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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Platform Engineer - Linux Infrastructure & Modernization - **Company:** Arcadia Inc. - **Location:** Aurora, CO, United States - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Bash Shell, Configuration Management, Computer Programming, Linux, Python (Programming Language), Linux Servers, Scrum Methodology, Ansible, Virtualization Technology, Workflow Management Systems, Scripting, Containerization, Kubernetes, Rancher, Devsecops, Docker, Vmware - **Published:** October 18, 2026 - **Apply:** https://www.careerbuilder.com/job-details/principal-platform-engineer-linux-infrastructure-modernization-aurora-co--18cfaf53-0f0b-46a7-816f-a94b587531a2 ## About the Role * Strong hands-on experience with Linux server and OS administration in enterprise or mission environments * Experience supporting VMware-based infrastructure * Programming or scripting proficiency using Python, Bash, Java, or comparable languages * Experience with platform provisioning, configuration, and full lifecycle management * Familiarity managing commercial off-the-shelf (COTS) software stacks * Working knowledge of Agile methodologies, including Scrum and SAFe Preferred / Modernization Experience * Experience with configuration management and automation tools such as Ansible or Chef * Exposure to container orchestration and runtime platforms, including Kubernetes, Docker, and Rancher * Familiarity with AWS or cloud-adjacent environments * Experience with system hardening and security-focused platform engineering Security & Certifications * Active TS/SCI clearance with CI Poly, required on day one * Security+ certification, or ability to obtain within 90 days of hire ## Description DescriptionThis role leads the design, operation, and modernization of secure Linux-based platforms supporting on-premise mission systems. The position balances deep infrastructure expertise with automation, containerization, and modernization initiatives while sustaining critical legacy environments.ResponsibilitiesEngineer, maintain, and modernize Linux-based infrastructure platforms supporting on-prem mission systemsAdminister and optimize Linux server and operating system environments across development, test, and productionSupport and manage virtualized infrastructure using VMware technologiesDesign and execute platform provisioning, configuration, and lifecycle management processesMaintain and integrate COTS software stacks within secure enterprise environmentsDevelop and maintain automation and scripting solutions using tools such as Python, Bash, or similar languagesImplement and manage configuration management and orchestration tools (e.g., Ansible, Chef)Support containerized platforms using Docker, Kubernetes, and Rancher where applicableContribute to platform hardening, security compliance, and DevSecOps-aligned practicesParticipate in Agile delivery frameworks including Scrum and SAFeRequirementsStrong hands-on experience with Linux server and OS administration in enterprise or mission environmentsExperience supporting VMware-based infrastructureProgramming or scripting proficiency using Python, Bash, Java, or comparable languagesExperience with platform provisioning, configuration, and full lifecycle managementFamiliarity managing commercial off-the-shelf (COTS) software stacksWorking knowledge of Agile methodologies, including Scrum and SAFePreferred / Modernization ExperienceExperience with configuration management and automation tools such as Ansible or ChefExposure to container orchestration and runtime platforms, including Kubernetes, Docker, and RancherFamiliarity with AWS or cloud-adjacent environmentsExperience with system hardening and security-focused platform engineeringSecurity & CertificationsActive TS/SCI clearance with CI Poly, required on day oneSecurity+ certification, or ability to obtain within 90 days of hire DescriptionThis role leads the design, operation, and modernization of secure Linux-based platforms supporting on-premise mission systems. The position balances deep infrastructure expertise with automation, containerization, and modernization initiatives while sustaining critical legacy environments.ResponsibilitiesEngineer, maintain, and modernize Linux-based infrastructure platforms supporting on-prem mission systemsAdminister and optimize Linux server and operating system environments across development, test, and productionSupport and manage virtualized infrastructure using VMware technologiesDesign and execute platform provisioning, configuration, and lifecycle management processesMaintain and integrate COTS software stacks within secure enterprise environmentsDevelop and maintain automation and scripting solutions using tools such as Python, Bash, or similar languagesImplement and manage configuration management and orchestration tools (e.g., Ansible, Chef)Support containerized platforms using Docker, Kubernetes, and Rancher where applicableContribute to platform hardening, security compliance, and DevSecOps-aligned practicesParticipate in Agile delivery frameworks including Scrum and SAFeRequirementsStrong hands-on experience with Linux server and OS administration in enterprise or mission environmentsExperience supporting VMware-based infrastructureProgramming or scripting proficiency using Python, Bash, Java, or comparable languagesExperience with platform provisioning, configuration, and full lifecycle managementFamiliarity managing commercial off-the-shelf (COTS) software stacksWorking knowledge of Agile methodologies, including Scrum and SAFePreferred / Modernization ExperienceExperience with configuration management and automation tools such as Ansible or ChefExposure to container orchestration and runtime platforms, including Kubernetes, Docker, and RancherFamiliarity with AWS or cloud-adjacent environmentsExperience with system hardening and security-focused platform engineeringSecurity & CertificationsActive TS/SCI clearance with CI Poly, required on day oneSecurity+ certification, or ability to obtain within 90 days of hire DescriptionThis role leads the design, operation, and modernization of secure Linux-based platforms supporting on-premise mission systems. The position balances deep infrastructure expertise with automation, containerization, and modernization initiatives while sustaining critical legacy environments.ResponsibilitiesEngineer, maintain, and modernize Linux-based infrastructure platforms supporting on-prem mission systemsAdminister and optimize Linux server and operating system environments across development, test, and productionSupport and manage virtualized infrastructure using VMware technologiesDesign and execute platform provisioning, configuration, and lifecycle management processesMaintain and integrate COTS software stacks within secure enterprise environmentsDevelop and maintain automation and scripting solutions using tools such as Python, Bash, or similar languagesImplement and manage configuration management and orchestration tools (e.g., Ansible, Chef)Support containerized platforms using Docker, Kubernetes, and Rancher where applicableContribute to platform hardening, security compliance, and DevSecOps-aligned practicesParticipate in Agile delivery frameworks including Scrum and SAFeRequirementsStrong hands-on experience with Linux server and OS administration in enterprise or mission environmentsExperience supporting VMware-based infrastructureProgramming or scripting proficiency using Python, Bash, Java, or comparable languagesExperience with platform provisioning, configuration, and full lifecycle managementFamiliarity managing commercial off-the-shelf (COTS) software stacksWorking knowledge of Agile methodologies, including Scrum and SAFePreferred / Modernization ExperienceExperience with configuration management and automation tools such as Ansible or ChefExposure to container orchestration and runtime platforms, including Kubernetes, Docker, and RancherFamiliarity with AWS or cloud-adjacent environmentsExperience with system hardening and security-focused platform engineeringSecurity & CertificationsActive TS/SCI clearance with CI Poly, required on day oneSecurity+ certification, or ability to obtain within 90 days of hire