ManTech
Stafford, Virginia
MANTECH seeks a motivated, career-oriented SOFTWARE & SYSTEMS ENGINEER to join our team supporting the Marine Corps in STAFFORD, VA. This position will ensure our technical initiatives are executed optimally utilizing modern DevSecOps, programming, and Systems Engineering principles as well as strong project management discipline to tackle operational problems by creating viable technical solutions for transition through research, development, testing & evaluation. Responsibilities include but are not limited to: Provide senior-level expertise in the research, design, and deployment of complex hardware/software solutions, leading prototyping initiatives and maintaining comprehensive architecture documentation and runbooks. Develop, review, and execute highly detailed engineering artifacts (e.g., SEPs, ICDs) and lead Systems Engineering Technical Review (SETR) milestones from preliminary design through software acceptance. Drive the assessment and integration of transformative technical capabilities across ground, air, maritime, and space platforms within both tactical and enterprise information environments. Design and execute comprehensive Test and Evaluation Strategies (TES/TEMP), conducting rigorous functional, integration, regression, and performance testing to validate system requirements. Define and support rigorous Configuration, Change, and Release Management processes (including Engineering Change Proposals) while leading multi-phase risk management assessments. Oversee operational security compliance (DISA STIGs, GPOs, ACAS), perform system monitoring and root-cause analysis, and provide expert Tier 3 troubleshooting for complex Linux-related issues. Lead coordination efforts with vendors, technical staff, and cross-functional stakeholders across multiple organizations to ensure the timely and successful delivery of capabilities. Minimum Qualifications: Bachelor's degree in engineering, computer engineering, information technology, systems engineering, or a related technical discipline with 5+ years or relevant experience. Must hold an active DoD 8570/ DoDi 8140 IAT Level III certification (e.g., CISSP). Extensive experience directing technical teams through the entire SDLC for complex enterprise or tactical operational problems, providing hands-on engineering down to the component, subcomponent, and circuit level; proven background supporting the Marine Corps Information Environment Enterprise (or similar DoD environments) while adhering to ISO/IEC/IEEE, Military (MIL-STD), and Federal (FED-STD) standards, and managing lifecycle testing (unit, integration, system, acceptance) with rigorous test standards, scripts, and plans. Proficiency designing, deploying, hardening, patching, and maintaining RHEL server infrastructures in production environments, with in-depth technical knowledge of SELinux, fapolicy, systemd, firewall configuration, kernel tuning, and performance optimization to troubleshoot complex system and application issues. Experience leveraging Red Hat Satellite, Ansible, and Automation Platform for configuration management alongside virtualization/containerization (KVM, Podman, Docker, OpenShift), CI/CD pipelines, Git, DevOps workflows, and foundational networking (TCP/IP, DNS, DHCP, routing, firewalls, VLANs), combined with hands-on expertise implementing secure protocols, PKI concepts (CA, CRLs, OCSP, key generation/lifecycle management using OpenSSL and Keytool), and RHEL identity tooling to integrate systems with IdM/FreeIPA, LDAP, Active Directory, and Multi-Factor Authentication (MFA). Self-driven analytical thinker capable of managing priorities in fast-paced environments and delivering technical briefings to senior government organizations (including Officer, Enlisted, and Civilian personnel); highly proficient with the Microsoft Family of Software and Tools (Office, Visio, SharePoint, Project) alongside development/task management capabilities like Jira and Confluence. Preferred Qualifications: Direct experience engineering systems/software in the R&D phase aligning with Technology Readiness Levels (TRL) 4 through 7; deep understanding of UAF and DoDAF artifacts, Model-Based Systems Engineering (MBSE), and lifecycle management to design secure, scalable, and redundant architectures. INCOSE CSEP/ESEP certification is highly desirable. Proven experience utilizing ITIL, ITSM, or similar maturity models within Agile Scaled Environments (SAFe); strong familiarity with Agile software coding principles and possession of professional leadership certifications such as Project Management Professional (PMP), Certified Scrum Master (CSM), or Lean Six Sigma. Familiarity with the Marine Corps Operational Test and Evaluation Activity (MCOTEA), including the MCOTEA Operational Test & Evaluation Manual (6th Edition); experience planning Field User Evaluations and Joint Service Exercise events incorporating Electronic Warfare and Intelligence collection platforms under the Risk Management Framework (RMF). Experience designing, modernizing, and maintaining hybrid cloud environments (AWS, Azure, or private cloud) with the demonstrated ability to seamlessly integrate RHEL and Windows systems with enterprise applications, middleware, and cloud services. Strong proficiency with Bash and Python scripting alongside API interactions (REST, JSON, XML) to drive system integration and automation; familiarity with foundational website development, including CSS and web server setup, configuration, and integration. Clearance Requirements: Must have current and active TS/SCI (or SCI eligible) security clearance with the ability to obtain and maintain a CI Poly. Physical Requirements: Physically capable of supporting field exercises, including lifting up to 50 lbs., traversing rugged terrain, and traveling via military tactical vehicles, ships, and aircraft. Must be able to remain in a stationary/ desk position 50% of the time, occasionally and communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve clearly delivering briefings/ presentations.
