ManTech is seeking an Information Systems Security Engineer (ISSE) in Herndon, VA. Join ManTech and help protect our country against our cyber adversaries while working on innovative projects that offer opportunities for advancement. We encourage our team members to share and grow their skills and expertise while creating robust and cutting-edge solutions.Responsibilities include, but are not limited to:Review and assess Risk Management Framework (RMF) authorization body of evidence for classified information systems, to include System Security Plan (SSP), Security Control Traceability Matrix (SCTM), Continuous Monitoring Plan, Incident Response Plan, Access Control Plan, and Security Assessment PlanReview new and existing systems for technical compliance with IA directives and protection of data at all classification levels including SCIAdvise on in-depth security design review and threat/risk assessmentsProvide inputs to technical artifacts, including Plans of Action and Milestones (POA&Ms), Security Control Traceability Matrices (SCTM), and Risk Assessment Reports (RARs)Conduct site visits (as required) and assessments to inspect IA plans and security control implementations and support Incident Response Team (IRT) activitiesMinimum Qualifications:3+ years of implementing NIST 800-53, Rev 4 and the Risk Management Framework (RMF)3+ years of using information security and assurance practices and principles for the customer3+ years of experience with Windows and Linux environments3+ years of experience with virtualization or cloud environmentsExperience with information security tool such as MS Active Directory, Splunk, ACAS/Nessus, McAfee and AWS SecurityDoD 8570 IAT Level II certification or higherPreferred Qualifications:Knowledge of enterprise cyber defense technologies such as SIEM systems,SysMon, network and host based IDS and IPS, network and host-based malware detection and prevention, Endpoint Detection & Response (EDR) and Network Detection & Response (NDR), Network and Host malware detection and prevention (EDR/NDR) tools, forensics tools and applications, Web/Email gateway security technologies, Security Orchestration, Automation and Response (SOAR) and cloud based platforms such as Azure, AWS, or Google.Clearance Requirements:Active/Current TS/SCI with polygraph

ManTech is seeking a motivated, career and customer-orientedCyber Security Engineer, Principal serving as a Project Manager for Enterprise Services, to join our team in the Chantilly, VA.Responsibilities include, but are not limited to:Track and document projects and tasks and engage various stakeholders for status on deliverables and activitiesGain a high level of understanding of a wide-variety of projects including technical baseline, project schedules, dependencies, stakeholders and risksLead designated projects within the organization and use allocated teams, tools and processes to ensure timely delivery of program projectsDevelop and maintain project and program plans and high-level project schedules with dependencies, milestones and critical path identificationCoordinate various Technical Exchange Meetings, teleconferences, team meetings, track action items and various other program tasks as assignedConstruct workflows, diagrams, and pivot tables to produce data for monthly reportsAnalyze and make recommendations for policies/procedures/processes in order to increase efficiencies and streamline program activitiesPrioritize requirements based on the needs of the projectInteracts with other team members and customers at multiple levels to gather, supply, or coordinate informationEnsure compliance with all customers’ policies and procedures to include TASKORDsEnsure compliance with the Enterprise service requirements to include CONOPS, Account Management, and System Security PlansWork closely with customers on onboarding, updates and troubleshooting issues with vulnerability scanningProvides customer support via phone, email, or messaging services to resolve issues and answer questions. This includes maintaining communication throughout the entire process, as necessary.Provides insight into efficiencies that can be gained from the current workflow based on an understanding of the customers’ requirementsAnalyze customer feedback to assist in process improvementPerforms engineering support and system administration of specialized cybersecurity applications and systems to include installation, configuration, maintenance, patching, and back-up/restoreProvides knowledge in creation, editing, and management of scan policies, audit files, scan jobs, reports, dashboards, and custom content for specialized cybersecurity systems including but not limited to Tenable Nessus tools, web-based content, ServiceNow integrationProvides Tier 2 and 3 maintenance support for deployed cybersecurity technologiesSupports Assessment and Authorization activities related to cybersecurity technologies, where applicableIdentifies potential conflicts with implementation of any cybersecurity tools within the enterprise and develops recommendations to remediate these conflictsProvides ideas for automating repetitive project tasks and metrics collection through the use of scripts and assists with testing/implementation to productionUpdating project documentation, where applicableOther project and corporate duties as assigned to support the customerBasic Qualifications:Bachelors