Tier III Network Engineer – Expert

AT&T

Tier 3 Network Engineer providing support for AT&T's 24x7 Network Operations Center. Involves maintaining network software and hardware for communication systems in government projects.

Posted 5/28/2026full-timeMcLean • Virginia • 🇺🇸 United StatesSeniorLead💰 $89,200 - $198,358 per yearWebsite

Tech Stack

Tools & technologies

ServiceNow

About the role

Key responsibilities & impact

Provide Tier 3 support to the Network Operations Center (NOC)
Supports an organization's local area network (LAN), wide area network (WAN), customer networks, Intranet and Internet and other data communications systems or a segment of a network system
Monitor network to ensure network availability to all system users and perform necessary maintenance to support network availability
Maintain network hardware and software
Proactively identify risks in the network and develop a plan to mitigate them
Supports numerous business requirements for telecommunications (e.g., LAN, MAN, WAN, Voice and Video)

Requirements

What you’ll need

Advanced networking qualifications including MPLS, BGP, OSPF, LAMBDA
LAN/MAN/WAN/Optical specialization
Utilization of common ticket systems (Remedy, ServiceNow) and common network management tools (HPOV, HPNA, Solarwinds, MNS, Netcool, etc)
Must have hands on troubleshooting and fault isolation of IT business systems
Must have a strong understanding of the OSI model and configuration of routing protocols such as EIGRP, OSPF, MPLS, BGP, LDP
Candidate must have a total of 12 years of applicable experience. The experience can be a combination of degree and work history
This can be a High School degree and 12 years of work history OR an Associate’s and 10 years, a Bachelors’ and 8 years, a Masters and 6 years or a PhD and 4 years of work history
Preferred network certifications Cisco CCNA, CCNP, CCIE, Juniper JNCIA, JNCIS, or JNCIE, ITIL Foundations, and/or CISSP

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

MPLSBGPOSPFLANMANWANEIGRPLDPtroubleshootingfault isolation

Certifications

Cisco CCNACisco CCNPCisco CCIEJuniper JNCIAJuniper JNCISJuniper JNCIEITIL FoundationsCISSP