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Description

We are looking for an experienced Sr. Systems Engineer to join our team in Irvine, California. In this role, you will play a critical role in ensuring the seamless operation and security of our critical business applications and infrastructure while driving innovation through the adoption of modern technologies and engineering best practices.

This is a hybrid role, 2 days a week working from home.

Responsibilities:

+ Provide strategic direction and technical leadership for infrastructure design, implementation, and optimization.

+ Lead architectural discussions for Windows systems, cloud infrastructure (AWS, Azure), and hybrid solutions.

+ Manage and maintain Active Directory (AD), DNS, DHCP, and other critical systems.

+ Design, deploy, and maintain scalable, highly available solutions using cloud-native architectures in AWS and Azure.

+ Oversee the configuration and management of network infrastructure, including firewalls, switches, and load balancers.

+ Lead automation efforts for infrastructure deployment, configuration management using tools like PowerShell, Python, and Terraform.

+ Architect, implement, and manage LAMP/LEMP stack systems.

+ Establish comprehensive system monitoring and alerting for all environments to ensure high availability and rapid incident response (New Relic, Datadog, Prometheus, Grafana, Dynatrace).

+ Drive backup, disaster recovery (DR), and business continuity planning, including annual DR testing and refinement.

+ Act as the lead technical resource for the design and deployment of identity management solutions (SSO, MFA) using tools like Okta and Azure AD.

+ Collaborate with DevOps and development teams to optimize CI/CD pipelines, infrastructure as code (IaC), and containerized workloads.

+ Backup procedures to safeguard data security, ensure resource availability, maintain data integrity, and meticulously log and review application activities.

+ Mentor and coach junior system administrators and engineers, fostering skill development and knowledge sharing.

+ Own system documentation, process improvements, and adherence to IT best practices.

+ Troubleshoot and resolve complex system, network, and application issues efficiently.

Requirements

+ Minimum of 7 years of experience in systems engineering or infrastructure roles with a focus on architecture, implementation, and operational excellence.

+ Minimum of 5 years of experience in AWS and/or Azure environments, including designing and managing hybrid cloud solutions.

+ Proven expertise in network design and administration, including firewalls, VPNs, and high-performance switches.

+ Strong background in Windows Server administration and Linux-based environments (LAMP/LEMP stacks).

+ Hands-on experience supporting Microsoft 365 applications including (but not limited to): Outlook, Word, Excel, PowerPoint, OneDrive, Teams and SharePoint.

+ Experience with enterprise identity and access management solutions, such as Okta or Azure AD.

+ Advanced proficiency in scripting and automation using PowerShell, Python, or similar technologies.

+ Hands-on experience with infrastructure monitoring tools and SIEM platforms, Deployment, Configuration. (New Relic, Datadog, Splunk, Zabbix, Prometheus, Grafana, Dynatrace)

+ Proven track record in disaster recovery planning, testing, and execution.

+ IT certifications such as Microsoft Certified Systems Engineer (MCSE), AWS Certified Solutions Architect, or Azure Solutions Architect are highly desirable.

+ Experience with Microsoft Security Stack not limited to ATP, Intune, Sentinel, Defender Endpoint

Technology Doesn't Change the World, People Do.®

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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