Linux Systems Engineering

Lead Systems Engineer for Linux and Storage- System build management for CentOS deployments.- Configuration management using Ansible.- System hardware evaluations for low latency environments.- OS tuning for low latency.- Storage management of Netapp filers.

Systems Engineering and Storage Engineering for all enterprise projects.- Lead Systems Engineer for all storage related projects.- Application Architecture and design.- System tuning and low level linux troubleshooting.- KVM network and system design.

- Network shared storage design and implementation using industry standard products and also homegrown solutions where applicable.- Distributed computing systems management.- Systems provisioning and configuration management.- System tuning for Red Hat linux.- Monitoring systems design.- Precision network timing devices utilizing both NTP and PTP.

Enterprise Platform Engineering for Unix, Linux, and VMWare.- Engineering for all colo server implementations.- Low latency tuning for trading systems and market data systems. Both kernel and network stack tuning.- Hardware evaluations, testing, and standardization. This includes complete systems and related peripherals.- Standardized 10g network card implementations for low latency applications.- Evaluation and standardization for RHEL system builds. (Also Maintained and updated aging Solaris builds as needed.)- Complete engineering design for PTP and NTP timekeeping using Meinberg appliances and GPS antennas.

Unix and Linux platform engineering and systems administration.- Linux kernel and network tuning for low latency trading applications.- Maintained hardware standards for the firm. This included evaluations of new systems hardware and related components.- Systems administration including new builds, patching, and general hardware maintenance.- Managed systems co-located at various Exchanges.- Implemented precision time appliances using CDMA and GPS sources for use by trading applications.- Oracle and Sybase systems management. Storage management of associated devices ranging from ISCSI and Fusion IO, to LVM volumes.- Maintained legacy Solaris servers.

Senior Engineer focusing on Solaris x86 and Red Hat Linux infrastructure projects.- Cloud Computing migration Engineer. Part of a collaboration effort between diverse business units to migrate applications and services to a"Virtual Datacenter" model that is locale agnostic and provides compute resources on demand. - Virtualization Engineer using technologies like VMWare ESX/ESXi, Xen, and Solaris Zones.- Infrastructure engineering and support for core services. Responsible for the design, care and feeding of diverse DNS infrastructure that hosts several hundred zones. - System performance tuning to maximize both the hardware and operating system resources as it relates to the needs of an application. The includes kernel level and network stack debugging.- Systems engineering support for internet facing web and smtp applications.- Hardware evaluation, installation, and maintenance.- Managed security related projects like system hardening and audit remediation.

Part of a small team of Engineers that managed the complete SMTP relay environment outside of the Microsoft Exchange infrastructure. - Managed the first layer of a defence in depth security model for inbound SMTP. This was done with filtering by Google/Postini.- Managed a globally diverse farm of edge SMTP relays. Locations were strategic to withstand regional outages to the internet without affecting production.- All security requirements related to email distrubution. Secure connections, TLS mail delivery, PGP encrypted mail, Reputation management with SPF records.- Managed the corporate SMTP firewall. This was a complex mix of Linux based hardware, java based management software, and database back end. Maintained security and compliance for the firm by inserting rules into the mail flow. These were not limited to disclaimers, blocking, redirection, and archiving.- Performance tuning for system hardware, os, and applications.- Managed corporate email archive feeds for Compliance groups.

Provided Unix (Solaris) and linux (Red Hat) support.

Senior Administrator responsible for all Internet facing applications and hardware.- Sun server administration.- Web server administration for Iplanet, Apache, Weblogic, and JBoss.- DNS server administration.- SMTP relay configuration using Sendmail and Qmail. Created complex configurations for mail routing to both end users and applications.- Security administration and problem remediation.- Package management and application configuration.

Unix consulting and large scale server installations.

Family business made up of high volume gasoline stations and repair shops.