Tier III Network Engineer - Senior (Government) with Security Clearance
Job in
McLean, Fairfax County, Virginia, USA
Listed on 2026-08-12
Listing for:
AT&T Government Solutions
Full Time
position Listed on 2026-08-12
Job specializations:
-
IT/Tech
Cybersecurity, Network Engineer, Systems Engineer, Network Security
Job Description & How to Apply Below
Our National Security Team supports the intelligence community, providing, operating, and assuring critical voice, video and collaboration services for the full spectrum of operations. AT&T has an opening for a Tier 3 Network Engineer to support the 24x7 Network Operations Center in providing Tier 3 network service and superior troubleshooting expertise.
Job Duties /Responsibilities:
* 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). Required Clearance: TSSCI with poly (#tssci) (#polygraph)
Required Qualifications:
* Advanced networking qualifications including MPLS, BGP, OSPF, LAMBDA. LAN/MAN/WAN/Optical specialization.
* Utilization of common ticket systems (Remedy, Service Now) 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.
Desired Qualifications
* Preferred network certifications Cisco CCNA, CCNP, CCIE, Juniper JNCIA, JNCIS, or JNCIE, ITIL Foundations, and/or CISSP Our Tier 3 Network Engineer - Senior' s earn between $89,200 - $175,358. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training. Joining our team comes with amazing perks and benefits:
* 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 wireline phone Our Senior Network Design Engineering jobs earn between $89,200.00 - $ USD Annual. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.
Joining our team comes with amazing perks and benefits:
* 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 Weekly
Hours:
40 Time Type:
Regular
Location:
Mclean, Virginia Salary Range: $89,200.00 - $ AT&T and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry,…
Position Requirements
10+ Years
work experience
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