8 proofpoint jobs at 6 companies in Denver, CO

1mo
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Sr Enterprise Msg Spec II
Austin or Englewood
OnsiteFull Time
Jeppesen ForeFlight
Jeppesen ForeFlight: Provides integrated software and data solutions for aviation flight planning.
3+ YOE3+ years administering Exchange/Exchange Online, hands-on Exchange-to-M365 migration experience, Proofpoint administration, Google Workspace admin, SPF/DKIM/DMARC and email security, Microsoft 365 admin tools and PowerShell, strong written/verbal skills.
Microsoft Exchange, Exchange Online, Microsoft 365, Exchange Management Shell, Exchange Admin Center, Microsoft 365 Admin Center, Microsoft Purview, Proofpoint, Google Workspace, Google Workspace Admin, Google Workspace Admin SDK, PowerShell, Microsoft Graph, Okta, Azure AD, Entra ID, Microsoft Defender for Office 365, SPF, DKIM, DMARC, SMTP, DNS, TLS
1w
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Senior Security Automation & SOAR Engineer
New York or Boulder or Princeton
$140k-$155k/yr OnsiteFull Time
S&P Global
S&P GlobalNYSE: SPGI: Provides financial data, analytics, and credit ratings worldwide.
5+ YOE5+ years designing and implementing SOAR automation, strong incident response experience, Python and YARA proficiency, REST API and integrations, SIEM/SOAR/EDR platform expertise, AWS and IaC experience, data analysis with Pandas/SQL/Elasticsearch.
Python, YARA, REST API, Splunk, Elastic, Sentinel, Phantom, XSOAR, Swimlane, CrowdStrike, SentinelOne, Microsoft Defender, AWS, Terraform, CloudFormation, Pulumi, Pandas, SQL, Elasticsearch, Google SecOps platform, Agentic AI, Large Language Models, Okta, Microsoft Entra ID, SailPoint, Proofpoint, Mimecast, Git, GitLab, Bitbucket, Docker, Podman, containerd, Jenkins, GitLab CI, Azure DevOps, ThreatConnect, Anomali, MISP
3w
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Engineer - Cybersecurity
Denver, Colorado, United States
$100k-$133k/yr OnsiteFull Time
Frontier Airlines
Frontier AirlinesNasdaq: ULCC: Provides low-fare passenger air transportation services across the Americas.
6+ YOEBachelor's in CS/technology or equivalent, 6+ years cybersecurity engineering experience, 4+ years with EDR, SEGs, vulnerability management and SIEM, cloud (Azure/AWS) security, industry cert (CISSP, Security+, etc.) required or to be attained within 3 months.
DLP, SIEM, SOAR, EDR, SentinelOne, CrowdStrike, Cylance, Mimecast, Proofpoint, Microsoft Office365 Exchange, Nessus, Qualys, Rapid7, Splunk, LogRhythm, Wireshark, NMAP, Azure, AWS, Windows
1w
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IT Operations Engineer I
Englewood, Colorado, United States
$82k-$100k/yr HybridFull Time
Jeppesen ForeFlight
Jeppesen ForeFlight: Provides integrated software and data solutions for aviation flight planning.
2+ YOE2+ years HelpDesk/IT support experience; experience with Microsoft 365, Intune or Jamf, ticketing systems, strong troubleshooting and communication skills.
Microsoft 365, Exchange Online, OneDrive, SharePoint, Slack, Microsoft Intune, Jamf Pro, Jira Service Management (JSM), Google Workspace, ProofPoint, Zoom, Zoom Rooms, Confluence, Jira Software, PowerShell, Python, Claude, Copilot
1w
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IT Engineer - Cloud & Identity
Denver or Naperville
$115k-$125k/yr HybridFull Time
PTMA Financial Solutions
PTMA Financial Solutions: Provides treasury and investment services to public sector entities.
3+ YOE3+ years in cloud/identity or systems engineering; hands-on IAM experience (SSO, MFA, provisioning, access reviews); Microsoft 365 tenant admin; PowerShell or Python scripting; ability to travel ~15-20%; US work authorization required.
Okta, Microsoft Entra ID, Microsoft 365, Proofpoint, PowerShell, Python, SPF, DKIM, DMARC
1mo
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Support Analyst
Downers Grove or Chicago or Springfield or Phoenix or Lansing or Grand Rapids or Milwaukee or Denver or United States
$70k-$100k/yr RemoteFull Time
Sentinel Technologies
Sentinel Technologies: Provides managed IT services and comprehensive technology solutions.
Experience supporting multiple security technologies, troubleshooting and ticket management, strong written/verbal communication, CJIS-compliant background, legal US work authorization required.
Cisco Security Products, CSE, Umbrella, Secure Network Analytics, DUO, Cylance, CrowdStrike, Defender, SentinelOne, Tenable IO, Tenable SC, Tenable Lumin, Horizon 3 Node Zero, Proofpoint, Mimecast, Cisco Secure Email, Darktrace, VMware, Hyper-V, Linux, DNS, Microsoft SC-500
1mo
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Service Delivery Engineer I
Greenwood Village or Denver or Colorado Springs or United States
$20-$25/hr HybridFull Time
K3 Technology
K3 Technology: Managed IT services, cybersecurity, and AI solutions for businesses.
Provide technical support and troubleshooting for clients (LAN/WAN, hardware, software, Office 365), maintain documentation, perform onsite visits across Denver/COS metro, and deliver high-quality customer service.
Microsoft Windows, Microsoft Windows Server, macOS, Addigy, NinjaRMM, ConnectWise Control, Meraki, SonicWall, Microsoft Azure, Microsoft 365, Microsoft Intune, Microsoft Autopilot, KnowBe4, Proofpoint Essentials, Mimecast, SentinelOne EDR, Monday, Huntress, HaloPSA, Microsoft Office, Ubiquiti, VMware, Veeam, PowerShell, Synology
1w
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IT Engineer - Cloud & Identity
Denver or Naperville
$115k-$125k/yr HybridFull Time
PTMA Financial Solutions
PTMA Financial Solutions: Provides treasury and investment services to public sector entities.
3+ YOE3+ years cloud/identity/systems engineering experience, hands-on IAM (Okta or Microsoft Entra ID), Microsoft 365 administration, PowerShell or Python scripting, ability to manage SSO/MFA/provisioning, US work authorization required.
Okta, Microsoft Entra ID, Microsoft 365, Proofpoint, PowerShell, Python, SPF, DKIM, DMARC