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Chesterfield, Missouri, United States
Onsite
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 effective 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.
Microsoft 365 G Cloud Administration
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 G Compliance
Maintain system security configurations and assist with cybersecurity initiatives.
Support vulnerability remediation efforts and security hardening activities.
Participate in security audits, compliance assessments, and incident response efforts.
Ensure adherence to established IT governance, policies, and standards.
Project Delivery G 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, efficiency, 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 Ǫualifications 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
Microsoft Entra ID
Windows Server Administration
Active Directory C Group Policy
Domain Services (DNS, DHCP)
Pure Storage
Microsoft Azure Services
Backup and Disaster Recovery Solutions
PowerShell Scripting and Automation
Endpoint Management Platforms
Other Skills Required:
The successful candidate will demonstrate:
Strong communication and interpersonal skills with the ability to effectively 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, efficiency, automation, and service delivery.
Exceptional problem-solving and analytical skills with the ability to identify root causes, develop effective 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.
LIMITATIONS AND DISCLAIMER (Non-Canada)
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.
All job requirements are subject to possible modification to reasonably accommodate individuals with disabilities. Some requirements may exclude individuals who pose a direct threat or significant risk to the health and safety of themselves or other employees.
This job description in no way states or implies that these are the only duties to be performed by the employee occupying this position. Employees 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 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 is a drug-free workplace.
LIMITATIONS AND DISCLAIMER – Canada
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.
All job requirements are subject to possible modification to accommodate individuals with disabilities. Silgan endeavors to provide accommodations to individuals with disabilities to perform their essential job duties as long as the accommodation does not pose an undue hardship on the company’s operations and does not pose a direct threat of substantial harm to the employee or others.
This job description in no way states or implies that these are the only duties to be performed by the employee occupying this position. Employees will be required to follow any other job-related instructions and to perform other job-related duties requested by their supervisor.
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. Employment is always subject to the Silgan’s rights as employer, including the right to end employment in accordance with Provincial Law.
Silgan is an equal opportunity employer. We consider applicants for all positions without regard to any ground protected under Provincial human rights laws.
Silgan is a drug-free workplace.