Overview At Criterion Systems, we developed a different kind of business—a company whose real value is a reputation for excellence built upon the collective skills, talents, perspectives, and backgrounds of its people. By accepting a position with Criterion Systems, you will join a group of professionals with a collaborative mindset where we share ideas and foster professional development to accomplish our goals. In addition to our great culture, we also offer competitive compensation and benefit packages, company-sponsored team building events, and advancement opportunities. To find out more about how Criterion can help you take your career to the next level please visit our website: www.criterion-sys.com . Criterion Systems is a Military/Veteran Friendly Company therefore we encourage Veterans to apply. Responsibilities We are seeking a mission-focusedCloud Systems Administrator IV to support and contribute to our government customer’s success in Reston, Virginia! Duties, Tasks & Responsibilities + Maintains smooth operation of multi-user computer systems, including coordination with network engineers. + Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. + Performs systems security administration functions, including creating user profiles and accounts. + Provides Tier 1 and Tier 2 problem identification, diagnosis and resolution of problems. + Provision/harden Linux operating systems. + Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space. + Interacts with users and evaluates vendor products. + Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. + Develops and monitors policies and standards for allocation related to the use of computing resources. Qualifications Required Experience, Education, Skills & Technologies + Must possess an active (<= 6 years) TS/SCI with counterintelligence polygraph. + Bachelor's degree in computer science, software engineering or field applicable to the position required. Additional experience in lieu of degree may be considered. + Eight or more years of relevant technical experience required. + Current Security+ or other IAT II/III level certification. + Full time on-site work at a government or customer facility. + Demonstrated strong Linux skills with current/very recent experience., to include experience with Linux OS upgrades in a cloud environment. Linux (CentOS, RHEL, and/or Oracle). + Experience working in an AWS environment and familiarity with console accesses to provision, maintain and monitor servers. + Performing snapshots, disaster recovery, performance tuning. + Installation, STIG hardening, patching. + Excellent troubleshooting skills and Tier 1 communication skills. + Experience developing and maintaining critical documentation (SIPs, SAGs, SOPs, Getting started guides ) + Must have familiarization with scripting and installing applications from root files. + Must have working knowledge of reviewing of security scans, applying fixes to resolve noted deficiencies. + Demonstrated ability to work with and run STIGs via a viewer or other automated tools. Preferred Experience, Education, Skills & Technologies + Experience working with Agile scrum teams. + Experience with ElasticSearch. + Cloud (EC2s, S3, Elasticache), Kafka, Openshift, Docker, Keycloak, Wildfly. + PKI certificates, SSL, service accounts. + Maintaining multiple environment types (physical, virtual, cloud). + Experience supporting security audits and testing events. Security Clearance Level + TS/SCI with active counterintelligence polygraph. Certifications + Security+ or other IAT II/III level certification that is currently active Work Schedule + Full-time on-site Benefits Offered + Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Tuition/Training Assistance, Parental Leave, Paid Time Off, and Holidays. Criterion Systems, LLC and its subsidiaries are committed to equal employment opportunity and non-discrimination at all levels of our organization. We believe in treating all applicants and employees fairly and make employment decisions without regard to any individual’s protected status: race, ethnicity, color, national origin, ancestry, religion, creed, sex/gender, gender identity/gender expression, sexual orientation, physical and mental disability, marital/parental status, pregnancy (including childbirth, lactation, and related medical conditions), age, genetic information (including characteristics and testing), military and veteran status, or any other characteristic protected by law. For our complete EEO/AA and Pay Transparency statement, please visit https://careers-criterion-sys.icims.com/. Job LocationsUS-VA-Reston ID 2024-3342 Category Information Technology Type Mid