MANTECH seeks a motivated, career-oriented SOFTWARE & SYSTEMS ENGINEER to join our team supporting the Marine Corps in STAFFORD, VA. This position will ensure our technical initiatives are executed optimally utilizing modern DevSecOps, programming, and Systems Engineering principles as well as strong project management discipline to tackle operational problems by creating viable technical solutions for transition through research, development, testing & evaluation. Responsibilities include but are not limited to: Provide senior-level expertise in the research, design, and deployment of complex hardware/software solutions, leading prototyping initiatives and maintaining comprehensive architecture documentation and runbooks. Develop, review, and execute highly detailed engineering artifacts (e.g., SEPs, ICDs) and lead Systems Engineering Technical Review (SETR) milestones from preliminary design through software acceptance. Drive the assessment and integration of transformative technical capabilities across ground, air, maritime, and space platforms within both tactical and enterprise information environments. Design and execute comprehensive Test and Evaluation Strategies (TES/TEMP), conducting rigorous functional, integration, regression, and performance testing to validate system requirements. Define and support rigorous Configuration, Change, and Release Management processes (including Engineering Change Proposals) while leading multi-phase risk management assessments. Oversee operational security compliance (DISA STIGs, GPOs, ACAS), perform system monitoring and root-cause analysis, and provide expert Tier 3 troubleshooting for complex Linux-related issues. Lead coordination efforts with vendors, technical staff, and cross-functional stakeholders across multiple organizations to ensure the timely and successful delivery of capabilities. Minimum Qualifications: Bachelor's degree in engineering, computer engineering, information technology, systems engineering, or a related technical discipline with 5+ years or relevant experience. Must hold an active DoD 8570/ DoDi 8140 IAT Level III certification (e.g., CISSP). Extensive experience directing technical teams through the entire SDLC for complex enterprise or tactical operational problems, providing hands-on engineering down to the component, subcomponent, and circuit level; proven background supporting the Marine Corps Information Environment Enterprise (or similar DoD environments) while adhering to ISO/IEC/IEEE, Military (MIL-STD), and Federal (FED-STD) standards, and managing lifecycle testing (unit, integration, system, acceptance) with rigorous test standards, scripts, and plans. Proficiency designing, deploying, hardening, patching, and maintaining RHEL server infrastructures in production environments, with in-depth technical knowledge of SELinux, fapolicy, systemd, firewall configuration, kernel tuning, and performance optimization to troubleshoot complex system and application issues. Experience leveraging Red Hat Satellite, Ansible, and Automation Platform for configuration management alongside virtualization/containerization (KVM, Podman, Docker, OpenShift), CI/CD pipelines, Git, DevOps workflows, and foundational networking (TCP/IP, DNS, DHCP, routing, firewalls, VLANs), combined with hands-on expertise implementing secure protocols, PKI concepts (CA, CRLs, OCSP, key generation/lifecycle management using OpenSSL and Keytool), and RHEL identity tooling to integrate systems with IdM/FreeIPA, LDAP, Active Directory, and Multi-Factor Authentication (MFA). Self-driven analytical thinker capable of managing priorities in fast-paced environments and delivering technical briefings to senior government organizations (including Officer, Enlisted, and Civilian personnel); highly proficient with the Microsoft Family of Software and Tools (Office, Visio, SharePoint, Project) alongside development/task management capabilities like Jira and Confluence. Preferred Qualifications: Direct experience engineering systems/software in the R&D phase aligning with Technology Readiness Levels (TRL) 4 through 7; deep understanding of UAF and DoDAF artifacts, Model-Based Systems Engineering (MBSE), and lifecycle management to design secure, scalable, and redundant architectures. INCOSE CSEP/ESEP certification is highly desirable. Proven experience utilizing ITIL, ITSM, or similar maturity models within Agile Scaled Environments (SAFe); strong familiarity with Agile software coding principles and possession of professional leadership certifications such as Project Management Professional (PMP), Certified Scrum Master (CSM), or Lean Six Sigma. Familiarity with the Marine Corps Operational Test and Evaluation Activity (MCOTEA), including the MCOTEA Operational Test & Evaluation Manual (6th Edition); experience planning Field User Evaluations and Joint Service Exercise events incorporating Electronic Warfare and Intelligence collection platforms under the Risk Management Framework (RMF). Experience designing, modernizing, and maintaining hybrid cloud environments (AWS, Azure, or private cloud) with the demonstrated ability to seamlessly integrate RHEL and Windows systems with enterprise applications, middleware, and cloud services. Strong proficiency with Bash and Python scripting alongside API interactions (REST, JSON, XML) to drive system integration and automation; familiarity with foundational website development, including CSS and web server setup, configuration, and integration. Clearance Requirements: Must have current and active TS/SCI (or SCI eligible) security clearance with the ability to obtain and maintain a CI Poly. Physical Requirements: Physically capable of supporting field exercises, including lifting up to 50 lbs., traversing rugged terrain, and traveling via military tactical vehicles, ships, and aircraft. Must be able to remain in a stationary/ desk position 50% of the time, occasionally and communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve clearly delivering briefings/ presentations.