Degree with 7+ years of Cyber Experience or 4+ years additional experience in lieu of degreeExperience with Tenable product suite and vulnerability scanningKnowledge of Windows and Linux systems administration, general operating system security practices, TCP/IP networking, and network security concepts is requiredKnowledge of ServiceNowAbility to organize, plan, and multi-task with attention to detailMust have or be willing to obtain IAT Level II certifications within 6 months of hirePreferred Qualifications:Knowledge of and proficiency in the use of AWS technologiesKnowledge of federal Cyber Security Guidance such as NIST SP 800-37 – Guide for Applying the Risk Management Framework to Federal Information Systems and NIST 800-137 – Information Security Continuous Monitoring (ISCM) for Federal Information Systems and OrganizationsAbility to function in a fast-paced environment and effectively manage multiple tasks simultaneously; coordinating resources and ensuring scheduled goals are metAbility to effectively interact with various levels of senior management is necessaryAbility to make decisions and resolve problems effectively – seek out information and data to evaluate, prioritize and formulate best solution or practiceSecurity Clearance Requirements:Must possess an active TS/SCI w/ PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the timeConstantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printerThe person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsAbility to work in a cubicle environment without distractions

ManTech is seeking a motivated, career and customer-oriented Cyber Security Engineer to join our team in Chantilly, VA.A qualified candidate will be responsible for the following duties and responsibilities, but are not limited to:Maintain and provide support to enterprise Cyber Security Engineering requirements.Applies Cyber Security Engineering and Network Security Engineering expertise to optimize the enterprise protection posture.Recommends and participates in activities that prevent repeated vulnerability assessment findings.Provides and participates in A&A support for projects and technical exchange meetings.Contributes to contract deliverables for this WBS element.Supports disparate Network Security appliances and vendors (IDS/IPS, Web Gateways, Email Gateways, etc.).Provide detection, identification, and reporting of possible cyber-attacks/intrusions, anomalous activities, and misuse activitiesAdminister technologies that directly support cyber security and the protection of company assets and data. Includes operational support for Identity Management, Privileged User Access, Access Control (firewall), End Point Protection, Internet Protection, Vulnerability Scanning, and SIEM support.Assistance in the development and implement enterprise mitigation actions in response to complex vulnerabilities.Actively support the enforcement of Cyber Security policy and participates in incident responses.Solves complex problems; takes a new perspective using existing solutions.Work independently, receive minimal guidance.Acts as a resource for colleagues with less experienceRequires conceptual and practical expertise in own area and general knowledge of related areasHas knowledge of best practices and how own area integrates with others; is aware of the competition and the factors that differentiate the company in the marketActs as a resource for other team members; may lead projects with limited risks and resource requirementsSolves complex problems by taking a new perspective on existing solutions; exercises judgment based on the analysis of multiple sources of informationImpacts a range of customer, operational, project or service activities within own team and other related teams; works within broad guidelines and policiesExplains complex, difficult and/or sensitive information; works to build consensusMinimum Qualifications:Bachelor’s Degree in a Cyber/IT related field, or 4 additional years of experience4 years of relevant work experience.Experience with COTS technologies used in a Cybersecurity Engineering environment.Preferred Qualifications:IAT Level II (GSEC, Security+, SSCP, or CCNA-Security) certificationExperience working within a Cybersecurity Operations Center environment.Proficient in Windows and Linux operating systems.Working knowledge of current COTS Cybersecurity technologies.Understanding of latest security principles, techniques, and protocols.Ability to function in a fast-paced environment and effectively manage multiple tasks simultaneously; coordinating resources and ensuring scheduled goals are met.Excellent verbal and written communication skills are required.Ability to effectively interact with various levels of senior management is necessary.Ability to make decisions and resolve problems effectively – Seek out information and data to evaluate, prioritize and formulate best solution or practice.Must be able to multi-task, work independently and as part of a team, share workloads, and deal with sudden shifts in project priorities.Security Clearance Requirements:TS/SCI with polygraphPhysical Requirements:Must be able to be in a stationary position more than 50% of the time.Must be able to communicate, converse, and exchange information with peers and senior personnel.Constantly operates a computer and other office productivity machinery, such as a computer.

