Top Senior Linux Jobs in Philadelphia, PA

Lead Linux engineering sustainment for U.S. Army systems. Responsibilities include administering and securing RHEL environments, managing Pacemaker high-availability clusters, operating Linux servers in AWS, automating system administration with scripting, applying patches and hardening systems, remediating vulnerabilities, supporting software updates, developing test strategies, performing technical analysis, and communicating solutions to teams and customers. The role requires an active Secret clearance and supports mission-critical DoD infrastructure.

Develop and maintain Akamai’s custom Linux kernel and distribution for a globally distributed cloud platform. Responsibilities include adding performance, reliability, and security features; porting modifications to newer kernels; debugging production and test issues; improving build and continuous-testing automation; collaborating with platform, application, test, and hardware teams; and contributing work upstream to the open-source Linux community.

Develop and operate Akamai’s Linux-based cloud infrastructure, including bare-metal and virtual machine platforms, kernels, operating systems, and KVM/QEMU virtualization. Build software, automation, observability, and infrastructure enhancements at scale; troubleshoot complex distributed-system issues; collaborate across engineering and operations; mentor team members; and participate in on-call service restoration.

Develop and maintain Akamai’s custom Linux kernel for its cloud platform. Responsibilities include adding performance, reliability, and security features; porting modifications across kernel versions; debugging production and test issues; improving build and continuous-testing automation; collaborating with platform, application, hardware, and test teams; and contributing changes upstream to the Linux community.

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, build, and maintain embedded Linux environments and kernels across hardware platforms. Tasks include kernel patching, cross-compilation, networking, system diagnostics, automation, and collaboration with hardware, software, and QA teams to integrate applications with embedded OS platforms.

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