Senior Systems Administrator

At KPFF Consulting Engineers, we are more than just an engineering design firm. For over 65 years, we have dedicated ourselves to innovative, sustainable engineering that shapes the built environment and tackles complex infrastructure challenges. Our team culture emphasizes balance, growth, and well‑being, supporting each member’s professional journey with flexibility, generous benefits, and a collaborative approach to work‑life integration.

With over 1,500 professionals across 36 offices nationwide, KPFF’s decentralized structure allows each office the flexibility to pursue projects aligned with their regional strengths. Learn more at

KPFF is seeking an experienced Senior Systems Administrator to support and enhance our enterprise technology infrastructure across multiple offices. This role is responsible for maintaining the reliability, security, and performance of the firm's systems, networks, and cloud platforms while providing advanced technical support for critical business operations.

Working closely with the Director of Technology and the broader IT team, this position combines hands‑on technical administration with infrastructure improvement initiatives. The ideal candidate enjoys solving complex technical challenges, balancing operational support with project work, and partnering with internal stakeholders and external vendors to deliver secure, scalable technology solutions.

Primary Responsibilities

Infrastructure & Network Administration

• Administer and maintain enterprise network infrastructure, including firewalls, VPNs, switching, routing, VLANs, WAN connectivity, and network security.
• Monitor system and network health, performance, and capacity to ensure reliable operations across multiple offices.
• Troubleshoot complex connectivity and infrastructure issues affecting office and remote users.
• Coordinate internet service installations, upgrades, and vendor escalations.
• Implement and maintain network security policies, firewall rules, and access controls.
• Administer Microsoft 365, Active Directory, Microsoft Entra , and other enterprise applications.
• Manage user accounts, permissions, licensing, authentication, and access throughout the employee lifecycle.
• Support servers, virtualization environments, storage systems, backup solutions, and cloud infrastructure.
• Diagnose and resolve system, application, authentication, and endpoint issues while maintaining high system availability.

Security & Operational Support

• Support the implementation and maintenance of infrastructure security controls and best practices.
• Participate in incident response, vulnerability remediation, and infrastructure hardening efforts.
• Respond to escalated technical issues and provide advanced troubleshooting across network, systems, and cloud environments.
• Communicate planned maintenance, outages, and service interruptions to stakeholders.

Projects & Continuous Improvement

• Lead or contribute to infrastructure projects, including system upgrades, migrations, and technology modernization initiatives.
• Research and recommend solutions that improve reliability, security, scalability, and operational efficiency.
• Maintain accurate technical documentation, network diagrams, system configurations, and change records.
• Collaborate with IT leadership to support strategic technology initiatives and infrastructure planning.
• Partner with hardware, software, cloud, and telecommunications vendors to resolve issues and coordinate infrastructure changes.
• Assist with evaluating technology solutions, procurement activities, and implementation planning.
• Build effective working relationships with employees across the firm while delivering exceptional internal customer service.

Required

• Bachelor's degree in Information Technology, Computer Science, or a related field, or an equivalent combination of education and professional experience.
• Four or more years of experience administering enterprise systems and network infrastructure.
• Strong knowledge of TCP/IP networking, DNS, VPNs, VLANs, routing, switching, and firewall technologies.
• Experience administering Microsoft 365, Active Directory, Microsoft Entra , and cloud‑based…