{"id":3987046,"url":"https://alion.io/job/saliense-information-systems-security-engineer","title":"Information Systems Security Engineer","company":{"id":686932,"name":"Saliense","domain":"saliense.com","url":"https://alion.io/company/saliense","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":null},"role":"Security","role_family":"Security","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Arlington, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Linux","optional":false},{"name":"Nessus","optional":false}],"status":"live","first_seen_at":"2026-11-09T15:33:09Z","employer_posted_date":"2026-11-09","last_verified_at":"2026-11-13T08:51:38Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"About Saliense\nAt Saliense, we are committed to fostering a culture of continuous learning and professional growth. Our employees are encouraged to take on challenging and meaningful work, with ample opportunities for career advancement. We offer competitive compensation and benefits, including:\n20 Days PTO + 40 Hours of Paid Sick & Safe Time\n11 Federal Holidays + 2 Corporate Holidays\nHealth, Vision, Dental, and Life Insurance\n401(k) with Tiered Match & 100% Vesting\nParental Leave for Birthing and Non-Birthing Parents\nProfessional Development Reimbursement Program\nWe believe in empowering our team members to achieve their professional goals while contributing to impactful projects that make a difference. Join us at Saliense and be part of a growing organization dedicated to innovation, collaboration, and excellence. Visit www.saliense.com to learn more.\nThere are many more - connect with us to get a preview of the full benefits package.\nJob Title: Information Systems Security Engineer (ISSE)\nLocation: Arlington, VA\nWe are seeking an experienced Information Systems Security Engineer (ISSE) to join our team in Arlington, VA. The ideal candidate will have a strong technical background in cybersecurity, with hands-on experience in assessments, incident response, threat hunting, threat intelligence, malware analysis, and network security.\nResponsibilities:\nDesign, implement, and maintain security controls to protect information systems and data\nConduct technical assessments to identify vulnerabilities and recommend remediation strategies\nEnsure compliance with industry standards and regulations\nCollaborate with cross-functional teams to implement security controls in AWS and other various cloud computing environments\nEnsure the environment is updated according to DoD standards and guidelines\nFollow approved DoD, STIG standards and DoD IAVA requirements; advise / make recommendations of needed updates to HBSS Lead\nEnsure that all systems are operating with valid licenses for all installed software\nMonitor and audit configurations to ensure that unintended changes do not occur\nAct as a trusted advisor to clients, understanding cybersecurity or data protection requirements and challenges\nLead technical discussions, demonstrations, and presentations, effectively communicating the value proposition of our security solutions to both technical and non-technical stakeholders\nContinuous knowledge of industry trends and emerging threats in cyber security to continuously enhance our solutions and customer value\nWork collaboratively with team members, Information Assurance, Information Security Engineering, and other Subject Matter Experts to resolve security issues\nSolid understanding of cybersecurity principles, including, malware analysis, network security, and cloud security\nSolid understanding of security operations, networking, system administration and security architecture\nA clear understanding of cyber risks and the threat landscape related to cyber attacks\nMaintain thorough documentation of all activities and communications through ticketing systems, operational briefs, and status reports\nSupport RMF lifecycle activities including system authorization and ATO efforts\nEnsure compliance with DoD, NIST, STIG, and IAVA requirements\nDevelop and maintain System Security Plans (SSPs) and IA artifacts\nValidate security control implementation and effectiveness\nCoordinate with ISSOs, system owners, and auditors\nTrack POA&M items and remediation status\nAdvise stakeholders on compliance gaps and risk posture\nImplement and validate security controls in AWS and cloud environments\nAssess cloud configurations for risk and compliance alignment\nSupport secure system migrations and modernization efforts\nCreate scan policies, credential management, and endpoint/Nessus agent management on Tenable Nessus Manager\nReview and apply Defense Information Systems Agency (DISA) Security Technical Implementation Guide (STIG) requirements to servers and endpoints\nPerform eMASS or other GRC tools tasks, including system registration & boundary definition, document control implementation, and security control assessment support\nRequirements:\nBachelor’s degree from accredited university\nMinimum 10 years of cybersecurity / information security experience\nActive DoD IAT Level II Certification (Security+, CySA+, SSCP, etc.)\nActive Computing Environment (CE) Certification (AWS, Azure, Linux+, VCP, etc.)\nActive DoD Secret Clearance (or eligibility)\nStrong experience with:\nHBSS / endpoint security platforms\nVulnerability assessments\neMASS and GRC tools\nIncident response / threat analysis\nRMF / STIG / IAVA compliance\nCloud security","description_format":"text","description_chars":4670,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Continuous learning","Life insurance","Parental leave","Professional 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