140 network security engineer jobs at 94 companies in Fairfield, CA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
3w
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Network Security Engineer
San Francisco or United States
HybridFull Time
Kargo
Kargo: Automates warehouse loading docks using computer vision sensor towers.
3+ YOE3+ years network security experience; strong networking knowledge (TCP/IP, DNS, DHCP, VPN, routing, switching); hands-on with firewalls, endpoint protection, vulnerability management; experience securing AWS or Google Cloud Platform; Bachelor’s in related field; security certifications preferred.
TCP/IP, DNS, DHCP, VPN, routing, switching, firewalls, endpoint protection, vulnerability management tools, AWS, Google Cloud Platform, WireGuards, Tailscale, SOC 2, ISO 27001, NIST
3mo
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Network Security Engineer
San Francisco or Seattle
$180k-$220k/yr HybridFull Time
Lightning AI
Lightning AI: Unified platform to build, train, and deploy AI models.
Design, implement, and maintain secure network systems; perform threat assessment, monitoring, and compliance.
Firewalls, VPNs, IDS/IPS, SIEM, Nessus, Qualys, Endpoint security, Palo Alto, Cisco ASA, Fortinet, Splunk, QRadar
3d
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Network Security Engineer
Foster City, California, United States
$181k-$218k/yr HybridFull Time
Zoox
ZooxNASDAQ: AMZN: Developing autonomous robotaxis for urban ride-hailing services.
6+ YOE6+ years securing enterprise, cloud, and OT environments; hands-on with next-gen firewalls, VPN/ZTNA, cloud networking, IaC (Terraform), Python, SIEM, and compliance (NIST/ISO).
AWS, GCP, CloudWAN, Palo Alto Networks, Fortinet, AWS NFW, WAFs, IDS/IPS, SIEM, NAC, 802.1X, PKI, VPN, ZTNA, Zscaler, Netskope, Prisma Access, Terraform, Python, CI/CD, REST APIs, BGP, OSPF, TLS, NAC
17h
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Network Security Engineer
Austin or New York City or San Francisco or Seattle
$242k-$284k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Experience securing production networks at scale, packet analysis, IT/OT segmentation, deploying NDR/flow detection, infrastructure-as-code for firewall rules, and familiarity with OT/ICS, BGP, Zeek or Suricata.
Zeek, Suricata, BGP, NDR
2mo
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Senior Staff Security Engineer - Network Security
Denver or San Francisco or New York City or San Jose
$210k-$270k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
10+ YOE10+ years in security engineering; Cloudflare WAF/DDoS/Zero Trust; Terraform/Crossplane; AWS networking; incident response; AI-native workflows; security certifications.
Cloudflare, Terraform, Crossplane, AWS, CloudFront, WAF, DDoS, Zero Trust, Panther, Wiz, CrowdStrike, Claude Code, MCP-driven tooling, LLM automations
1mo
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NETWORK ENGINEER
Brisbane, California, United States
OnsiteFull Time
InfoImage
InfoImage: Provides statement processing, printing, and digital delivery services.
5+ YOE5+ years as Network Engineer; Palo Alto and Fortinet firewalls; Dell and Cisco switches; VPNs; network security.
Palo Alto Firewall, Fortinet Firewall, Dell Switches, Cisco Switches, VPN, VLAN, STP, QoS
2mo
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Staff Network Security Engineer (Information Security) - US Citizen
Boston or San Francisco
$128k-$207k/yr OnsiteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
5+ YOE5–8 years in network/infrastructure security; 2+ years managing enterprise firewalls; 2+ years securing cloud environments; FedRAMP/NIST 800-53 familiarity; Python/Go scripting; REST APIs; IaC (Terraform); strong IP networking.
Python, Go, Terraform, REST APIs, SOAR, Infrastructure-as-Code, AWS, GCP, Azure
1mo
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Network Engineer
McLean or Tampa or New York City or San Francisco or Los Angeles or Irvine or Washington
$76k-$141k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
5+ YOEBachelor's or equivalent experience, 5+ years network engineering, experience with AWS networking, Cisco and Palo Alto platforms, VMware, container networking, automation (Terraform, Ansible), scripting (PowerShell, Linux shell), monitoring (Nagios, Splunk), and ability to obtain U.S. national security clearance; U.S. citizenship required.
