Jonathan A. Lewis
2612 Ponkan Meadow Drive
Apopka, FL 32712
jlewis@lewis.org


Qualifications:

Network Administration including:
Installation, configuration, and maintenance of routers, switches, and dial-up access servers from Cisco, Brocade, Juniper, Arista, and numerous other manufacturers.
Extensive experience with Internet routing/peering (BGP [including use of BGP for global CDN anycast], OSPF, ISIS) on Cisco, Brocade, Juniper, and Arista gear, flow data analysys, routing optimization via determining, establishing, and managing peering relationships.
Installation, maintenance, and customization of Cacti, MRTG, Cricket, Big Brother, and Nagios for network monitoring, and RANCID for network device configuration change tracking, archiving, and automation.
Interfacing with telco vendors, repair technicians, and customers in the ordering (including research and interpretation of ILEC tariffs), installation, and troubleshooting of analog phone lines, ISDN BRI and PRI, T1, T3, Frame-Relay, ATM, OC3, gigabit, 10G, 100G, and 400G ethernet circuits.

System Administration including:
Installation and administration of Linux servers supporting Xen virtualization, iSCSI (initiators and targets), HTTP, public FTP archives and mirrors, NNTP (INN & Typhoon), SMTP (Sendmail 8.x, qmail), POP3, IMAP, webmail, multi-port Linux based SLIP/PPP servers providing Internet service.
Installation, configuration, dialplan design, AGI scripting, and minor channel driver hacking for the Asterisk softswitch.
Installation and maintenance of DNS servers (Bind 4.x - 9.x, Unbound, PowerDNS, and rbldnsd) serving thousands of zones as well as zones with millions of records.
Experience dealing with Unix system security and network DoS attacks, break-in and break-in-attempt detection, and tracking of system intruders.
Extensive experience building and using a wide variety of software packages on multiple Unix/Linux platforms.

Programming languages used:
perl, Python, Bourne Shell, JavaScript, C, PHP, Visual Basic, Turbo Pascal, and Quick Basic.

Operating systems used:
Linux (various distributions, I'm comfortable building, applying patches, and creating new patches for the Linux kernel, patching or building custom RPMs, building packages from source), OS X, MS DOS, MS Windows XP, 2000, NT, 98, 95, & 3.x, MS Windows For Workgroups, Macintosh System 7. Some experience with Solaris, SCO OpenServer, FreeBSD, and Motorola SVR4 Unix.

WWW experience including:
Installation, maintenance, and security of NCSA, Apache, and C2 Stronghold servers, including large virtual servers (thousands of sites per system) and SSL servers. Development of HTML forms and CGI scripts. Perl CGI interfaced with MySQL databases. Co-authored chapter 14, Unlocking the Mysteries of CGI, in Netscape & HTML EXplorer, by Urban LeJune.

Education:

Bachelor of Science, Chemistry, Florida State University, April 1992.
Physics Minor.

Three years graduate research in Inorganic Chemistry at University of Florida, January 1993 through December 1995.

Internet / IT Work Experience:

Senior Network Engineer, Blue Stream Fiber, Coral Springs, FL, Oct, 2023 to present.
Maintenance and development of a mixed network of primarily Juniper and Cisco gear.
Coding (perl, Python, bash) to automate tasks, generate & deploy configs, API interfacing to enable automation.

Senior Network Engineer, Highwinds / StackPath, Winter Park, FL, May, 2013 to Oct, 2023. (Moved from Highwinds to StackPath as part of StackPath's acquisition of Highwinds in Feb, 2017.)
Deployment and maintenance of Brocade, Cisco, Juniper, and Arista routers, switches, load balancers, internal and external routing / peering / traffic engineering for a global network providing CDN, colo, and transit services.
Prolific coding work (in perl, Python, and bash) to automate and/or standardize tasks and create tools for the network engineering team, and to add features to StackPath's home-grown perl-based NMS. Interfacing with multiple RIRs (ARIN, RIPE, APNIC, Registro.br) to manage RIR records and resource transfers due to acquisitions & divestitures.

Senior Engineer, Team Cymru, Lake Mary, FL, February, 2013 to May, 2013.
Linux system administration. Internet security related data collection & analysis.

Principal Network Engineer, Atlantic.Net , Gainesville/Orlando, FL, February, 1999 to March, 2013.
Network design, deployment, and maintenance of routers, switches, and access servers in a multi-homed regional ISP network covering the southeastern US and a 25,000 SqFt data center servicing hundreds of ethernet connected customers with gigabits of Internet transit.
Configuration of interior and exterior routing protocols. BGP tuning to balance incoming and outgoing traffic across multiple transit circuits of varying capacities. Designing network redundancy / high availability using RSTP, HSRP, VRRP, Linux heartbeat and ldirector. Design and implementation of MPLS VPNs, MPLS TE, QoS for VOIP on cisco and Linux routers. Maintenance of IRR data, scripting IP address space utilization auditing, and dealing with ARIN when applying for additional IP space or transferring space and ASNs from acquisitions. Specification, installation, termination, and testing of POTS, DS1, DS3, 10/100/1000BaseT over CAT5/CAT6, MMF, and SMF.

Unix (Linux, FreeBSD, and Solaris) System administration and installation. Construction of new servers for greater scalability and to add new services. Solaris/ZFS volume management including scripts to handle snapshots and automate backups of cloud VM storage. Extensive experience with anti-spam measures in application to incoming and outgoing mail flows. Wrote several anti-spam patches and extensions for qmail. Scripts and C code to parse RADIUS accounting data and bill for simultaneous dial-up logins. Many scripting projects, most in perl, often using DBI to access MySQL databases.

Unix/Network consulting, January, 1997 to present.
Consulting for various ISP's and corporate networks including building GNU and ISC applications on old Unix systems, sendmail tuning, BGP and OSPF configuration, Linux kernel hacking, Red Hat Linux installation, maintenance, and remote management.

Principal System and Network Engineer, Florida Digital Turnpike, Gainesville, FL, May, 1995 to February, 1999.
Designed, built, and maintained one of the area's first locally owned Internet service providers. Grew from 0 customers and 1 POP to 3000 customers and 4 POPs.

Research Assistant, University of Florida, Department of Chemistry, 1993-1995.
Assisted with installation and maintenance of departmental workstations and Linux servers, as well as the chemistry department's physical network.

Database Programmer, Doctors Hospital, Sports Medicine Division, Miami, Florida, June, 1992 to December, 1992.

Undergraduate Research under Professor Ken Goldsby, Florida State University, Spring 1988 to Spring 1992.
Designed and wrote several programs including a software package that controls a Milton Roy Spectronic 1201 spectrophotometer.

General Work Experience:

Graduate Research under Professor Gus Palenik, University of Florida, January, 1993 to December 1995.

Teaching Assistant for general chemistry lecture and laboratory courses, University of Florida, January, 1993 to December 1995.

Stringer sports photographer, Associated Press, Tallahassee, Florida, Fall 1989 to Spring 1992.

Veterinarian's assistant, Droughton Animal Clinic, Miami, Florida, Summers, 1989-90.

Sports photographer, Florida Flambeau, Tallahassee, Florida, 1987.

Activities:

Vice President: Wekiva Run HOA 2017 to 2020.

President: Florida State Cave Club, 1991 to 1992.

Life Member: Alpha Epsilon Pi Fraternity, since Spring 1992.

Jon Lewis jlewis@lewis.org