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60 platform security engineer jobs at 38 companies in Greeley, CO

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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
Help us #BeatIndeed & #BeatLinkedIn
2w
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Senior Platform Engineer, Security
Denver, Colorado, United States
$180k-$235k/yr HybridFull Time
Simplesense
Simplesense: Software platform protecting critical infrastructure from cyber attacks.
5+ YOE5+ years platform/DevSecOps experience, strong IaC and AWS security skills, familiarity with NIST 800-53/800-82, US citizenship, DoD 8140 and ability to obtain Secret clearance, hybrid Denver presence.
CloudFormation, Terraform, OpenTofu, Ansible, SecurityHub, GuardDuty, Inspector, Nozomi
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1mo
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Platform Security Engineer 1
Folsom or Denver or Englewood or Minneapolis or St. Paul or Pennington or Woodcliff Lake or Olympia
OnsiteMultiple Commitments Available
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
1+ YOEBachelor's degree in IT/Cybersecurity or related field; 1 year infra/security engineering; VMware vSphere; CIS/NIST knowledge; documentation experience.
VMware NSX, vDefend, Azure, PowerShell, PowerCLI, Python
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1mo
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Platform Security Engineer 1
Omaha or Saint Louis Park or Denver or Englewood or Orlando or Kansas City or Albuquerque or Portland or Salem or Pittsburgh or Austin or Dallas or Fort Worth or San Antonio or Vienna or Olympia or Columbia or St. Paul or Harrisburg or Woodcliff Lake or Phoenix or Folsom
OnsiteFull Time
HDR
HDR: Global provider of engineering, architecture, environmental and construction services.
1+ YOEBachelor's in IT/Cyber/CS or equivalent experience, 1+ year infrastructure/systems/networking/security experience, hands-on VMware vSphere, foundational security and IAM knowledge, familiarity with NSX/vDefend, change management and documentation skills.
vDefend, VMware NSX, VMware vSphere, SDDC Manager, Identity Broker, Azure, PowerShell, PowerCLI, Python, CIS, NIST
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1mo
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Senior Platform Engineer (OpAI)
Fort Carson or Colorado Springs or Charleston or Denver or San Diego
$110k-$180k/yr OnsiteFull Time
The Marlin Alliance
The Marlin Alliance: Provides digital transformation and automation services to defense agencies.
U.S. citizen with active Top Secret clearance. Experience building and securing cloud infrastructure, container orchestration, IaC, Linux, scripting, and supporting AI/ML platforms; ability to lift 50 lbs.
AWS GovCloud, Kubernetes, OpenShift, Ansible, Terraform, CloudFormation, Python, Bash, Linux, GitHub Actions, GitLab CI, Jenkins, CloudWatch, Grafana, Elasticsearch, Airflow, Kafka, RabbitMQ, Apache, Kibana, Domino Data Labs, Tobias, Fiddler, VPCs, TCP/IP, TLS
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1mo
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Staff Platform Engineer, AI
Denver or Long Beach
$200k-$330k/yr HybridFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
8+ YOE8+ years engineering/DevOps/cloud experience, production systems in Python/TypeScript, LLM APIs/RAG/agent frameworks, cloud (AWS/Azure/GCP), CI/CD, security clearance eligibility (Top-Secret), strong communication and technical leadership.
Python, TypeScript, CrewAI, Pydantic AI, OpenTelemetry, AWS, Azure, GCP, AWS GovCloud, Azure Government, FedRAMP, NIST 800-53, CI/CD, LLM APIs, Retrieval-Augmented Generation (RAG)
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4w
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Senior. Principal Platform DevSecOps Engineer (Onsite)
Aurora, Colorado, United States
$132k-$252k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
10+ YOEU.S. citizenship and active transferable TS/SCI with Polygraph required day 1; BS/BA in STEM and 10+ years related experience; RedHat Linux, Terraform/Ansible/Chef, Python/Bash experience; DoD 8570 IAT Level II (e.g., Security+ CE) required.
RedHat Linux, Terraform, Ansible, Chef, Python, Bash, AWS, EC2, EKS, S3, CloudWatch, IAM, VPC, Kubernetes, Docker, Podman, Jira, Confluence, Jenkins, Artifactory, GitLab, Helm, Nessus
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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
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13h
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Platform Operations Engineer, DevOps | TS Cleared
Littleton or Denver or King of Prussia
$75k-$90k/yr OnsiteFull Time
Trace3
Trace3: Provides IT consulting and technology solutions for enterprise digital transformation.
2+ YOEActive Top Secret clearance preferred, 2+ years platform or infrastructure experience, OpenShift and Rundeck operational automation, Linux/Windows administration, Ansible/Puppet, security compliance, strong troubleshooting and communication.
OpenShift, Rundeck, Ansible, Puppet, Linux, Windows
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1w
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Lead Cloud Platform & Dev Ops Engineer
Denver or Colorado
$122k/yr HybridFull Time
State of Colorado
State of Colorado: Provides essential public services and administrative governance to residents.
3+ YOEMaster's+3 yrs or Bachelor's+5 yrs in CS/CE/EE/IT; 3+ years with Python/Java, CI/CD, IaC, cloud (AWS EKS/ECS/Lambda), monitoring (Prometheus,Grafana); experience with Kafka/RabbitMQ and security/compliance.
