61 platform security engineer jobs at 41 companies in Frederick, CO

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
1w
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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
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
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
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
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)
2mo
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Platform Engineer
Aurora, Colorado, United States
$130k-$150k/yr OnsiteFull Time
DPG Solutions
DPG Solutions: Automates IT infrastructure and DevSecOps for defense and government.
5+ YOEUS citizenship, active TS/SCI with CI Poly, Security+ or CISSP, BS/BA in STEM plus 5 years, Kubernetes/Docker experience, Linux (Red Hat), programming/scripting (Python/Java/Ruby/Bash/C/C#/Go).
Kubernetes, Docker, Python, Java, Ruby, Bash, C++, C#, Go, Red Hat Linux
3w
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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
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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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
2w
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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
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
6d
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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
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
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)
12h
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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
2mo
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Manager, IT Security Engineering
Denver, Colorado, United States
$85k-$135k/yr OnsiteFull Time
DaVita
DaVitaNYSE: DVA: Provides kidney dialysis and integrated chronic disease management services.
9+ YOELed security engineering teams; oversee security platforms; implement IT security controls
CyberArk, TenableOne, Kenna, Palo Alto XSOAR/XSIAM, Cortex EDR, Palo Alto firewall
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
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: Providing global edge-to-cloud infrastructure and IT solutions for businesses.
12+ YOEBachelor’s or Master’s in computer science or information systems; 12+ years embedded software experience; strong C/C++, Python, Go; Linux development; RESTful APIs; firmware security features (HWRot, IDEVID, Platform Certificates); SDLC mastery.
C, C++, Python, Go, Linux, RESTful API, Firmware Security Features
3w
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Sr DevSecOps Engineer
Lafayette, Colorado, United States
$125k-$187k/yr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
7+ YOEBachelor's degree and multi-year experience in embedded Linux, Yocto, CI/CD, secure software supply chain, vulnerability management, and embedded platform security; strong cybersecurity and risk-analysis skills.
AMD Zynq, Zynq UltraScale+, NVIDIA ORIN, SafeRTOS, FreeRTOS, Yocto, Docker, Snyk, SonarQube, Python, Bash, Go, Bitbucket, Jira, Bamboo, Confluence, GitHub, GitLab, CI/CD
1mo
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Sr Systems Security Engineer / Sr. Database & Storage Administrator
Lone Tree or Englewood
$143k-$197k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
8+ YOEBachelor's degree (or equivalent experience), 8+ years IT security/database/storage experience, active Top Secret with SCI eligibility, CISSP preferred, IAM/IAT Level III required, experience across relational, NoSQL, cloud DBs and enterprise storage platforms.
Microsoft SQL Server 2019, Microsoft SQL Server 2022, Always On Availability Groups, Patroni, pgBouncer, InnoDB, Oracle Database, Oracle RAC, Oracle ASM, Data Guard, RMAN, Apache Cassandra, MongoDB, Redis, Redis Sentinel, Redis Cluster, AWS RDS, AWS Aurora, Microsoft Azure SQL Database, Microsoft Azure Cosmos DB, Google Cloud Spanner, Query Store, pg_stat, OEM, CloudWatch, DataStax Metrics, NetApp ONTAP, SnapMirror, SnapVault, CIFS, NFS, HPE 3PAR, HPE Primera, HPE Nimble Storage, HPE Alletra, Fibre Channel, iSCSI, HBA, MPIO, vSphere, VMDK, VMFS, storage vMotion, NetApp StorageGRID, Ceph, AWS S3, Azure Blob, NetApp AIQUM/OCI, HPE InfoSight, CloudPhysics, SQL Server Management Studio, pgAdmin, Kubernetes, StatefulSets, CSI, DISA STIGs, NIST 800-53, CMMC, VAAI, VASA