Sr Systems Administrator

About the Role

Peraton has an opening for a Sr Systems Administrator with a comprehensive skill set in E-Mail systems, virtualization technologies, and Windows Active Directory. The person who takes this role will spend their first 6 weeks (orientation) onsite, 5 days a week, in our Boston office at 1 Ashburton Place. Candidates will ONLY be considered if they live local to Boston. Candidates who live more than 2 hours from downtown Boston will not be considered. After the orientation period, the person in this role will be on a hybrid onsite schedule with a minimum of 3 days per week at the same Boston location. The role could revert to full time onsite in Boston 5 days a week at any time.

Responsibilities

• Manage all Windows / Active Directory environments, including both physical and virtual systems and the services running on them.
• Support on-premise E-Mail systems, including Microsoft Exchange E-Mail servers and Proofpoint E-Mail security appliances.
• Implement and manage DNS-based E-Mail authentication protocols such as DKIM, SPF, DMARC.
• Monitor the health and performance of Microsoft Exchange environments; keep Exchange patched and up to date.
• Work with backup administrators to maintain valid, tested, and secure backups of the E-Mail system, including participation in monthly restore testing.
• Manage E-Mail retention and archiving policies to comply with legal requirements and maintain healthy Exchange mailboxes.
• Manage E-Mail security devices like Proofpoint and DNS-based E-Mail authentication to secure communications.
• Assist in searches of E-Mail related to public record requests.
• Monitor and maintain the performance of Microsoft Windows/Active Directory and VMware virtualization environments.
• Make recommendations and implement changes to improve the performance and resiliency of MS Exchange and VMware environments.
• Manage hardware buildouts to expand and refresh available physical resources.
• Manage Active Directory core services: DHCP, DNS, group policy design, OU structure, and AD replication.
• Test, upgrade, and migrate virtual environments as new versions of software and hardware become available.
• Participate in rotation for after-hours support.
• Keep ESXi and vCenter patched and updated to the latest supported levels.
• Create a strategy to right-size guest machines and optimize ESXi host performance, reliability, and availability.
• Architect and test upgrades/migration of old host servers/clusters to align resources with business requirements.
• Work with the Cyber Security Team to harden the VMware environment guided by CISA recommendations.
• Create and document procedures regarding virtualization standards within the organization.
• Set up layers of protection against ransomware and other modern-day threats to data.

Qualifications

Basic Qualifications

• Bachelor's degree and 5 years of experience, or an Associate's degree and 7 years of experience, or a High School diploma and 9 years of experience.
• Must be a U.S. Citizen or Green Card holder and able to pass a background check.
• Demonstrated hands-on experience performing administration, troubleshooting, patching, and support of MS Exchange, VMware virtual infrastructures, and Windows AD.
• Experience and in-depth understanding of Active Directory, DNS, and other Windows core services.
• Experience managing private cloud environments and developing highly available virtualized environments, including defining monitoring standards, operational procedures, and growth plans.
• Knowledge and experience with HPE ProLiant servers.
• Proven experience designing and implementing an enterprise-wide virtual infrastructure using ESXi v8/v9.
• Demonstrated experience working with vendors and end users on system troubleshooting.
• Ability to automate processes through scripting (PowerShell, Perl, VBS).
• Ability to handle multiple tasks while prioritizing and delivering results on time.
• Excellent verbal and written communication skills.
• Strong analytical skills and ability to think strategically with technical vision.
• Attention to detail and strong organizational skills.

Preferred Qualifications

• Microsoft/VMware certifications preferred.
• ITIL certification preferred.

Pay

Target salary range: $80,000 - $128,000. Salary is determined by various factors, including scope and responsibilities of the position, individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

Benefits

Peraton offers eligible employees a variety of benefits including:

• Medical, dental, and vision insurance.
• Life insurance, health savings account, short/long term disability.
• Employee Assistance Program (EAP).
• Parental leave.
• 401(k) retirement plan.
• Paid time off (PTO) for vacation and company-paid holidays.