Systems Administrator

Silgan Plastics; Chesterfield (MO); On-site; USD 90,000 - 120,000; Full time

Job summary

Silgan Plastics is seeking a Systems Administrator in Chesterfield, MO to maintain and improve our enterprise infrastructure, including Windows Server, AD, virtualization, storage, and cloud services. The role emphasizes reliability, security, and scalable technology solutions for the business.

The ideal candidate will have 7+ years of experience, strong communication skills, and a proactive approach to modernization and automation within an IT Operations context.

Qualifications

• Bachelor's degree preferred; equivalent experience considered.
• 7+ years of progressive Systems Administration or Infrastructure Engineering experience.
• Experience managing enterprise environments across multiple locations.

Responsibilities

• Administer and support Microsoft Windows Server environments.
• Manage Active Directory, Group Policy, DNS, DHCP and related services.
• Maintain virtualization platforms including VMware vSphere.
• Monitor and optimize server performance, capacity, and availability.
• Implement and maintain disaster recovery and business continuity solutions.
• Administer Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive).
• Support Entra ID administration, identity governance, and conditional access.
• Lead infrastructure projects (migrations, upgrades, deployments).
• Document procedures, architectures, standards, and support knowledge.
• Provide Tier III escalation support and collaborate with cross-team stakeholders.

Skills

Strong communication

Customer-service mindset

Problem-solving

Automation mindset

Education

Bachelor's Degree in Computer Science or related field

Tools

VMware vSphere

Microsoft 365 Administration

Windows Server Administration

Active Directory & Group Policy

DNS & DHCP

Pure Storage

Backup & Disaster Recovery

PowerShell Scripting & Automation

Job description

For more than 50 years, Silgan Plastics has defined the plastic bottling industry from technical innovation to creative packaging solutions. No matter what your packaging needs, Silgan can and will handle them. From creation to commercialization, our customized approach to each customer's requirements is what sets us apart from the rest.

Position Summary

The Systems Administrator is responsible for the administration, maintenance, support, and continuous improvement of the organization's enterprise infrastructure. This role provides technical expertise across servers, virtualization, storage, identity management, and Microsoft cloud technologies while ensuring the stability, security, and performance of critical business systems. The ideal candidate possesses 5+ years of direct systems administration experience and demonstrates eAective communication skills, a customer-service mindset, forward-thinking problem-solving abilities, and a passion for continuous improvement. This individual will serve as a technical leader within the IT Operations team, driving modernization initiatives and partnering across the business to deliver reliable, scalable, and secure technology solutions.

Key Responsibilities

Infrastructure Administration

Administer and support Microsoft Windows Server environments.

Manage Active Directory, Group Policy, DNS, DHCP, and related domain services.

Maintain enterprise virtualization platforms, including VMware vSphere and associated technologies.

Monitor and optimize server performance, availability, and capacity planning.

Implement and maintain disaster recovery and business continuity solutions.

Perform system upgrades, patch management, and technology lifecycle management.

Administer Microsoft 365 services, including Exchange Online, Teams, SharePoint, and OneDrive.

Support Microsoft Entra ID administration, identity governance, conditional access, and authentication technologies.

Participate in cloud adoption and modernization initiatives.

Manage user provisioning, licensing, security policies, and role-based access controls.

Storage Administration

Administer and support enterprise storage environments including Pure Storage platforms.

Monitor storage health, performance, replication, and capacity utilization.

Develop and execute storage improvement and optimization strategies.

Security & Compliance

Maintain system security configurations and assist with cybersecurity initiatives.

Support vulnerability remediation eAorts and security hardening activities.

Participate in security audits, compliance assessments, and incident response eAorts.

Ensure adherence to established IT governance, policies, and standards.

Project Delivery & Continuous Improvement

Lead or participate in infrastructure projects such as migrations, upgrades, consolidations, and system deployments.

Evaluate emerging technologies and recommend improvements that increase reliability, security, eAiciency, and business value.

Identify opportunities for automation and process optimization.

Document technical procedures, architecture, standards, and support knowledge.

Operational Support

Serve as a Tier III escalation point for complex infrastructure issues.

Collaborate with help desk, network, security, and application teams to resolve incidents and prevent recurring issues.

Participate in on-call support and after-hours maintenance activities as required.

Maintain a strong customer-service orientation while supporting end users and business stakeholders.

Required Qualifications Education

Bachelor's Degree in Computer Science, Information Systems, or a related field preferred. Equivalent combination of education and relevant experience will be considered.

Experience

Minimum of 7 years of progressive experience in Systems Administration or Infrastructure Engineering.

Experience supporting enterprise environments with multiple locations and diverse business operations.

Technical Skills Required

Experience with any combination of the following technologies:

VMware vSphere

Microsoft 365 Administration

Windows Server Administration

Active Directory & Group Policy

Domain Services (DNS, DHCP)

Pure Storage

Backup and Disaster Recovery Solutions

PowerShell Scripting and Automation

Other Skills Required

The successful candidate will demonstrate

Strong communication and interpersonal skills with the ability to eAectively collaborate across technical and non-technical teams and build trusted relationships throughout the organization.

Forward-thinking and strategic mindset with the ability to anticipate infrastructure needs, evaluate emerging technologies, and recommend solutions that support business objectives.

Continuous improvement mentality, consistently seeking opportunities to enhance system reliability, security, eAiciency, automation, and service delivery.

Exceptional problem-solving and analytical skills with the ability to identify root causes, develop eAective solutions, and drive issues to resolution.

Ownership and accountability in managing critical systems, projects, and operational responsibilities while maintaining a high standard of quality and reliability.

Customer-focused approach with a commitment to delivering excellent service and maintaining positive relationships with internal stakeholders.

Strong organizational and time management skills with the ability to manage multiple priorities in a fast-paced environment.

Collaborative attitude with a willingness to share knowledge, mentor peers, and contribute positively to the culture and success of the IT organization.

The above job description is meant to describe the general nature and level of work being performed; it is not intended to be construed as an exhaustive list of all responsibilities, duties and skills required for the position.

Silgan will provide reasonable accommodation for qualified applicants and employees with disabilities unless doing so would cause undue hardship.

This job description in no way states or implies that these are the only duties to be performed by the associate occupying this position. Associates will be required to follow any other job-related instructions and to perform other job-related duties requested by their supervisor in compliance with Federal and State Laws.

Requirements are representative of minimum levels of knowledge, skills and/or abilities. To perform this job successfully, the employee must possess the abilities or aptitudes to perform each duty proficiently. Continued employment remains on an “at-will” basis.

Silgan Plastics is an Equal Opportunity Employer. We consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, or the presence of a disability, which would not prevent the performance of essential job duties with, or without reasonable accommodation of any other protective status.

Silgan Plastics is a drug-free workplace.