Mission IT Operator

CACI International Inc; Denver (CO); On-site; USD 58,400 - 116,900; Full time

Job summary

CACI International Inc in Denver is seeking a Mission IT Operator to support a 24x7 government mission. You will detect, isolate, and resolve ground segment problems and serve as first responder for site issues, with broad knowledge of Windows and Linux across a global environment.

Shift work is 12 hours (0600-1800 or 1800-0600) with a 4-on/4-off cycle. Active TS/SCI with Poly and IAT Level II/ Security+ required; non-standard weeks and holidays may apply.

Qualifications

• Active TS/SCI with Poly required.
• Must have a current DODI 8570.01-M IAT Level II Certification, Security+ Certification.
• Excellent communication skills across a multi-location enterprise.

Responsibilities

• Resolve IT hardware and software infrastructure issues (servers, network, security).
• Provide first-level technical support in a 24x7 service center.
• Create and manage support tickets in a web-based ITSM/CRM platform.
• Perform initial assessment, triage, and resolution for common incidents; escalate complex issues to Tier 2.

Skills

UNIX

Linux

Windows

Education

IAT Level II Certification (DOD)

Security+ Certification

Tools

VMware

HP OpenView

CA Concord

Job description

Job Title: Mission IT Operator

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

Anticipated Posting End: 7/27/2026

You will perform as a Mission IT Operator supporting a 24x7 government mission. You will provide direct support for detecting, isolating, and resolving ground segment problems; and serve as first responder for all site issues. This position requires broad knowledge of both Windows and Linux-based systems across a global environment.

Shift Work (12 hours a day 0600-1800, 1800-0600/ 4 on 4 off (Day, Day, Night, Night)).

Responsibilities

• Responsible for resolving IT hardware and software infrastructure (servers, network, security, etc.) issues using systems
• Analysis techniques and procedures.
• Ensure appropriate function of hardware, software, or system functional specifications.
• Analyzes, troubleshoots, and resolves issues with IT infrastructure including user systems, servers, storage, and network connectivity.
• Provides system administration for assigned infrastructure and establishes and maintains security as it relates to users.
• Supports new infrastructure projects.
• Maintains all configuration documentation for assigned infrastructure.
• Master the steps required to effectively manage and prioritize incidents.
• Support in times of high call volume, first-level technical support in a 24x7 world-class service center, responding to inbound incidents and service requests via phone, email, and walk-up channels.
• Deliver frontline support for system, application, network, and infrastructure issues, ensuring fast, accurate triage and resolution.
• Create and manage support tickets in a web-based ITSM/CRM platform while actively troubleshooting and communicating with end users. Perform initial assessment, triage, and resolution for common incidents; elevate complex or critical issues to Tier 2 or appropriate technical teams.
• Ensure that all technical baseline infrastructure is maintained at an optimal level to satisfy customer mission needs.
• Monitor, recognize, evaluate, and correlate system and network problems.
• Responsible for maintaining a privileged user level of access, across numerous high-priority systems.
• Interface daily with government and partner country senior leadership, system operators, and engineers at the site and across the enterprise.
• Interpret system documentation and record problems in appropriate reporting tools.
• Support after‑action activities, by collecting data that describes the environment at the time of the failure – serve as a single point of contact for monitoring, troubleshooting, and anomaly resolution.
• Restart system services and hardware as needed.
• Escalate problems to Tier 2 level as required, and notify mission director if priority or severity necessitates.
• Coordinate with any required resources across the enterprise to resolve operational issues.
• Work with other 24x7 ground segments across multiple locations providing enterprise-level maintenance support, with high customer visibility into all actions and responses.

Required Qualifications

• Active TS/SCI with Poly required.
• Must have a current DODI 8570.01-M IAT Level II Certification, Security+ Certification.
• Excellent communication skills ensuring effective and accurate exchange of information across a multi-location enterprise, with customer visibility into crew-based actions and responses.
• Must be able to work a non‑standard work week, weekends, and holidays; 12‑hour shift work expected in support of 24x7 operations.
• System administration experience to include UNIX, Linux, and Windows platforms.

Desired Qualifications

• Experience with virtualization technologies and software such as VMware.
• Knowledge and understanding of Enterprise Management Systems including HP OpenView, and CA-based Concord.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

Proposed Salary Range For This Position

$58,400 - 116,900 USD

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.