Senior Systems Administrator – Mission-Critical Infra (On-Site)

Rincon-Research-Corporation; Palm Bay (FL); On-site; USD 108,000 - 122,000; Full time

Benefits offered by this job

ESOP

401(k) Plan

Medical & Dental Insurance

Life Insurance

Disability Insurance

FSA / HSA

Job summary

Rincon Research Corporation is seeking a Lead Systems Administrator in Palm Bay, Florida. The role focuses on enterprise and air-gapped systems, with on-site duties and a requirement for strong patching, compliance, and storage management capabilities.

The ideal candidate will bring 3–5 years of relevant experience, deep Linux administration skills, and familiarity with security tooling. This on-site position offers a competitive salary and benefits package in a defense-relevant environment.

Qualifications

• US Citizenship is required.
• Active TS/SCI Security Clearance required.
• Experience with Special Access Systems.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or 5 years of equivalent hands-on experience.

Responsibilities

• Provide end-user technical support for enterprise and air-gapped systems.
• Manage server and storage provisioning, patching, and compliance.
• Deploy, configure, and maintain RF and hardware systems.
• Travel to remote sites for deployments and on-site support.
• Build and maintain monitoring dashboards and alerting.
• Maintain documentation and security vulnerability remediation.
• Participate in capacity planning and infrastructure upgrades.

Skills

Linux systems

Scripting (Bash/Python)

Networking basics

Observability tools

Education

Bachelor's degree or 5 years hands-on experience

Tools

Ansible

Puppet

Terraform

Nessus

Rapid7

VMware

Job description

Rincon Research Corporation is seeking a Lead Systems Administrator in Palm Bay, Florida. The role focuses on enterprise and air-gapped systems, with on-site duties and a requirement for strong patching, compliance, and storage management capabilities.

The ideal candidate will bring 3–5 years of relevant experience, deep Linux administration skills, and familiarity with security tooling. This on-site position offers a competitive salary and benefits package in a defense-relevant environment.