1mo
Save
Mark Applied
Hide
Linux Administrator II
Westminster, Colorado, United States
$33-$39/hr OnsiteFull Time
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
Linux, TCP/IP, DNS, DHCP, VLANs, firewalls
1mo
Save
Mark Applied
Hide
Principal Linux Kernel Developer
Fort Collins or Colorado or Minnesota or United States
$160k-$303k/yr HybridFull Time
8+ YOEBachelors/Masters in CS or related; 8+ years systems/kernel development; expert C and deep Linux kernel internals; experience with kernel debugging tools and distributed storage; technical leadership and collaboration skills.
Linux kernel, C, crash, perf, ftrace, tracepoints, Lustre, Ceph, DAOS, RDMA, InfiniBand, CI/CD
1mo
Save
Mark Applied
Hide
Principal Linux Kernel Developer
Fort Collins or Colorado or Minnesota or United States
$152k-$349k/yr HybridFull Time
8+ YOE8+ years systems/kernel development experience, expert C, deep Linux kernel internals, kernel debugging (crash, perf, ftrace, tracepoints), distributed storage experience, technical leadership, strong communication.
C, Linux kernel, crash, perf, ftrace, tracepoints, Lustre, Ceph, DAOS, RDMA, InfiniBand, CI/CD
1mo
Save
Mark Applied
Hide
Principal Linux Kernel Developer
Fort Collins or Colorado or Minnesota or United States
$160k-$303k/yr HybridFull Time
8+ YOEBachelor's or Master's in CS/CE, 8+ years systems/kernel development, expert C, deep Linux kernel internals, kernel debugging (crash, perf, ftrace, tracepoints), distributed storage experience, technical leadership and collaboration skills.
Linux kernel, C, crash, perf, ftrace, tracepoints, Lustre, Ceph, DAOS, RDMA, InfiniBand, CI/CD
3d
Save
Mark Applied
Hide
Staff Linux Software Engineer (Multiple Locations)
San Diego or Boulder
$135k-$202k/yr OnsiteFull Time
2+ YOEExperience developing Linux system software and drivers in C/C++; strong understanding of Linux internals, multi-threading, API design, SoC architecture; proficiency with git and debugging tools.
Linux, C, C++, Java, Python, git, KVM, Docker, SR‑IOV, gtest, PCIe, UML
1w
Save
Mark Applied
Hide
Engineer Principal – Linux Systems Integration
Westminster, Colorado, United States
OnsiteFull Time
6+ YOEBS+6 years (or equivalent) required, Top Secret clearance, proven Linux systems engineering experience with RedHat/RHEL, Ansible/Puppet automation, virtualization, and support for secure RMF environments.
RedHat Linux, Ansible, Puppet, Python, RHEL IdM, Satellite Server, DELL
1mo
Save
Mark Applied
Hide
Advisory Linux Systems Software Engineer
Boulder, Colorado, United States
$93k-$100k/yr HybridFull Time
5+ YOE5+ years developing low-level Linux systems software; strong C/C++; Python/Bash scripting; deep Linux internals, system bring-up, debugging, and hardware/software integration; bachelor's degree in CS/CE/EE or related.
Linux, C, C++, Python, Bash, GitLab, JIRA, Claude Code
1mo
Save
Mark Applied
Hide
Sr Principal Linux Systems Administrator - Secret
Boulder, Colorado, United States
$129k-$194k/yr OnsiteFull Time
6+ YOEMust hold U.S. Secret clearance, meet 8140 IAT Level II (e.g., Security+) requirements, have extensive Linux server administration in a classified environment, cross-platform OS awareness, and meet degree/experience combination listed.
Red Hat Satellite, Ansible, HBSS, PRTG, Splunk, PowerShell, VMware, NFS, Microsoft Windows, Microsoft Active Directory, Cisco, Windows, Solaris, OSX, UNIX
2w
Save
Mark Applied
Hide
Software Linux Engineer - Installation and Packaging
Santa Clara or Westford or St. Louis or Boulder or New York
$152k-$288k/yr OnsiteFull Time
4+ YOEBachelor's or equivalent,4+ years software development with Linux system-level focus, experience with package managers and repositories, scripting in Python or Bash, strong debugging and collaboration skills.
Nix, dpkg, RPM, yum, apt, zypper, Python, Bash, Docker, Kubernetes
2w
Save
Mark Applied
Hide
Software Linux Engineer - Installation and Packaging
Santa Clara or Westford or St. Louis or Boulder or New York
$152k-$288k/yr OnsiteFull Time
4+ YOEBachelor's or equivalent, 4+ years Linux system-level software development, experience with package management, repository and release automation, Python or Bash scripting, CI/CD and kernel/driver familiarity.
dpkg, RPM, yum, apt, zypper, Nix, NixOS, Python, Bash, CI/CD, Docker, Kubernetes
22h
Save
Mark Applied
Hide
Senior Staff Linux System Administrator
Boulder, Colorado, United States
$120k-$146k/yr OnsiteFull Time
4+ YOE4-6 years administering RHEL systems, system hardening (STIG/SCAP), patch/package management, virtualization, containers, networking, troubleshooting, scripting/automation, and ability to obtain a Secret clearance.
