Senior Network & HPC Architect (TS/SCI)

att; Columbia (MD); On-site; USD 89,000 - 196,000; Full time

Benefits offered by this job

Medical/Dental/Vision coverage

401(k) plan

Tuition reimbursement

Paid Time Off and Holidays

Paid Parental Leave

On-call compensation

Job summary

AT&T Global Public Sector is seeking a Technical Network Expert to design, implement, and sustain HPC environments. The role requires on-site presence at Annapolis Junction, MD, with a TS/SCI clearance and a focus on secure, high-performance networks across Linux, Windows, and UNIX.

Responsibilities include advanced troubleshooting, network architecture, and integration of HPC tools like Nagios, xcat, and SLURM. Excellent coordination with government clients is expected.

Qualifications

• Minimum 10 years in network engineering with a degree, or 15 years without.
• Datacenter network design and Cisco router/firewall/IPsec VPN experience.
• Certifications such as CCNA-SECURITY, GICSP, GSEC, Security+, SSCP or equivalent.

Responsibilities

• Design, implement, and sustain HPC networking environments.
• Troubleshoot HPC farms and distributed computing tools like RES, LSF, SLURM.
• Configure Red Hat and SUSE operating systems and security boundaries.
• Create system diagrams and present high-level overviews to management.
• On-call availability with compensation per on-call day.

Skills

Network engineering

Datacenter architecture

Cisco routing & switching

IPsec VPN

Linux/Windows/UNIX

Troubleshooting

Security architecture

Packet capture

On-call readiness

Education

Bachelor's degree in Networking or related field

Tools

Nagios

xcat

SLURM

RES

LSF

Cisco Routers/Switches/Firewalls

Job description

AT&T Global Public Sector is seeking a Technical Network Expert to design, implement, and sustain HPC environments. The role requires on-site presence at Annapolis Junction, MD, with a TS/SCI clearance and a focus on secure, high-performance networks across Linux, Windows, and UNIX.

Responsibilities include advanced troubleshooting, network architecture, and integration of HPC tools like Nagios, xcat, and SLURM. Excellent coordination with government clients is expected.