47 siem engineer jobs at 37 companies in Frederick, CO

1w
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Senior Cybersecurity Engineer
Boulder or United States
$180k-$198k/yr HybridFull Time
Campminder
Campminder: Cloud-based management software for the summer camp industry.
5+ YOE5+ years in security engineering/DevSecOps, experience with IAM/SSO (Okta, Auth0, Azure conditional access), CI/CD security (SAST, DAST, SCA), Kubernetes hardening, PCI technical controls, and SIEM/EDR tooling.
Azure conditional access, Okta, Auth0, CI/CD, SAST, DAST, SCA, WAF, Mondoo, SecurityMetrics, EDR, DLP, SIEM/XDR, Kubernetes, KnowBe4, Security Journey
1mo
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Cyber Security Engineer Technical Lead
Littleton, Colorado, United States
$124k-$218k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
TS/SCI clearance and US citizenship required; DoD 8570 IAM/IAT II certifications; experience in satellite and ground operations, RMF/ATO processes, SOC operations, vulnerability scanning/EVSS, DoD cybersecurity standards, SIEM, RHEL/Windows, and incident response.
NetBrain, Zenoss, Hewlett Packard Network Automation (HPNA), eMASS, HBSS, ACAS, SCAP Compliance Checker (SCC), DISA STIGs, EVSS, RHEL, Windows Server, SIEM, LogRhythm, Splunk, Jira, Confluence
1w
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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
3w
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Principal Security Engineer
Englewood or Austin
HybridFull Time
Jeppesen ForeFlight
Jeppesen ForeFlight: Provides integrated software and data solutions for aviation flight planning.
10+ YOE10+ years in security engineering or architecture with 3+ years as a principal/staff-level IC; hands-on with cloud (AWS, Microsoft Azure), IAM, VPC, Okta/Entra ID/Azure AD, EDR/XDR, SIEM, SOAR; knowledge of NIST CSF, ISO 27001, SOC 2; strong communication and risk-to-engineering delivery.
Okta, Microsoft Entra ID, Microsoft Azure AD, AWS, Microsoft Azure, IAM, VPC, EDR, XDR, SIEM, SOAR, NIST CSF, ISO 27001, SOC 2, FAA, EASA, DoD, CMMC
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Senior Cybersecurity Engineer
Princeton or Boulder
$121k-$147k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
6+ YOEBachelor's in a related field, CySa+ (or similar), 6+ years cybersecurity engineering, 2+ years CrowdStrike EDR/NG-SIEM experience, NIST 800-171/CMMC, vulnerability scanning, Linux/Windows/AD/IAM, scripting (Python, PowerShell, Bash), DoD clearance eligible.
CrowdStrike EDR, CrowdStrike NG-SIEM, SIEM, Tenable, NinjaOne, AWS, Azure, Python, PowerShell, Bash, NIST 800-171, CMMC, Active Directory, IAM, DevSecOps
2mo
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Cyber Security Engineer
Colorado Springs or Aurora
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years in cybersecurity, system security engineering, or defensive cyber operations; RMF/NIST 800-53/DoD standards; vulnerability scanners, SIEM, or log platforms; secure/harden Windows/Linux; Secret clearance; Bachelor's degree.
RMF, NIST 800-53, DoD cybersecurity standards, vulnerability scanners, SIEM, endpoint protections, log platforms, Windows, Linux
5d
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IT Engineer - Network & Security
Naperville or Denver
$120k-$130k/yr HybridFull Time
PTMA Financial Solutions
PTMA Financial Solutions: Provides treasury and investment services to public sector entities.
3+ YOE3+ years in network/security or infrastructure engineering; SASE/firewall and cloud experience; EDR/SIEM/ITSM familiarity; ability to lift 30 lbs; occasional travel and rotating on-call duties.
SASE, Fortinet, Palo Alto, Netskope, Zscaler, EDR, SIEM, ITSM, Windows Server
4d
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Cyber Security Engineer
Plano or San Jose or Irvine or Broomfield
$123k-$197k/yr OnsiteFull Time
Broadcom
BroadcomNASDAQ: AVGO: Designs and sells semiconductors and infrastructure software to enterprises.
