Nicholas D'Ambrosio
Course Instructor at Mesa Community College- Claim this Profile
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Topline Score
Bio
Credentials
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F5 NGINX Fundamentals
F5Jun, 2023- Oct, 2024 -
Cisco Certified Network Professional / CCNP
CiscoJan, 2015- Oct, 2024 -
Cisco Certified Network Associate / CCNA Collaboration
CiscoJun, 2014- Oct, 2024 -
Cisco Certified Network Associate Wireless / CCNA Wireless
CiscoJun, 2012- Oct, 2024 -
Cisco Certified Network Associate / CCNA R&S
CiscoMay, 2010- Oct, 2024 -
Cisco Certified Entry Network Technician / CCENT
CiscoApr, 2009- Oct, 2024 -
Cisco Express Foundation for Field Engineers / CXFF
CiscoMar, 2012- Oct, 2024
Experience
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Mesa Community College
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Arizona, United States
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Course Instructor
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Sep 2022 - Present
Instructor at the local community college for CIS105 providing guidance and overview of computer technology, concepts, terminology, and the role of computers in business and society. Discussion of social and ethical issues related to computers. Use of word processing, spreadsheet, database, and presentation software. Includes uses of application software and the Internet for efficient and effective problem solving. Exploration of relevant emerging technologies. Instructor at the local community college for CIS105 providing guidance and overview of computer technology, concepts, terminology, and the role of computers in business and society. Discussion of social and ethical issues related to computers. Use of word processing, spreadsheet, database, and presentation software. Includes uses of application software and the Internet for efficient and effective problem solving. Exploration of relevant emerging technologies.
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PetSmart
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Phoenix, Arizona Area
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Senior Network Engineer
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Aug 2016 - Present
Leading the PetSmart on-prem data center refresh project, a critical step toward enabling future hybrid cloud initiatives. This project involves migrating hardware from traditional Cisco Nexus to an Arista spine-leaf fabric. Overseeing day-to-day operations to ensure uninterrupted network functionality across diverse business segments, including cloud, data center, distribution center, and storefront. Serving as the project lead engineer for the on-prem data center refresh initiative, responsible for project design, execution, and coordination, ensuring a smooth transition to the Arista infrastructure. Contributing expertise to PetSmart's SDWAN infrastructure by working with advanced technologies like Cisco iWAN, SilverPeak, and DMVPN, optimizing network performance. Leading the design and upgrade of PetSmart's data center internet stacks, including the deployment of a new Firepower Threat Defense environment, enhancing network security and reliability. Leveraging Python scripting to automate the migration of 1657 stores from a decentralized voice model to a centralized setup, streamlining the process and ensuring efficiency. Guiding the transition to a modern virtual platform in the upgrade of PetSmart's Network Access Control (NAC) system, enhancing network security and access control. Directing a comprehensive refresh of PetSmart's core network and DWDM optical infrastructure, increasing bandwidth and capabilities while enhancing network reliability. In my role as the project lead engineer, I take full ownership of end-to-end project management, ensuring a seamless transition and setting the stage for PetSmart's future hybrid cloud endeavors Show less
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SecureWorks
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Phoenix, Arizona Area
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Security Systems Sr. Advisor
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Dec 2015 - Sep 2016
Managed network security operations at a large healthcare organization, focusing on firewall infrastructure and F5 load balance proxies. Assisted in integrating SecureWorks services into the customer's environment. Oversaw maintenance of critical equipment, including Cisco ASA Next Generation 5585x series firewalls with SSP20 and SSP60 SourceFire Service modules, as well as FortiGate Firewalls of various series. Led centralized firewall maintenance using Cisco Security Manager (CSM) for ASA platform and FortiManager with FortiAnalyzer to manage FortiGate firewalls. Show less
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Artesyn Embedded Technologies
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Tempe, AZ
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Senior Network Operation Administrator
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Jun 2015 - Dec 2015
