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$176k - $282k
ResponsibilitiesPeraton is seeking an Information Systems Security Engineer - Subject Matter Expert (SME)/Cloud-based to support its Federal Strategic Cyber programs.Location: National Capital Region (NCR):In this role, you will: Lead, mentor, and supervise a team of contractor...SuggestedContract workTemporary workFor contractorsWork at officeShift work$180k - $230k
...As a Information System Security Engineer (ISSE) you will play a critical role in ensuring the confidentiality, integrity, and availability of information systems across their life-cycle. The ISSE conducts comprehensive information system security engineering activities...SuggestedFull timeContract workWork experience placement- ...Open Systems Technologies Corporation is seeking a Senior Information System Security Engineer to provide support for the FBI. Information System Security Engineer (ISSE) activities shall include at a minimum: Identify information protection needs for an IS and Network...SuggestedFull time
- OverviewAbacus Technology is seeking a Cyber Security Engineering SME to provide security and test and evaluation support for the RDT&E Engineering... ...is a full-time position. ResponsibilitiesServe as the Information System Security Manager (ISSM) and act as technical advisors to...SuggestedFull time
- Senior Cloud Information Systems Security Engineer (ISSE) Mantech seeks a motivated, career- and mission-focused Senior Cloud Information Systems Security... ...include but are not limited to: Lead, mentor, act as a SME (Subject Matter Expert) and supervise a team of contractor...For contractorsWork at office
$165k - $200k
OverviewAMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE) to support Red Hate Enterprise Linux systems in a High Performance Computing (HPC) environment in Arlington, VA.This role includes...For contractorsWork experience placementRelocation package$150k - $185k
...At the core is Accrete’s Knowledge Engine, a dynamic context graph that captures... ...questions about them. From national security to commercial operations, Accrete delivers... ...expert judgement. The Role As an Information Systems Security Engineer (ISSE) Mid, you will...Full timeImmediate start- ...referral program, and educational assistance. Additional details can be found on our website at: Position Title: DHS Information Systems Security Engineer Senior Location : NCR Clearance : TS/SCI OneZero Solutions is on contract to provide division-wide...Full timeContract workWork at office
- ...Job Description Job Description Security (Cloud a plus) Engineer (ISSE)Work Description:- Lead, mentor... ...of the RMF lifecycle for FBI IT systems.- Oversee and coordinate activities... ...categorization efforts to ensure all information systems are appropriately classified...For contractorsWork at office
$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- ...time off ~ Training & development ~ Tuition assistance ~ Vision insurance ~ Wellness resources Position: Information Systems Security Engineer (ISSE), Level III Location: Hanover, MD - onsite only - No remote work offered Security Requirement: Active TS...Remote workFlexible hours
$110k - $140k
...Title:Information System Security Engineer (ISSE)Belong. Connect. Grow. with KBR!KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position...Full timeTemporary workLocal areaRelocation package$70 - $75 per hour
Washington, District Of ColumbiaHybridContract$70/hr - $75/hrA growing cybersecurity firm is seeking an Information Systems Security Engineer to support the security of federal cloud and enterprise systems. This is a hybrid role based in Washington, DC, focused on cloud...Full timeTemporary workFlexible hours3 days per week- ...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
- ...solutions to complex national security issues. With over 50 years of... ...Team under SPA’s Information Technology Department establishes... ...architecture across SPA's information systems. The team manages cyber... ...Information Systems Security Engineer (ISSE) for multiple classified...Contract workWork experience placementWork at officeImmediate startFlexible hours
- ...eight (8) years experience • Responsible for the secure design, analysis, and test of information security systems and products. • Ensure technical... ...and mitigating risk to information systems. engineer and perform tests and test plans to satisfy audits...
- Job Title: Information System Security Engineering (ISSE) Location(s): Quantico, VAHours: Regular Full-TimeClearance RequirementsThis position requires a current and active TS/SCI with Poly at the time of application.What you will be doing:The ISSE shall provide CI and...Full timeFor contractorsWork at officeFlexible hours
$160k - $210k
MTSI is seeking a Information Systems Security Engineer (ISSE) whose primary function will be to serve as the Program Office’s information security professional responsible for managing all aspects of an organization's information security system, including researching,...Contract workWork at office- ...Job Description Job Description Transform technology into opportunity as a Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE). A career in enterprise IT means connecting and enhancing the systems that matter most. You'll be at the forefront...Temporary workFor contractorsInterim roleRelocation package
$91.6k - $153.8k
Information Systems Security Engineer (ISSE) Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges...Hourly payContract workTemporary workWork experience placementWork at officeLocal areaRemote work$160k - $170k
Overview Job Summary Galapagos Federal Systems LLC is looking for an enthusiastic, well-qualified individual to fill the Information Systems Security Engineer position. This role offers the opportunity to work with a diverse and talented group of individuals committed...Flexible hours$165k
Senior Information Systems Security Engineer Remote Up to $165,000/ year MANTECH seeks a motivated, career and customer-oriented Senior Information Systems Security Engineer (ISSE) to join our team in Washington, D.C. This is an onsite position. The Information Systems...Work at officeRemote work- ...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
$120k - $140k
ECS is seeking an experienced Senior Information Systems Security Engineer to support a mission-critical federal cybersecurity program in the National Capital Region or Huntsville, Alabama . This role provides senior-level cybersecurity engineering support for Security...Contract work- Senior Information System Security Engineer (ISSE) Vista Global Solutions (VGS) is seeking a Senior Information System Security Engineer (ISSE) to support the migration and enterprise implementation of Microsoft Defender across Windows, macOS, and Linux environments at...Temporary workFlexible hours
$135k
...is not awarded, this position may not be filled. 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...Contract workWork experience placementWork at officeLocal areaFlexible hours$106.3k - $221.1k
AFS is seeking a highly motivated, Mid-level Information System Security Engineer (ISSE) this role works with the portfolio they are tied to and internal CISO organization, this role is pivotal in bridging the gap between business objectives and cybersecurity strategies...Live inWork at officeLocal area- ...educational assistance. Additional details are available on our website: Position Title : Subject Matter Expert III - Information Systems Security Engineer Location : Arlington, VA or Mechanicsburg, PA Clearance : Secret Job Summary: The Subject Matter...Full timeLocal area
- ...convergence of cybersecurity, intelligence, analytics, and systems engineering. We invite you to join the team where you can build, innovate, and secure your career. Sentar is seeking a Subject Matter Expert III - Information Systems Security Engineer in Arlington, VA or...Contract workTemporary workFor contractorsFlexible hours
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