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Senior Systems Engineer, IT

Irvine, California · Information Technology
 
Essential Duties and 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.
 
Supervisory Responsibilities
  • Lead a team of engineers and administrators, providing mentorship, performance feedback, and fostering a culture of innovation and continuous learning.
  • Oversee project planning, resource allocation, and task prioritization for the infrastructure team.
 
Qualifications, Education and Experience
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
 
  • 7+ years of experience in systems engineering or infrastructure roles with a focus on architecture, implementation, and operational excellence.
  • 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
 
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Skills and Competencies
  • Strong technical acumen and problem-solving skills with a focus on proactive system improvements.
  • Excellent project management and organizational skills, with the ability to manage multiple initiatives simultaneously.
  • Exceptional communication skills, including the ability to present complex technical concepts clearly to diverse audiences.
  • Customer-focused mindset with the ability to align technical solutions with business objectives.
Benefits
Our benefit offerings include: Medical, dental, vision, wellness programs, EAP counseling services, FSA & HSA, company sponsored life insurance for employee, voluntary life insurance for employee, spouse and child, AD&D Insurance, voluntary short-term and long-term disability, critical illness insurance, accident insurance, legal assistance, pet insurance, living will and trust preparation discounts, commuter program, annual walking challenge, employee appreciation events and monthly sales awards. 

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