Monitored and maintained a global-wide network infrastructure, overseeing large factory operations, remote sites, and corporate policies related to voice, data, wireless, and security solutions. Operated and optimized a global monitoring solution for corporate applications, providing critical insights into trends and problematic latency while ensuring optimal user response times. Designed and deployed global wireless networks that supported guest access, employee BYOD policies, and corporate assets. Utilized Cisco Identity Services Engine (ISE) to secure access to corporate resources in branch offices and factory environments, enhancing network security and access control. Implemented global Intrusion Prevention Systems (IPS) on the network edge devices, actively monitoring threats and vulnerabilities. Employed positive signature matching to identify and respond to potential network attacks, bolstering network security. Show less
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Fidelity National Information Services
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Phoenix, Arizona Area
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Network System Analyst
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Oct 2013 - May 2015
Designed and integrated network strategies to bring medium to large banking infrastructures into the FIS hosted platform. These hosted services included Solarwinds monitoring, antivirus, Cisco IronPort and ScanSafe, redundant routing, virtualization, and hosted disaster recovery solutions for customers. Standardized and implemented WAN solutions, including ISP private connections such as bonded/single T1, MLSP, MOE, EVPL, EPL, EVP-LAN, and DIA with DMVPN overlay. Backup redundant connections comprised DIA and/or broadband connections, securely tied to the hosted environment using encrypted DMVPN and/or VPN tunnels. Achieved redundant routing through the use of BGP and EIGRP routing protocols. Implemented a two-router model with HSRP for circuit and hardware failure resilience. Employed iVRF and fVRF technology to segregate and secure customer networks from each other. Ensured the security of internet circuits using extended ACLs and VRFs for segmentation. Managed and maintained customer on-site and hosted context firewalls, following Cisco best practices. Deployed ingress and egress policies based on the Internet Assigned Numbers Authority (IANA) List. Implemented secure guest/vendor connections using DMZ zones and/or VRF segmentation with zone-based IOS firewalls. Designed and deployed wireless solutions for customers with varying budgets, utilizing autonomous, centralized controller, and Cisco Unified Access models. Autonomous deployments included the 2600 and 2700 series APs. Deployed the 2504 model wireless controller with HA controller and licensing for redundancy in many cases. Show less
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Premise One Inc.
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Gilbert, AZ
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Network Engineer
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May 2011 - Sep 2013
Designed and implemented core switch infrastructure to ensure optimal network performance. Configured access layer switches within the enterprise campus to enhance user connectivity. Managed stacked switch environments to improve network scalability and reliability. Deployed and managed firewalls for network security, including DMZ setup for external services and guest wireless access. Conducted ASA firewall code upgrades and optimized NAT and access translation methods. Established secure Site-to-Site (STS) VPN tunnels for remote communication. Implemented and managed VPN solutions, including AnyConnect VPN, for user authentication. Enhanced VPN security through SSL certificates. Conducted wireless surveys to ensure optimal wireless coverage in various environments. Configured Bring Your Own Device (BYOD) guest access for multi-controller environments. Deployed Unified Wireless solutions with location mapping and encryption. Installed Wireless Intrusion Prevention and Context-Aware Services for enhanced wireless security. Implemented redundant Unified Communications Call Managers on virtualization platforms. Configured InformaCast IP paging integration with Call Manager and call recording services using CallAware services for emergency response call capturing. Show less
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Web Systems Engineer
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Jun 2010 - May 2011
Managed and maintained a complex infrastructure consisting of 50+ production Microsoft IIS web and SQL database server pairs, ensuring high availability and optimal performance. Deployed Microsoft web and SQL servers within a VMware virtual data center environment, configuring them to support proprietary software solutions tailored for insurance companies across the United States and Canada. Took charge of the installation of network infrastructure components and Cisco ASA firewalls equipped to enhancing network security and performance. Vigilantly monitored network traffic to detect and respond to network anomalies, including network and DDoS attacks, minimizing system vulnerabilities and ensuring data integrity. Deployed Trend Micro corporate anti-virus software across the server farm and client environment, bolstering cybersecurity measures to protect sensitive data. Managed and implemented third-party SSL certificates for customer websites, enhancing security and trust for online transactions and communications. Secured the domain environment by configuring Group Policy Object (GPO) policies in alignment with baseline benchmarks provided by the Center for Internet Security (CIS), ensuring compliance with industry best practices and security standards. Show less
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Network Administrator
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Sep 2008 - Jun 2010
