Information Systems Security Engineer SME
$155k - $170kECS Federal
Job DescriptionEverfroth ECS is seeking an experienced Information Systems Security Engineer SME to support a mission-critical federal cybersecurity programs in Washington, DC. The selected candidate will serve as a senior cybersecurity engineering expert supporting Security Assessment and Authorization, Risk Management Framework execution, cloud security, technical control implementation, assessment readiness, continuous monitoring, vulnerability remediation, audit support, and risk-informed authorization activities. This role is ideal for a senior cybersecurity professional who can operate at both the strategic and technical levels and who is passionate in leading security engineering efforts, mentoring cybersecurity personnel, advising stakeholders, improving authorization quality, and translating complex technical risks into clear, actionable recommendations. Please Note: This position is contingent upon contract award.Key responsibilities include:Lead and support full lifecycle RMF and Security Assessment and Authorization activities for federal information systems.Provide senior technical guidance to system owners, ISSOs, ISSMs, engineering teams, program leadership, and authorization stakeholders.Advise on system categorization, security control selection and tailoring, control implementation, assessment readiness, risk analysis, and authorization package quality.Review and strengthen RMF documentation, including System Security Plans, control implementation descriptions, risk assessments, security test plans, assessment results, POA&Ms, inventories, network diagrams, data flow diagrams, and continuous monitoring artifacts.Evaluate technical, operational, and management controls to determine whether safeguards are implemented correctly, operating as intended, and supported by complete evidence.Identify technical control gaps and develop remediation recommendations that are practical, risk-informed, and aligned to federal cybersecurity standards.Support cloud security engineering activities for systems using AWS, Azure, Google Cloud, or hybrid environments.Provide technical input for vulnerability remediation, patch compliance, POA&M tracking, emergency directive response, audit readiness, and corrective action planning.Support security impact analysis for proposed technical changes, including architecture updates, system integrations, cloud services, network changes, and control modifications.Develop or improve templates, checklists, SOPs, evidence standards, dashboards, and repeatable processes that improve quality, consistency, and efficiency.Track and communicate risks, findings, action items, assessment status, remediation progress, and improvement opportunities to stakeholders and leadership.Maintain current knowledge of RMF, NIST, CNSS, FISMA, cloud security, and federal cybersecurity best practices.Salary Range: $155,000-$170,000General Description of BenefitsJob RequirementsActive Top Secret clearance with SCI eligibility.U.S. citizenship.10+ years of experience in secure design, analysis, and testing of information security systems and products.10+ years of experience applying cybersecurity methods, standards, and approaches to ensure baseline security safeguards are properly implemented and documented.10+ years of experience creating or updating security test plans to detect, assess, and mitigate risk to information systems.CISSP or CEH required.Experience supporting RMF, ATO, SAA, continuous monitoring, POA&M management, vulnerability remediation, security assessment, and audit readiness activities.Experience developing, reviewing, or improving federal cybersecurity documentation and authorization artifacts.Knowledge of NIST SP 800-53, NIST SP 800-53A, FIPS 199, FIPS 200, CNSS guidance, FISMA, and federal information security requirements.Ability to assess technical security evidence and provide risk-based recommendations to technical and non-technical stakeholders.Strong written and verbal communication skills.Ability to lead teams, mentor personnel, coordinate across multiple stakeholders, and manage complex cybersecurity tasks in a high-accountability environment.Job DetailsJob Type: Full-timeCategory: CybersecuritySalaried: Salaried
$175k - $190k
Job DescriptionEverforth ECS is seeking an Information System Security Engineer SME to work in our Washington, DC office. Please Note: This position is contingent upon contract award.Everforth ECS is seeking an experienced Information System Security Engineer (ISSE) -...SuggestedContract workWork at office$170k - $210k
GovCIO is currently hiring for a SME Information Systems Security Engineer to lead cybersecurity, compliance, and risk management activities supporting the U.S. Coast Guard's (USCG) Digital Workplace Product Line (DWPL). This role provides principal-level engineering, strategic...SuggestedCurrently hiring$99k - $225k
Information System Security Engineer The Opportunity: You will lead cybersecurity engineering efforts across the full system lifecycle for DoD collateral, SAP, and SCI environments. This role ensures security requirements are integrated into system architectures, designs...SuggestedFull timeContract workPart timeWork at officeLocal areaRemote work- ...MANTECH seeks a motivated, career and customer-oriented Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA, Quantico, VA, or Huntsville, AL. Responsibilities include, but are not limited to: Identify information...SuggestedWork at office
- ...TLA is seeking an Information System Security Engineer (ISSE). This is a critical role responsible for designing, developing, implementing, and maintaining secure information systems and networks. The ISSE ensures that security requirements are effectively integrated...SuggestedFull time
$130k - $145k
...SECURITY CLEARANCE REQUIREMENT: TS, WITH SCI ELIGIBILITY ***POSITION REQUIRES US CITIZENSHIP*** Position Title: Information System Security Engineer (ISSE) Mid Location: Washington DC (on-site) Salary Range: $130K - $145K based on experience Position Description...Full time- ...Kadiak, LLC, a Koniag Government Services company, is seeking an Information Systems Security Engineer (ISSE) with Top Secret security clearance to support Kadiak in Washington, DC. This position is for a Future New Business Opportunity. We offer competitive compensation...Work experience placementWork at officeLocal areaFlexible hours
- ...Information Systems Security Engineer Zetier seeks an Information Systems Security Engineer (ISSE) with expertise in cloud automation, Infrastructure-as-Code, virtualization, and orchestration. You'll support, build, and secure cloud-based environments through robust...