AWS, Transit Gateway, VPCs, Route53, Terraform, Ansible, GitHub, Nexus NX-OS, Catalyst IOS, Firepower FTD, FMC, PAN-OS, VMware vSphere, LACP, IPsec, IKEv2, ZTNA, SDP, Nagios, Splunk, Linux, Apache, Tomcat, PowerShell, Linux shell, SOC2, STIG, NIST
1w
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Network Engineer
Woodland or Burlington
$110k-$125k/yr OnsiteFull Time
Sakata Seed America
Sakata Seed AmericaTokyo Stock Exchange: 1377: Breeding and distributing high-quality vegetable and flower seeds.
5+ YOEManage and maintain enterprise network and infrastructure, ensure security and availability, support projects, document systems, and troubleshoot issues.
Microsoft Windows Server, Microsoft Terminal Server, Windows 10/11, Microsoft Exchange, Microsoft Office 365, Microsoft Active Directory, Microsoft Entra, Microsoft Group Policies, VMware, Microsoft Hyper V, DHCP, DNS, TCP/IP, VPNs, SIEM, MDM
3w
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Security Engineer, Infrastructure Security
San Francisco, California, United States
$200k-$325k/yr OnsiteFull Time
Serval
Serval: AI platform for automating IT and enterprise service workflows.
10+ YOE10+ years in cybersecurity with expertise in endpoint security, device trust, macOS fleet management, SaaS security posture, workforce identity (SSO/MFA/OAuth), 802.1x network access, leadership, and automation/scripting.
MDM, macOS, 802.1x, OAuth, SSO, MFA, ACLs
1mo
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Senior Network & Site Reliability Engineer
San Francisco, California, United States
$210k-$240k/yr OnsiteFull Time
Alembic
Alembic: AI-powered marketing attribution and revenue forecasting platform.
8+ YOE8+ years in network or infrastructure engineering (5+ years datacenter ops); strong network security and architecture skills; hands-on with BGP, QoS, MPLS, IPsec, EVPN/VXLAN, ECMP; IaC (Ansible, Terraform, Nornir); NetBox/Infoblox; Kubernetes networking; Linux; monitoring stacks; Python/Bash.
NVIDIA DGX SuperPOD, Grace Blackwell, BGP, VPNs, WAN, QoS, MPLS, IPsec, EVPN, VXLAN, ECMP, Ansible, Terraform, Nornir, NetBox, Infoblox, Kubernetes, Prometheus, Grafana, Datadog, ELK, OpenTelemetry, Python, Bash, Cumulus Linux, InfiniBand, Spectrum-X, BlueField, Spark, Airflow, Kafka, NFS, LustreFS, iSCSI, Linux
2mo
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Network Engineer Tier 3
El Segundo or Colorado Springs or Springfield or Offutt AFB or Denver or Australia or Las Cruces or Sacramento or Cape Canaveral or Pearl Harbor or John C. Stennis Space Center or Chantilly or Annapolis Junction or Kirtland AFB or Vandenberg Space Force Base or Wright Patterson AFB or Piti or San Antonio or United Kingdom
$105k-$231k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOETS/SCI with polygraph required, 10+ years' network engineering experience, Bachelor's degree or equivalent, advanced knowledge of TCP/IP/OSPF/BGP/MPLS, experience with Cisco/Juniper, network monitoring, security principles, and leadership skills.
TCP/IP, OSPF, BGP, MPLS, Cisco, Juniper, ITIL
1w
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Information Security Engineer 4
Fremont, California, United States
$92k-$211k/yr HybridFull Time
Lam Research
Lam ResearchNASDAQ: LRCX: Designs and manufactures wafer fabrication equipment for the semiconductor industry.
Foundational information security engineering experience with hands-on exposure to endpoint, identity, network or cloud security; familiarity integrating SIEM/SOAR, endpoint management and logging; strong troubleshooting and communication skills.