Managed and maintained internal corporate services for development and operational departments, ensuring seamless access to critical resources. Monitored and troubleshooted corporate network and system infrastructure, including Microsoft Exchange, SQL database, and Linux data center systems, to proactively identify and resolve issues, minimizing downtime and disruptions. Deployed and maintained a voice-over-IP (VoIP) system using open-source IP-PBX Asterisk, successfully integrating it with Cisco Call Manager Express to enhance communication capabilities within the organization. Orchestrated the migration of the Asterisk voice system from PSTN (Public Switched Telephone Network) to SIP (Session Initiation Protocol), ensuring reliable telephony services. Two PSTN lines were kept active in the gateway for 911 emergency dialing compliance. Managed remote access and client VPN tunnels, providing secure and efficient connectivity options for remote development teams, enhancing productivity and collaboration. Show less
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PHP Programmer/DBA Administrator
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Dec 2007 - Jun 2008
Performed extensive database queries on enterprise customer contact lists to support marketing initiatives, facilitating legitimate email blasts for targeted outreach campaigns. Built and maintained database replication across Linux OS servers, ensuring fault tolerance and robust backup solutions for critical data. Successfully restored database backups and executed data migrations onto new server hardware, contributing to system reliability and performance improvements. Took charge of implementing and maintaining internal LAMP (Linux, Apache, MySQL, PHP) systems, supporting programming and bug reporting services for the organization. Developed PHP-coded web-based applications featuring user access controls for employees, enhancing functionality and security for internal processes. Created versatile front-end and back-end web-based applications using PHP programming code, encompassing secure file transfer, database manipulation, and data tracking systems to streamline operations. Show less
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Systems Specialist
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Nov 2005 - Sep 2007
Managed and maintained a substantial fleet of 500+ end-user workstations, including remote access users, ensuring their smooth operation and optimal performance. Maintained and oversaw corporate web services and applications, both for internal and external use, to support the organization's digital presence and enhance communication. Utilized strong communication skills to provide essential support for the switched network, deploying voice and data switches to facilitate efficient data flow and communication within the company. Conducted thorough data and voice cabling connection testing, ensuring the reliability and performance of data and patch panel circuitry. Designed and maintained corporate web services, applications, and MySQL database systems, catering to internet-based web marketing initiatives and internal intranet services for employees. This included ensuring data security, accessibility, and functionality. Show less
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A DYE DESIGN
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Phoenix, Arizona Area
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CAD Designer
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Aug 2004 - Jan 2005
Assisted in the creation of landscape, hardscape, and irrigation construction documents for prominent projects, including Wal-Mart shopping centers and the Phoenix Light Rail, ensuring accurate and detailed designs that met project requirements and regulatory standards. Played a crucial role in training engineers on AutoCAD systems and procedures, contributing to the team's productivity and efficiency in project execution. Conducted research on 3D development tools and software, identifying and evaluating solutions for current and future projects, enabling the adoption of advanced technologies and enhancing design capabilities. Show less
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3D Systems
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Valencia, California
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Internship
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Sep 2002 - Nov 2002
Utilized company-designed software to create and prepare client models for fabrication in stereolithography machines, ensuring accurate and high-quality model production. Maintained and prepared stereolithography machines for new models, including building new parts for the machines as needed to ensure smooth operation. Took responsibility for curing, preparing, and shipping client models, ensuring they met quality standards and were delivered promptly. Utilized company-designed software to create and prepare client models for fabrication in stereolithography machines, ensuring accurate and high-quality model production. Maintained and prepared stereolithography machines for new models, including building new parts for the machines as needed to ensure smooth operation. Took responsibility for curing, preparing, and shipping client models, ensuring they met quality standards and were delivered promptly.
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Education
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2005 - 2011
Mesa Community College
Network Administration
Community
