Sr Infrastructure, Cloud & Security Systems Admin 3

NineFX, Inc.

Fort Meade, MD, United States

16 days ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Working hours

Regular working hours

Job source

www.clearancejobs.com

Tech stack

Microsoft Windows Application Programming Interfaces (APIs) Amazon Web Services Amazon Elastic Compute Cloud Application Integration Architecture Bash Shell Unix Cloud Computing Security Cyber Security Computer Networks Continuous Integration Linux

+15 more

Domain Name System (DNS) Python (Programming Language) Public Key Infrastructure Windows PowerShell Red Hat Enterprise Linux Ansible Service-Oriented Architecture VMware VSphere SSL Certificate Management Gitlab Kubernetes Information Technology Nessus Terraform Docker

Job description

The System Administrator Lvl 3 provides senior-level support for implementing, troubleshooting, securing, and maintaining enterprise IT systems. This role oversees system infrastructure, ensures reliable operations across servers, networks, storage, and endpoints, and provides Tier 1 and Tier 2 support for escalated technical issues., * Support implementation, troubleshooting, and maintenance of IT systems and infrastructure components.

Manage daily configuration, operations, monitoring, and issue resolution for server, storage, network, and mobile systems.
Provide Tier 1 and Tier 2 help desk support, including problem identification, diagnosis, and resolution.
Communicate issue status, escalations, and updates to agency management and internal stakeholders.
Support dispatch system operations and participate in hardware-related issue resolution.
Configure and administer UNIX and Windows operating systems; perform OS installation, troubleshooting, optimization, and network component configuration.
Apply and maintain compliance with DISA STIGs, CVEs, and IAVA requirements.
Administer PKI infrastructure, certificate management, DNS, and IP resources.
Work with VMware vSphere/vCenter and related APIs.
Support Amazon AWS EC2 operations and associated services.
Provide basic support for containers (Docker, Kubernetes) and GitOps/CI/CD workflows (GitLab).

Requirements

Active TS/SCI with Full Scope Polygraph (must already be held)
IAT Level II (Security+ CE, GSEC, CySA+, CCNA Security, or GICSP)
15+ years of system administration experience supporting complex enterprise or DoD systems.
Bachelor’s degree in a technical field (or 5 additional years of experience in lieu of degree).
Hands-on administration experience with Linux OS (RHEL9, Talos).
Experience building host image templates using automation tools such as Terraform, Packer, SALT, Ansible, RHEL Satellite, and Jumphost technologies.
Familiarity with Trellix Endpoint Security, Nessus Security Center, UAM, rsyslog, and auditd.
Ability to script and automate tasks using Python, PowerShell, or Bash.
Understanding of system interdependencies within service-oriented architectures.
Proven ability to analyze and resolve complex hardware, software, and application integration issues.