Classified Systems Administrator

Installs, configures, troubleshoots, and maintains server configurations (hardware and software) to ensure their confidentiality, integrity, and availability. Also manages accounts, firewalls, and patches. Responsible for implementing access control, resetting passwords, account creation, and general administration • Responsible for day to day support and maintenance of IT infrastructure systems (e.g. servers, workstations, switches, routers, firewalls, intrusion prevention systems, encryption devices) • Maintain and update documentation, including standard operating procedures, network drawings, and configuration documentation • Conduct reviews and technical inspections to identify and mitigate potential security weaknesses, and ensure security compliance is implemented and all necessary systems are functional • Provide resolutions to an assortment of customer defined problems of moderately complex scope. Ask appropriate questions and use knowledge and resources to diagnose and resolve basic technical issues. Escalate issues that extend beyond Tier II level of support as needed. Troubleshoots and solves problems without violating the security architecture requirements of the systems they are assigned to. • Other duties include but are not limited to system troubleshooting, vendor coordination, software patching, system deployment, license management, hardware and software management, and lifecycle management. • Work closely with the Information Assurance group to ensure system accreditation process is followed including maintenance of standard operating procedures, network drawings and configuration documentation. • Coordinate with senior personnel and IT management of all risks impacting IT related services including but not limited to: power outages, environmental changes, natural disasters, employee accident or deliberate acts, maintenance or third party vendor actions. • Provides guidance to and may oversee the activities more junior team members. • Develop and conduct tests of systems to evaluate compliance with specifications and requirements by applying principles and methods for cost-effective planning, evaluating, verifying, and validating of technical, functional, and performance characteristics (including interoperability) of systems or elements of systems incorporating IT.

Must possess and maintain an active US DoD Top Secret (TS/SCI) security clearance. • Security+ certification or higher professional certifications in accordance with DoD 8570.01-M, IAT Level II and IAM Level I • Bachelor of Science in Information Technology, or a related field, and 3-4 years of relevant experience, or 3+ years of experience without degree. • Prior systems administration or networking administration and experience with some, but not limited to, the following technologies: LDAP, Active Directory, WSUS, VMware, Veeam (or equivalent), Nessus, or Splunk. • Knowledge of and some implementation experience with security technologies and architecture, including encryption, network security, firewall configuration, intrusion detection. • Due to the nature of this work, this job requires on-site presence in Cambridge, MA. Flexible hours and/or schedules will be determined between the employee and hiring manger. • Has implemented DoD Security Technical Implementation Guides on at least one technology platform (i.e. Windows or Linux OS, switches, printers). • Proficiency working with Windows operating systems, including Windows 10, Windows Server 2016 Server, Windows Server 2019 • Ability to research technologies, errors, and products to determine best path forward. • Off-hour/on-call support as needed. A certain degree of flexibility of schedule is required as some work (planned/unplanned) must be done outside of major production hours during pre-scheduled maintenance windows Preferred Qualifications: • US DoD Top Secret (TS/SCI) security clearance with Active CI Polygraph (within 5 years) is strongly preferred. • Excellent time management skills, and the ability to prioritize and multi-task. • Ability to work efficiently and independently with minimal supervision (i.e. self-motivated and willing to stretch to meet important deadlines). • Vendor specific certifications from Cisco, VMware, Microsoft or Dell are desired. • Knowledge and understanding of one or more of the following regulations: JAFAN 6/9, NISPOM, JSIG, CNSSI 1253, NIST, RMF, and ICD 503. • Experience supporting engineers in software, simulations, and hardware development • Ability to convey risks and propose mitigation strategies to technical and business audiences. • Strong leadership skills. Ability to work with and drive team results

Current in scope Top Secret security clearance with SCI eligiblity is required.