* Tech lead/manager for ~3 engineers* Streamlined the release process* Increased by tenfold the simultaneous request capacity of a Ruby on Rails application by identifying and removing code bloat* Significantly minimized the spawning of code bloat and software regressions by creating/compiling and documenting best/worst Ruby and Rails practices* Created and documented a Ruby and Rails style guide for all software engineers to follow the same coding style* Administered all Gentoo Linux servers, networking devices (routers, switches) and tools, including: - LVS/keepalived active-active automatic failover load balancers - Apache web server + Phusion Passenger app server + PostgreSQL DBMS serving Ruby on Rails applications - Postfix mail server + Courier IMAP server + Amavisd-new content filtering/SPAM detection - Bind DNS, ebtables, iptables, OpenLDAP, OpenSSH, OpenSSL, OpenVPN, Unison file synchronizer, Xen hypervisor* Recruited and interviewed candidates* Mentored new team members

* Installed and maintained all Gentoo Linux servers, networking devices (routers, switches) and tools, including: - Bind DNS, DHCP, ebtables, iptables, OpenLDAP, OpenSSH, OpenSSL, OpenVPN, Xen hypervisor - Squid proxy* Migrated file and print services from Novell Netware to Samba file server and CUPS print spooler on Gentoo Linux* Designed and implemented a simple and effective network authorization policy management system using DHCP conditionals + Squid proxy* Projected and implemented a redundant network backbone interconnecting 350,000 sq feet of buildings spread throughout a 30 acre lot

* Installed and maintained all Gentoo Linux servers, networking devices (routers, switches) and tools, including: - Apache web server + Phusion Passenger app server + PostgreSQL DBMS serving Ruby on Rails applications - Postfix mail server + Courier IMAP server + Amavisd-new content filtering/SPAM detection - Bind DNS, ebtables, iptables, OpenLDAP, OpenSSH, OpenSSL, OpenVPN, Unison file synchronizer, Xen hypervisor* Enhanced availability/performance/reliability of production services by implementing active-active automatic failover load balancing using LVS/keepalived and policy-based routing

* Installed and maintained all Microsoft Windows and Gentoo Linux servers, networking devices (routers, switches) and tools, including: - Microsoft ActiveDirectory, DNS, DHCP, Proxy - Oracle DBMS on Gentoo Linux* Worked on the migration of an in-house Cobol ERP system + several information silos to a commercial ERP system, integrating all company departments* Developed an API enabling the new ERP system to communicate with IBM mainframes via IBM 3270 protocol, EBCDIC character encoding, over X.25/Frame relay networks* Reduced printing costs in half by migrating a per user based printing topology to department based* Setup a new PBX and programmed lowest cost routes resulting on a ROI of ~11 months based on phone call cost savings* Led the project and construction of the company's new headquarters and production plant (~111,000 sq feet)

* Worked on the TOPFLOW Experiment, consisting of a system that converts data read from nuclear reactor refrigeration system matrix sensors into a set of bubble information files* Optimized the system, reducing the data converting time from hours to seconds

* Projected and implemented an ethernet network to interconnect several islands within the company* Migrated IBM RISC 6000 RS232 ASCII terminals to a VT100 terminal emulator running on Microsoft Windows* Worked as an evangelist on using a CAD system to streamline the shoe design process, which ended up reducing the prototyping time from a week to a few hours