ManTech
Chantilly, Virginia
MANTECH seeks a motivated, career and customer-oriented Senior Systems Engineer to join our team in Chantilly, VA. This is an onsite position. Responsibilities include but are not limited to: Provide Tier III IT Systems support across enterprise technologies, including VMware vCenter, Horizon View, Site Recovery Manager, HP Blade Servers, HP SANs, HPAC Secure Printing, Active Directory, Group Policies, Certificate Services, DHCP, DNS, and Microsoft Windows Operating Systems. Diagnose and resolve complex performance, security, and technical challenges across supported infrastructure platforms. Perform requirements analysis, gathering, and integration for core system platforms while collaborating on project teams to package and deploy production releases. Author Standard Operating Procedures (SOPs) for repetitive tasks and participate in ITIL Service Lifecycle processes, including submitting Change Requests. Investigate and resolve operational issues in coordination with technical personnel, while providing mentorship and guidance to junior Systems Engineers. Support system maintenance and unplanned service outages after normal duty hours (nights and weekends) on occasion. Perform up to 10% local travel within the DC Metro area as required by program requirements. Minimum Qualifications: Bachelor's degree and 5+ years of systems engineering experience, or an Associates degree with 8 years of systems engineering experience, or a High School diploma with 11 years of systems engineering experience can be substituted for a bachelor's degree DoD 8570 IAT Level II Certification, ex., Security+ IAT Level III certification ex. SecurityX, CASP+ required within 6 months of hire DoD 8570 Computing Environment Certification required within 6 months of hire, ex., MCSA, VCP, or equivalent Experience with Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; basic networking including DHCP/TCPIP Experience with Microsoft Windows Systems, HP SANs, or VMware products Preferred Qualifications: Microsoft Windows systems experience including DNS, Group Policy, and PKI; deploying workstation images and Thin/Zero clients; and Administering vSphere, Horizon View, data backup, and antivirus software Experience applying security best practices from DISA and/or vendors Experience using a Service Desk ticketing system, such as Remedy or ServiceNow ITIL Foundations certification Scripting experience Clearance Requirements: Must have a current or active TS/SCI and be willing and able to obtain a polygraph Physical Requirements: The person in this position 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.
MANTECH seeks a motivated, career and customer-oriented Senior Systems Engineer to join our team in Chantilly, VA. This is an onsite position. Responsibilities include but are not limited to: Provide Tier III IT Systems support across enterprise technologies, including VMware vCenter, Horizon View, Site Recovery Manager, HP Blade Servers, HP SANs, HPAC Secure Printing, Active Directory, Group Policies, Certificate Services, DHCP, DNS, and Microsoft Windows Operating Systems. Diagnose and resolve complex performance, security, and technical challenges across supported infrastructure platforms. Perform requirements analysis, gathering, and integration for core system platforms while collaborating on project teams to package and deploy production releases. Author Standard Operating Procedures (SOPs) for repetitive tasks and participate in ITIL Service Lifecycle processes, including submitting Change Requests. Investigate and resolve operational issues in coordination with technical personnel, while providing mentorship and guidance to junior Systems Engineers. Support system maintenance and unplanned service outages after normal duty hours (nights and weekends) on occasion. Perform up to 10% local travel within the DC Metro area as required by program requirements. Minimum Qualifications: Bachelor's degree and 5+ years of systems engineering experience, or an Associates degree with 8 years of systems engineering experience, or a High School diploma with 11 years of systems engineering experience can be substituted for a bachelor's degree DoD 8570 IAT Level II Certification, ex., Security+ IAT Level III certification ex. SecurityX, CASP+ required within 6 months of hire DoD 8570 Computing Environment Certification required within 6 months of hire, ex., MCSA, VCP, or equivalent Experience with Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; basic networking including DHCP/TCPIP Experience with Microsoft Windows Systems, HP SANs, or VMware products Preferred Qualifications: Microsoft Windows systems experience including DNS, Group Policy, and PKI; deploying workstation images and Thin/Zero clients; and Administering vSphere, Horizon View, data backup, and antivirus software Experience applying security best practices from DISA and/or vendors Experience using a Service Desk ticketing system, such as Remedy or ServiceNow ITIL Foundations certification Scripting experience Clearance Requirements: Must have a current or active TS/SCI and be willing and able to obtain a polygraph Physical Requirements: The person in this position 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.