SIEM, SOAR, endpoint management, logging
21h
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Security Engineer
Austin or South San Francisco
$99k-$185k/yr OnsiteFull Time
Neuralink
Neuralink: Developing implantable brain-computer interfaces to restore human capabilities.
Hands-on security engineering across SecOps and product security: detections, incident response, threat modeling, secure code review, and system hardening; strong OS, networking, and cloud fundamentals.
Linux, macOS, Windows, SIEM, EDR, SOAR, AWS, Kubernetes
4w
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Senior Network Engineer
San Francisco, California, United States
$130k-$160k/yr OnsiteFull Time
EOS IT Solutions
EOS IT Solutions: Provides global IT collaboration, managed services, and logistics solutions.
5+ YOE5+ years with corporate/campus networks; strong routing/switching and WLAN/WAN/security knowledge (OSPF, BGP, STP, IPSEC); Cisco and Juniper experience; Cisco AnyConnect; automation, monitoring, and documentation skills; CCNA preferred.
OSPF, BGP, STP, IPSEC, VSS, 802.11(b/g/n), Cisco AnyConnect, WAPs, WLCs, ASAs, ISE, SRX Firewalls, Junos Space, Python, Ansible, Bash, Git, AWS, VMware
1mo
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Security Engineer
Singapore or San Francisco
HybridFull Time
Menlo Research
Menlo Research: Building open-source humanoid robots and AI locomotion software.
5+ YOE5+ years as a software/security engineer; hands-on Linux and networking; IaC (Terraform/Helm/Ansible); Kubernetes; Python or Go; threat modeling and defining security for hybrid cloud and on-prem deployments.
Linux, Terraform, Helm, Ansible, Kubernetes, Python, Go
1mo
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Security Engineer
Daly City, California, United States
OnsiteFull Time
Interscripts
Interscripts: Provider of healthcare IT consulting and data management solutions.
5+ YOE5+ years in cybersecurity/security engineering; strong network, system, and cloud security; hands-on with SIEM, firewalls, IDS/IPS, VPNs; vulnerability management; security frameworks; Windows/Linux and cloud; IAM concepts; incident response; scripting a plus.
SIEM, Firewalls, IDS/IPS, VPNs, EndpointProtection, VulnerabilityManagement, SecurityAssessmentTools
1mo
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Senior Security Engineer, Enterprise Security
New York City or Austin or Berlin or Bucharest or Chicago or Dubai or Jakarta or London or Paris or San Francisco or São Paulo or Singapore or Seoul or Sydney or Tokyo
HybridFull Time
Braze
BrazeNASDAQ: BRZE: Platform for personalized customer engagement and cross-channel messaging.
5+ YOE5+ years security engineering experience, 3+ years in corporate security, hands-on technical experience with endpoint, network, and SaaS security, DLP, IAM, forensics, and incident response; strong communication and organizational skills.
Crowdstrike EDR, DLP, SIEM, IAM, SSO, BrazeAI
3mo
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Security Engineer
Fremont, California, United States
$105k-$120k/yr OnsiteFull Time
Quanta Manufacturing
Quanta ManufacturingTWSE: 2382: Electronics design and manufacturing services for global technology brands.
2+ YOE2+ years in information security; security operations exposure; OS/network knowledge; automation coding; Azure familiarity; strong communication.
SIEM, EDR, IDS/IPS, MDE, DLP, vulnerability management, patch management, forensics
3w
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Lead Infrastructure Engineer-Network Engineer
San Francisco or Seattle
$143k-$185k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years infrastructure engineering experience, formal training/certification, deep cloud and network knowledge, scripting and automation experience, familiarity with security/segmentation and AI-assisted engineering, strong problem-solving and mentoring skills.
Cisco, Juniper, Arista, Juniper Mist, Cisco/Viptela, Fortinet, BGP, OSPF, MPLS, EVPN/VXLAN, SD-WAN, Wi Fi 6E, Wi Fi 7, 5G, Palo Alto, Zscaler, IPsec, TLS, ZTNA, Python, Ansible, Terraform, Git, GitHub Actions, Jenkins, ThousandEyes, Splunk, Grafana, Wireshark