**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. Our National Security team supports our Federal Government by providing, operating and assuring critical voice, video and collaboration services for the full spectrum of national security operations. AT&T has an opening for **System Administrator** to administer day-to-day IT systems for our customized network solution in support of the federal government. **Job Duties/Responsibilities:** + The Linux System Administrator will be responsible for administrating day-to-day IT systems to include system availability, backup/restore, configuration changes, maintaining and patching both physical and virtual. + Install and configure workstations, servers, printers, and data, voice, or video network components. + Install and maintain software releases. + Maintain data confidentiality, integrity, and availability. + Consult with clients, hardware and software vendors, application programmers, and the network team. + Provide technical support for development, test, and production environments. + Perform capacity planning, system administration, system tuning, problem analysis and hardware/software upgrades. + Develop administrative policies, documentation, and procedures to ensure that assets are properly maintained and operated. + Perform testing and establish system acceptance criteria on current and new hardware and software. + Determine training needs and develop system administration guidelines tailored to the work environment. + Configure and build the server hardware and network interfaces to meet client and vendor technical specifications. + Build client profiles and system configurations for software distribution equipment. + Respond to system alerts and engage in troubleshooting and problem resolution. **Required Clearance:** TS/SCI with polygraph. (#ts/sci) (#polygraph) **Required Qualifications:** Ten (10) years of experience as an SA in programs and contracts of similar scope, type, and complexity are required. Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university, or equivalent work experience, is required. **Ready to join our team? Apply today!** **Our Principal-Systems Administrator (SA2) earns between** **$78,800** **- $130,600 yearly. Not to mention all the other amazing rewards that working at AT&T offers. From health insurance to tuition reimbursement and paid time off to discounts on products and services just to name a few. There is a lot to be excited about around here. 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:** 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 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