Senior Information System Security Engineer

Overview CDT is seeking an experienced and skilled ISSE for a DoD program in McLean, VA. This position is hands‑on technical and will provide on‑site security engineering, systems administration, and information assurance support to the program. Clearance Requirements An active Secret is required, Top Secret is preferred. Candidates who do not meet...

Overview Hit Apply below to send your application for consideration Ensure that your CV is up to date, and that you have read the job specs first. CDT is seeking an experienced and skilled ISSE for a DoD program in McLean, VA. This position is hands‑on technical and will provide on‑site security engineering, systems administration, and information...

Senior Systems & Platform Engineer (Primary IT) Location: Fully Remote Type: 6-Month Contract-to-Hire Contact: Cdinnocenti@altaits.com Role Purpose As the Senior Systems & Platform Engineer, you will be the technical owner of our Azure ecosystem and platform reliability. Your mission is to oversee performance, security, cost, automation, and incident...

Required Security Clearance:Top Secret/SCI with CI PolygraphCity:Tysons CornerState/Territory:VirginiaTravel:NonePotential for Teleworking:NoSchedule:Full TimeDoD 8570 IAT Requirement:NoneDoD 8570 IAM Requirement:NoneDoD 8570 IASAE Requirement:NoneDoD CSSP Requirement:NoneLast Updated:1/17/26 8:31 PMRequisition ID:705154US Citizenship Required?:YesPay...

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you'll be part of a...

Job Number: R0230045Information System Security Officer The Opportunity: We're looking for an Information System Security Officer (ISSO) responsible for assessing and requesting client authorization for company-managed classified endpoints, servers, networks, and security appliances. This involves applying evolving U.S. Government cybersecurity policy and...

A cybersecurity company in McLean, VA is looking for an experienced ISSE to provide on-site security engineering and support for a DoD program. Apply promptly! A high volume of applicants is expected for the role as detailed below, do not wait to send your CV. The ideal candidate will have over 8 years of experience in systems and network management,...

Job Title: Systems EngineerLocation: On-site McLean, VAClearance Required: Active TS/SCI with Full Scope PolygraphCompany: Quantum Science Solutions (QSS)Rate: OpenPosition OverviewQuantum Science Solutions (QSS) is seeking an experienced Systems Engineer to support a mission-critical federal program in McLean, VA. This role operates within a secure Agile...

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full...

Senior Systems & Platform Engineer (Primary IT) Fully Remote Type: 6-Month Contract-to-Hire As the Senior Systems & Platform Engineer, you will be the technical owner of our Azure ecosystem and platform reliability. Your mission is to oversee performance, security, cost, automation, and incident response. You will translate operations telemetry into...