System Administrator Lvl 3 - Cloud & Enterprise Infrastructure

NineFX, Inc.

Fort Meade, MD, United States

about 2 months ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

5 years minimum

Working hours

Regular working hours

Job source

clearancejobs.com

Tech stack

Microsoft Windows Active Directory Amazon Web Services Amazon Elastic Compute Cloud Amazon S3 Bash Shell Unix Client Server Models Cloud Computing Cyber Security Computer Networks Linux

+18 more

Domain Name System (DNS) Identity and Access Management Networking Hardware Linux Distribution McAfee VirusScan Windows Servers Red Hat Enterprise Linux Cloud Services Ansible Service-Oriented Architecture Systems Integration Scripting Cloud Platform System Saltstack Amazon Virtual Private Cloud (VPC) Information Technology Tenable Nessus Hardware Infrastructure

Job description

The System Administrator (SA) Level 3 provides senior level operational support, troubleshooting, and technical leadership for enterprise IT systems across cloud and on premise environments. This role manages system infrastructure, supports complex integrations, oversees Tier 1/Tier 2 escalations, and ensures the reliability, security, and performance of UNIX, Windows, and cloud based systems., * Support implementation, maintenance, and troubleshooting of enterprise IT systems

Provide Tier 1 and Tier 2 problem identification, diagnosis, and resolution
Manage daily configuration, operation, and monitoring of IT systems
Assist users with accessing and using systems and applications
Resolve issues across client/server, storage, network devices, and mobile devices
Escalate and communicate technical status updates to agency leadership
Provide support for dispatch systems and hardware problem resolution
Optimize system operations, perform capacity planning, and analyze performance
Provide detailed analysis and feedback for escalated issues
Configure and manage UNIX and Windows operating systems
Install OS software, troubleshoot system integrity, and configure network components
Implement OS enhancements to improve reliability and performance
Support system design and mission architecture as part of enterprise engineering teams
Apply working knowledge of system interdependencies within Service Oriented Architectures (SOA)
Analyze and resolve complex issues involving server hardware, applications, and software integration

Requirements

Experience administering AWS cloud resources, including EC2, S3, VPC, IAM, and other core AWS services
Expertise with Windows Server 2019/2022, Active Directory, DNS, Certificate Authorities, and Windows 10/11
Strong administration experience with Linux distributions (RHEL 8/9, Amazon Linux 2023) within AWS environments
Proficiency with automation tools:
SaltStack
Ansible
Bash and Python scripting
Ability to build and maintain automation for provisioning, configuration, and deployments
Experience deploying and maintaining security related enterprise services:
McAfee/Trellix agents & ePO
Tenable Nessus agents
BigFix
Familiarity with tracking and remediating security vulnerabilities across diverse environments
Experience supporting robust, production grade cloud environments and on premise servers, * Top Secret/SCI with Full Scope Polygraph - No Exceptions
15 years of System Administration experience supporting programs of similar scope and complexity
Bachelor’s degree in a technical discipline
Five (5) additional years of SA experience may substitute for the degree
Must have one IAT Level II certification (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP)