Senior System Administrator (MSO)

Company: GD Information Technology
Location: Livermore
Posted on: April 1, 2026

Job Description:

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: IT Networking, Networking, Solarwinds, Wireshark Certifications: None Experience: 8 years of related experience US Citizenship Required: Yes Job Description: Systems Administrator/Mission Support Operator - $10K Sign-on bonus *Classified work and therefore must be on-site* Mission Support Operator (MSO) provides 24/7, 365, 12hrs shift, Tier 1/2 operational support to end customers and users in the field/worldwide. Monitor the performance and capacity of end-to-end IT computer systems using a variety of specialized software applications/tools. Triage hardware, software, and environmental faults, alerts, or malfunctions. Understand the basic principles of Mobile Phone and Radio Frequency Spectrum/technology. When an issue is identified, the MSO works to determine the cause of the problem, provide situational awareness and resolution to the user community. Serve as first responder and ‘one-stop shop' for all site issues, requiring a broad level of knowledge of high priority systems across a multi-location enterprise. This is similar to a civilian Emergency Operations Center for Police/Sheriff Department, but it is not the same; however, we action 911 notifications. This is not a traditional Network Engineer or System Administration role; however, having either background speeds up training so you can be proficient in 6 – 12 months. This role is "mission critical"; therefore, are demanding and challenging. This is NOT a role that can be trusted to be performed in a remote capacity, must be ON SITE. Person, we seek must have a solid Information Technology foundation. Panama Shift Schedule | 24/7 Shift Coverage. Panama Shift is a rotating shift pattern that uses multiple teams and two 2-hr shifts to provide 24/7 coverage. The working and non-working days typically follow this pattern: 2 days on, 2 days off, 3 days on, 3 days off. Each team may work the same shift (day or night) for 2-3 months then switches over to the other shift for the next 2-3 months. The rotation helps ensure equity regards to work life balance for all members of team. Other duties include: Monitoring, recognition, evaluation, and correction of IT systems, network, and satellite ground stations. ? Interfacing with the user community, Mission Directors, System Administrators, Network Engineers, external sites, and other system operators as required for real-time detection, isolation, and resolution of problems. 24/7/365 Operational Support to customers and users in the field Utilize SolarWinds, Splunk, WireShark (and other monitoring tools) to monitor internal and external hardware, software, network connectivity, status IT infrastructure (utilizing ping, SNMP traps, customer scripts) – and utilizing established TTP's to respond to issues Provide support to Networking team, including Layer 1/2/3 type activities and documentation/design.? Perform analysis (in both real-time and post-event) on key mission capabilities and provide feedback to internal and external customers.? Maintain a positive, professional, and helpful working relationship with our customers.? Perform daily, weekly, monthly, and quarterly functional checks on systems and capabilities, also perform inspections on critical hardware and infrastructure.? Provide support to the Engineering staff for testing and validation of new software releases and network connections.? Support Configuration Management functions (Incidents, Assets) utilizing BMC Remedy.? Respond to customer voice and electronic support requests.? Respond to real time, mission critical situations (response defined in minutes).? Participate in internal and external scheduled exercises.? Create, maintain, and update SOP/TTP documentation Required Qualifications 8 years of directly related experience in IT / Network administration and support. TS/SCI or DoE Q Clearance Experience with monitoring tools such as SolarWinds, Splunk, or WireShark. Have a working knowledge of critical physical infrastructure (including HVAC, Power, UPS, etc.) that is utilized to support mission operations Desired Qualifications Experience with Linux and Windows system administration and networking background is preferable. Required Education/Certifications DoD 8570 Compliant Certifications are required GDIT IS YOUR PLACE: ? 401K with company match ? Comprehensive health and wellness packages ? Internal mobility team dedicated to helping you own your career ? Professional growth opportunities including paid education and certifications ? Cutting-edge technology you can learn from ? Rest and recharge with paid vacation and holidays OWN YOUR OPPORTUNITY Explore a career in intelligence at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your passion for securing the mission. Armajobs The likely salary range for this position is $117,520 - $138,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: Less than 10% T elecommuting Options: Onsite Work Location: USA CA Livermore Additional Work Locations: Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Keywords: GD Information Technology, Pleasanton , Senior System Administrator (MSO), IT / Software / Systems , Livermore, California