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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 a Technical 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. Work to be performed in Ft. Meade, MD 20755. Description of Job Duties/Responsibilities: * Must have datacenter network design and architecture experience to include installation and configuration of Cisco routers, switches, firewalls, and IPSEC virtual private networks. • Must have skills needed to install, configure, and support the following: • Configuration, tuning, testing and advanced level troubleshooting and support of high-performance file systems such as XFS, GPFS and Lustre. • Advanced level troubleshooting and support of HPC farm systems and associated applications such as Nagios, xcat, failover software, and compilers. • Working knowledge of HPC MPP systems. • Configuration, tuning, testing and advanced level troubleshooting and support of distributed computing tools such as RES, LSF, and SLURM. • Configuration, tuning, testing, and advanced level troubleshooting of RedHat and Suse operating systems. • Expert security enterprise boundary and datacenter architecture and design. • Create system diagrams and present high-level presentations to management. Experienced in packet capture software. • Work to be performed in Ft. Meade, MD 20755. Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph) Required Qualifications: Candidates shall have a Bachelor's Degree in related field and have ten (10) years of demonstrable experience (15 years experience without degree) in support of a large client-server based IT enterprise. * Accepted professional certifications include a valid Red Hat Certified System Administrator or higher, Microsoft Certified Solutions Expert. Ready to join our team? Apply today! Our Technical Expert/Functional Expert (Network) 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 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) *Pro-rated when working less than 40 hrs/wk. • 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: 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.