Senior Security Administrator Levels 3-5: Network & Firewalls
Metropolitan Transportation Authority (MTA)
The Metropolitan Transportation Authority (MTA) is looking for a Security Administrator to manage cybersecurity for their IT systems in New York. This role includes administering access, managing firewalls, and resolving security issues. It requires strong experience in information security systems, troubleshooting, and communication skills. This position offers varying levels from 3 to 5, each with increased responsibility and experience requirements. The MTA values a diverse workforce and provides opportunities for professional growth. #J-18808-Ljbffr Metropolitan Transportation Authority (MTA)
$69.09k - $98.7k
Description Job Title: Security Administrator Levels 3 - 5 Salary Range: Level 3 - $69... ...'s largest transportation network, serving a population of 1... ...platforms and managing various firewall and network technologies... .... Guide less senior technicians and staff in the...NetworkLevel 3Work at officeRemote work- ...candidate to administer access to the railroad's computer systems, ensuring effective management of firewall and network technologies. The role involves oversight of security procedures and resolving complex security problems. This position is essential for maintaining...SeniorNetwork
$144k - $176k
...meet availability, security, and performance... .... Provide Level 2/3 operational support... .../Entra ID, Azure networking, Microsoft 365 services... ...certifications. 5 to 10 years of... ...Enterprise Linux administration experience in cloud... ..., TCP/IP, VPNs, firewalls). Experience...SeniorNetworkLevel 3Permanent employmentVisa sponsorshipWork visa$110k - $140k
...Risk & Information Security talent for... ...re looking for a senior-level IT engineer who... ...optimise complex networks, including firewalls, routing, switching... ..., owning Level 3 escalations from... ...Must Have 5+ years working... ...DNS Microsoft 365 administration, security, and troubleshooting...SeniorNetworkLevel 3Full timeRemote workRelocation packageFlexible hours$98.4k - $147.6k
...and Responsibilities The Senior Network Engineer role focuses on... .... Collaborate with Level 2 and Level 3 teams to resolve complex routing, switching, firewall, and connectivity issues... ...in IP networking and IP security design and implementation (5-7 years preferred). Hands...SeniorNetworkLevel 3- ...coordinate with the second level team to resolve the... ...all printers, support network configuration, driver installation... ...Coordinate with Level 3 support groups and... ...Policy, Networking and Firewall Providing 2nd line... ...including users, senior management, IT teams, project...SeniorNetworkLevel 3Local areaImmediate startRemote work
$120k - $150k
...Health Care is a growing community healthcare network that provides high quality, compassionate,... ...for all patients and has been designated ’Level 3 Patient Centered Medical Home’ by the... ..., Finance, Economics, or related field. 3–5 years of experience in healthcare analytics...SeniorNetworkLevel 3- ...Server (All Supported OS) Address Network, VOIP, Internet Issues,... ...VMware, and Group Policy Provide Level 3 support for backups, antivirus... ...Bachelor’s Degree and/or 3-5 years experience in IT industry... ...certification (A+, MCP, Network+, Security+ MCP, ITIL Foundations) Speak...SeniorNetworkLevel 3Work at office
$120k - $130k
Senior Firewall Administrator (Future Opportunity) AGE Solutions is... ...and ensure a secure future. We are seeking... ...industry-standard network environments, firewall... .... At least 5 years of relevant... ...bonuses. 401(k) with 3% match. Company-paid... ...Seniority level: Not Applicable Employment...SeniorNetworkFull timeContract workRemote work$22 - $95 per hour
...Now, we're looking for a Senior Creative Lead freelancer... ...Solid Track Record: 4-5 years in the trenches,... ...Studio Proficiency: Over 3+ years planning/running... ...experience, and skills level ($22-$95) Level 1 - $22... ...help us succeed. Join Our Network! Stay connected with us...SeniorNetworkLevel 3Freelance- ...AppGate AppGate secures and protects an... ...performance Zero Trust Network Access (ZTNA)... ...Engineer (Senior / Staff / Principal... ...at the Senior level (hands-on engineer... ...team scales to 5–7 engineers).... .../ Purdue Level 3, with session brokering... ...(TCP/IP, TLS, firewalls) and identity (...SeniorNetworkLevel 3Full timeRemote workWorldwide
$83.4k - $125.2k
...filled at a higher level based on the qualifications... ...Engineer (Level 3): Bachelor's degree in STEM with 5 years’ relevant... ...Information security clearance Active CompTIA... ..., or systems administration Experience with configuration... ..., storage, and networking Experience with...SeniorNetworkLevel 3Relocation packageShift work$150k - $160k
...Senior Major Account Executive - NYC We invite you to step... ...difference. Our cloud-first networking and security solutions already protect 7... ...What You Bring At least 5 years of successful... ...acquisition References from C-levels in at least 3 accounts where you have successfully...SeniorNetworkLevel 3Local areaFlexible hoursNight shift- ...Description TITLE: Senior Intune Mobility... ...management and level 3 support. This... ...Implement system security requirements... ...accepted system administration methodologies, tools... ...Understanding of networking, firewalls, and common datacenter... .... Minimum of 5 years of...SeniorNetworkLevel 3Night shiftWeekend work
