TECHNICAL SKILLS:

• C/C++
• Java
• Python
• Perl
• GNU Toolchain (GCC
• make
• Binutils
• GDB
• Autotools)
• Shell Scripting(bash/ksh
• sed
• awk
• regex's)
• Security Technologies (X.509
• Kerberos) and Libraries (SSL)
• Building and Using Libraries(file
• size
• nm
• bjdump
• ranlib)
• GNU gcov and gprof
• Pipes(dup/dup2
• mkfifo)
• POSIX Threads
• Oracle 10g/9i
• SQL Server 2008
• MVS/IBM Mainframe Technologies
• FORTRAN90
• COBOL/JCL (OS/390 & z/OS)
• Squid
• NFS
• Samba
• Webmin
• nmap
• Scapy
• tcpdump
• Wireshark
• Kismet
• Monit
• Selenium
• Django
• Gnuplot
• Matplotlib
• Eclipse

PROFESSIONAL EXPERIENCE:

Confidential

Linux Engineer Lead

Responsibilities:

• Developing Methods to Enumerate & Manage Assets (Ansible, GoCD, python, bash, Solarwinds, nmap, git)
• Development & Automation of Health Checks/Recovery & HA (Ansible, Nagios, monit, RHCS, DRBD, GFS2)
• Researching Open Source Alternatives to Existing COTS IDS/IPS Sensor Grid (Suricata, snort, Sagan, OSSEC, AIDE, Bro)
• Researching Firewall Load Balancing w/ F5 & Benefits of WAF & Forward/Reverse Proxy for the Ingress/Egress Cyber Defense Stack

Confidential, Chicago IL

Sr. Linux Administrator

Responsibilities:

• Administration 5K+ Dell, HP & Sun Hosts (RHEL, CentOS, Solaris, OEL, Suse, AIX)
• Provisioning & Configuration Management w/ Puppet, Foreman, Kickstart & Cobbler (Custom RPM Development)
• Automating Infrastructure Tasks w/ Open Source Tools & Custom Scripts (bash, ksh, python, php)
• Improving Server Performance & Cluster HA w/ RHCS, Scripts, Profiling/Analysis & Kernel Tweaking

Confidential, Chicago IL

Unix/Linux Systems Analyst

Responsibilities:

• Administration 1500+ HP, Dell and Sun Servers (RHEL, Solaris, SUSE)
• Systems Infrastructure Automation, Development & Troubleshooting (ksh/bash, python, perl, LAMP stack)
• Provisioning (Cobbler), Configuration Management (Puppet), Symantec Cluster Server Administration (HA)
• Monitoring Development/Administration (OpenNMS, BMC Patrol, scripting) & Systems Troubleshooting
• Job Processing Administration (BMC ControlM)
• Storage/Backup Administration (NetBackup, NetApp VTL, EMC DD, LTO4/5, NFS, VxVM)

Confidential, Chicago IL

Linux Systems Engineer, Systems Team

Responsibilities:

• Administration 500+ HP, IBM and Sun Servers (RedHawk, RHEL, CentOS)
• Building, System Tap Profiling and Deploying Custom RT Low Latency Kernels (RHEL, RedHawk)
• Configuration Management with BCFG2, RPM's, Images and Scripts (python, perl, bash, yum repos, git, rpmbuild)
• Latency Testing Drivers, Network Topologies and Configurations(OpenOnload, SFC, CPU Affinitizing/Shielding, sockperf, sfnettest)
• Developing Internal LAMP - Stacked Site Containing Dynamic Server & Network Data (PHP, httpd, MySQL, lldpd, python, cron)
• Architecting/Administering Linux Desktop & Dev Server Shared Cluster Storage (LVM, gluster, piranha IPLB/LVS, NFS, NIS, autofs)
• Script Development for Task Automation (Post-Installations, Multicast Testing, Server Querying, ILOM/BIOS Configs, etc. )
• Virtualizing Non-Critical Instances for Various Purposes (KVM, VMware)
• Configuring Network Device Backups with Rancid

Confidential, Chicago IL

Linux Systems Administrator, Operations

Responsibilities:

• Configuring, Implementing and Maintaining User, Server and Network Device Authentication and Security (OpenLDAP, ModSecurity, PAM, ASA, iptables/conntrackd, BIND)
• Configuring Server/Network Monitoring and Performance Gathering Tools (Nagios, Ganglia, Cacti, httperf)
• Configuring Load-Balancing, Re-writes, Redirects and Security to Site Origin w/ Citrix NetScaler and Apache mod rewrite
• Confuring OOB iLO Networking for ProLiant Out-Of-Band Management
• Consolidating and Facilitating Storage Arrays with iSCSI, SASBeast and SATABeast
• Managing Configurations, Packages, Services and Dependencies (BCFG2, git)
• Automating/Scripting Operational Tasks (Bash, PHP, Python, Javascript)
• Database Administration (MySQL, PostgreSQL, Oracle)

Confidential, Chicago IL

Linux Systems Administrator, Operations

Responsibilities:

• Developing/Deploying Scripts for Task Automation and Operational Needs (Bash, Python, Perl, PHP)
• Defining, Managing, Monitoring and Optimizing Processes, Filesystems, Memory and CPU Core Distribution
• Building HA Load-Balanced Clusters with HAProxy/Keepalived, DRBD, Heartbeat, Pacemaker, Red Hat Cluster Suite and MySQL Cluster; Installing, Configuring, Optimizing and Maintaining Apache, PHP and SQL/Data Nodes (LAMP)
• Compiling, Patching and Customizing Source Code and the Kernel for Custom Builds
• Linux Kernel Network Subsystem Performance Tuning for 10-GbE and Infiniband Infrastructures
• Data Center Support: Racking, Installing and Configuring Servers, Routers and L3 Switches
• Building, Provisioning(PXE/Cobbler), Deploying and Maintaining(Puppet) Internal and Client Servers

Confidential, Chicago IL

Systems Analyst, Operations

Responsibilities:

• Linux & Windows Server Administration (RHEL, CentOS, Fedora, Debian, Windows Server)
• Developing Scripts to Automate Operational and Business Processes (python, bash, php)
• Application Deployment and System Security(.NET, JBoss, Ant, SFTP/SSH, SELinux, TCP Wrappers, SSL, PGP)
• Developing Operations Run-Time Monitoring Dashboard Using LAMP; Administering Web Services (Tomcat, Squid)
• Java Application Development/Deployment for Opting-Out Clients' Customers
• Developing Custom SQL/Stored Procedures for Report Generation and 24x7 Systems Alerting/Monitoring
• Cisco Switch and Router Configuration; PIX/ASA, NAT, DNS, DHCP, NIS, LDAP, PAM Configuration
• Maintaining SQL Server 2008 within Polyserve Environment

Systems Administrator, Cardiology

Responsibilities:

• Developing, Maintaining & Integrating Windows, Unix & Linux-Based Cardiology Medical Systems; Package Development/Administration (rpm build, yum, apt, GNU Toolchain); Automating/Performing Backups & Restores; Investigating Crash Dumps, Core Files
• Database Management (SQL Server 2005, Access, Informix-4GL, DICOM/PACS/MySQL)
• Front-End App Development & Support (VB, Cathcor(Unix/Linux), KinetDx); Providing Statistical Reports via Linked Templates & SQL Queries
• Training/Supporting Users after Software Implementations, Upgrades, etc.

Internship

Responsibilities:

• Unix User/Security Administration, User Field Support/Troubleshooting
• Workstation/Network Configuration & Deployment (Cisco IOS, Novell Netware)