61 platform security engineer jobs at 41 companies in Frederick, CO
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
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.
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.
Folsom or Denver or Englewood or Minneapolis or St. Paul or Pennington or Woodcliff Lake or Olympia
OnsiteMultiple Commitments Available
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.
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: 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.
Fort Carson or Colorado Springs or Charleston or Denver or San Diego
$110k-$180k/yrOnsiteFull Time
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.
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.
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
Senior. Principal Platform DevSecOps Engineer (Onsite)
Aurora, Colorado, United States
$132k-$252k/yrOnsiteFull Time
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.
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.
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.
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.
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.
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.
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
Sr Systems Security Engineer / Sr. Database & Storage Administrator
Lone Tree or Englewood
$143k-$197k/yrHybridFull Time
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