Top Senior Linux Jobs in St. Louis, MO

Develop and maintain Linux kernel components and live-patching infrastructure for Rocky Linux. Responsibilities include kernel design, C programming, debugging memory management and process scheduling issues, device-driver and hardware integration, performance optimization, code review, documentation, and mentoring junior developers. The role requires deep Linux kernel internals expertise, familiarity with x86 and ARM architectures, Git workflows, and at least five years of kernel development experience.

Designs, implements, administers, and optimizes enterprise Linux infrastructure across on-premises, virtualized, and Nutanix environments. Responsibilities include managing AHV, Prism Central, Prism Element, Red Hat tools, virtual machines, storage, networking, automation, monitoring, authentication, patching, and infrastructure-as-code practices. The role troubleshoots complex distributed infrastructure issues, improves reliability and security, documents systems, and supports platform modernization for an Intelligence Community customer.

Designs, administers, and optimizes enterprise Linux infrastructure across on-premises and Nutanix virtualized environments. Develops Ansible and scripting automation, manages Red Hat tools, supports authentication, monitoring, patching, and Infrastructure-as-Code practices. Troubleshoots complex systems, virtualization, storage, networking, and performance issues while improving reliability, security, scalability, and operational efficiency. Requires TS/SCI clearance with eligibility for CI polygraph.

Design, build, monitor, and maintain large-scale Linux infrastructure supporting distributed S3-compatible object storage across multi-cloud environments. Responsibilities include kernel and storage optimization, network and hardware troubleshooting, automation with Chef or Ansible, observability, forecasting capacity, technical leadership, project coordination, mentoring, documentation, and on-call support.

Designs and maintains secure Linux OS components for hardened container images and cloud-native workloads. Responsibilities include remediating CVEs, patching and rebuilding packages across Linux distributions, hardening container images, managing SBOMs and software provenance, and automating reproducible OS build and CI/CD pipelines. The role requires deep Linux systems, package management, dependency, container runtime, and supply chain security expertise, along with cross-functional collaboration to deliver stable, secure OS baselines.

Analyze Linux system performance, design and implement performance enhancements, productize new servers and hardware, extend performance metrics and visualizations, and build diagnostic tooling. The role requires advanced C programming, Linux kernel expertise, virtualization knowledge, hardware enablement and debugging experience, performance analysis skills, and understanding of computer architecture, concurrency, algorithms, and hardware interconnects.

Designs, implements, administers, and supports critical Linux infrastructure and enterprise systems. Diagnoses system issues, develops remediation plans, supports application infrastructure, and contributes to compliance activities. Builds automation, deployment pipelines, and infrastructure-as-code solutions using Linux, cloud, Kubernetes, GitOps, and configuration-management tools. Partners with engineering, security, and operations teams to improve reliability, scalability, security, and deployment efficiency while mentoring junior engineers.

Design, implement, and maintain enterprise Linux infrastructure and Nutanix HCI (AHV) environments. Administer Red Hat tooling (RHEL, Satellite, Capsule), develop automation with Ansible and scripting (Bash/Python), monitor and troubleshoot virtualization, storage, networking, and performance, and document architectures while participating in SAFe/Scrum teams.

Design, implement, and maintain enterprise Linux infrastructure and Nutanix HCI (AHV, Prism). Automate with Ansible and scripting (Bash/Python), manage RHEL tools (Satellite/ Capsule), integrate authentication (OAuth/SSO), and support observability (Grafana/Zabbix). Troubleshoot virtualization, storage, networking, and performance issues while documenting architecture and improving automation and reliability. Active TS/SCI and CI Polygraph eligibility required.

Designs and maintains system architectures across applications, infrastructure, and platforms. Provides technical leadership, translates requirements into scalable and secure solutions, optimizes reliability and performance, supports system integration, and collaborates with development, DevOps, security, and business stakeholders. Maintains technical documentation and participates in Agile delivery and continuous improvement. Preferred experience includes federal contracts, migrations, Ansible, Linux, Red Hat, cloud platforms, DevOps, CI/CD, and secure system design.

The DevOps Engineer will automate infrastructure, manage Linux systems, lead migrations to cloud platforms, and collaborate on CI/CD pipelines.

Design, implement, and maintain enterprise Linux infrastructure on-prem and virtualized. Administer Nutanix HCI (AHV, Prism), manage RHEL ecosystems (Satellite/ Capsule), automate with Ansible and scripting (Bash/Python), support authentication (OAuth/SSO), monitoring (Grafana/Zabbix), troubleshoot performance/virtualization issues, document systems, and contribute to platform modernization and automation.

Lead design and implementation of gameplay and engine systems on Linux platforms. Mentor engineers, define technical specs, manage Linux infrastructure, optimize performance and security, integrate art, maintain documentation, support live services and mobile (iOS/Android) ports, and coordinate cross-team standards and tooling.

Support the cloud engineering team with hands-on AWS work, develop and maintain Python/Django applications on Linux, provide development and support tasks, work onsite with the customer, and apply sysadmin and security framework knowledge as needed. Strong communication required.

Own and architect Linux kernel-space enforcement for an identity security platform using eBPF and BPF LSM hooks. Build kernel and userspace enforcement boundary, optimize syscall hot paths, extend enforcement to containers and Kubernetes, ensure portability across kernel versions, collaborate on shared policy/backend, mentor engineers, and drive production-grade, low-latency security enforcement.

Optimize Ubuntu integration across latest IoT and server-class hardware, lead customer engagements, and work with open source communities in a remote, collaborative environment.