ManTech is seeking a motivated, career and customer-oriented Senior Principal Cyber Security Engineer to join our team in the Chantilly, VA.As a Senior Principal Cyber Security Engineer, you will be responsible for expanding network architecture of various vendor network devices, such as routers, switches, load balancers and firewalls. Work closely with teams of engineers to implement and maintain the complex architecture.Responsibilities include, but are not limited to:Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services. Comply-to-Connect support is comprised of managing and maintaining the appliances, applications, servers, and supporting infrastructure on unclassified and classified environments.Coordinate with the network service provider to develop and maintain network architecture diagramsEvaluate and recommend changes and/or technology upgrades to address performance, standardization, and industry best practicesMonitor and investigate C2C performance and faults and recommend improvements.Interacts with other team members and customers at multiple levels to gather, supply, or coordinate informationGood communication and customer service skills are needed along with ability to coordinate effectively with individuals from multiple levels and across multiple teamsSupports Assessment and Authorization activities related to cybersecurity technologies, where applicableBasic Qualifications:Minimum education: B.S. or 4 additional years of experienceMinimum/general experience: 10+ years of related experienceExpertise in technologies involved in large scale enterprise deployments/data centersExperience in deploying and/or supporting enterprise security software products such as firewalls, IPS, Anti-Virus solutions, application firewalls, high availability solutions, network management systems, virtual systemsExperience with tools such as Nmap, Nessus, and tcpdumpExperience implementing and using complicated software products that involve multiple componentsAbility to clearly document complicated steps and proceduresWorking knowledge of shell, perl and xml scriptingExperience with vendor agnostic C2C capabilities and services, open-source components and trends, DoD integration and networks, and DoD engineering and sustainment procedures and processes to deliver real time C2C enterprise-level expertise to the customer base a plusCisco Identity Services Engine (ISE) experience desired, not requiredKnowledge of Windows and Linux systems, general operating system security practices, TCP/IP networking, 802.1x and network security concepts is requiredMust have or be willing to obtain IAT Level II or higher certification within 6 months of hireClearance Requirements:Active TS/SCI with PolygraphPhysical Requirements:Must be able to remain in a stationary position 75% of the timeConstantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printerThe person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsMust be able to detect information on a computer screen

ManTech is seeking a motivated, career and customer-oriented Cyber Security Engineer, Principal, serving as a Deputy Project Manager, to join our team in the Chantilly, VA, area.Responsibilities include, but are not limited to:Assist in the creation of fully developed project schedules utilizing the Enterprise Scheduling Service platform (ESS) built on Microsoft ProjectAssist with creating quality briefing decks, to include detailed cost estimates, based on projects for senior leadership presentationCoordinate the engineering, integration, and administration function required to deliver capabilities and services to the enterpriseEnsure that all aspects of the projects are completed and delivered according to the implementation plan and scheduleResponsible for coordinating the build-out and testing of sophisticated applications and tools in a virtual and physical environmentManage the engineering, integration, and administration support required for successful delivery of capabilities and services to the operational and engineering baselineManage incident/request ticket queues through ServiceNow and various ticket platformsManage, utilize, evaluate, and update all engineer instruction sets and SOPsAttend weekly customer and corporate meetings and track action items to completionCoordinate and assign tasks in aiding the Program/Project engineers in testing and implementing future enhancementsOperate and multitask in a dynamic high tempo environmentPerform work duties in a government environment as part of a multi-contractor teamSupport integration of systems applications and tools within the customer’s environmentAssist with the management of Tier 2-4 support to the customer to include troubleshooting and resolution of issuesMinimum Requirements:Bachelor's Degree or 4+ years of additional experience in lieu of degree7+ years of relevant cyber security work experienceExperience with managing and leading of small to medium teamsAbility to demonstrate understanding and appropriate application of DoD/IC policy and technical security guidance to information systemsIAT Level II certification or willing to obtain within 6 months of hirePreferred Qualifications:Experience with system design and integrationExperience with Risk Management Framework knowledgeKnowledge of security technologies such as vulnerability management, intrusion detection/prevention, log monitoring, and endpoint protectionAbility to learn the latest security principles, techniques, and protocolsClearance Requirements:Must possess an active TS/SCI w/ a CI polygraphPhysical Requirements:Must be able to remain in a stationary position 50%Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printerThe person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations

