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20 it security engineer jobs at 17 companies in Vacaville, CA

2w
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Lead Security & IT Engineer
San Francisco or Los Altos
OnsiteFull Time
Anodize: Developing next-generation personal computing hardware and consumer electronics.
6+ YOE6+ years in infrastructure security/DevSecOps or systems engineering, strong IaC and scripting, enterprise identity/Zero Trust, cloud and network security, multi-OS MDM/EDR experience.
Infrastructure as Code (IaC), MDM, EDR, VPC, macOS, Linux, Windows
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IT Security Engineer (SF Bay Area)
San Francisco, California, United States
$165k-$230k/yr HybridFull Time
Higgsfield
Higgsfield: AI platform for cinematic social media video production.
Experience running MDM and EDR at fleet scale, production IdP (SSO/SAML/SCIM), MFA/conditional access, scripting (Python/PowerShell/Bash), and startup security experience preferred.
Microsoft Entra SSO, SSO, SAML, SCIM, MDM, EDR, XDR, IdP, Python, PowerShell, Bash, Slack
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Security Engineer, Corp IT
Austin or New York City or San Francisco or Seattle or United States
$218k-$252k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Hands-on experience securing corporate IdP, MDM, email, endpoints and SaaS; built detections and incident response; automating security controls in code; familiarity with identity-first security.
IdP, MDM, SSO, Okta, SIEM, SOAR, macOS, Windows
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Security Engineer (Corporate IT)
Berkeley or London or United States
$346k-$930k/yr OnsiteFull Time
Resolution
Resolution: Conducts research on aligning artificial superintelligence with human intent.
Build and own corporate IT security for a distributed research org; hands-on experience with endpoint management, IAM/Zero-Trust, email security, compliance (SOC 2/ISO 27001), and translating security requirements for researchers. Bachelor's degree or equivalent required.
MDM/EDR, CI/CD, Zero-Trust, multi-cloud, SOC 2, ISO 27001
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Head of IT & Security
Seattle or San Francisco
$175k-$220k/yr HybridFull Time
NexHealth
NexHealth: Connects patient experience software with electronic health records.
8+ YOE3+ Mgmt8+ years security experience; 3+ years leadership; builds security programs; handles audits; software engineering background.
SIEM, MDR, IDS/IPS, WAF, DLP, Vulnerability scanners
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IT Systems Engineer
San Francisco, California, United States
$190k-$240k/yr OnsiteFull Time
Kikoff
Kikoff: A fintech focused on empowering financial security and scalable consumer financial products.
4+ YOE4+ years in systems engineering or related IT/security role; strong macOS fluency; hands-on MDM (Rippling, Jamf, Kandji); Okta administration; scripting (bash/Python); SaaS stack management; familiarity with AI tools.
Okta, Google Workspace, Slack, Rippling, Jamf, Kandji, MCP servers, Python, bash, Claude, Cursor, Codex
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Corporate IT Engineer
San Francisco, California, United States
$140k-$186k/yr OnsiteFull Time
Alembic
Alembic: AI-powered marketing attribution and revenue forecasting platform.
Experience owning corporate IT lifecycle, identity and device management (SSO, MDM, directory), internal support, and scripting/automation (Python, Bash). Security-minded with systems administration experience in fast-growing companies.
Okta, Google Workspace, Jamf, Intune, SSO, MDM, Python, Bash, NVIDIA DGX SuperPOD
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Senior IT Engineer
San Francisco, California, United States
$137k-$169k/yr HybridFull Time
Drata
Drata: Automated security and compliance platform for businesses.
Manage identity, device, and network security infra; IAM governance; SaaS onboarding; collaborate with Security; MacOS expert; cloud experience; IaC and automation; AI tooling adoption.
MacOS, Okta, Ping, JAMF, Kandji, Fleet, AWS, GCP, Terraform, REST, SOAP, OAuth, GitOps, DNS, Firewalls, SaaS APIs, SAML, SSO
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Senior Information Technology Engineer, IT Security (IT/OT Firewall Administration)
Oakland, California, United States
$157k-$191k/yr HybridFull Time
East Bay Municipal Utility District
East Bay Municipal Utility District: Provides regional water supply and wastewater treatment services.
2+ YOEBachelor's degree or equivalent and 2 years IT engineering experience (one at/above IT Engineer II); 5+ years firewall administration experience preferred; skills in enterprise firewalls, routing, VPN, log analysis, incident response and ICS/OT security.
Palo Alto Networks, Cisco, FortiNet, Checkpoint, AWS, Azure, GCP, Wireshark
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Partner 18, IT Engineer, San Francisco/Menlo Park
San Francisco or Menlo Park
$189k-$221k/yr HybridFull Time
Andreessen Horowitz
Andreessen Horowitz: Provides venture capital and support to technology startups.
