Cyber Security SME
Apex Systems Inc
Job#: 3033203 Job Description: Sr Cyber Security Engineer (SME) Candidates must be able to obtain and/or maintain a Department of Defense Top Secret Security Clearance as a condition and continuation of employment Description A leading systems integrator is seeking a highly qualified Cyber Security Subject Matter Expert (SME) to serve as the Chief Cyber Security Engineer supporting a large-scale digital infrastructure network design and deployment program for the U.S. Department of Defense. This individual will act as the technical authority and cybersecurity strategist, responsible for ensuring compliance and securing all aspects of the network architecture. The role involves designing and implementing robust, scalable, and compliant cybersecurity solutions to protect sensitive data, defend against evolving cyber threats, and ensure the integrity, availability, and resilience of mission‑critical network infrastructure. Responsibilities include integrating advanced security technologies into network designs, establishing policies for access control and data protection, and ensuring alignment with DoD, NIST, and other applicable cybersecurity frameworks. The Chief Cyber Security Engineer will also serve as a trusted advisor, collaborating closely with cross‑functional engineering teams, mentoring cybersecurity professionals, and providing oversight of security testing, monitoring, and incident response activities to support a secure and resilient deployment. This position is remote with up to 25% travel. Required Qualifications & Experience Master’s degree in Cyber Security, Cyber Engineering, or a related technical field with 8+ years of relevant experience OR Bachelor’s degree in Cyber Security, Cyber Engineering, or a related technical field with 10+ years of relevant experience. Demonstrated technical leadership in cybersecurity architecture, design, and deployment efforts. Proven ability to collaborate across multidisciplinary engineering teams and provide senior‑level technical guidance. Extensive experience designing and implementing cybersecurity solutions for complex networked environments. Strong knowledge of cybersecurity compliance frameworks and standards applicable to high‑security environments. Desired Qualifications & Experience Experience supporting Network Operations Centers (NOC) and/or Security Operations Centers (SOC). Familiarity with large‑scale government acquisition, test, and operational environments. Experience with carrier‑class networks, cloud infrastructure and operations, and cross‑domain solutions. Professional cybersecurity certifications such as CISSP, CySA+, CISM, and/or CASP+. #J-18808-Ljbffr
$144.9k - $265.8k
...build a better working world. Digital Identity & Authentication SME (Microsoft Entra, Okta, Ping, Saviynt) Overview In... ...solutions using Microsoft Entra, Okta, Ping, Saviynt Design cloud security and IAM architectures for Azure, AWS, GCP, and hybrid...SuggestedWork experience placementSummer holidayFlexible hours- ...Job Title Systems Engineer – SME Chantilly, VA Job Description We're supporting... ...mission-critical team within the Sponsor's cyber investigations program, designing,... ...systems, networks, and applications that power secure operations. This opportunity requires deep...Suggested
- ...2006, MAXISIQ has advanced the state of Cyber RDT&E by bringing together industry expertise... ...software, hardware, communications and security, and leveraging decades of operational... ...MAXISIQ is seeking Cybersecurity Engineer SME candidates to be part of a dynamic team...SuggestedFull timeWork experience placement
- ...2006, MAXISIQ has advanced the state of Cyber RDT&E by bringing together industry expertise... ...software, hardware, communications and security, and leveraging decades of operational... ...seeking IT Windows System Administrator - SME candidates to be part of a dynamic team...SuggestedFull time
- ...Sr Cyber Security Engineer (SME) Candidates must be able to obtain and/or maintain a Department of Defense Top Secret Security Clearance as a condition and continuation of employment Description A leading systems integrator is seeking a highly qualified Cyber...SuggestedRemote workNight shift
- ...Job Title: Cybersecurity Subject Matter Expert (SME) - Cyber Defense Operations Department: Information Security / Cyber Operations Reports To: RSekure Program Manager Location: Chantilly, VA Schedule: Monday - Friday Hours: Full-time, 40-hours/week...Full timeWork experience placementWork at officeMonday to Friday
$130k - $140k
...Mid-Level DevSecOps SME / Cloud Security Engineer (ISSE) Herndon, VA or Colorado Springs, CO Dark Wolf is looking for a Mid-Level DevSecOps... ...and enjoyment in working directly with customers to improve cyber security posture ~ Experience authoring and maintaining...Full timeFor contractors- ...Focus Areas: RMF/ATO, FISMA Compliance, Security Authorization, ISSO Support, Federal Cybersecurity... ...Cybersecurity Compliance Analyst (ATO SME) to provide expert-level support for Risk... ...established in 2011 with focus in Cyber Intelligence, Cyber Security/Defense, Intrusion...Full timeContract workTemporary workMonday to Friday
$187.7k - $225k
...Title: Senior Platform Engineer/Kubernetes SME 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...Contract workTemporary workLocal areaRelocation packageFlexible hours$127.5k - $276.2k
...Zscaler Network Security Engineer (SME) - U.S. Citizenship Required Category: Cyber Security Main location: United States, Virginia, Fairfax Alternate Location(s): United States, Louisiana, Lafayette Position ID: J0226-2501 Employment Type: Full Time...Full timeContract workWork at officeLocal area2 days per week- ...Lead Cybersecurity Compliance Manager (ATO SME) 7 days ago Requisition ID: 1028... ...Focus Areas: RMF/ATO, FISMA Compliance, Security Authorization, ISSO Support, Federal Cybersecurity... ...established in 2011 with focus in Cyber Intelligence, Cyber Security/Defense, Intrusion...Full timeContract workTemporary workMonday to Friday
- ...cutting edge technologies are engineered, secured, and delivered to the fight. At the center... ...a highly qualified Senior Cloud Engineer (SME) to support the United States Air Force's... ...advisor, supporting DSOP, integration, and cyber teams while mentoring engineers and strengthening...Contract workLocal areaImmediate start
- ...Apex Systems is seeking a Sr Cyber Security Engineer (SME) to support a critical digital infrastructure program for the U.S. Department of Defense. This role demands technical leadership in cybersecurity architecture while ensuring compliance with various frameworks....Remote work
- ...Cyber Security SME - TS/SCI FSP Department: Government Customer- Herndon Location: Herndon, VA ACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITION This individual is the Cyber Security/Computer and Network Defense Subject Matter...
