Information Security, System Engineer, Security, Oracle

Profile

A Principal Security/Network/Systems Consultant with significant expertise.

Experience includes the architecture, design, and implementation of

infrastructure services for some of the largest ISPs, universities,

colleges, and financial institutions in the United States. Well versed in

Security Technologies, Internet Messaging Technologies, and Directory

Services. Excellent troubleshooting skills. Participate in establishing

strategic plans and objectives while forecasting their long-range

implications. Proven track record of working well with teams under

challenging circumstances. Self directed to achieve project goals via

project deliverables that achieve optimal outcomes.

Certifications / Clearances

GIAC Certified Firewall Analyst (GCFW)

Active US Government Clearance

CompTIA Security+ Certification

LinkedIn Profile: www.linkedin.com/in/chadmstewart/

Skills

Including but not limited to: Firewalls, Load Balancers, CheckPoint,

Gauntlet, Snort. Skilled with many operating systems including OpenBSD,

FreeBSD, Solaris, Mac OS X, OpenVMS, Linux, and Windows (98 NT 2000 XP),

shell scripting, PERL, Bind, Apache, tcpdump, Snort, Ethereal, Wireshark

ClamAV, Squid, TCP/IP, Root Level DNS, Firewalls, VPNs, PGP, PKI, DHCP,

IMAP, SMTP, MIME, LDAP, SSH, X.400, X.500, S/MIME, VMWare ESX, Postfix,

Oracle's Enterprise Messaging Server (formerly iPlanet Sun ONE), Sendmail,

Brightmail, Spamassassin, Dspam. High Availability and Clustering

technologies including Sun Cluster (SC) and Veritas Cluster Server (VCS).

BUSINESS Experience

Balius, Inc., Fort Worth, Texas

October 2004-

Present

President/CEO of Balius Inc. providing information security, messaging, and

directory consulting services. Our clients range from Fortune 100

companies to small businesses. Projects included: consulting services for

mail and directory systems that supported millions of users scattered

around the globe, assisting enterprises that needed recommendations and

assistance with the installation, configuration, and maintenance of

firewalls, IDS/IPS, routers, and related technologies. Customers include:

Verizon Communications, Verizon Wireless, Oracle, Sun Microsystems, Duke

University, US Army (AKO/DKO), Connecticut State University, Sigma

Solutions, Piper Schultz LLP, Northrop Grumman, Chapman and Cutler, LLP.

Client Engagements:

Internet Service Provider: September 2012 - December 2012 - my client had

an immediate need for someone with my skill set to start assessing their

new infrastructure immediately. They had recently deployed a new mail

system and they were having issues with features but more importantly

stability and performance. I worked with them and the vendor to find and

and resolve the issues they were experiencing.

Legal Firm: September 2012 - March 2012 - I was brought in to update their

systems. The systems had been working nicely for 2+ years but they decided

it was time to patch/upgrade them. I was responsible for updating the

operating system, Sun Cluster, and all of the applications and middleware

in use: Oracle Messaging Server, MTA, POP/IMAP Proxy, Convergence/Webmail,

Instant Messaging, Application Server/Glassfish, Oracle Webserver, Calendar

Server, LDAP Servers. The client had a handful of servers in production and

provided me with 2 systems for testing.

Global wireless carrier: March 2011 - March 2012 Part of a team supporting

a messaging infrastructure used by millions of mobile devices. I handled

day to day operations, working with vendors to resolve issues, planned and

implemented updates to the systems.

Northrop Grumman, Inc., Fort Belvoir, Virginia

January 2009-March 2011

AKO/DKO Mail Engineer, providing information security, messaging, and

directory consulting services. A member of a small engineering team

responsible for the AKO/DKO mail system infrastructure which included

software from Oracle and Good Mobile Messaging, and VMware. Deploy and

support new services until they are handed over to the day to day

operations team. Work with various vendors to integrate their products and

services to AKO/DKO, including S/MIME support in the various clients in

use. Ensuring compliance with DoD standards (FIPS) and related encryption

technologies and performing remediation after security audits. This

included both NIPR and SIPR networks and Disaster Recovery sites. Tasked

with writing scripts to migrate users from the various Microsoft Exchange

sites to AKO/DKO mail services.

