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What is it like to work at Link Solutions?

Link Solutions is a company that values collaboration and innovation, fostering a dynamic work environment where employees can share ideas and expertise.

The company's team structure is designed to promote open communication and cross-functional collaboration, with a flat organizational hierarchy that encourages employees to take ownership of their projects and contribute to the company's mission.

Working at Link Solutions may appeal to candidates who are looking for a challenging and rewarding career in a fast-paced industry, with opportunities to develop new skills and advance their careers in a supportive and inclusive work environment.

What makes Link Solutions an attractive place to work?

Link Solutions is a reputable company in the industry, known for its commitment to delivering high-quality services and solutions to its clients. The company's workplace is characterized by a culture of innovation, collaboration, and stability, with opportunities for employees to work on diverse projects and contribute to the growth of the organization. Joining Link Solutions can provide professionals with a chance to make a meaningful impact, develop their skills, and advance their careers in a dynamic and supportive environment.

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Infographic showing various Senior Windows Systems Administrator job openings at Link Solutions in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% Physical job distribution.

Systems Administrator (Senior-Level)

Link Solutions, Inc.

Sierra Vista, AZ • On-site

$76K - $103K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

Job description

Company Description
Link Solutions, Inc. delivers reliable and effective Information Technology services to government clients in support of critical mission needs. Delivering a broad range of Infrastructure Operations, Application Development, Cybersecurity, Virtualization, Cloud and Mobility services.
If you're looking for a technology company that values innovation, with a vision toward the future of the technology landscape, look no further than Link Solutions! Link is quality and compliance-focused, under our guiding philosophy, "Mission First, Customer Always".
We are certified in ISO 9001:2015, ISO 20000-1:2018, and ISO 27001:2022; CMMC Level 2 certified; and appraised at CMMI Maturity Level 3 for Services and Development.
Job Description
Link Solutions is seeking a Systems Administrator (Senior-Level)to join our team in Fort Huachuca, AZ.
  • Active DoD Top Secret Clearance required
  • IAT Level II Certification equivalent or higher
  • Non-remote (relocation incentive available)

The Systems Administrator will support the U.S. Army Information Systems Engineering Command (USAISEC), Communications Security Directorate (CSD), by administering and sustaining mission-critical enterprise infrastructure supporting secure communications and national defense operations. This position provides senior-level support across Windows and Linux server environments, virtualization platforms, Active Directory services, network infrastructure, and cybersecurity compliance activities in classified and unclassified environments.
Join our dynamic team at a top-tier organization, where work-life balance and employee well-being take center stage. This exciting opportunity lets you contribute to cutting-edge projects while safeguarding our national security.
Job Responsibilities:
  • Administer, maintain, and support physical and virtual Windows, Linux/UNIX, and Active Directory server environments to ensure system availability, performance, and security.
  • Install, configure, patch, upgrade, and sustain operating systems, applications, and enterprise services in accordance with Government and organizational requirements.
  • Monitor system and network performance; troubleshoot and resolve hardware, software, connectivity, and operational issues across classified and unclassified environments.
  • Provide Tier II/III technical support for end users, including workstation deployment, peripheral support, user account administration, and technical training.
  • Manage user accounts, permissions, privileged access, and authentication services while enforcing cybersecurity and access control policies.
  • Administer and support network infrastructure, including routers, switches, firewalls, encryptors, LAN/WAN connectivity, and copper/fiber cabling systems.
  • Maintain network documentation, configurations, and port assignments while monitoring uptime, traffic, and overall network health.
  • Support cybersecurity operations by implementing RMF requirements, managing security controls, conducting vulnerability assessments, supporting continuous monitoring activities, and maintaining ATO compliance documentation.
  • Respond to cybersecurity incidents, malware infections, and classified spillage events, including system isolation, evidence preservation, and remediation support.
  • Execute and validate backup, recovery, contingency, and disaster recovery procedures to ensure system resilience and operational continuity.
  • Coordinate with vendors, Government stakeholders, and support organizations to resolve technical issues, manage support tickets, and oversee warranty and maintenance activities.
  • Support system modernization, technology evaluations, lifecycle replacement planning, system testing, and implementation of new technologies and capabilities.
  • Prepare and deliver technical briefings, reports, recommendations, and analysis to leadership, stakeholders, and technical governance boards.
  • Develop, maintain, and update system documentation, standard operating procedures (SOPs), configuration records, and troubleshooting guides to support operations and rapid onboarding of new personnel.
  • Identify and implement process improvements, automation opportunities, and operational efficiencies in support of mission requirements and organizational objectives.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job.
Qualifications
  • Active DoD Top Secret Clearance required.
  • Ten (10+) years of experience administering, maintaining, and supporting enterprise information technology systems, including Windows and/or Linux server environments, virtualization platforms, Active Directory, and networked infrastructures.
  • IAT Level II Certification equivalent or higher per DoD 8570/DoD 8140 (CompTIA Security+ CE, CCNA Security, GICSP, GSEC, SSCP, etc.).
  • In addition to the required IAT Level II certification, candidates must possess a second industry-recognized certification in a relevant technical discipline. Acceptable certification areas include systems and network administration, operating systems, server virtualization, videoconferencing technologies, fiber optic cabling, audio/visual systems, network and systems management and control, media access and digital interfaces, Voice over Internet Protocol (VoIP), or system and network protocols.
  • Experience administering Microsoft Windows Server environments, Active Directory, Group Policy, and virtualized infrastructure such as VMware vSphere/ESXi.
  • Knowledge of network management, monitoring, and troubleshooting for enterprise server and communications environments.
  • Ability to install, configure, maintain, and troubleshoot network, server, and communication technologies.

Preferred:
  • Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related technical discipline.
  • Experience supporting Department of Defense (DoD), Army, DISA, NETCOM, USAISEC, or other federal government environments.
  • Experience supporting videoconferencing, VoIP, and audio/visual technologies.
  • Familiarity with fiber optic cabling, digital media interfaces, and communications infrastructure.
  • VMware Certified Professional (VCP), Microsoft, Cisco CCNA/CCNP, or equivalent industry certifications.
  • Experience providing support for mission-critical systems and VIP end users.
  • Experience administering VMware vSphere/ESXi, Windows Server, Active Directory, and Group Policy in enterprise environments.
  • Excellent written and verbal communication skills.
  • Strong organizational skills with attention to detail and the ability to manage multiple priorities.
  • Proven problem-solving and troubleshooting skills in complex technical environments.
  • Self-motivated with the ability to work independently with minimal supervision.

Candidates must provide proof of certification and maintain all required credentials throughout their employment.
Additional Information
Link Solutions Inc. offers a competitive compensation and benefits package to include paid holidays, paid time off, medical, dental, vision, company-paid long and short-term disability, life insurance, referral bonuses, relocation reimbursement program, certification reimbursement program, retirement, and more.
Link Solutions, Inc. is an EOE. AA/M/F/D/V. We participate in the E-Verify Employment Verification Program. All your information will be kept confidential according to EEO guidelines.

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