**Job Description:** This position requires office presence of a minimum of 5 days per week and is located at customer's site. 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. 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 Network Security Administrator to support the client’s network tools function in providing firewall expertise. **Job Duties/Responsibilities:** + Perform IT Systems Administration on physical and virtual infrastructure with a focus on firewall, email, and web security protocols. + Ensure cyber security and OPSEC policies, principles, and practices are an integral element of the operating environment. + Integrate hardware and software components within the systems environment. Continually monitor and fine-tune performance of the Information Systems. + Conduct analyses of network usage, user complaints, traffic interruptions, hardware and software capabilities, and other relevant factors. + Configure and manage Palo Alto’s, Cisco ESAs, WSAs and Forcepoint Firewalls with basic network experience to include IP addressing, subnets and knowledge of protocols and port numbers. **Required Clearance** TSSCI with poly (#tssci) (#polygraph) **Required Qualifications:** + Experience installing and configuring Windows 10; installing and configuring Windows Server 2012; configuring Advanced Server 2012 Services. + Windows/UNIX Systems Administration experience to include Active Directory Domain Services (DNS, DHCP, GPO Management) as well as Active Directory Certificate Services. + Experience with firewalls (Palo Alto, McAfee specifically but Cisco or any other vendor is good too) + Understanding of Security protocols at least the level of Security + Network experience at least with a Network + or CCNA R/S + Experience with troubleshooting, to include working from command lines, using Splunk or wireshark + Basic Linux / Unix is a plus + Candidate must have a total of 10 years of applicable experience. The experience can be a combination of degree and work history. This can be a High School degree and 10 years of work history OR an Associate’s and 8 years, a Bachelors’ and 6 years, a Masters and 4 years or a PhD and 2 years of relevant work history. **Desired Qualifications** + Strongly preferred: experience with OpenText’s Network Node Manager/NOM. + Experience with ServiceNow ITOM + Security+ CompTIA commercial certification (or higher, such as CISSP, etc.). + Windows and UNIX/Linux. VMware. Our Network Security Administrator's earn between $79,300 - $152,829. 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 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 will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status