Type of Requisition:RegularClearance Level Must Currently Possess:Top Secret SCI + PolygraphClearance Level Must Be Able to Obtain:Top Secret SCI + PolygraphPublic Trust/Other Required:NoneJob Family:Information SecurityJob Qualifications:Skills:Computing, Information Systems, Security Requirements, Security SystemCertifications:NoneExperience:7 + years of related experienceUS Citizenship Required:YesJob Description:ISSE Level ITransform technology into opportunity as an Information Systems Security Engineer with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.At GDIT, people are our differentiator. As an Information Systems Security Engineer you will help ensure today is safe and tomorrow is smarter. We are looking for someone who shall perform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established information assurance IA standards and regulations, and recommend mitigation strategies. Validates and verifies system security requirements definitions and analysis and establishes system security designs. Designs, develops, implements and/or integrates IA and security systems and system components including those for networking, computing, and various environments.HOW AN INFORMTION SYSTEMS SECURITY ENGINEER WILL MAKE AN IMPACTParticipate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of secure networking, computing, and enclave environmentsParticipate as a security engineering representative on engineering teams for the design, development, implementation and/or integration of IA architectures, systems, or system componentsParticipate as the primary security engineering representative on engineering teams for the design, development, implementation, evaluation, and/or integration of secure networking, computing, and enclave environmentsApply knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environmentsInteract with the customer and other project team membersParticipate as the primary security engineering representative on engineering teams for the design, development, implementation, evaluation, and/or integration of IA architectures, systems, or system componentsSupport the Government in the enforcement of the design and implementation of trusted relationships among external systems and architecturesSupport security planning, assessment, risk analysis, and risk managementWHAT YOU’LL NEED TO SUCCEED:Education: A bachelor’s degree in computer science, Information, Assurance, Information Security System Engineering, or related discipline. Four additional years of ISSE experience may be substituted for a bachelor’s degreeRequired Experience: Seven (7) years’ experience as an ISSE or eleven (11) years’ experience as an ISSE may be substituted for a bachelor’s degreeRequired Technical Skills:Security Clearance Level: TS/SCI with Full Scope PolygraphLocation: Customer SiteUS Citizenship RequiredGDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidaysThe likely salary range for this position is $113,050 - $152,950. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:40Travel Required:Less than 10%Telecommuting Options:OnsiteWork Location:USA MD Annapolis JunctionAdditional Work Locations:Total Rewards at GDIT:Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.We connect people with the most impactful client missions, creating an unparalleled work experience that allows them to see their impact every day. We create opportunities for our people to lead and learn simultaneously. From securing our nation’s most sensitive systems, to enabling digital transformation and cloud adoption, our people are the ones who make change real.Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

ManTech is seeking a motivated, career and customer-oriented Information System Security Engineer (ISSE) to join our team in Linthicum Heights, MD. This role is vital for ensuring the confidentiality, integrity, and availability of systems within secure environments.The ISSE will provide cybersecurity and systems engineering support to:Link Encryptor Family (LEF) development, evaluation and certification efforts.Ensure interoperability between LEF implementations by specifying requirements and verifying compliance. Develop new versions of the LEF Cryptographic Interoperability Specification (LEFCIS) and maintain existing versions.Provide laboratory engineering support and participate in planning, setup, testing, and reporting of security, functionality, interoperability, and conformance testing of LEF products.Minimum requirements needed to qualify for the role:Fourteen years experience as an ISSE on programs and contracts of similar scope, type, complexity within the Federal Government is required.Bachelor’s degree in computer science, Information Assurance, Information Security System Engineering or related discipline from an accredited college or university is required.Four years of additional ISSE experience may be substituted for a bachelor’s degree.DoD 8570 compliance with IASAE Level 2 is required, CISSP CertificationUnderstanding of encryption technologies and cryptographic principles.Knowledge of system certification and accreditation (C&A) processes.Experience in performing vulnerability assessments, threat modeling, and risk analysis.Knowledge of network devices, including routers, switches, firewalls, and intrusion detection/prevention systems.Understanding of networking concepts and protocols, including serial communications (EIA-530, EIA-422/423, EIA-232, EIA-644), TCP/IP, HTTP/S, SSL/TLS, and RESTCONF/YANG.Knowledge of Operating Systems, including Linux, Windows and VMwarePreferred Qualifications:Deep understanding of symmetric and asymmetric key management techniques and principles.Experience with encryptors, secure communications, and cryptographic product evaluation.Familiarity with the agency’s Information Assurance Security Requirements Directive (IASRD) and Security Evaluation Requirements Document (SERD) requirements and security methods necessary to meet requirements.Experience reviewing and analyzing security documentation required to obtain agency certificationExperience with test equipment and analysis tools, including oscilloscopes, logic analyzers, network sniffers, and LAN/WAN testers.Experience with installation, configuration, and use of Link Encryptor Family devices, including KIV-7M.Knowledge of Tactical Data Links, such as Link-11, Link-16, and Link-22.Knowledge of satellite system Ground Operating Equipment encryptors, such as MYK-15A, MYK-16B, MYK-17B, and GRYPHON.Knowledge of the Link Encryptor Family Cryptographic Interoperability Specification (LEFCIS).Experience in the development and operation of LEFCIS compliant products.Experience developing Operational Security Doctrine and policies that define cybersecurity objectives for the protection and use of LEF devices.Experience in designing security solutions to mitigate risks and ensure compliance with government regulations (e.g., RMF, FISMA, NIST 800-53).Certifications relevant to Linux or specific networking technologies are a plus (e.g., RHCSA, RHCE, or CCNA).Clearance Requirements:Must have a current/active TS/SCI w/ PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.