ManTech
Arlington, Virginia
MANTECH seeks a motivated, career and customer-oriented Senior Systems Analyst to join our team in Arlington, VA. The position is onsite. Responsibilities include but are not limited to: Providing Tier II IT Systems support on a wide range of technologies, including VMware vCenter, Horizon View, Site Recovery Manager, SolarWinds, Cisco Catalyst Center (DNAC), GEMOne, HP SANs, Certificate Services, DHCP, DNS, Active Directory, Group Policies and Microsoft Windows Operating Systems Diagnosing and resolving the performance, security, and/or technical challenges related to the platforms listed above Writing Standard Operating Procedures (SOPs) to accomplish repetitive tasks Participating in processes throughout all phases of the ITIL Service Lifecycle, including submitting Change Requests Performing requirements analysis, requirements gathering, and integration for all platforms listed above Providing direction and guidance to less-experienced Systems Engineers Investigating and resolving operational problems in conjunction with other engineering and technical personnel Working on project teams responsible for engineering and packaging releases to integrate within the customer's production IT environment Ability to travel locally up to 10% Minimum Qualifications: Bachelor's degree and 5+ years of Systems Support and/or Administration experience; an Associate's degree with 7+ years or a High School Diploma with 11+ years of Systems Support/Administration experience may be accepted in lieu of degree DoD 8570 IAT Level II/8140 level expert Certification required, ex, Security+ DoD 8570 computing environment certification required within 6 months of hire, ex., MCSA, VCP, or equivalent Experience with Microsoft Windows Systems, specifically: Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; administering DNS, Group Policy, and PKI; administering vSphere, Horizon View, data backup, and antivirus software; basic networking including DHCP/TCPIP Experience with CISCO networking devices and TACLANE encryption devices Working knowledge of VMWare, and CISCO systems Preferred Qualifications: Experience applying security best practices from DISA and/or vendors Strong background with the Microsoft Office suite Basic networking expertise Experience using a Service Desk ticketing system, such as Remedy or ServiceNow ITIL Foundations certification Scripting experience or willingness to learn Clearance Requirements: Must have a current and active TS/SCI clearance, and be willing and able to obtain a polygraph Physical Requirements: The person in this position 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.
MANTECH seeks a motivated, career and customer-oriented Senior Systems Analyst to join our team in Arlington, VA. The position is onsite. Responsibilities include but are not limited to: Providing Tier II IT Systems support on a wide range of technologies, including VMware vCenter, Horizon View, Site Recovery Manager, SolarWinds, Cisco Catalyst Center (DNAC), GEMOne, HP SANs, Certificate Services, DHCP, DNS, Active Directory, Group Policies and Microsoft Windows Operating Systems Diagnosing and resolving the performance, security, and/or technical challenges related to the platforms listed above Writing Standard Operating Procedures (SOPs) to accomplish repetitive tasks Participating in processes throughout all phases of the ITIL Service Lifecycle, including submitting Change Requests Performing requirements analysis, requirements gathering, and integration for all platforms listed above Providing direction and guidance to less-experienced Systems Engineers Investigating and resolving operational problems in conjunction with other engineering and technical personnel Working on project teams responsible for engineering and packaging releases to integrate within the customer's production IT environment Ability to travel locally up to 10% Minimum Qualifications: Bachelor's degree and 5+ years of Systems Support and/or Administration experience; an Associate's degree with 7+ years or a High School Diploma with 11+ years of Systems Support/Administration experience may be accepted in lieu of degree DoD 8570 IAT Level II/8140 level expert Certification required, ex, Security+ DoD 8570 computing environment certification required within 6 months of hire, ex., MCSA, VCP, or equivalent Experience with Microsoft Windows Systems, specifically: Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; administering DNS, Group Policy, and PKI; administering vSphere, Horizon View, data backup, and antivirus software; basic networking including DHCP/TCPIP Experience with CISCO networking devices and TACLANE encryption devices Working knowledge of VMWare, and CISCO systems Preferred Qualifications: Experience applying security best practices from DISA and/or vendors Strong background with the Microsoft Office suite Basic networking expertise Experience using a Service Desk ticketing system, such as Remedy or ServiceNow ITIL Foundations certification Scripting experience or willingness to learn Clearance Requirements: Must have a current and active TS/SCI clearance, and be willing and able to obtain a polygraph Physical Requirements: The person in this position 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.