12+ YOEExpertise in incident response, threat hunting, SIEM integrations and automation; programming with Python and scripting; bachelor's in CS/IT and 12+ years relevant experience.
Python, Google Chronicle, Splunk, Phantom SOAR, CRIBL, Logstash, IBM QRadar, SIEM
3w
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Cybersecurity Engineer
Denver or United States
$80k-$120k/yr RemoteFull Time
Apollo Information Systems
Apollo Information Systems: Provides intelligence-led cybersecurity services and managed security programs.
Hands-on experience architecting, implementing, and managing security, network, and cloud technologies; experience with SIEM, EDR/MDR, firewalls/IPS/IDS; cloud platform security (Microsoft Azure, AWS, GCP, Microsoft 365); scripting/automation (PowerShell, Bash, Python).
Apollo Aegis, firewalls, IPS/IDS, SIEM, EDR/MDR, Microsoft 365, Microsoft Azure, AWS, GCP, PowerShell, Bash, Python, Fortinet, Sophos, Palo Alto, Cisco, Stellar Cyber, Splunk, LogRhythm, Elastic, Microsoft Azure Sentinel, Tenable, Sevco, Microsoft Entra ID, Google Workspace, SSO, MFA
2mo
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Cyber Security Engineer
Colorado Springs or Aurora
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years in cybersecurity or defensive cyber operations; RMF/NIST 800-53; DoD standards; vulnerability scanners/SIEM; Windows/Linux hardening; Secret clearance; Bachelor's degree.
RMF, NIST 800-53, DoD cybersecurity standards, eMASS, XACTA, STIG Viewer, SCAP tools, Python, PowerShell, Bash, SIEM, Log analysis tools, Windows, Linux
3w
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Senior Adversary Pursuit Engineer
Atlanta or Boston or Chicago or Denver or Los Angeles or New York City or San Francisco or Austin or United States
$140k-$175k/yr RemoteFull Time
Flock Safety
Flock Safety: Sells AI-powered cameras and software for public safety surveillance.
5+ YOE5+ years cybersecurity experience (≥3 years DFIR/threat hunting), DFIR on diverse environments including Android IoT, cloud (AWS/GCP/Azure), SIEM/EDR expertise, detection engineering (Splunk SPL, YARA, Sigma), automation (Torq, Tines), MITRE ATT&CK mapping, and mentoring skills.
AWS, GCP, Azure, Android, SIEM, EDR, Torq, Tines, LLMs, Splunk SPL, YARA, Sigma, MITRE ATT&CK
1w
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Cyber Security Engineer
Denver, Colorado, United States
$95k-$179k/yr HybridFull Time
BKV
BKVNYSE: BKV: Integrated energy focused on natural gas and decarbonization.
2+ YOEBachelor's in cybersecurity or related field,2+ years cybersecurity experience,knowledge of SIEM,IDS/IPS,OT/ICS security,ServiceNow,O365;leadership and incident response skills;relevant certifications preferred.
SIEM, ServiceNow, O365, Microsoft Office, AWS, Azure, Goggle Cloud, Azure Active Directory, IDS/IPS, ICS/SCADA
2w
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Security Engineer - Insider Threat
Atlanta or Boulder or Reston
$152k-$228k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOE8+ years in insider threat/counterintelligence/corporate investigations or related fields; bachelor’s degree; proficiency with SIEM/UEBA platforms; working knowledge of DLP, endpoint detection, and digital forensics; strong communication and judgment.
SIEM, UEBA, Splunk, QRadar, Sentinel, Exabeam, Proofpoint, DTEX, Purview
3w
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Senior Information Security Engineer
Denver or Austin
$165k-$185k/yr HybridFull Time
Western Union
Western UnionNYSE: WU: Facilitates global money transfers and cross-border digital payments.
7+ YOEBachelor's preferred, 7+ years in technology/information/application security; expert with SIEM/EDR, OWASP/SANS flaws, incident response, forensics, automation, cloud and web/mobile security; available for occasional on-call; US work authorization required.
