Systems Administrator, Senior with Security Clearance

Caelum Research Corporation; Maryland; On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Medical

Dental

Vision

Life Insurance

Short and Long Term Disability

Paid Leave

Holidays

401(k) Retirement Plan

Tuition/Training Assistance

Job summary

Caelum Research Corporation is seeking a Senior Systems Administrator at Aberdeen Proving Ground, MD, to lead Windows/AD administration, VMware management, and security configurations in a DoD contract environment.

The role requires a Master’s degree, Security+CE, and 5+ years of leadership in large IT settings; expertise in AD, VMware, and scripting is essential for system optimization and rapid incident response.

Qualifications

• Master’s Degree in a directly related field and at least 5 years' experience; lower-level degrees with additional experience considered.
• Must possess a Security+CE (or equivalent DOD Directive 8570.1 IAT II)
• Must hold at least one Computing Environment certification (e.g. MCSE, MCSA) or obtain within 6 months
• Five+ years of experience leading five or more employees
• Expertise in Active Directory configuration and policy administration
• Experience with VMware and troubleshooting/monitoring
• Experience with TCP/IP, firewalls and routing
• Experience with performance tuning, capacity planning and high-availability systems
• Experience with automated build/deploy/configuration management and enterprise monitoring

Responsibilities

• Configure and administer Windows AD including policy management
• Administer Windows Server systems, troubleshoot and support
• Manage VMware environment including deployment, patching and hardening
• Monitor Windows events and performance on hosted systems
• Resolve complex configuration and networking issues
• Handle security issues including identity management and retention policies
• Write and use scripts in Bash, PowerShell, Python, Ruby, or Perl
• Support high-availability, clustered systems and load balancing
• Maintain storage environments and CISCO UCS integration
• Support HBSS configuration management and troubleshooting

Skills

Active Directory

Scripting

Networking

Windows Server

Performance tuning

Capacity planning

Troubleshooting

Education

Master’s Degree

Security+CE

CE certification (e.g. MCSE, MCSA)

Tools

VMware

Linux

Cisco UCS

Job description

POSITION: Systems Administrator – Senior LOCATION: Aberdeen Proving Ground, MD SCOPE:

Responsibilities

Serves as a Senior Systems Administrator on a major IT support contract for the Army Test and Evaluation Command (ATEC) Headquarters Information Systems Directorate (G6) RESPONSIBILITIES:

• Windows Server Active Directory (AD) configuration and administration including policy management
• Performs Windows Server systems administration including troubleshooting, monitoring, and support.
• Manages VMware environment, including systems deployment, patching, STIG/hardening and troubleshooting.
• Windows event and performance monitoring; and management of hosted systems software platforms.
• Resolves complex issues associated with system configuration management, resource sharing and basic networking troubleshooting and problem identification.
• Resolves complex security issues including identity management, records retention, and implements destruction policies.
• Uses and writes operating system commands and scripts, manages disk configurations, maintains hardware and software RAID 1-N, performs migration, backup and recovery using scripting languages, such as Bash, PowerShell, Python, Ruby, and/or Perl.
• Supports performance tuning, capacity planning and bottleneck resolution, administration of Microsoft Servers, building and maintaining high-availability, clustered and scalable systems, and load balancing
• Manages production environments using automated install, automated build and deployment, automated configuration management, enterprise monitoring systems, server virtualization, load balancing, web servers, and application servers.
• Supports storage hardware and environments (i.e. Commvault)
• Works with CISCO Unified Computing System (UCS)
• Supports HBSS configuration management and troubleshooting (e.g. McAfee/Trellix)

Qualifications & Experience

• May lead 5 or more employees
• Master’s Degree in a directly related field and at least 5 years' experience; Lower-level degrees in relevant fields will be considered with additional experience.
• Must possess a Security+CE (or equivalent DOD Directive 8570.1 IAT II)
• Must hold at least one (1) current Computing Environment (CE) certification (e.g. MCSE, MCSA, etc.) or be able to obtain one within 6 months of start
• Five (5) plus years of experience leading five (5) or more employees
• Expertise in Active Directory (AD) configuration and policy administration
• Experience in VMWare systems (or VMWare alternatives) including troubleshooting and monitoring
• Experience in resolving complex issues associated with configuration management. resource sharing and basic networking troubleshooting and problem identification.
• Experience in resolving complex security issues, identity management, records retention, and adhering to destruction policies
• Experience using and writing operating system commands and scripts, and scripting languages, including one or more of Bash, Powershell, Python, Ruby, and/or Perl.
• Experience in TCP/IP, firewalls and routing
• Experience with performance tuning, capacity planning and bottleneck resolution
• Experience in resource allocation and utilization for large databases, disk configuration, including the maintenance of hardware and software RAID 1-N
• Experience in database design, data modeling and query execution, database replication, migration, backup and recovery
• Experience performance tuning, capacity planning and bottleneck resolution, building and maintaining high-availability, clustered and scalable systems
• Experience managing a production environment with the following: automated install, automated build and deployment, automated configuration management, enterprise monitoring systems, server virtualization, load balancing, web servers, and application servers, Microsoft server operating systems and middleware, server configuration and installation, performance and network monitoring tools, operating systems upgrades and migrations
• Experience managing or working with Windows Server and Linux Operating systems and associated configuration tools is desirable.
• Experience with Cisco UCS is a plus

Security Clearance & Salary

SECURITY CLEARANCE: DoD Secret SALARY: $110 – 130K

Benefits

We designed our employee benefits program around the goal of improving the quality of life for each employee. We offer some of the most competitive benefits in the industry to include:

• Medical
• Dental
• Vision
• Life Insurances
• Short and Long Term Disability
• Paid Leave
• Holidays
• Bereavement
• Military
• Jury Duty
• 401(k) Retirement Plan
• Flexible Spending Account
• Dependent Care
• Health Savings Account
• Tuition/Training Assistance
• Referral Bonuses