ManTech is seeking a motivated, career and customer-oriented Cyber Security Engineer, Principal to join our team in Chantilly, VA, area.Responsibilities include, but are not limited to:Responsible for the operations and maintenance of deployed Enterprise Cross Domain SolutionsEngineers and deploys capabilities to provide new functionality, improve system performance/availability, and for generating efficiencies in the maintenance of the operational environmentProvides Tier 2/3 maintenance support for deployed Cross Domain Solutions (CDS) interface technologiesSupports Assessment and Authorization activities related to CDS technologiesIdentifies potential conflicts with implementation of CDS technologies within the enterprise and develops recommendations to remediate these conflictsContributes to the completion of milestones associated with specific projectsProvides solutions to a variety of complex technical problemsDevelop plans to safeguard computer files against unauthorized modification, destruction, or disclosureMinimum Requirements:Bachelor's Degree or 4+ years of additional experience in lieu of degree7+ years of cyber experienceExperience with Linux operating systemsKnowledge of general operating system security practices, TCP/IP networking, and network security conceptsIAT Level II certification or willing to obtain within 6 months of hireDemonstrated technical experience:Knowledge of CDS technologies on the NCDSMO approved products listKnowledge with cybersecurity architectural principles such as defense in depth, resilience, and integrated security operationsKnowledge of database and operating system securityKnowledge of defensive cyber operationsAbility to apply security principles to the systems and enterprise system designsClearance Requirement:Must possess an active TS/SCI w/ PolygraphPhysical Requirements:Must be able to remain in a stationary position 75% of the time.Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsMust be able to detect information on a computer screen

ManTech is seeking a motivated, career and customer-oriented Information System Security Officer - Mid (ISSO) to join our team in the Chantilly, VA area.A qualified ISSO will ensure that the appropriate operational security posture is maintained for assigned information systems and as such, works in close collaboration with the Information System Security Manager (ISSM). Ensure that cyber security requirements are effectively integrated into information systems' operations, management, and documentation. Provide critical systems, application and infrastructure support to the customer. Work with a team across multiple technical areas to include security, and systems administration. Offers a great opportunity for technical and professional growth.Responsibilities include, but are not limited to:• Controlling, labeling, virus scanning, and appropriately transferring data between information systems at varying classification levels.• Inspecting computer hardware prior to disposal.• Assessing and responding to security-related requests within various ticketing systems.• Analyzing new software requests.• Maintaining operational security posture for information systems.• Performing risk assessment analysis to support Assessment and Authorization (A&A).• Preparing and reviewing A&A documentation in accordance with ICD 503.• Supporting industry partners with their A&A efforts.• Prepare system documentation for assessment in accordance with the Risk Management Framework (RMF); identify deficiencies and provide recommendations for solutions; track findings with Plan of Action and Milestones (POA&M) through mitigation and risk acceptance.• Create security policies and maintain existing information system security documentation• Conduct periodic and continuous reviews of the system to ensure compliance with the authorization package; perform Nessus scans and coordinate with O&M support to correct.• Conduct daily, weekly and monthly audit review and management of the audit collection system.• Continuously review/evaluate best practices for implementing comprehensive audit program.• Implement vulnerability management programs, including tracking and addressing IAVAs and security patches, accessing applicability to existing systems, and ensuring closure.• Implement media control and data transfer policies.Basic Qualifications:• Bachelor’s degree and 8 or more years of relevant experience.• Familiarity with information system security principles.• Ability to build rapport with military, civilian, and contractor personnel at all levels.• Knowledge of security-related IC and DoD policies, procedures and operating instructions.• One of the following certifications required Information Assurance Management (IAM) Level II (CAP, GSLC, CISM, CASP, CISSP, Security+) level, or higher certification.• Experience with Insider threat is highly desired.• Ability to travel up to 25%Security Clearance Requirements:Active/current TS/SCI with Polygraph is requiredPhysical requirements:• Must be able to be in a stationary position more than 50% of the time• Must be able to communicate, converse, and exchange information with peers and senior personnel• Constantly operates a computer and other office productivity machinery, such as a computer

