Dennis Allen Email & Phone Number

St. Louis, Mo, Us

Clayton, Mo, Us

Clayton, Mo, Us

St Charles, Missouri, Us

•Provide comprehensive on-going leadership and support for enterprise IT infrastructures and information security frameworks for 22 locations across the US and Mexico.•Leverage industry expertise to deliver technical direction and insight to executive leadership.•Recruit, manage and mentor six high-performing team members, consisting of information security, networks, and systems engineers.•Conduct information security gap analysis to identify vulnerabilities and risks on the NIST SP 800-171 cybersecurity framework.•Ensure cybersecurity compliance with all US government regulations, including DFARS, EAR, and ITAR.•Drive the design, configuration, and maintenance of global voice and data networks (LAN, WAN, MPLS, SIP).•Oversee data centers and colocation facilities to facilitate seamless and secure daily operations, while also building and managing information and physical security systems. •Utilize ITIL best practices to create, implement, and manage the change management process. •Spearhead efforts to analyze, introduce, and continually improve enterprise-wide SIEM solution, boosting network security and improving regulatory compliance by 15%.•Technologies: Windows Server, Active Directory, Office 365, DHCP, DNS, Cisco ASA firewalls, routers, and switches, Cisco Unified Communications Systems, VMware – ESXi 5.5 and 6.5, Tenable Nessus, Varonis

St. Louis, Missouri, Us

•Oversaw the enterprise IT infrastructure for 10 domestic and 2 international locations, while simultaneously managing security practices, voice and data networks, and systems consolidations from M&A activity.•Supervised a team of six technical analysts across 4 locations, ensuring they adhered to all corporate procedures and industry best practices while managing infrastructure, network, and help desk functions. •Defined and developed disaster recovery plans, conducting assessment and providing high-level recommendations on future technology needs and priorities.•Offered strategic insights while setting the course for future infrastructure direction and improvements, while working within the ITIL framework to develop processes and procedures that enhance productivity 30%.•Fostered and nurtured lasting relationships with 10 key vendors, manufacturers, and consultants. •Technologies: Windows Server, Active Directory, Exchange, DHCP, DNS, Cisco ASA firewalls, routers, and switches, Cisco Unified Communications Systems, VMware – ESXi 5.5, EMC VNX SAN, VMware, Commvault, ServiceNow

St. Louis, Missouri, Us

•Managed information and physical security systems and their associated controls, while leading three technical analysts to deliver outstanding infrastructure, network, and help desk functional support.•Spearheaded the planning and implementation of data center and infrastructure redesign projects increasing system-wide uptime from 97% to 99.9%.•Organized and facilitated the relocation of a company-wide data center and the addition of a secondary data center, in addition to handling all IT aspects of the corporate headquarter office build-out and relocation. •Drafted and executed continuity and recovery management plans while addressing security concerns and business continuity in a professional manner. •Evaluated new technologies and presented strategic systems guidance to senior management.•Developed cybersecurity strategies that minimized the risk of user-related security breaches and improved detection capabilities, as well as metrics and communication plans that received praise from senior executives.•Technologies: Windows Server 2008 R2, Windows Server 2012, Active Directory, DHCP, DNS, VMware – ESXi 4.1, 5.1, and 5.5, Cisco ASA firewalls, routers, and switches, Cisco Unified Communications Systems, EMC VNX SAN Administration, EqualLogic SAN

Plymouth, Mn, Us

•Initiated the planning and execution of a company-wide data center migration from Springfield, IL to Las Vegas, NV, and successfully transitioned the infrastructure from 100% physical servers to 75% virtualized.•Collaborated with senior and executive management to devise strategic technical and functional improvements that decreased system downtime 3%. •Established and maintained the $10 million IT budget, in addition to directly managing the daily activities of four technical analysts. •Analyzed and purchased new products from vendor representatives. •Technologies: VMware – ESXi 4.1, VMware View for virtual desktops, Cisco ASA, Pix firewalls, routers, and switches, Windows Server 2003, Windows Server 2008, Active Directory, DHCP, WINS, DNS, Microsoft Exchange Server 2003 and Exchange 2010 migration and administration, Storage – EMC Clariion, EMC Symmetrix VMAX

Springfield, Illinois, Us

•Led the rollout of VMware View across the organization, integrating WYSE thin clients to the virtual desktops of 400 end-users.•Converted the infrastructure from 100% physical servers to 90% virtualized. •Produced business-focused architecture and solution design with technologies including virtualization/cloud computing, web servers, web infrastructure and applications, storage, content management, networking, and security•Served as Project Manager for all IT functions, ensuring processes were completed on time and adhered to all strict project requirements. •Technologies: Cisco ASA, Pix firewalls, routers, and switches, Windows Server 2000, Windows Server 2003, Active Directory, DHCP, WINS, DNS, Microsoft Exchange Server 2007, RSA enVision and SecureID, Storage – EMC Clariion, EMC Centera, VMware, ESX Servers, Virtual Private Networks, Altiris Software Delivery and Application Management, Antivirus Management, Proxy Servers, Red Hat Enterprise Linux, Network and systems performance monitoring and testing, Banking and financial software

•Coordinated a team of five technical analysts and carried out testing, monitoring, and analysis for hundreds of existing systems and approximately 50 new implementations. •Executed numerous IT projects, working with $50 million budgets and within the PMBOK project management life cycle to assess and plan for ongoing testing and performance monitoring. •Initiated analysis and purchase of a wide variety of products, including servers, storage, network hardware, and security solutions.•Technologies: Windows Server, UNIX, Linux, Cisco and Juniper network solutions

Hanover, Md, Us

•Managed a variety of Cisco router and switch configurations, in addition to repairing PCs, troubleshooting and resolving escalated technical issues, and a myriad of other help desk responsibilities.•Deployed 500 personal computers.•Undertook server and workstation hardware upgrades and implemented software builds/configurations. •Delivered exceptional customer service while supporting more than 3,000 end-users.•Technologies: Windows Server, Norton Ghost, Cisco routers and switches

Master Of Business Administration

Bachelor Of Science, Network And Communications Management