System Administrator (SA3) (Government)
Columbia, Maryland
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.
MAROONMIDNIGHTS (MMN) is focused is on Directory Infrastructure Services (Active Directory (AD), Exchange, Identity Management, etc.), Enterprise Defense Services (Access Control, Security Services, etc.), and Desktop and Enclave Services (Application Services, Enclave Support Services, Systems Administration, etc.) to enable organizations to execute their Enterprise IT (EIT) mission obligations.
AT&T has an opening for a System Administrator: To support implementation, troubleshooting and maintenance of information Technology (IT) systems Enterprise IT (EIT) mission obligations.
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:
Provides support for implementation, troubleshooting and maintenance of information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 and Tier 3(Escalation) problem identification, diagnosis and resolution of problems.
- Provides support for the escalation and communication of status to agency management and internal customers.
- Provides support for the dispatch system and hardware problems and remains involved in the resolution process.
- Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.
- Provide support for implementation, troubleshooting and maintenance of IT systems.
- Manage the daily activities of configuration and operation of IT systems.
- Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
- Provide assistance to users in accessing and using IT systems.
- Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
- Perform account management, e.g. establishing, activating, modifying, disabling, and removing accounts.
- Provide configuration management, implementation, and sustainment of compliance with applicable system security controls.
- Perform periodic vulnerability scans of systems.
- Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all client/server/storage/network devices, mobile devices, etc.
- Implement IAVA security patches and ensure patch status is recorded in appropriate systems of record.
- Provide support for the escalation and communication of status to agency management and internal customers.
- Optimize system operations and resource utilization,and perform system capacity analysis and planning.
- Provide in-depth experience in trouble-shooting IT systems.
- Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
- Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
- Configure and manage UNIX, Linux and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
- Communicate and coordinate with the Information System Security Officer (ISSO) and Information System Owner (ISO) regarding system changes as part of the Change and Configuration Management Process.
- Support the ISO by completing required milestones of Plan of Action & Milestones (POA&M)as directed and coordinate completion status with the ISSO to reflect status within the Source System of Record for Security Authorizations.
- Ensure IT Assets remain compliant with Identity & Access Control Management (ICAM) policy.
- Provide Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
- Applies knowledge and understanding of mission islands, Trusted Thin Client, and enhanced VDI (e.g., remote GPU and memory scaling).
- Support the design of systems, mission architecture and associated hardware.
- Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA).
- Analyze and resolve complex problems associated with server hardware, applications and software integration.
- Support the design of systems, mission architecture and associated hardware.
- Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA).
- Analyze and resolve complex problems associated with server hardware, applications and software integration.
Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)
Required Qualifications: Bachelor’s degree in a technical discipline from an accredited college or university is required. (NOTE: Four (4) years of additional SA experience may be substituted for a bachelor’s degree). Fifteen (15) years' experience as a SA in programs and contracts of similar scope, type, and complexity is required. Six (6) years of experience with Service Management (ITSM) is required
Required Certifications:
DoD 8570 compliance with Information Assurance Technical (IAT) Level II certification. Taken from the list below:
- CCNA Security
- CySA+ **
- GICSP
- GSEC
- Security+ CE
- CND
- SSCP
Computing Environment (CE) certification. The CE certification requirements can be fulfilled with either:
Microsoft OS
Cent OS/Red Hat OS CE certifications
ITIL 4 platform certification.
Desired Qualifications:
- Experience with Active Directory, Identity Management, SCCM, DNS, Group Policy, Active Role Servers, Privileged Account Management (PAM) Services, and MS Exchange.
- Understanding of the concepts of mission islands, Trusted Thin Client, and enhanced VDI (e.g., remote GPU and memory scaling).
Ready to join our team? Apply today!
Our System Administrator (SA3) earns between $108,000 - $196,650yearly. 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:
40Time Type:
RegularLocation:
Columbia, MarylandIt 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-69291 Date posted 06/03/2025
Benefits
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