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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Sr. Supervisor, Systems Administration

Job Code: 35061

Job Location: Greenville, Texas – (Responsibilities must be performed on-site.)

Job Schedule: 5/8 Work Schedule – (Monday thru Friday)

Job Description:

We are seeking a dedicated Sr. Supervisor to lead our 24x7 Operations Center team. The successful candidate will provide strategic and operational leadership for Tier-1 services, ensuring continuous monitoring, incident response, and escalation support across enterprise systems and mission-critical infrastructure.

The ideal candidate is a disciplined operational leader with strong organizational and analytical capabilities, capable of managing competing priorities while maintaining service continuity. They must demonstrate sound judgment during high-impact incidents, a data-driven approach to performance management, and a proactive mindset toward automation, process optimization, and cost efficiency. Strong communication skills are essential to provide executive-level reporting, risk visibility, and strategic planning input.

Essential Functions:

1. Operational Leadership & Service Delivery

• Own end-to-end operational delivery of Tier 1 services in a 24x7 environment.
• Ensure adherence to established Service Level Agreements (SLAs), KPIs, and performance metrics.
• Monitor operational health indicators and implement corrective actions to maintain service continuity.
• Serve as escalation authority for high-impact incidents and operational disruptions.

2. Workforce & Shift Management

• Lead and develop a team of 13 Tier 1 personnel across multiple shifts.
• Design, coordinate, and maintain shift assignments to ensure full 24x7 coverage with appropriate staffing levels (three analysts per shift).
• Oversee staffing strategy, workload balancing, cross-training, and succession planning to mitigate single points of failure.
• Conduct performance management, coaching, and professional development planning.

3. Compliance & Governance

• Ensure operations align with regulatory, contractual, cybersecurity, and ATO requirements.
• Maintain operational documentation, audit readiness, and evidence artifacts as required.
• Partner with security and compliance teams to remediate findings and implement corrective actions.

4. Stakeholder & Cross-Functional Engagement

• Partner with Program Management, Engineering, Infrastructure, and Customer stakeholders to ensure alignment on operational priorities.
• Provide executive-level reporting on operational metrics, risk posture, incident trends, and resource utilization.
• Support customer briefings and contract performance reviews as required.

5. Continuous Improvement & Optimization

• Drive process improvement initiatives to enhance efficiency, reduce incident volume, and improve mean time to resolution (MTTR).
• Identify automation opportunities to improve Tier 1 effectiveness and reduce manual intervention.
• Implement cost optimization strategies while maintaining service quality and compliance posture.

6. Strategic Planning & Risk Management

• Contribute to long-term operational strategy, workforce forecasting, and capacity planning.
• Identify operational risks and develop mitigation strategies.
• Support organizational growth initiatives requiring Operations Center scaling or capability expansion.

Qualifications:

• Education and Experience
• Bachelor’s degree in Computer Science, Information Technology, or a related field, plus a minimum of four (4) years of management experience supervising multiple direct reports. In lieu of a degree, eight (8) years of directly related professional experience may be substituted. Experience managing a call center, Network Operations Center (NOC), or similar 24x7 operations environment is strongly preferred.
• Certifications Active CompTIA Security+ certification.
• Technical Proficiency
• Operations & Monitoring
• Enterprise monitoring platforms (e.g., SolarWinds, PRTG, Nagios).
• ITSM tools (e.g., ServiceNow, Remedy, Jira Service Management).
• Incident, problem, and change management (ITIL-aligned).
• SLA, KPI, MTTR, and availability reporting.
• Log aggregation and alert/event management.

• Patch & Configuration Management
• Enterprise patch management platforms (WSUS, MECM/SCCM, or equivalent).
• Configuration baseline enforcement and change tracking.
• Vulnerability remediation coordination.
• Network & Infrastructure Fundamentals
• TCP/IP fundamentals and subnetting concepts.
• VLAN and routing basics.
• Firewall rule awareness and troubleshooting at Layer 1/2 boundary.
• Network availability monitoring and diagnostic interpretation.
• Compliance & Governance (ATO / Regulated Environments)
• Familiarity with NIST 800-53 control families.
• RMF lifecycle awareness and ATO sustainment processes.
• Continuous Monitoring (ConMon) principles.
• Audit artifact collection and POA&M tracking.
• Automation & Operational Optimization
• Process improvement methodologies.
• Development and maintenance of SOPs, playbooks, and escalation matrices.
• Performance & Executive Reporting
• Development of KPI dashboards.
• Trend analysis and operational health reporting.
• Capacity planning metrics.
• Translation of technical risk into executive-level summaries.

• Professional Skills
• Excellent problem-solving abilities combined with strong verbal and written communication skills to effectively interact with both technical and non-technical stakeholders.
• Flexibility and availability to participate in on-call rotations or work outside regular business hours to resolve critical issues.

Preferred Additional Skills:

• Advanced Tooling & Automation
  • PowerShell or Python automation.
  • SIEM integration (Splunk, Sentinel).
  • API-based workflow automation.
• Virtualization & Infrastructure Awareness
  • VMware vSphere or Hyper-V familiarity.
  • High-availability and failover concepts.
  • Backup validation and disaster recovery exercises.
• Advanced Compliance Exposure
  • STIG remediation coordination.
  • FISMA reporting support.
  • Experience in classified or air-gapped environments.
• Certifications (Preferred but Not Required)
  • ITIL
  • PMP

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

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