999 - 2001: Senior Programmer
Developed cross-platform server software for voice mail and integrated messaging products.

• Software Development: C, Perl, shell scripts (bash), procmail
• Operating Systems: Microsoft Windows NT, Linux (Debian)
• Network Services: HTTP (apache 1.3), TCP/IP, SMTP (sendmail), custom HTTP-based and telnet-based protocols, software version management (cvs), bug tracking (jitterbug)

JobBOSS Software, 1998 - 1999: Developer, Advanced Design Team
Developed real-time data collection system and a generic object-relational mapping layer to support future versions of the company's products.

• Software Development: Borland Delphi
• Network Services: DCOM

CorLabs, Inc., 1996 - 1998: Programmer
Worked on a variety of projects for the company's clients.

• Software Development: Microsoft Visual Basic, Borland Delphi, C, Microsoft Office scripting (Excel, Access)

JAG Systems, 1995-1996: Developer/Administrator
Provided technical support for survey and document scanning services.

• Software Development: Borland Delphi, Microsoft Access
• Operating Systems: Microsoft Windows for Workgroups, Windows NT, Solaris

American Arbitration Association, 1994-1996
Initially assigned as a temporary admin assistant, but quickly gained approval to develop a custom contact management system. Later established a consulting relationship to provide ongoing support for the system after the conclusion of the temp assignment.

• Software Development: Borland Paradox for Windows

United HealthCare, 1993-1994: Service Tracking System Administrator/Developer
Originally hired as STS administrator, then took over development when the original developer resigned.

• Software Development: Microsoft Access

Education

University of Minnesota, 1989-1992
Chaska High School, 1985-1989