ManTech is seeking a motivated, career and customer-oriented Program Security Officer 3 (PSO 3) to join our team at our Chantilly, VA location to provide unparalleled support to our customer and to begin an exciting and rewarding career within ManTech. The Program Security Officer will assist Director and Deputy Directors of Security in the planning and execution of program protection.Responsibilities include, but are not limited to:The PSO will assist the Senior Government Program Security Officer complete assigned actions in support of a multi-disciplined and complex organization (10+ years NRO and/or IC experience, preferably closer to the 15-20+ range) with experience in program protection (P2), security and/or classification policy, planning and execution of program security.Position will be fully engaged with the organizations Policy and Security offices on data sharing/tech sharing requests from mission partners, both foreign and domestic.Subjects would assist on actions with the Program front office to include policy and governance lead for actively developing future classification guidance that will be integrated into programs.Position requires a demonstrated ability to interface with senior level mission partners across the DoD, IC, and foreign entities.Work myriad security issues with the Directorates and Offices in physical, personnel operational, technical, information, industrial and information system securityProvide assistance to defense contractors in all industrial security disciplinesPosition requires occasional domestic and foreign travel.Basic Qualifications:HS Diploma and 15 or more years relevant experience or Bachelor Degree and 8 or more years relevant experience, or Master Degree and 5 or more years, or Associates and 12 or moreyears of experienceHave extensive IC security experience across multiple security disciplinesAbility to work high-level, complex or sensitive security issues thoroughly and with discretionExperience managing controlled access programs (CAP) and special access programs (SAP)Demonstrated ability to establish effective working relationships with other Government Agencies and mission partnersDemonstrated ability to identify and assess multiple sources for classification determinationsSubstantive experience providing risk-managed security recommendations to program managers, in support of secure and successful mission accomplishmentAbility to handle complex security classification issuesAbility to analyze complex information, independently, take appropriate actions, and review and approve recommendations from othersDemonstrated ability to effectively communicate one-on-one or in large groupsConsistently deliver articulate and effective briefings/presentations on complex topics to groups that may be large and/or include high-level decision makersAbility to prioritize competing requirements and tasks and managing long-term tasks as well as short-term obligationsDemonstrated experience working with industrial security staffsHave a working knowledge and be able to implement Intelligence Community Directives as well as NRO Directives and InstructionsAbility to effectively provide PSO guides to junior PSOs25% travel required CONUSPreferred Qualifications:Have outstanding interpersonal skillsAble to communicate one-on-one or in large groupsAble to interact and effectively communicate with peers and staff as well as senior government PersonnelBe successful in a fast-paced environment where priorities change constantlyMust be able to multi-taskSecurity Requirements:Must possess an active TS/SCI with PolygraphPhysical requirements:Must be able to be in a stationary position 50% of the timeMust be able to communicate, converse, and exchange information with peers and senior personnel

ManTech is seeking a motivated, career and customer-oriented Program Security Officer 3 (PSO 3) to join our team at our Chantilly, VA location to provide unparalleled support to our customer and to begin an exciting and rewarding career within ManTech. The Program Security Officer will assist Director and Deputy Directors of Security in the planning and execution of program protection.Responsibilities include, but are not limited to:The PSO will assist the Senior Government Program Security Officer complete assigned actions in support of a multi-disciplined and complex organizationResponsible for Program Protection (P2), security and/or classification policy, planning and execution of program security.Position will be fully engaged with the organizations Policy and Security offices on data sharing/tech sharing requests from mission partners, both foreign and domestic.Subjects would assist on actions with the Program front office to include policy and governance lead for actively developing future classification guidance that will be integrated into programs.Interface with senior level mission partners across the DoD, IC, and foreign entities.Position requires occasional domestic and foreign travel.Work myriad security issues with the Directorates and Offices in physical, personnel