6+ YOE6+ years in systems, networking, security, or IT infrastructure; strong macOS, Windows, iOS skills (Android preferred); experience with endpoint management (Jamf/Kandji/Intune), Okta, Google Workspace, Slack; cloud (AWS/GCP/Azure) and networking knowledge preferred; strong communication.
macOS, Windows, iOS, Android, Okta, Google Workspace, Slack, Jamf, Kandji, Intune, Zoom, Zoom Rooms, AWS, GCP, Azure
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IT Lead
New York City or San Francisco
$180k-$310k/yr HybridFull Time
OpenAI Deployment Company
OpenAI Deployment Company: Delivers enterprise AI transformation and production-grade deployment services.
8+ YOE8+ years in IT/systems engineering; hands-on with identity, endpoint, SaaS, automation, security controls; scripting and vendor management experience; hiring and team leadership experience.
Google Workspace, Microsoft 365, Slack, SCIM, SSO, MFA
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6d
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IT Systems Engineer
San Francisco or New York City or London
$116k-$174k/yr OnsiteFull Time
Vercel
Vercel: Frontend cloud platform for building and hosting web applications.
Experienced in scripting, APIs, automation and integrations; able to consolidate SaaS tools, improve workflows, and collaborate cross-functionally with Security, Compliance, and People Operations.
Okta, Google Workspace, Slack, MDM, ITSM, Bash, Python, Workato, Zapier, Next.js, AI SDK
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IT Infrastructure Engineer
Petaluma or Denver
$120k-$145k/yr HybridFull Time
Spheros Environmental
Spheros Environmental: Environmental consulting firm providing integrated science-based sustainability solutions.
8+ YOE8+ years in IT support/systems administration in Microsoft 365 environments; expertise with endpoint security, networking, Azure/on‑prem infrastructure, documentation, and incident response.
Entra, Intune, Veeam, VMware vCenter, Windows Server, Azure Files, Cloudflare One, Unifi, Cisco, SentinelOne, KnowBe4 Defend, Deep Seas, Microsoft 365, Microsoft Defender for Endpoint, Cloudflare WARP, AWS EC2, Jira
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Endpoint Engineer, IT
San Francisco or New York City
$190k-$300k/yr HybridFull Time
Thinking Machines
Thinking Machines: Building AI systems to extend human will and judgment.
8+ YOE8+ years building and operating macOS endpoint and MDM systems; deep macOS internals knowledge; experience with Git-based endpoint workflows, zero‑touch provisioning, patching, and security posture systems; strong communication and problem solving.
Swift, Go, Python, Terraform, Git, osquery, Fleet, Iru, Jamf, Apple Business Manager, Automated Device Enrollment, Santa, Rudolph, AWS Lambda, Amazon API Gateway, Amazon DynamoDB, CI/CD
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IT / DevSecOps Engineer Contractor
Alameda, California, United States
HybridContract
Rain
Rain: Autonomous aircraft software for early wildfire containment.
Part-time contract DevSecOps role for a student or recent graduate; 16-20 hrs/week; Linux, networking, Git; automation, security; remote with onsite in Alameda (hybrid).
Linux, Git, VPNs, TCP/IP, DNS, virtualization, containerization, infrastructure-as-code, configuration management
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Director IT Engineering
Alameda, California, United States
$200k-$300k/yr OnsiteFull Time
Penumbra
PenumbraNYSE: PEN: Designs and manufactures medical devices for vascular conditions.
15+ YOE8+ Mgmt15+ years IT infrastructure experience, bachelor’s in IT (or equivalent), supervisory experience, cloud and datacenter expertise, familiarity with QMS/security, and strong communication and leadership skills.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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Cleared IT System Administrator / Computer Infrastructure Engineer - Special Programs Operations, Onsite
Livermore, California, United States
$89k-$172k/yr OnsiteFull Time
Sandia National Laboratories
Sandia National Laboratories: Conducts science and engineering research for national security.
2+ YOEActive DOE Q-level clearance, 2+ years related experience or equivalent, experience with CentOS/Oracle Linux/Windows, ability to work 24/7/365 and be on-call, willingness to obtain CompTIA Security+.
CentOS 8, Oracle Linux 8+, Windows Server 2019, Windows 10, VMWare, Ansible, Splunk, Solarwinds
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6d
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Cleared IT System Administrator / Computer Infrastructure Engineer - Special Programs Operations, Onsite
Livermore, California, United States
$89k-$172k/yr OnsiteFull Time
Sandia National Laboratories
Sandia National Laboratories: Federal research and development laboratory for national security.
2+ YOEActive DOE Q clearance (ability to obtain DOE SCI), CompTIA Security+ (or equivalent), 2+ years relevant experience or equivalent education, experience with CentOS/Oracle Linux/Windows Server, VMWare, scripting, Ansible, and 24/7 operational support.
CentOS 8, Oracle Linux 8+, Windows Server 2019, Windows 10, Linux, Windows, VMWare, Ansible, Splunk, Solarwinds
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