Senior Network Administrator

Company DescriptionWork with Us. Change the World.At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the worldâs most complex challenges and build legacies for future generations.There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.We're one global team driven by our common purpose to deliver a better world. Join us.Job DescriptionNetwork AdministratorAECOM is seeking a Network Administrator to support the Florida Department of Transportation (FDOT) District Six SunGuide Transportation Management Center (TMC) in Miami, Florida. The TMC operates 24 hours a day, 7 days a week, providing traffic management services throughout Miami-Dade and Monroe Counties. The successful operation of these services depends on a highly reliable, secure, and resilient telecommunications and IT network infrastructure. The ideal candidate will possess expert-level knowledge of Layers 1, 2, and 3 network engineering with extensive experience in enterprise networking, telecommunications, network security, and troubleshooting. Candidate must be comfortable working in a mission-critical, high-availability environment where network reliability, cybersecurity, and rapid incident resolution are essential. This is a full-time, on-site position reporting to the IT Manager. Network Administration and EngineeringConfigure, administer, maintain, and troubleshoot enterprise network infrastructure, including Extreme Networks Layer 2 and Layer 3 switches and Sophos firewallsProvide expert-level troubleshooting of Layers 1, 2, and 3 network connectivity and performance issuesConfigure and maintain network routing, VLANs, redundancy, and other network services to support continuous TMC operationsSupport network high-availability configurations, redundancy, failover, and disaster recovery capabilitiesMonitor network performance, availability, and security using network management platforms, including SolarWindsAssist with network architecture planning, infrastructure upgrades, hardware replacements, and technology modernization initiativesMaintain accurate network diagrams, equipment configurations, and technical documentationTelecommunications and ITS IntegrationTroubleshoot telecommunications infrastructure utilizing fiber-optic cable, Ethernet, and wireless technologiesSupport the integration, configuration, and troubleshooting of ITS field devicesTroubleshoot communication failures involving fiber-optic infrastructure, network switches, wireless systems, and ITS field devicesSupport network connectivity between the TMC, ITS field locations, external agencies, and third-party systemsConfigure, maintain, and troubleshoot unicast, multicast, and anycast network communications, including video streaming and distributionAssist with integrating new ITS technologies and telecommunications systems into the TMC networkCybersecurity and Network ProtectionConfigure, maintain, and troubleshoot Sophos firewall policies, VPN tunnels, and network security configurationsSupport cybersecurity initiatives, including vulnerability remediation, security updates, network segmentation, and infrastructure hardeningNetwork security assessments and the implementation of cybersecurity best practicesSupport secure connectivity between the TMC, external agencies, contractors, and other authorized network partnersNetwork configuration changes follow established security procedures, documentation requirements, and change management practicesSystems Support and Technical CoordinationAssist with troubleshooting MS Windows Server environments and MS 365 applications including OutlookCoordinate with internal IT personnel, FDOT representatives, vendors, and contractors to resolve technical issuesPlan and support the implementation and integration of new network technologies and infrastructure improvementsParticipate in meetings for networking, telecommunications, cybersecurity, and ITS operationsProvide technical assistance during network outages and other critical operational eventsQualificationsMinimum Technical Qualifications:Bachelor's degree in Computer Engineering, Computer Science, Information Technology, Telecommunications, or related disciplineEight years of experience in enterprise networking, telecommunications, network engineering, or network administration or demonstrated equivalency of experience and/or educationExperience at an expert-level understanding of Layers 1, 2, and 3 network technologiesExperience in configuring, administering, and troubleshooting enterprise routing and switching infrastructureExperience supporting complex, high-availability network environmentsExperienced and understanding in network redundancy, routing protocols, VLAN configurations, and network troubleshooting methodologiesDemonstrated experience and proficiency or working knowledge in the following areas:TCP/IP, Ethernet, VLANs, Layer 2/Layer 3 switching, routing, network redundancy, and troubleshootingExtreme Networks switches and enterprise networking technologiesSophos firewalls, firewall policies, VPN tunnels, network segmentation, and cybersecurity best practicesFiber-optic communications, wireless networking, Ethernet connectivity, and telecommunications troubleshootingUnicast, multicast, and anycast networking, including IP video distribution and streamingSolarWinds and related network monitoring and diagnostic toolsMS Windows Server, MS 365, Outlook, and related MS applicationsNetwork diagrams, equipment configurations, troubleshooting procedures, and change management documentationPossess or obtain the following certifications within 12 months of employment, subject to applicable training availability and certification eligibility.Extreme Certified Associate (ECA)Extreme Networks Certified Administrator (ENCA) - applicable switching technologyExtreme Certified Professional (ECP) - Extreme SwitchingSophos Firewall Certified AdministratorSophos Firewall Certified Engineer (ET80), where eligible through the Sophos partner certification programEquivalent or successor certifications may be considered with IT Manager approvalPreferred:Experience supporting FDOT TMCs or comparable traffic operationsExperience and knowledge of FDOT District Six ITS network architecture and telecommunications infrastructureExperience with SunGuide ATMSFamiliarity with Operations Task ManagerExperience integrating and troubleshooting ITS field devicesExperience supporting large-scale fiber-optic networks and geographically distributed network infrastructureExperience coordinating network integration projects with multiple vendors, contractors, and government agenciesAdditional InformationRelocation is not an option for this position. Sponsorship for US employment authorization is not available now or in the future for this positionProfessional CompetenciesStrong analytical, technical troubleshooting, and problem-solving skillsInvestigate complex network issues and develop effective solutionsRemain focused and professional during network outages and emergenciesOrganizational skills and attention to technical documentationWork effectively under supervision and part of an IT teamExcellent written and verbal skillsCommunicate technical issues to technical and nontechnical personnelWillingness and ability to learn new technologies, tools, and systemsProfessional demeanor with client, employees, contractors, vendors, and external agenciesCommitment to network reliability, cybersecurity, operational continuity, and customer serviceAt AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.About AECOMAECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. What makes AECOM a great place to workYou will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity. As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines. SummaryType: Full-timeFunction: Information TechnologyExperience level: Mid-Senior LevelIndustry: Construction