- A technology firm seeks a Senior Network Security Engineer to manage and maintain network security systems. The role involves troubleshooting... ...years of relevant experience, particularly with Palo Alto firewalls and strong networking skills. This position is fully remote...SeniorNetworkRemote job
- A leading renewable energy firm is seeking a Firewall Engineer to design and implement secure network infrastructures for their Remote Operations Center. The role focuses on managing network security for renewable energy operations such as wind, solar, and battery storage...SeniorNetworkRemote job
- ...IT solutions provider in New York is seeking a highly skilled Network Architect to guide technical teams and manage network projects.... ...The successful candidate will provide expert design for VPNs and firewalls, ensuring efficiency in network operations. Required...SeniorNetworkContract work
- ...Pennsylvania State Employees Credit Union is seeking a Network Administrator III to configure and maintain complex network... ...This hybrid position requires strong expertise in IT security and cloud technologies, alongside 5 to 7 years of relevant experience. Applicants should...SeniorNetwork
- ...solutions. Description The Senior Security Administrator role is to function as a Senior... ...systems, applications and network security devices. Perform... ...work experience. 5 to 7 years of combined IT... ...including routers, switches, firewalls, and associated network protocols...NetworkWork experience placement
$140k - $180k
Senior Director, Credentialing (Remote in U.S.) Full-Time Remote, US 3 days ago Requisition ID: 1231 Salary Range:... ...Experience Minimum of 5+ years of experience in... ...dependents in reaching the in-network medical deductible. You... ...and based on career level either 2 to 3 weeks PTO...SeniorNetworkLevel 3Remote jobFull timeWork at officeWorldwideHome officeMonday to Friday- Join ViziRecruiter, LLC. as a Senior Level 3 Network Technician supporting enterprise network infrastructure aboard cruise ships. This long-term contract offers unique responsibilities including troubleshooting, Cisco environment maintenance, and VMware-to-Hyper-V migration...SeniorNetworkLevel 3Long term contract
- Connection has a fantastic opportunity for a Senior Level 3 Network Technician. This long-term contract involves supporting enterprise network infrastructure while working onboard cruise ships. The ideal candidate will have a strong expertise in Cisco technologies and...SeniorNetworkLevel 3Long term contract
$98.4k - $147.6k
...Responsibilities: The Senior Network Engineer role focuses on... .... ~Collaborate with Level 2 and Level 3 teams to resolve complex routing, switching, firewall, and connectivity issues... ...in IP networking and IP security design and implementation (5–7 years preferred). ~...SeniorNetworkLevel 3Worldwide- VMD Consultancy is seeking a Senior Network Operations Engineer (Level 3) to provide advanced support and manage technical escalations in a remote full-time role. The ideal candidate should have strong MSP experience and deep technical expertise in Microsoft Azure networking...SeniorNetworkLevel 3Remote jobFull timeCasual work
$200k - $245k
...Senior Software Engineer/Algorithmic Trading Platform Global electronic trading industry... ...trading system incidents as part of the level 3 response team Actively contribute to... ...electronic trading. ~ Strong multithreaded and network programming experience. ~ Expert...SeniorNetworkLevel 3Full timeImmediate startRemote work- Application Developer Levels 1 - 5 - Enterprise Document Migration... ...s largest transportation network, serving a population of 15.3 million people across a... ...; basic knowledge of secure coding techniques is a plus... ...instruct and guide less senior software developers/analysts...NetworkLevel 3Temporary work
- ...Viptela SME Sr. Engineer, Architect level Engineer • General networking, working on a global SD-WAN. • SD-WAN... ...: 12+ overall networking experience; 5+ in SD-WAN Required... ...concepts, including routing, switching, firewalls, VPNs, and QoS. Proficiency in working...SeniorNetwork
$57.1k - $81.57k
...Telecom Support Analyst Levels 1-5 Job ID: 15949 Business Unit: MTA... ...: Date Posted: Jun 3, 2026 Description JOB TITLE... ...America's largest transportation network, serving a population of 15.3... ...responsibilities : ~ Guide less senior technicians and staff in the...NetworkLevel 3Temporary workWork at officeRemote work- ...products serves as the highest level of technical escalation... ...issues involving storage, compute, networking, and virtualization layers. Enterprise... ...scalability, performance, and security requirements of a large,... ...teams; manage complex Level 3 escalations involving distributed...SeniorNetworkLevel 3
- ...time applications, regardless of network conditions. Whether you're in a... ...telemetry that gives us fleet‑level visibility across hundreds of customer deployments. As a Senior Rust Engineer, you will own:... ...Systems‑level Rust experience (3+ years) — You've built production...SeniorNetworkLevel 3Remote workFlexible hours
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