Python, Java, AWS, EKS, ECS, Lambda, CI/CD, infrastructure-as-code, Prometheus, Grafana, Kafka, RabbitMQ
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3w
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Senior Security Compliance Engineer
Boston or Denver
$120k-$180k/yr OnsiteFull Time
Klaviyo
KlaviyoNYSE: KVYO: Software platform for automated e-commerce marketing and customer data.
3+ YOE3+ years security compliance/GRC engineering experience with automation focus; experience with SOC 2, ISO 27001/27017, PCI or SOX ITGCs; proficiency with cloud (AWS, Kubernetes), scripting (Python, Go, SQL), REST APIs, and compliance automation platforms.
Drata, Vanta, Anecdotes, HyperProof, AWS, Kubernetes, Python, Go, SQL, REST APIs, CI/CD
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2mo
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Senior AI Platform Engineer
Englewood or Denver
$117k-$158k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
5+ YOEDatabricks AI enablement, Python/PySpark, Unity Catalog governance, cloud security, FinOps, and cross‑functional collaboration.
Databricks, Delta Lake, Unity Catalog, Python, PySpark, Terraform, GitLab, Genie, Mosaic AI
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1w
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Lead Cloud Platform & Dev Ops Engineer
Denver, Colorado, United States
$122k/yr RemoteFull Time
University of Colorado
University of Colorado: Public research university providing higher education and healthcare services.
3+ YOEMaster's+3yrs or Bachelor's+5yrs in CS/CE/EE/related IT. 3+ years with Python/Java, CI/CD, IaC, cloud platforms (AWS EKS/ECS/Lambda), monitoring (Prometheus,Grafana); experience with Kafka/RabbitMQ and security/compliance.
Python, Java, EKS, ECS, Lambda, Prometheus, Grafana, Kafka, RabbitMQ
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1d
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Engineering Manager - Security Platform
Atlanta or Austin or Denver or New York City or Toronto or Washington DC or Seattle
$170k-$237k/yr HybridFull Time
Cloudflare
CloudflareNYSE: NET: Provides security and performance services for internet properties.
Engineering manager with distributed systems, software development, and security implementation experience; strong communication and team leadership; experience with PKI, secrets management, or cryptography preferred.
HashiCorp Vault, OpenBao, Linux/UNIX, Go, Python, Salt, HSMs, TPM, AMD SEV, Intel SGX, Apple Secure Enclave
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3d
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IT Spec (ENTARCH) "Platform/site Reliability Engineer", GS-2210-14 FPL GS-14 (DH)
San Francisco or Denver or Washington or Atlanta or Chicago or Salt Lake City or Seattle
$128k-$197k/yr HybridFull Time
Federal Student Aid
Federal Student Aid: Administers federal student loans and financial aid programs.
1+ YOEDesign and implement scalable cloud platforms, IaC, CI/CD, containers, observability, SRE practices; lead platform engineering and security; must be U.S. citizen and pass background/fingerprint check.
Infrastructure as Code (IaC), CI/CD, containers
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3w
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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
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1mo
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Infrastructure Engineer Senior, Oracle Platform
Pittsburgh or Dallas or Cleveland or Birmingham or Denver
$91k-$169k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
5+ YOEBachelors degree and 5+ years industry experience. Deep hands-on Oracle platform engineering (RAC, Grid Infrastructure, Multitenant), automation, lifecycle management, performance tuning, backup/recovery, security controls (TDE, EUS, MFA) and audit/regulatory support.
Oracle, Oracle RAC, Grid Infrastructure, Oracle Multitenant (CDB/PDB), Oracle Recovery Appliances, Oracle Enterprise Manager (OEM), Oracle OPM, Transparent Data Encryption (TDE), Enterprise User Security (EUS), MFA, CIS, Machine Learning (ML)
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5d
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Senior Software Engineer — PingOne Platform Administration & Security
United States or Denver
$110k-$138k/yr RemoteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
5+ YOE5+ years software engineering experience with backend services; Java and NodeJS experience; TypeScript and REST API familiarity; experience with SaaS, CI/CD, distributed systems, and mentoring peers.
Java, NodeJS, TypeScript, REST APIs, CI/CD, MCP
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2mo
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Security Engineer, Vulnerability & Attack Surface Management
Denver or São Paulo or Colombia or Argentina or Brazil or Costa Rica or United States
RemoteContract
AspenView: Provides nearshore software engineering and digital transformation services.
4+ YOE4+ years cybersecurity experience focused on vulnerability or attack surface management, familiarity with VM/ASM platforms, AI-augmented tooling, ServiceNow/Jira, Python/PowerShell; Security+ or GEVA and vendor certs preferred.
Tenable Nessus, Qualys VMDR, Rapid7 InsightVM, Microsoft Defender Vulnerability Management, Cortex Xpanse, Microsoft Defender EASM, Axonius, ServiceNow, Jira, Python, PowerShell
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2mo
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Firmware Security Architect
Spring or Fort Collins or Chippewa Falls
$162k-$371k/yr OnsiteFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
12+ YOEBachelor's or master's in CS/IS; 12+ years embedded software; C, C++, Python, Go; Linux; RESTful API; firmware security features (HWRot, IDEVID, platform certificates); SDLC; strong communication.
C, C++, Python, Go, Linux, RESTful API, Firmware Security Features, HWRot, IDEVID, Platform Certificates
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19h
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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
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