Senior Systems Engineer

Prosum

Century City, CA

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JOB DETAILS

SKILLS

BGP, Certificate Authorities, Computer Science, Computer Security, Customer Support/Service, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Data Recovery, Desktop PC, Digital Certificates, Disaster Recovery, Document Management, Documentation Standards, Enterprise Applications, Financial Control, Firewall Administration, Firewalls, Healthcare, High Availability, Identify Issues, Information Technology & Information Systems, Laptop PC, Legal, Link Aggregation Control Protocol (LACP), Local Area Network (LAN), Mail Processing, Microsoft Active Directory, Microsoft Exchange Server, Microsoft Windows Server, Microsoft Windows System Administration, NAT (Network Address Translation), Network Administration/Management, Network Attached Storage (NAS), Network Connectivity, Network Performance/Analysis, Network Routing, Network Switching, Onboarding, Open Shortest Path First Protocol (OSPF), Operations Processes, Printers, Problem Solving Skills, Process Improvement, Professional Services, Public Key Infrastructure (PKI), Python Programming/Scripting Language, Replication and Remote Mirroring, Root Cause Analysis, SQL (Structured Query Language), SSL-TLS (Secure Socket Layer - Transport Layer Security), Scripting (Scripting Languages), Software Patches, Spanning Tree Protocols, Systems Administration/Management, Systems Engineering, Team Player, Technical Support, Telephony, VLAN (Virtual Local Area Network), VMWare, VPN (Virtual Private Network), Virtualization, Windows PowerShell

LOCATION

Century City, CA

POSTED

30+ days ago

Senior Systems Engineer
Location: Los Angeles, CA (Hybrid)
Schedule: Onsite during onboarding period, then hybrid schedule available
Compensation: $135,000$150,000 base salary + bonus potential
Overview
A professional services organization is seeking a Senior Systems Engineer to support and enhance enterprise infrastructure across systems, networking, virtualization, and security technologies. This is a senior-level, hands-on engineering role responsible for maintaining highly available infrastructure environments while contributing to modernization, stability, and operational excellence initiatives.

This opportunity is ideal for an experienced infrastructure engineer who thrives in complex enterprise environments and enjoys working across both systems and networking disciplines.
Key Responsibilities

Administer, maintain, and optimize enterprise infrastructure environments including virtualization, storage, and networking platforms
Deploy and support VMware, VxRail, and NAS/storage solutions
Design, configure, and troubleshoot Layer 2 and Layer 3 network infrastructure
Manage routing and switching technologies including BGP, OSPF, VLANs, spanning tree, static routing, and EtherChannel/LACP
Configure and maintain enterprise firewall environments including VPNs, NAT policies, and security rules
Troubleshoot WAN/LAN connectivity, fiber, routing, and network performance issues
Manage SSL/TLS certificates and support PKI/Certificate Authority administration
Partner with internal security teams on vulnerability remediation, segmentation, and infrastructure hardening initiatives
Administer Windows Server environments with focus on performance, resiliency, and high availability
Manage Active Directory, DNS, DHCP, Group Policy, and domain controller replication
Support clustering technologies for file services and SQL environments
Maintain Hybrid Exchange environments including mailbox administration and mail flow management
Implement and support patch management, endpoint deployment, and device management solutions
Lead backup, business continuity, and disaster recovery efforts using enterprise backup platforms
Support internal IT infrastructure including desktops, laptops, printers, telephony, and core enterprise services
Collaborate with service desk and infrastructure teams to resolve escalated technical issues and perform root cause analysis
Contribute to infrastructure documentation, operational standards, and process improvement initiatives

Required Qualifications

5+ years of experience in Systems Administration, Infrastructure Engineering, or Systems Engineering roles
Strong hands-on experience supporting enterprise infrastructure and networking environments
Experience with:
- Windows Server environments
- Active Directory, DNS, DHCP, and Group Policy
- VMware and virtualization technologies
- Enterprise networking and routing/switching
- Firewall administration (Palo Alto and/or Meraki preferred)
- Hybrid Exchange environments
- Backup and disaster recovery solutions
- SSL/TLS certificate management and PKI concepts
Scripting or automation experience using PowerShell, Python, SQL, or similar technologies
Experience with endpoint management and deployment platforms such as Intune, PDQ, or similar tools
Strong troubleshooting and problem-solving skills in complex enterprise environments
Bachelors degree in Computer Science, Information Technology, Engineering, or equivalent professional experience

Preferred Qualifications

Experience supporting legal, financial, healthcare, or other highly regulated environments
Familiarity with enterprise business applications and document management systems
Industry certifications such as CCNA, CCIE, CISSP, VMware, Microsoft, or related infrastructure/security certifications

Work Environment

Collaborative infrastructure engineering team with significant technical ownership
Opportunity to work across enterprise systems, networking, virtualization, and security initiatives
Hybrid work flexibility available following onboarding period
Stable, long-term environment with exposure to enterprise-scale infrastructure projects

About the Company

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