Unix System & Network Administrator Resume Chicago, IL - Hire IT People

OBJECTIVE

To utilize my computer management, training, and mentoring experience in a dynamic environment.

TECHNICAL SKILLS

Machines: Linux Servers and Workstations running RedHat Enterprise, CentOS, and Scientific Linux Rel. 4, 5, 6 & 7. Microsoft Windows Server and Desktop environments.

Network: Cisco routers & switches, Arista switches, SolarFlare 10GB,.

Security: Cisco ASA Firewall, Checkpoint and StoneGate Firewalls,Entrust PKI, ISS Realsecure, Linux iptables, RSA SecureID, CFS, TIS Firewall Toolkit, Tripwire, SSH, Skey, SOCKS, Exchange MTA.

Languages: Perl, Bash, C, Pascal, BASIC, TCL, TK, Expect, HTML, Python.

Programs and Environments: EMC Celerra NX4 Storage, PogoLinux, Apache, Jakarta Tomcat, CFengine, Ansible, Vmware ESX 3 - 6.0, LDAP, SSSD, MS Active Directory, ISCSI, NFS, NIS, AFS, DNS and BIND, MySql, Postgres, OpenNMS, Nagios, Symantec BackupExec, Asterisk/Trixbox voip, CVS, git, ntp, ptp.

PROFESSIONAL EXPERIENCE

Unix System & Network Administrator

Confidential, Chicago, IL

Responsibilities:

Worked with development to design, install, and maintain, a high performance, low-latency, Linux environment for the company's proprietary trading platform. The systems were located in remote datacenters in New York, New Jersey, and Chicago.
The environment was a mixture of Windows, and Linux systems, all authenticating to the company's Active Directory Domain. The Linux systems utilized OpenLdap, Kerberos, and sssd to maintain single sign-on throughout the computing network.
I served as team lead to help train new employees to operate, troubleshoot, and maintain the company’s proprietary trading platform.

Unix System Team Lead Administrator

Confidential, Chicago, IL

Responsibilities:

Led a team of Unix administrators, and developed the documentation and processes necessary to coordinate the deployment and migration of legacy trading systems onto a standardized Linux environment.
Created PXE and kickstart build infrastructure, processes, and documentation that allowed the company to rapidly transition and scale into a development, staging, and production Linux environment of over 300 servers in under 9 months.
Installed, configured and maintained an Open Source monitoring server that allowed development teams to be alerted to performance and scaling issues before they resulted in problems with production trading applications.

Unix, Network & Security Administration

Confidential, Lisle, IL

Responsibilities:

Designed and supported the development and production trading systems environments comprising Solaris, Linux, Sybase, and Oracle environments to allow our engineers and development staff to create the internal trading applications for the trading staff.
Assembled and managed a team of administrators and support members that worked towards designing and implementing the systems that traders and operations members use to perform the financial trading, risk management, compliance, and reconciling trades for the hedge-fund.
Led project to re-architect and secure the Internet facing email, VPN, and partner access systems to provide for scalable, secure, and redundant access for remote users, partners, and offices.

System and Sales Engineer

Confidential, Santa Clara, CA

Responsibilities:

Utilized my teaching and presentation experience to provide instructional courses and guidance in designing and installing complex authentication systems to protect customer's business critical systems.
Worked with Sales and engineering staff to deploy, train technicians, and integrate certificate based authentication systems for customers and partners web based portals
Created platform to use Arcot's software for authenticating users to establish a reverse proxy for connecting users to websites without modification to a customer's existing infrastructure.

Manager, Technical Architecture & Security

Confidential

Responsibilities:

Provided strategic leadership of daily operations, technology architecture, team building and career development for staff as we expanded the company from 2000 employees to more than 8000 worldwide.
Managed security infrastructure, software deployment and security operations for sites throughout United States and Europe.
Created and maintained the systems which allowed employees and partners access to internal systems and resources securely.

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Unix System & Network Administrator Resume

Chicago, IL

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