Sun Microsystems, Menlo Park, California

May 2000-October 2005

Project Engineer responsible for the architecture, design, and

implementation of infrastructure services for Sun customers. Assisted

customers with development, testing, migrations, and performance

management. Customers included: Comcast, Cablevision, US Army (AKO), Bank

of America, Washington Mutual, Ithaca College, and New York University,

Verizon. AIG, Eastlink, Medical University of North Carolina, Schlumberger.

Client Engagements:

Fortune 100 Multi-National Manufacturing Company: 2005 Worked on the

architecture and design of a mail infrastructure for 80,000 global

mailboxes based on the Sun ONE Messaging Server, to replace their existing

Microsoft Exchange Servers.

Cablevision: 2000-2001 Offering of high-speed Internet, digital cable TV

and digital voice service resulted in rapid growth. It became necessary to

replace the existing Sendmail email infrastructure. Designed and

implemented architecture to meet the customers strategic and tactical

requirements, including a migration plan allowing for minimal outage for

500,000 users. Lead the migration effort, experiencing only a 3-hour

planned outage during the overnight.

New York University 2003 Thirteen schools, colleges, and divisions at five

major metropolitan centers. Assisted the University's team in preparing

for a migration from Netscape Messaging Server to the Sun ONE Messaging

Server. Worked with the University's Systems Administrators to install and

configure the Sun ONE Messaging Server in a symmetric Sun Cluster

environment to support approximately 200,000 mailboxes.

Bank of America: 2004 Operations in 29 states, The District of Columbia,

and 31 foreign countries. Assisted the customer in converting their legacy

Innosoft PMDF systems to The Sun ONE Messaging Server to handle nearly 1

million messages per day. Reviewed the configuration and helped tighten

the security of the application, made performance improvement suggestions,

and assisted in fine tuning a separate Sun ONE Messaging Server

installation that supports over 1 million online banking customer's

mailboxes.

US Department of Defense (US Army): 2001,2003,2005 Assisted in stabilizing

the legacy Netscape Messaging Server installation while planning a

migration to Sun ONE Messaging Server. Migrated their single NMS system to

Sun ONE Messaging Server and assisted in improving the overall Sun ONE

infrastructure, including Messaging and Directory. Subsequently returned

to help implement a Disaster Recovery site that included supporting the

messaging infrastructure for 1.8 million mailboxes, and also lead an

upgrade effort to the messaging infrastructure.

Comcast: 2003 21.4 million cable customers, 7.7 million high-speed Internet

customers, and 1.2 million voice customers. Member of a Sun Professional

Services team that audited the clients Sun ONE infrastructure, supporting

over 2 million mailboxes, and assisted in implementing recommendations for

improvement. Designed and implemented a mail server template control

process to track changes to the messaging configuration. Assisted the

company in ensuring the configuration was stable, consistent, and tailored

for optimum performance in their environment.

Superior Consultants Holdings Corp, Detroit, Michigan

November 1999-April 2000

As a Consultant, assisted a client with a Novell GroupWise messaging

migration.

Electronic Data Systems, Rochester, New York

June 1995-October 1999

Internet Services/Security Team

This team was charged with the architecture, installation, configuration,

security, and maintenance of the perimeter architecture and services,

firewalls and related services throughout Xerox. Individual

responsibilities included the design and setup of VPNs, Xtranet, Remote

Access, root level DNS, HTTP Proxies, and other SMTP relays. Products

supported included Check Point Software Technologies Firewall-1 and Network

Associates Gauntlet Firewall. Responsible for many installations of

Solaris both inside the DMZ and on the internal network.

Infrastructure Specialist

Initially, a member of a small team charged with engineering a migration

plan from Novell's Global MHS to Microsoft Exchange, for 80,000 users,

while maintaining support for the many legacy email systems Xerox had in

place (XNS, Sendmail, cc:Mail, Banyon Vines, Lotus Notes). Designed,

implemented and administered a global mail hub infrastructure at Xerox

using Internet standards as the foundation. This was based on Innosoft's

PMDF mail switch product using an OpenVMS implementation. The mail hub was

designed to allow seamless communication between the many legacy messaging

systems within the customers environment as well as the Internet.

Datamax Services, Fairport, New York

January 1995 - June 1995

Consultant on a 6-month contract at Xerox Business Services (XBS) to

conduct training classes at 32 XBS offices.

References available upon request

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