Senior Systems Administrator

Summary Senior Systems Administrator Arlington, VA Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employer’s core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take your career to the next level! We deliver essential technology services to our customers in support of their missions to sustain the national security and economic interests of our nation. SecuriGence is seeking a talented Senior Systems Administrator to help contribute to our success. Come help us solve problems with Innovation through Intelligence. Responsibilities Lead the administration, maintenance, and optimization of enterprise Windows and Linux server environments. Perform advanced system capacity planning, performance analysis, and resource management to ensure infrastructure scalability and reliability. Design, deploy, and manage complex virtualized environments utilizing VMware technologies. Serve as the technical lead for system architecture, upgrades, migrations, and modernization initiatives. Troubleshoot and resolve complex infrastructure, operating system, and application issues across enterprise environments. Install, configure, and maintain Windows Server and Linux operating systems in accordance with organizational requirements and industry best practices. Apply operating system, application, and security patches to maintain compliance, security, and operational effectiveness. Lead vulnerability remediation efforts and ensure systems remain compliant with DISA STIGs, DoD cybersecurity requirements, and organizational security policies. Monitor enterprise systems and infrastructure to ensure continuous availability, performance, and operational readiness. Develop and implement backup, recovery, business continuity, and disaster recovery strategies. Automate administrative tasks and system management functions using scripting and automation tools such as PowerShell, Bash, or Ansible. Develop, maintain, and enforce technical standards, policies, procedures, and system documentation. Mentor junior administrators and provide technical guidance across infrastructure-related projects and operational activities. Collaborate with network, cybersecurity, cloud, and application teams to design and implement integrated enterprise solutions. Evaluate emerging technologies and recommend improvements to enhance system performance, security, and operational efficiency. Support after-hours maintenance, troubleshooting, and incident response activities as required. Perform additional duties as assigned to support team and organizational objectives. Other duties as assigned. Qualifications Bachelor’s degree in information technology, Computer Science, Information Systems, Engineering, or a related technical discipline. 7+ years of relevant experience. Experience with Windows and Linux operating systems Experience with Windows and Linux operating systems DOD IAT Level II Certification is required. DOD Top Secret clearance w/ SCI eligibility Successfully pass background and drug screening Knowledge, Skills, and Abilities: Proven experience with both Windows and Linux operating systems, demonstrating versatility in managing diverse environments. Advanced proficiency in Windows Server, infrastructure management, PowerShell scripting, and Linux administration. Hands‑on experience with SCCM, OS management, DNS, SAN, group policy, DHCP, and Microsoft Windows technologies. Expertise in managing and optimizing Citrix environments, including Citrix Virtual Apps and Desktops, with a focus on ensuring high performance, scalability, and seamless user experience. Strong analytical and troubleshooting skills to diagnose and resolve complex technical issues effectively How you’ll grow At Chenega MIOS, our professional development plan focuses on helping our team members at every level of their careers to identify and use their strengths to do their best work every day. From entry-level employees to senior leaders, we believe there’s always room to learn. We offer opportunities to help sharpen skills in addition to hands‑on experience in the global, fast‑changing business world. From on‑the‑job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their careers. Benefits At Chenega MIOS, we know that great people make a great organization. We value our team members and offer them a broad range of benefits. Learn more about what working at Chenega MIOS can mean for you. Chenega MIOS’s culture Our positive and supportive culture encourages our team members to do their best work every day. We celebrate individuals by recognizing their uniqueness and offering them the flexibility to make daily choices that can help them be healthy, centered, confident, and aware. We offer well‑being programs and continuously look for new ways to maintain a culture where we excel and lead healthy, happy lives. Corporate citizenship Chenega MIOS is led by a purpose to make an impact that matters. This purpose defines who we are and extends to relationships with our clients, our team members, and our communities. We believe that business has the power to inspire and transform. We focus on education, giving, skill‑based volunteerism, and leadership to help drive positive social impact in our communities. Learn more about Chenega’s impact on the world. Chenega MIOS News- Tips from your Talent Acquisition Team We want job seekers exploring opportunities at Chenega MIOS to feel prepared and confident. To help you with your research, we suggest you review the following links: Chenega MIOS web site - Glassdoor - LinkedIn - Facebook - Estimated Salary/Wage USD $119,700.00/Yr. Up to USD $160,000.00/Yr. #J-18808-Ljbffr Chenega Agile Real Time Solutions, LLC