operational, technical, information, industrial and information system securityBasic Qualifications: HS Diploma and 15 years relevant program security experience or Bachelor's Degree and 8 or more years relevant experience, or Master's Degree and 5 or more years, or Associates and 12 or more years experience10+ years NRO and/or IC experience, preferably closer to the 15-20+ range with experience in program protection (P2), security and/or classification policy, planning and execution of program security.Have extensive IC security experience across multiple security disciplinesAbility to work high-level, complex or sensitive security issues thoroughly and with discretionDemonstrated ability to establish effective working relationships with other Government Agencies and mission partnersDemonstrated ability to identify and assess multiple sources for classification determinationsSubstantive experience providing risk-managed security recommendations to program managers, in support of secure and successful mission accomplishmentAbility to handle complex security classification issuesAbility to analyze complex information, independently, take appropriate actions, and review and approve recommendations from othersConsistently deliver articulate and effective briefings/presentations on complex topics to groups that may be large and/or include high-level decision makersAbility to prioritize competing requirements and tasks and managing long-term tasks as well as short-term obligationsDemonstrated experience working with industrial security staffsHave a working knowledge and be able to implement Intelligence Community Directives as well as NRO Directives and InstructionsAbility to effectively provide PSO guidance to junior PSOsTravel required CONUS and OCONUS 25%Preferred Qualifications:Have outstanding interpersonal skillsAble to communicate one-on-one or in large groupsAble to interact and effectively communicate with peers and staff as well as senior government personnelBe successful in a fast-paced environment where priorities change constantlySecurity Requirements:Must possess an active TS/SCI with PolygraphPhysical requirements:Must be able to be in a stationary position 50% of the timeMust be able to communicate, converse, and exchange information with peers and senior personnelConstantly operate a computer and other office productivity machinery, such as a computer

ManTech is seeking a motivated, career and customer-orientedProgram Security Officer 2 (PSO 2) to join our team in theChantilly, VA areaor in Springfield, VA with work hours 6:00pm – 2:00am to provide unparalleled support to our customer and to begin an exciting and rewarding career within ManTech.Responsibilities include but not limited to:The PSO-2 is a mid-level security professional who provides advice and assistance to government security officers remotely.Work myriad security issues in a multi-disciplined and complex organization.This position requires a proven working knowledge of classification management, information systems security, personnel security, and physical security for the purpose of providing guidance to customers and industry partners.Conduct briefings and indoctrinations to a variety of audiences and must be able to convey information in a clear and articulate manner.Communicate effectively with Senior NRO leaders.Positions Requirements: HS Diploma and 8 or more years relevant experience or Bachelor's Degree and 3 or more years relevant program security officer experienceAbility to work high-level, complex or sensitive security issues thoroughly and with discretionHave excellent writing skills a mustDemonstrated ability to establish effective working relationships with other Government Agencies and mission partnersDemonstrated ability to identify and assess multiple sources for classification determinationsSubstantive experience providing risk-managed security recommendations to program managers, in support of secure and successful mission accomplishmentAbility to handle complex security issuesAssist in the development of security policies and implementation procedures.Assist the government in the NRO Integrated Security Assessment Program (ISAP)Ability to analyze complex information, independently, take appropriate actions, and review and approve recommendations from othersAbility to prioritize competing requirements and tasks and managing long-term tasks as well as short-term obligationsDemonstrated experience working with industrial security staffsHave a working knowledge and be able to implement Intelligence Community Directives as well as NRO Directives and InstructionsAbility to effectively provide PSO guidance, assistance and trainingThorough knowledge of the NRO and/or the ICWorking knowledge of the NRO Security and Counterintelligence Manual (NSCM) and the National Industrial Security Program Oversight Manual (NISPOM) security policy and proceduresWorking knowledge of classification, control, marking, and dissemination principles and requirementsConduct document classification reviews to include FOIA and Pre-publication reviewsKnowledge of program protection methodologies and risk management principles as they relate to appropriately protecting and sharing NRO information, missions, operations, and assetsAbility to make compelling and articulate recommendations for Program Security decisions to Directorate and Office