Job Description:

AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.

The scope of this Contract requires specialized expertise in areas such as high-performance computing (HPC), automated processing systems, distributed software design, and secure hosting and networking solutions. The IT infrastructure consists of a mix of Linux, Windows, and UNIX. The environment includes a variety of network devices, server interconnections, mass storage solutions, and essential supporting infrastructure services.  The services provided under this Contract support areas including HPC, infrastructure maintenance for HPC systems, networking, office automation, and the development of specialized software.

AT&T has an opening for aTechnical Network Expert: To support in design, implementation, and sustainment of high-performance computing (HPC) environments. This role provides critical expertise in network design, advanced troubleshooting, and system integration across Linux, Windows, and UNIX infrastructures. The Technical Network Expert will play a key role in enabling AT&T to deliver innovative, mission critical solutions to our customer. This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Description of Job Duties/Responsibilities: The Technical/Functional Experts must provide Infrastructure Server and Sustainment services, which the Government will use to enhance and complement High Performance Computing (HPC) sustainment capabilities across two sites and geographic locations, to include the integration and management of the Exceptionally Controlled Information (ECI) data system. Server Ops team members and the Government monitoring service (in some cases 24x7x365) both monitor systems. All Systems will be integrated and utilize Government monitoring services. The Government monitoring service will monitor and report problems to the Team via Email/phone during business hours. 

Proficient with the following (as specific position requires):

Provide Tier 0-4 support to server team at all three site locations, plus design and architecture support. 

Must have skills to install, configure, tune, and support the following: 

Servers running Sparc Solaris, SolarisX64, RedHat, and Suse, with direct attached and FC SAN storage. Client server technology utilizing NFS and CIFS. Large memory SMP systems with many cores. Enterprise client server configurations. Multi-vendor file systems such as XFS, GPFS, and VXFS. Fielded systems. Blade systems and associated interconnects (SAD, FC, TCP/IP, etc.) RedHat and Microsoft Operating Systems. Microsoft Exchange. Centrify.Infrastructure support services such as DNS, NIS, Active Directory, Centrify, Zenoss, SiteScope, HP Openview, HPSA, HPSE, Splunk, Sendmail, Exchange, NetQos, Infoblox. Thin client solutions based on virtual bridges and Citrix. NoMachine NX. Virtualization products; VMWare and Solaris containers. Meet with vendors to discuss new technologies. Architect integration of authorized new technologies into environment. Provide support for design phases to include evaluation, government approval and integration planning. 

Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)

Required Qualifications: 10 years’ experience in a large and complex IT environment providing industry and government recognized functional expertise in addition to related degree or 15 years’ experience in lieu of degree. 

DoD 8570 IAT II level certification required.

Ready to join our team? Apply today!

Our Technical Expert/Functional Expert (Server) (Government) earns between $89,200 - $207,900 yearly. 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 coverage401(k) planTuition reimbursement programPaid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays) *Pro-rated when working less than 40 hrs/wk.Paid Parental LeavePaid Caregiver LeaveAdditional sick leave beyond what state and local law require may be available but is unprotected · Adoption ReimbursementDisability Benefits (short term and long term)Life and Accidental Death InsuranceSupplemental benefit programs: critical illness/accident hospital indemnity/group legalEmployee Assistance Programs (EAP)Extensive employee wellness programsEmployee 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:

Columbia, Maryland

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-96640 Date posted 01/09/2026