Enterprise Support ISSE - Senior

Job Description Everforth ECS is seeking a Enterprise Support ISSE - Senior to work in Fairfax, Virginia. Please Note: This position is contingent upon contract award. Responsibilities Engineer and validate security controls across enterprise infrastructure and hosting platforms. Integrate technical safeguards such as encryption mechanisms and access control enforcement. Conduct control validation activities in line with DoD/ARNG cybersecurity policies. Support Authorization to Operate (ATO) sustainment and remediation of security findings. Advise operations and engineering teams on secure implementation strategies. Coordinate vulnerability mitigation measures and logging configurations. Ensure compliance with Risk Management Framework (RMF) requirements. Lead efforts to maintain defensible enterprise environments. Required Qualifications Clearance: TS//SCI Eligible required S. Citizenship required DoD 8140.03 Compliance: DoD Cyber Workforce Framework (DCWF) Work Role 671-System Testing and Evaluation Specialist at the Advanced proficiency level Certifications (one or more required): CCSP Education: Masters or Ph.D in [Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, Software Engineering] Extensive experience in information systems security engineering and enterprise IT leadership Proven track record as an Authorizing Official Designated Representative Demonstrated ability to lead cybersecurity compliance programs Experience with Risk Management Framework implementation affecting large-scale personnel Desired Qualifications Clearance: Active TS//SCI preferred Experience with VMware Certified Professional-Network Virtualization Familiarity with DoD Authorizing Official processes Proficiency in ACAS Operator and Supervisor Course Background in managing Secret and Top Secret accreditation packages Strong understanding of cybersecurity policy and RMF requirements ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law. #J-18808-Ljbffr ECS