Directors of Security, Program Managers, and Directorate leadershipAbility to travel 25% CONUS and OCONUSWork hours 6:00pm – 2:00amPreferred Qualifications:Have outstanding interpersonal skills.Experience working with industrial security staffs.Effectively communicate one-on-one or in large groups.Able to interact and effectively communicate with peers and staff as well as senior government personnel.Be successful in a fast-paced environment where priorities change constantly and meet deadlines.Ability to think strategically and tacticallyAbility to work both independently and as part of a teamSecurity Requirements: Must possess an active TS/SCI with PolygraphPhysical requirements:Must be able to be in a stationary position more than 50% of the timeMust be able to communicate, converse, and exchange information with peers and senior personnelConstantly operates a computer and other office productivity machinery#LI-CW1

Cyber Security Engineer, Senior Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.ManTech is seeking a motivated, career and customer-orientedCyber Security Engineer, Senior to join our team in the Chantilly, VA.Responsibilities include, but are not limited to:Provide IA security requirements to update system requirement documentsCoordinate IA matters with other directorates and external partners as necessaryPerform, 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.Validate and verify system security requirements definitions, analysis, and establish system security designsValidate proposed software, hardware, firmware, and infrastructure comply with security guidelines, policies, and proceduresApply knowledge of IA policy, procedures, and workforce structure to design, develop, and implement secure networking, computing, and enclave environments.Toolkits, SEIMs, LogRhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e. g. SE Linux extensions to RHEL, PitBull, and Windows), Oracle/MS SQL database security, and Apache/IIS Web server security.Support security planning, assessment, risk analysis, and risk management.Identify overall security requirements for the proper handling of Government data.Contribute to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations.Review certification and accreditation (C&A) documentation, providing feedback on completeness and compliance of its content.Apply system security engineering expertise in one or more of the following: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification, authentication, and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing.Support security authorization activities in compliance with Information System Certification and Accreditation Process (ICD 503), the NIST Risk Management Framework (RMF) process, and prescribed ICs business processes for security engineering.Assist architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of government security policy and enterprise solutions.Support the building of security architectures.Assess and mitigate enterprise, system, and component security threats/risks throughout the program life cycle.Support the Government in the enforcement of the design and implementation of trusted relationships among external systems and architectures.Basic Qualifications:HS Diploma and 8+ years related experience OR Bachelor's Degree and 4+ years of experience2+ years’ experience as an ISSO/ ISSE on programs and contracts of similar scope, type, and complexity required.Experience with: Tenable, Perl, STIG, and ACASCertifications Required:Security+ within 6 months of hireSecurity Clearance Requirements:TS/SCI w/PolygraphPhysical Requirements:Must be able to remain in a stationary position 50%Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printerThe person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situationsAbility to work in a fast-paced environment.#GL-SOC

ManTech is seeking a motivated, career and customer-oriented Cyber Security Analyst to join our team in the Chantilly, VA location.Responsibilities:Providing technical support for security software and hardware.Ensuring compliance with all security policies and procedures.Participating in threat hunting and threat detection.Analyzing malicious behavior.Developing and communicating technical security reports.Advising management of security risks.Perform required Continuous Monitoring tasks.Basic Qualifications:Bachelor’s Degree and 2+ years of experience in Cybersecurity, Information Technology, Computer Science, or other relevant technical field; experience can be any combination professional experience, internships, lab work or coursework.Experience with one or more of the following: SIEM systems, network security tools, log analysis tools, cybersecurity principles, incident detection, analysis, and response methodologies, operating systems, network protocols, and security technologies.DoD 8570 IAT-II required.Preferred Qualifications:Knowledge of system vulnerability analysis and security testing.Excellent verbal and written communication skills.Strong analytical skills.Excellent problem-solving skillsAbility to manage multiple projects.Excellent multitasking skills.Ability to work independently.Ability to work well in a team environment.Ability to work under pressure.Experience in Splunk SPL searches and dashboarding.Security Clearance Requirements:Top-Secret/SCIPhysical Requirements:Sedentary Position