← All roles

Senior IT Systems Engineer

Freeform· Information Technology
Apply on company site
Los Angeles, CA$160k - $215kfull-timePosted 4d ago

About the role

Senior IT Systems Engineer responsible for building and operating the systems that connect people, factory, and data across identity, endpoints, servers, storage, cloud, Kubernetes, network, and security. On-site in Los Angeles area, with a fast-moving, hands-on, highly technical environment focused on building custom solutions.

Responsibilities

  • Run Microsoft 365, Entra ID, and Azure in a hybrid setup with on-prem Active Directory, including Entra Connect, conditional access, RBAC, and licensing
  • Manage the device fleet in Intune: enrollment, compliance, app deployment, Autopilot, and patching
  • Build and maintain Windows Server (AD DS, DNS, DHCP, Group Policy, RADIUS/NPS) and hardened Ubuntu and Red Hat servers
  • Run virtualization and SAN storage (Pure Storage, HPE 3PAR over iSCSI and NFS), from provisioning and replication to capacity planning
  • Run and manage AWS infrastructure, including EKS, S3, IAM and VPC networking, with ownership of access control, monitoring and cost
  • Administer Kubernetes both on-prem and in EKS: cluster builds and upgrades, networking and ingress, storage, RBAC, and troubleshooting workloads
  • Design and maintain the Layer 2/3 network and own segmentation across user, server, management, OT, and guest zones
  • Operate Defender XDR, Sentinel, and pfSense firewalls: tune detections, investigate incidents, and drive vulnerability remediation and least-privilege access
  • Design and build custom solutions where off-the-shelf tools fall short, and automate repetitive work
  • Act as the senior escalation point for infrastructure incidents and lead root-cause analysis
  • Document what you build in runbooks and diagrams, and mentor junior IT staff
  • Join the on-call rotation and planned after-hours maintenance windows

Qualifications

  • 7+ years in systems administration or infrastructure engineering, 3+ in a senior or lead role, owning a mixed Windows, Linux, cloud, and network environment
  • Experience with Hybrid Microsoft 365, Intune, and Azure: on-prem AD synced to Entra ID, hybrid join, co-existence, and migration
  • Windows Server DNS, DHCP, and RADIUS/NPS in production
  • Ubuntu and Red Hat: systemd, storage, networking, hardening, and command-line troubleshooting
  • vSphere, Hyper-V, or OpenShift, plus SAN storage over iSCSI and NFS (hands-on with Pure Storage and HPE 3PAR)
  • AWS (EKS, S3, IAM) / Azure / GCP
  • Kubernetes (on-prem and in the cloud)
  • Layer 2/3 networking: VLANs, ACLs, segmentation, MLAG, and LACP
  • Defender XDR, Sentinel, and pfSense administration
  • PowerShell and Bash scripting
  • Clear written communication with technical and non-technical audiences

Skills

Required:Microsoft 365IntuneWindows ServerLinux (Ubuntu, Red Hat)Virtualization & SANCloud & KubernetesNetworkingSecurity toolingScripting

Benefits

  • Significant stock option packages
  • 100% employer-paid Medical, Dental, and Vision insurance (premium PPO and HMO options)
  • Life insurance
  • Traditional and Roth 401(k)
  • Paid vacation, sick leave, and company holidays
  • Generous Paid Parental Leave and extended transition back to work for the birthing parent
  • Free daily catered lunch and dinner, and fully stocked kitchenette
  • Casual dress, flexible work hours, and regular catered team building events
Last updated Oct 22, 2026. Interested? Apply on the company site.
Freeform logo

About Freeform

Engineered for simplicity, speed and scale.

Creative manufacturing company specializing in AI-native manufacturing systems with origins linked to SpaceX engineers.

ManufacturingAIMetal 3D PrintingAutomationIndustrial
Company profileWebsite

More open roles at Freeform