- ...for an Expert-level Technical Specialist/SME with TS/SCI clearance and polygraph to join... ...to leverage expertise in network security, systems management, and risk reduction.... ...mitigate risks, and defend against evolving cyber threats Raymond W. Crumpler | Senior...
$165k
...and long-term disability insurance, paid time off, training and professional development assistance. Position YSIis seeking an SME Cloud/Security Engineer (CSE) The ideal candidate will be responsible for the following: Delivers advanced security engineering and...Temporary workImmediate startRemote work$135k - $216k
...IT Audit Advisory Consultant/FISCAM SME Job Locations US-VA-Herndon | US-MD-Riverdale | US-DC-Washington Requisition ID 2026-165501 Position Category Cyber Security Clearance Top Secret/SCI w/Poly Responsibilities...Contract workFor contractorsShift work- ...Business System Analyst SME Sentar is proud to be an employee-owned company, fostering a culture of empowerment, collaboration,... ...invite you to join the team where you can build, innovate, and secure your career. Sentar is seeking a Business System Analyst SME...Temporary workFor contractorsFlexible hours
$104.8k - $192.2k
...diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world. Digital Identity SME - Senior (Microsoft Entra, Saviynt) Overview In today’s rapidly evolving IT landscape, organizations face increasingly...Work experience placementSummer holidayFlexible hours- ...Ansible, CloudFormation), Cloud Administration, and Cloud AI Services. As a Cloud Engineer SME, you will be a part of a team leading the design, implementation, and automation of a secure cloud infrastructure. Focusing on Infrastructure as Code (IaC) and cybersecurity best...Work experience placement
$135k - $216k
...Cloud Architect, SME Job Locations US-VA-Herndon Requisition ID 2026-164928 Position Category Information... ...reference models, migration frameworks, and governance to guide secure transition, consolidation, and hosting strategies across DoD/...Contract workShift work- ...ServiceNow Developer SME, TS/SCI Security Clearance Required, Chantilly, VA We are seeking a skilled ServiceNow Developer SME to join the team in support of Federal Government clients. As a ServiceNow Developer SME, you will be responsible for designing, developing...
- ...comes from people who feel supported and valued. We are currently seeking a highly experienced Cyber Security Systems Engineerat the Manager or Subject Matter Expert (SME) levelto support the security accreditation and assessment of multiple applications. The ideal...Work experience placementFlexible hours
$150k
...training and professional development assistance. YSI is seeking an SME Data and Automation AI Analyst. The ideal candidate will be... ...across all cybersecurity functions, including RMF, authorization, security engineering, risk management, SETA, vulnerability management,...Full timeTemporary workImmediate startRemote work- ...MANTECH seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA . In this role, you will support mission-critical cybersecurity operations by designing, deploying, and maintaining secure, resilient data collection...Full timeWork at office
- ...MANTECH seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA . You will engineer, design, and sustain Comply-to-Connect (C2C) deployment support to migrate and maintain critical services across unclassified...Full timeWork at office
- ...Cyber Security Engineer Fairfax, VA Job Summary A Rampant Technologies Cybersecurity Engineer (CSE) is a key resource that is a part... ...company's goals. Essential Duties & Responsibilities SME on problem identification, diagnosis, and resolution of problems...Work at office
- ...MANTECH seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA. This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network infrastructures across classified and unclassified...Full timeWork at office
- ...Chief Cloud Architect and Lead Infrastructure SME (CCALIS) **Location**: Remote... ...recognized leader in designing and supporting secure, resilient, and scalable cloud... ...initiatives Ensure system compliance with DoD cyber and ZTA frameworks Support CI/CD pipelines...Local areaRemote work
- ...Information Security System Engineer Level III CHANTILLY, VA 20151 Overview Position... ...as a security Subject Matter Expert (SME) The contractor shall participate in and... ...personnel assigned to OS&CI/F&ISD shall conduct cyber security research and assessments,...Full timeTemporary workFor contractors
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