RHEL, RHEL 8, RHEL 9, RHEL 10, VMware, VMware vSphere, Podman, Docker, Red Hat Openshift, Kubernetes, minikube, Image registries, DISA SCAP Compliance Checker, DISA STIG, Ansible, Bash, Python, Git, GitLab, CI/CD pipelines
3mo
Save
Mark Applied
Hide
Software Engineer - Embedded Linux (C++)
Boulder, Colorado, United States
$110k-$150k/yr OnsiteFull Time
3+ YOE3+ years C++ in embedded Linux; Linux kernel/driver experience; embedded systems; Git/CMake; STIGs; problem solving.
C++, Linux, Git, Make, CMake, Ubuntu, systemd, ARM, Nvidia Jetson, Linux kernel, device drivers, device trees, Deb packaging
2mo
Save
Mark Applied
Hide
Principal Engineer, Linux and Virtualization Infrastructure
Denver, Colorado, United States
OnsiteFull Time
7+ YOE7+ years Linux systems engineering; strong Linux/Unix, networking, SANs; virtualization with VMware, Proxmox, Docker, Kubernetes; infrastructure projects; strong communication.
Linux, VMware, Proxmox, Docker, Kubernetes, SAN, Fibre Channel, VxLAN, NAS, Windows
2mo
Save
Mark Applied
Hide
Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
7+ YOEDoD 8570 IAT Level II (Security+ or CISSP) or willingness to obtain; BS in CS/IT; 7+ years Linux server/desktop administration and network troubleshooting; DevOps knowledge; willingness to learn.
Linux, AWS, Puppet, IPA, Kubernetes, Ansible, Scripting
2mo
Save
Mark Applied
Hide
Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
7+ YOETS/SCI with Polygraph required; DoD 8570 IAT Level II (Security+ or CISSP) required or must obtain; Bachelor’s degree in CS/IT; ~7 years Linux system administration and network troubleshooting; cloud (AWS), DevOps, Puppet/IPA/Kubernetes/Ansible experience preferred.
Linux, Nutanix, AWS, IPA, Puppet, Kubernetes, Ansible
2mo
Save
Mark Applied
Hide
Senior Engineer II - Systems Design (Integration, Linux + Programming)
Colorado Springs or Home Office
$70k-$205k/yr RemoteFull Time
7.5+ YOEBachelor’s degree in IT/IS/Cybersecurity; 7.5-10 years of related experience; strong Linux and network skills; Python/shell scripting; DoD clearance or US citizenship.
Python, Shell scripting, Linux, RHEL, CentOS, Ubuntu, Nessus, ACAS, SCAP, STIGs, VMware, Docker, Git, Mercurial
2mo
Save
Mark Applied
Hide
Embedded Software Engineer III - Lunar Permanence
Seattle or Denver or Seattle
$165k-$231k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
6+ YOE6+ years embedded software in C/C++, Rust with Linux; BSP/driver development; hardware debugging with test equipment; strong C/C++/Rust and Linux scripting; teamwork.
C/C++, Rust, Linux, GDB, XSDB, Logic Analyzer, Oscilloscope, JTAG, Python, Matlab
3w
Save
Mark Applied
Hide
ADC Engineer I, Non-Relational Database Services, DBS Non Relational
Denver, Colorado, United States
$91k-$152k/yr OnsiteFull Time
1+ YOEActive TS/SCI clearance required; 1+ years systems administration (Linux/Windows); experience in 24x7 operational environments; strong Linux fundamentals; troubleshooting and automation skills; high school or equivalent or related certs.
Linux, UNIX, Windows
3mo
Save
Mark Applied
Hide
Product Test Developer I
Niwot, Colorado, United States
$20-$25/hr HybridFull Time
Basic electrical engineering knowledge; KiCad; Arduino; Windows basics; Git; Python; Linux testing.
KiCad, Arduino, Git, GitHub, Python, Windows, Linux, Raspberry Pi, Eagle, AVR Studio, Arduino IDE
2mo
Save
Mark Applied
Hide
Software Engineer Principal
Dallas or Strongsville or Phoenix or Denver or Pittsburgh
$65k-$166k/yr OnsiteFull Time
5+ YOELead enterprise platform engineering; strong Linux/Windows, PowerShell and Python; drift management; mentor team.
Linux, Windows Server, PowerShell, Python, Elastic, Dynatrace, AWS, Azure