$87.1k - $157.45k
...Description Leidos has a career opportunity for a Information Systems Security Engineer to support the Air Force National Capital Region IT Services program. The AFNCR IT Services program provides support services for information systems for Headquarters Air Force...Work at officeLocal areaImmediate startWorldwide- ...Information Systems Solutions (ISS) is looking for a mid-level ISSE supporting the Office of Naval Intelligence. The Information Systems Security Engineer (ISSE) is responsible for engineering, implementing, and maintaining security solutions across information systems...Work at office
$160k - $200k
...Job Description Description SAIC is seeking a highly motivated, detail-oriented, and experienced Information Systems Security Engineer (ISSE) to join our lead systems integrator team in Arlington, Virginia. The ISSE will be responsible for designing and...$135k - $178k
...Information Systems Security Engineer Data Intelligence, LLC is seeking an experienced Information Systems Security Engineer (ISSE) to support one of our premier federal law enforcement clients. The ISSE will lead and oversee Risk Management Framework (RMF) activities...Work at office$135k - $216k
...Information Systems Security Engineer (ISSE) Job Locations US-VA-Herndon | US-MD-Bowie Requisition ID 2026-167992 Position Category Information Technology Clearance Public Trust Responsibilities Join Peraton in advancing...Contract workFor subcontractorShift work- ...Investigation's Criminal Justice Information Services Division's Headquarters. Founded in 2007 by an Engineer-by-trade, Fusion Technology... ...(on-site) Who are you? Security-cleared Professional: You have... ...: Certified Information Systems Security Professional (CISSP)...Temporary workWork at office
- ...This job is with Encode, Inc a fully owned subsidiary of Lancesoft Title: Information System Security Engineer Location: Washington, DC Type: Fulltime We are looking for an Information System Security Engineer to provide support for the FBI. Information...Full timeFlexible hours
- ...Information Systems Security Engineer (ISSE) Dobbs Defense Solutions is seeking an experienced Information Systems Security Engineer (ISSE) to support a federal customer in Washington, DC. The ISSE will be responsible for designing, implementing, and maintaining secure...Local area
$71.2k - $166.1k
...Job Description The Senior Federal Information Systems Security Engineer (ISSE) serves as a technical integrator responsible for ensuring that system-to-system connections across federal boundaries are properly documented, approved, and compliant with all required cybersecurity...Contract workTemporary workWork experience placementRelocationFlexible hours$164.38k - $212.75k
...Management Job Qualifications: Skills: Information Assurance, Information System Security, Risk Assessments Certifications: None Experience... ...into opportunity as a Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE) with...Temporary workFor contractorsInterim roleImmediate startRemote workWorldwideFlexible hours- ...provides Software, AI/ML, and Cloud Engineering Solutions for our Department of Defense... ...Federal Civilian agencies. We bring SME-level expertise and over five decades... ...our country. We are looking for an Information Systems Security Engineer to support our client in defining...Contract work
$170k - $190k
...analysis solutions to provide decision-ready information to Command and Control (C2) and Decision Support Systems. We have demonstrated expertise in the... ...We are seeking a Subject Matter Expert (SME)–level Lead Security Engineer to lead application security across a...Contract workTemporary workWork at officeFlexible hours- ...to make faster, better-informed decisions using trusted... ...seeking an experienced SME Cyber Incident Response... ...alongside government partners, engineers, and other industry... ...real-world national security outcomes. Primary... ...enterprise incident tracking system and established...
- ...Overview VTG is seeking a highly skilled Information Systems Security Engineer (ISSE) to design, implement, and maintain security controls across enterprise systems and networks. This role ensures systems are compliant with security requirements while supporting mission...
$225k - $240k
...Expert ISSE $225K to $240K McLean, VA Position Overview The Information Systems Security Engineer (ISSE) supports the client and program team in defining, implementing, and maintaining security requirements across the system lifecycle. This role advises...- ...Information Systems Security Engineer (ISSE) Location: Springfield, VA, US Job ID: ATR 17942 Job Description Job Title: Information Systems Security Engineer (ISSE) Location: Springfield, VA Eligibility: Candidate must possess an active TS/SCI Clearance...
$50k - $290k
...Reston, VA. Our capabilities include Software Development, Engineering & IT, Data Science, Cyber Enablement, Logistics, and... ...country and around the globe. We are looking for an Information Systems Security Engineer (ISSE) to join our high-performing team in either...Contract workWork experience placement- ...Location: Tysons, Virginia Type: Contract Job #3872 Title: Information Systems Security Engineer Location: Tysons, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer...Contract work
- ...Job Description Job Description Description: We are seeking a highly skilled and mission-driven Information Systems Security Engineer (ISSE) to support advanced cyber engineering activities for NNSA HQ OCIO Special Technologies. The ISSE will operate within an EOS...Contract workFor contractors
- ...Job Description Job Description Position: Information Systems Security Engineer (ISSE), Level III Location: Hanover, MD - onsite only - No remote work offered Security Requirement: Active TS/SCI clearance with full scope polygraph Certification Requirement...Remote work
$104k - $166k
ResponsibilitiesPeraton is seeking an Information Systems Security Engineer (ISSE) to support our customer onsite in Washington D.C. Responsibilities include:Design, implement, and maintain enterprise security architectures aligned with NIST RMF, DoD STIGs, CIS benchmarks...Contract workShift work- Information Systems Security Engineer (ISSE), Journeyman Position Description CGI Federal has an exciting opportunity for an ISSE within our Intel sector advancing the national security mission through cutting edge technology. You must have a passion for keeping...Local area
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