Stephen Flanagan
Kinderhook,NY
Summary
Accomplished Communication Engineer with over 20 years of expertise in designing, supporting, and configuring Corporate and cloud environments using Cisco, Extreme, and Juniper networking equipment. Proficient in managing large-scale Cisco and Extreme networks in data center settings, with extensive experience in Cisco Collaboration tools, including UCM, Unity, and IM&P. Certified in Extreme Fabric, Switching, Control and Site Engine, and skilled in curriculum development as an Extreme Certified trainer.
Overview
27
27
years of professional experience
4
4
Certifications
Work History
Extreme Networks Certified Instructor
ArchiTech Academy
04.2024 - 12.2025
- Instruct students in Extreme Networks’ technology. As it pertains to the Extreme Certified Professional Certification in the following areas of study:
- Extreme Fabric
- Extreme Switching
- Extreme Site Engine
- Extreme Control (NAC)
- Review / Collaborate on content of curriculum material with Extreme Networks Technical Curriculum Developers
- Proctor / Assess student’s abilities in Lab environment for the Extreme Networks Professional certification.
Sr. Network Engineer
Harbor Networks
04.2022 - 04.2024
- Enhanced network performance by reviewing topology and configuration details.
- Guided junior engineers in new technology installations and best practices.
- Trained junior engineers on networking technologies and troubleshooting techniques.
- Served as escalation point for junior engineers during complex network issues.
- Defined and enforced best practices for network infrastructure documentation.
- Collaborated with third-party support and IT engineers for network optimization.
UC Engineer
ConvergeOne
01.2021 - 04.2022
- Enhanced network performance by validating client environments and reviewing configurations.
- Supported UC system installations and provided ongoing technical assistance.
- Established and enforced best practice standards for network management.
- Resolved network outages and troubleshooting issues during system upgrades.
- Collaborated with IT engineers and third-party resources for network optimization.
- Delivered tailored training sessions for clients with diverse IT knowledge levels.
UC Engineer
Carousel Industries
01.2015 - 01.2021
- Enhanced network design through customer collaboration on technical documentation.
- Configured and troubleshot Cisco Call Manager and Unity voicemail systems effectively.
- Developed training materials to upskill collaboration engineers in DevNet programming.
- Provided on-the-job training to new engineers for skill enhancement.
Data Engineer
Carousel Industries
01.2015 - 01.2021
- Developed technical documentation to enhance data network design for installations.
- Executed installations of data networks using Juniper, Cisco, and other vendors.
- Configured network devices including switches, routers, and firewalls efficiently.
- Provided Level 3 troubleshooting support for complex NOC ticket resolutions.
- Created comprehensive network documentation utilizing Microsoft Visio and Lucidchart.
- Collaborated with subcontractors to troubleshoot and resolve customer network issues.
Network Engineer
Nfrastructure ITS(DCN)
01.2014 - 01.2015
- Delivered custom network solutions through collaboration with Professional Services team.
- Configured and supported multiple NYS networks using Juniper and Cisco firewalls.
- Executed installation and troubleshooting of Cisco switches and related network equipment.
- Educated team members on network procedures and compliance policies effectively.
- Enhanced security by troubleshooting and upgrading McAfee IPS systems.
- Documented network designs with Visio for clarity and future reference.
SR Network Engineer / Networking Team Lead
Xand Operations LLC
01.2011 - 01.2014
- As the senior network engineer / networking team lead my duties included but were not limited to the following:
- People management including interviewing, hiring, dismissal, vacation approval and carrying out annual reviews for staff.
- Act as the domain expert in delivering services from the company’s product catalog and assist in developing new services.
- Provided assistance to other teams in supporting the company’s infrastructure.
- Implemented technical standards across the organization as well as plans to audit and revise infrastructure.
- Acted as the final point of technical escalation for on call.
- Planed staff on call rotations and escalation.
- Contributed to management meetings and business strategy.
- Attendance of regular team meetings within and across site.
- Work to support, test, install, document and troubleshoot networking hardware as it pertains to customer environments.
- Work to document via networking diagrams and other detailed information to help other team members develop.
- Travel to the other data centers to help out the PA or MA regions.
- Interface with customers by suggesting design refinements or troubleshooting customer installs.
Sr. Platform Engineer
Nectar Services Corp.
01.2004 - 01.2010
- Responsible for building and supporting Hosted telephony platform.
- CPE communications over T1/T3/Ethernet.
- Network Design, configuration and monitoring of Avaya Hosted multi-tenant PBX.
- Built 10 gig EAPS ring around NY.
- BGP peering with upstream SIP trunk providers utilizing Juniper routers and Extremenetworks switches and Juniper (ScreenOS) firewalls.
- Install of servers into colocation space.
- Level 3 support of platform issues.
Network Engineer
Xand Operations LLC
01.1999 - 01.2004
- T1 router installation for CLEC.
- Support ISP network utilizing BayNetworks L3 switches and Cisco 7507 routers.
- Migration of BayNetworks L3 switches to Cisco 6509 / 4000 switches in Colocation environment.
- Documentation of network resources and customer networks in Colocation environment.
- On call support 24x7x365.
Education
ECP Fabric, ECP Switching, ECP ExtremeControl, ECP Site Engine
Skills
- Online instruction
- Teamwork and collaboration
- Problem-solving
- Network configuration
- Network Security
- LAN switching technologies
- Layer-2/3 protocols
- IP addressing and subnetting
- OSPF routing
- Network Troubleshooting Abilities
- Strong troubleshooting skills
Websites
Certification
ECP Fabric
ECP Switching
ECP Site Engine
ECP ExtremeControl
CCNP Route and Switch 2020
Languages
Portuguese
Limited Working
English
Native or Bilingual
Irish
Limited Working
Timeline
Extreme Networks Certified Instructor
ArchiTech Academy
04.2024 - 12.2025
Sr. Network Engineer
Harbor Networks
04.2022 - 04.2024
UC Engineer
ConvergeOne
01.2021 - 04.2022
UC Engineer
Carousel Industries
01.2015 - 01.2021
Data Engineer
Carousel Industries
01.2015 - 01.2021
Network Engineer
Nfrastructure ITS(DCN)
01.2014 - 01.2015
SR Network Engineer / Networking Team Lead
Xand Operations LLC
01.2011 - 01.2014
Sr. Platform Engineer
Nectar Services Corp.
01.2004 - 01.2010
Network Engineer
Xand Operations LLC
01.1999 - 01.2004
ECP Fabric, ECP Switching, ECP ExtremeControl, ECP Site Engine
Interests
- Seasoned BJJ Brazilian Jiu Jitsu competitor
- Brazilian Jiu Jitsu Instructor
- Group fitness coach
- Motorcycles
- Poetry