SIEM, EDR, OWASP, SANS, Web Application Firewalls (WAF), SSL/TLS
6d
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Security Engineer
Kansas City or Atlanta or Clayton or New York or Los Angeles or Birmingham or Boston or Chattanooga or Charleston or Dallas or Denver or Edwardsville or Fort Lauderdale or Fort Worth or Houston or Jefferson City or Miami or Nashville or Park City or Philadelphia or Phoenix or Raleigh or Seattle or San Francisco or Salt Lake City or Wilmington or Washington
$120k-$150k/yr RemoteFull Time
Polsinelli
Polsinelli: Am Law 100 law firm providing comprehensive legal services.
2+ YOE2-4 years security engineering experience in on-premises environments, Bachelor's in CS/CE/IS or equivalent, experience with metrics/events/logging, detection engineering, scripting (Python, PowerShell), Microsoft Active Directory and Azure.
Splunk, Microsoft Active Directory, Azure, SIEM, Python, PowerShell, Microsoft Teams, Zoom, MITRE ATT&CK Framework, NIST Cyber Security Framework, CIS Controls
3w
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Customer Engineer III, Federal Security, Google Public Sector
Reston or Boulder or Washington D.C.
$152k-$222k/yr OnsiteFull Time
Google
GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.
10+ YOEUS citizen required; Bachelor's degree or equivalent; 10+ years in cloud security architecture; experience with encryption, identity, access control, SIEM/CNAPP; presentation skills; ability to obtain Top Secret clearance.
Security Information and Event Management (SIEM), Cloud Native Application Protection Platform (CNAPP), Google Cloud, Python, Bash
3mo
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Sales Engineer, Enterprise
Los Angeles or Denver or San Francisco
$195k-$300k/yr RemoteFull Time
Fortinet
FortinetNASDAQ: FTNT: Develops and sells cybersecurity software and network security appliances.
5+ YOE5–8 years pre-sales or systems engineering in enterprise cybersecurity, networking, or cloud; strong networking and security knowledge; ability to design and present secure architectures; executive-facing communication.
SIEM, SOAR, XDR, MFA, SSO, PAM
3mo
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Security Engineer III
New York City or Denver or Leeds or Dublin
$147k-$194k/yr RemoteFull Time
Fanatics
Fanatics: Global digital sports platform for merchandise, collectibles, and betting.
5+ YOE5+ years security engineering experience; strong incident response, threat hunting, cloud (AWS) security, SOAR automation, identity protocols (OAuth, SAML, OpenID Connect); scripting with Python/Bash; experience with Cloudflare, Datadog, Wiz, Tines preferred.
Security Orchestration, Automation and Response (SOAR), Cloudflare, Datadog, Wiz, Tines, SIEM, AWS, Terraform, Ansible, Python, Bash, OAuth, SAML, OpenID Connect
1mo
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Mission Security Engineer
Denver or Long Beach
$115k-$180k/yr OnsiteFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
3+ YOE3–5 years in technical IT/security engineering; TS/SCI with poly; DoD 8140 IAT II; RMF/NIST 800-53 knowledge; experience with STIGs, cloud, DevSecOps
RMF, NIST 800-53, DISA STIG, DevSecOps, Kubernetes, EKS, AKS, AWS, Azure, SIEM, EDR, SCA, IaC, CI/CD, Zero Trust
1w
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CyberSecurity AI Engineer
Lincoln or Centennial or Eau Claire or Sidney or Madison or United States
$115k-$155k/yr RemoteFull Time
Nelnet
NelnetNYSE: NNI: Provides student loan servicing and educational payment processing solutions.
3+ YOEBachelor's-equivalent in CS or related, 3+ years in cybersecurity/security engineering, hands-on ML/LLM experience, knowledge of adversarial ML and model risk, scripting in Python, and familiarity with AI governance and security frameworks.
Anthropic Claude, OpenAI, SageMaker, Azure ML, Vertex AI, SIEM, XDR, Python, MITRE ATLAS, OWASP LLM Top 10, PyTorch, TensorFlow, Hugging Face

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