Senior Security Engineer (Government)

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.AT&T maintains active contracts and relationships with U.S. Government entities that require secure communications and systems. The operational need to add members to our support staff will continue to enable robust solutions in the IT Service and Support framework. The position supports both the active contracts as well as new contract support requests in facilitation of business capture, operations, and new technology insertion. Close relationship building with the customers ensures operational readiness and compliance.This hands‑on role is ideal for an experienced IT and security professional who will support networking, physical and virtual computing infrastructure, threat detection tools, system monitoring, incident response, and secure technology integration. In this multifaceted position, you will manage systems administration, security operations, compliance activities, and user administration in coordination with ISSOs and ISSMs. Responsibilities include system integration, configuration, deployment, remediation, and ongoing operations. This position is onsite 5 days per week at the posted location(s) only. No relocation assistance is provided.Description of Job Duties/ResponsibilitiesThis position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.Administer and maintain Linux-based operating systems and virtualization platforms, such as RedHead, CentOS, Ubuntu, VMware,KVM, QEMU/KVM, and Hyper‑V.Support Windows server and workstation environments, including standalone systems and enterprise-wide deployments.Provide multi‑platform support for OEM appliances and VMware-based Windows and Linux virtual appliances.Mentor junior and mid-level team members on installation procedures, operational best practices, and security‑focused administration.Install, configure, operate, and maintain security and analysis tools such as Trellix, SentinelOne, Nessus, Splunk.Perform system patching, vulnerability remediation, and hardening activities for systems and networks.Deliver Tier1 through Tier3 technical support and collaborate with Tier2 support teams as needed.Produce and maintain operational and technical documentation, including OPS policies/instructions, CONOPS, SECOPS, and system build documents.Assist with the implementation, integration, and rollout of new IT solutions and technologies.Provide technical support for security compliance efforts and system accreditation processes.Required ClearanceTop Secret/SCI with polygraph. (#ts/sci) (#polygraph)Required QualificationsBachelor's degree and minimum 5 years of relevant experience in Security operations of systems supporting: Virtualization, Windows and Linux Computing solution engineering and architecture solutionsExperience with on-premise, cloud and hybrid-cloud based deployments.US citizenship is required.Active federal security clearance.Strong written and verbal communication skills.Demonstrated leader with team-oriented interpersonal skills; ability to effectively interface with a broad range of people and roles.Desired QualificationsActive Cleared Individual clearance supporting the overall business up to TS/SCI with polygraph.CISSP, virtual computing certifications, (DoDD8570/ DoDD8140).Experience with ITSM and/or ServiceNow.Comparable VMware certifications, RHCE, MS Certifications, Security Certifications IAT/IAM levels 1-3.Working knowledge of common operating systems (Windows, Linux, etc.) and basic endpoint security principles.Extensive experience in security operations and systems listed in the posting.BenefitsMedical/Dental/Vision coverage401(k) planTuition reimbursement programPaid Time Off and Holidays (at least 23 days of vacation each year and 9 company-designated holidays); pro-rated when working less than 40 hrs/wk.Paid Parental LeavePaid Caregiver LeaveAdditional sick leave beyond what state and local law require may be available but is unprotectedAdoption ReimbursementDisability Benefits (short term and long term)Life and Accidental Death InsuranceSupplemental benefit programs: critical illness/accident hospital indemnity/group legalEmployee Assistance Programs (EAP)Extensive employee wellness programsEmployee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phoneWeekly Hours: 40Time Type: RegularLocation: Chantilly, VirginiaIt 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.#J-18808-Ljbffr

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.AT&T maintains active contracts and relationships with U.S. Government entities that require secure communications and systems. The operational need to add members to our support staff will continue to enable robust solutions in the IT Service and Support framework. The position supports both the active contracts as well as new contract support requests in facilitation of business capture, operations, and new technology insertion. Close relationship building with the customers ensures operational readiness and compliance.This hands‑on role is ideal for an experienced IT and security professional who will support networking, physical and virtual computing infrastructure, threat detection tools, system monitoring, incident response, and secure technology integration. In this multifaceted position, you will manage systems administration, security operations, compliance activities, and user administration in coordination with ISSOs and ISSMs. Responsibilities include system integration, configuration, deployment, remediation, and ongoing operations. This position is onsite 5 days per week at the posted location(s) only. No relocation assistance is provided.Description of Job Duties/ResponsibilitiesThis position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.Administer and maintain Linux-based operating systems and virtualization platforms, such as RedHead, CentOS, Ubuntu, VMware,KVM, QEMU/KVM, and Hyper‑V.Support Windows server and workstation environments, including standalone systems and enterprise-wide deployments.Provide multi‑platform support for OEM appliances and VMware-based Windows and Linux virtual appliances.Mentor junior and mid-level team members on installation procedures, operational best practices, and security‑focused administration.Install, configure, operate, and maintain security and analysis tools such as Trellix, SentinelOne, Nessus, Splunk.Perform system patching, vulnerability remediation, and hardening activities for systems and networks.Deliver Tier1 through Tier3 technical support and collaborate with Tier2 support teams as needed.Produce and maintain operational and technical documentation, including OPS policies/instructions, CONOPS, SECOPS, and system build documents.Assist with the implementation, integration, and rollout of new IT solutions and technologies.Provide technical support for security compliance efforts and system accreditation processes.Required ClearanceTop Secret/SCI with polygraph. (#ts/sci) (#polygraph)Required QualificationsBachelor's degree and minimum 5 years of relevant experience in Security operations of systems supporting: Virtualization, Windows and Linux Computing solution engineering and architecture solutionsExperience with on-premise, cloud and hybrid-cloud based deployments.US citizenship is required.Active federal security clearance.Strong written and verbal communication skills.Demonstrated leader with team-oriented interpersonal skills; ability to effectively interface with a broad range of people and roles.Desired QualificationsActive Cleared Individual clearance supporting the overall business up to TS/SCI with polygraph.CISSP, virtual computing certifications, (DoDD8570/ DoDD8140).Experience with ITSM and/or ServiceNow.Comparable VMware certifications, RHCE, MS Certifications, Security Certifications IAT/IAM levels 1-3.Working knowledge of common operating systems (Windows, Linux, etc.) and basic endpoint security principles.Extensive experience in security operations and systems listed in the posting.BenefitsMedical/Dental/Vision coverage401(k) planTuition reimbursement programPaid Time Off and Holidays (at least 23 days of vacation each year and 9 company-designated holidays); pro-rated when working less than 40 hrs/wk.Paid Parental LeavePaid Caregiver LeaveAdditional sick leave beyond what state and local law require may be available but is unprotectedAdoption ReimbursementDisability Benefits (short term and long term)Life and Accidental Death InsuranceSupplemental benefit programs: critical illness/accident hospital indemnity/group legalEmployee Assistance Programs (EAP)Extensive employee wellness programsEmployee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phoneWeekly Hours: 40Time Type: RegularLocation: Chantilly, VirginiaIt 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.#J-18808-Ljbffr

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