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Sr. Systems Administrator - Enterprise Services 

Category Information Technology  

At Systems & Technology Research (STR), we harness the power of technology to solve challenging national security problems. Our nation's military and intelligence services employ advanced technologies at all echelons, from central commands to battlefields, to create strategic and tactical advantage. Our mission is to provide this advantage through the development and delivery of innovative sensors and information processing capabilities. Recent applications include analysis of social media and discovery of activities and patterns of life in massive data sets.

The Position:

Senior Systems Administrator to support the STR Enterprise Infrastructure, Information Assurance (IA) team and program technical staff for ongoing and emerging programs based on information technology requirements. The ideal candidate will have a majority (but not expected to have all) of the following qualifications:

Job Description:

  • Domains: IT infrastructure; Networking; Virtualization; system architecture design; system configuration management, administration, and troubleshooting; application deployment and support; user support; system and application documentation
  • Responsible for Data Center/Server Room operations; System provisioning, monitoring/alerting, network configuration, administration of Linux, Windows, VMWare and vSphere
  • Configuration of Network attached storage (NAS) for Virtualization backend and backups, SAN, iSCSI, NFS
  • Design, develop, and support server and network deployments for technical programs; ensure system availability and capacity planning; OS builds/upgrades; system patching; apply OS configuration to new systems; troubleshoot host/server failures and related issues; perform routine data backups; documenting maintenance actions taken; infrastructure diagrams; document and prepare security migrations
  • Experience with configuration automation tools such as Ansible, Docker, Python, PowerShell
  • Experience with provisioning automation with Kickstart, vSphere API, AWS API, Puppet, Chef
  • Ability to spec system requirements, estimate cost, and provide quotes to meet project needs and budget alignment
  • Ability to complete schedule of weekly audit reviews; user management; profile updates; inspection preparation; sanitizations of equipment; AV updates; validate OS technical controls and compliance; ensure all HW changes follow Security Department procedures; responsible for laptop sign-outs and Removable Media Access Forms; documenting maintenance actions taken
  • OS configuration with Active Directory, for policy enforcement though GPO, and user and group management
  • Evaluate and propose use of open source and commercial software, frameworks, and tools where applicable
  • Interact with other system administrators, technology engineers, service providers to meet project and program goals
  • Perform all related duties as assigned
  • Ensure smooth deployment of new applications across the enterprise
  • Conducting internal reviews of infrastructure components and recommendations for improvements
  • Administer Active Directory services, member servers and storage, integrate new technologies into new and existing systems, including the transition and migration of enterprise systems
  • Determine isolation and resolution of complex hardware and software problems involving the application, the operating system, the hardware, the communications infrastructure, and/or any combination thereof
  • Lead, manage, and execute projects approved by the Government and documented in the ticketing system
  • Perform systems administration of desktop and server systems connected to local and wide area networks
  • Desktop system management responsibilities involving account monitoring, security, Operating System installation, and other local area system administration related functions
  • Ensure high availability of all critical applications and servers while meeting or exceeding Service Level Agreements (SLA)
  • Manage the overall execution of projects by serving as the technical lead and subject matter expert and being accountable for the project outcome
  • Rapidly respond to patch management requirements by assessing risk, devising plans, and executing plans to all servers, server components, and other devices
  • Establish and validate full functionality of disaster recovery environment for critical business applications
  • Manage backup and recovery operations for multiple locations
  • Work closely with technical teams to detect network faults and performance issues and proactively implement monitoring services and alerts to prevent future occurrences
  • Maintain highly secured systems through proper configuration and system access monitoring
  • Develop and maintain technical documentation
Position Requirements

Basic Qualifications:

  • Work experience as a Linux and/or Windows Senior System Administrator
  • Strong working knowledge of Storage and Backup infrastructure of NetApp and Backup Exec
  • Good knowledge of at least one scripting language
  • Solid understanding of LAN/WAN networks
  • Knowledge of system security techniques
  • Good problem-solving and communication skills
  • Strong project management skills
  • Ability to mentor more junior members
  • Strong team mindset
  • 10+ years of progressive technical (hands-on) experience related to System administration, Information Assurance/Cyber Engineering requirements, determination, development, and implementation
  • Bachelor's Degree or better in Computer Science, Information Technology, Engineering or related technical field preferred or equivalent experience
  • Experience with security features and/or vulnerability of various operating systems as defined by NIST, DISA (STIGs), and USCYBERCOM. Experience with network and system security administration, including operating system security configuration and account management best practices for Linux (CentOS, Ubuntu, RedHat), Window Server, Windows clients, Microsoft Exchange, and CISCO systems
  • Experience with performing patch updates and vulnerability remediation
  • Hands on experience with configuring and maintaining networking devices (firewalls, switches, routers, TACLANES, NSA Type I encryption, etc.)

Desired Qualifications:

  • Current U.S. Government Top Secret clearance with SCI eligibility or willingness to be submitted for clearance
  • DoDI 8570.01-M IAT/IAM Level-II Compliant Certification (such as Security+ or CISSP) a plus
  • Experience working U.S. Government contract proposals as an Information Assurance/Information Security Engineering subject matter expert a plus
  • Security-related Network (e.g., Cisco) and Operating Systems (e.g., Linux, Windows) certification or training
  • Self-starter requiring limited direction and supervision
  • Ability to organize and prioritize numerous customer requests in a fast paced, deadline driven environment
  • Willing to travel occasionally to other office locations

STR seeks to provide an outstanding work environment for its employees with excellent benefits and competitive compensation. Full-time employees enjoy 401(k), profit sharing, health and welfare benefits, subsidies for training and conference attendance to foster continued learning and development, and a casual yet technically challenging work environment.

STR is dedicated to fostering a diverse and inclusive workforce where all employees, regardless of race, ethnicity, gender, neurodiversity, or other personal characteristics, feel valued, included, and empowered to achieve their best. We recognize that each employee’s backgrounds, experiences, and perspectives are essential for providing our customers with innovative solutions to challenging national security problems. STR’s commitment to attracting, retaining, and engaging talented and diverse professionals is demonstrated by our participation, sponsorship, and support in local and national minority organizations.

Applicants must be US Citizens.

About the Organization Systems & Technology Research (STR) is a rapidly growing technology company with locations north of Boston, MA, Arlington, VA and near Dayton, OH. We specialize in advanced research and development for defense, intelligence, and national security, trying to understand how to protect our society: from stopping malicious botnet attacks, to understanding cyber vulnerabilities, providing next generation sensors, radar, sonar, communications, and electronic warfare to developing artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, but you go home at night knowing that you pushed the forefront of technology and made the world a little safer. We recognize that the world is changing, that it is becoming more connected than ever before, making things change faster than before, and reshaping society in the process. We all want to understand this changing world and leave it better for our work.

We're not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe!

EOE Statement STR is fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at and provide your name, phone number and email address.

US Citizenship is required for all positions.

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