Information Systems Security Engineer (ISSE I) (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.
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 an Information Systems Security Engineer (ISSE): To provide design, implement, and maintain security architecture for large scale systems. The ISSE will play a critical role in ensuring compliance, mitigating risks, and protecting mission critical networks by providing technical solutions, security assessments and ongoing support across complex environments. 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:
- Validating and verifying system security requirements and establishing system security designs for large-scale systems, major system elements, and interfacing systems that are part of a large complex network environment with geographically distributed components.
- Identifying and implementing appropriate information security architectures and functionality to ensure
- Recommending and developing technical solutions, products, and standards based on current and desired system security architecture.
- Assessing and mitigating system security threats and risks throughout the program life cycle.
- Leading and/or contributing to the security planning, assessment, risk analysis, risk management, certification and awareness activities for various system and networking operations.
- Effectively collaborating with other internal technical experts on a day-to-day basis.
- Communicating with Program Managers and POCs from customer organizations when necessary, regarding Security issues of significant importance.
- Participating in Program Increment Planning and related agile team activities.
- Working closely with System Engineering, Test Engineering, and Integration teams to ensure that the hardware and software architecture and implementation meets security requirements.
- Analyzing and assessing system implementation against multiple security compliance policies and recommending and implementing enhancements.
- Evaluating security solutions to ensure they meet customer specified requirements for processing information.
- Evaluating the impact of new development on the operational security posture of the system.
- Evaluating, reviewing, and testing critical software.
- Proposing, assessing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies.
- Auditing and assessing system security configuration settings using common methodologies and tools.
- Managing and enforcing security strategies and policies that effect various components of geographically distributed systems.
- Providing configuration management for security-relevant information system software.
- Serving as a subject matter expert in security architecture to include providing advice to Program Managers, Customer technical experts, and internal program teams.
- Formulating security compliance requirements for new system features.
- Identifying and remediating security issues throughout the system.
- Supporting risk assessment, risk management, security control assessment, continuous monitoring, service design, and other IA program support functions.
- Working with development teams to enrich team-wide understanding of different types of vulnerabilities, attack vectors and remediation approaches.
- Planning and conducting security verification testing of relevant type 1 devices.
- Work to be performed in Ft. Meade, MD 20755
Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)
Required Qualifications:
- Must have demonstrated knowledge of and experience with common security tools, such as Nessus, NMAP and Wireshark hardware/software security implementation, communication protocol, encryption techniques/tools, and web services.
- Must have experience with secure configurations of commonly used desktop and server operating systems.
- Must be comfortable working on multiple systems and components simultaneously in various configurations.
- Seven (7) years experience as an ISSE on programs and contracts of similar scope, type, and complexity required.
- Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required. DoD 8570 compliance with IASAE Level 2 is required.
- Four (4) years of ISSE experience may be substituted for a bachelor’s degree.
Ready to join our team? Apply today!
Our Information Systems Security Engineer (ISSE I) (Government) 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:
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-84945 Date posted 10/02/2025
Benefits
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- Paid Time Off
- Tuition Assistance
- Insurance Options
- Discounts
- Training & Development
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