We are looking for an experienced, cleared Senior Systems Engineer to join our infrastructure team. This role is for someone who likes building, fixing, improving, and owning systems. You should be comfortable at the Linux command line, understand how networks actually work, and be able to move across operating systems, virtualization, cloud, security, automation, and documentation without needing everything perfectly defined up front. The right person has strong technical curiosity, a bias for action, and enough hands-on experience to know when to move fast and when to slow down and do it right. The work is hands-on, technical, and important. You will help engineer, deploy, secure, and maintain mission-focused infrastructure in a collaborative environment with other mid-to-senior engineers. Why You Want to Work Here You will be working with other like-minded technical people who enjoy infrastructure, Linux, networking, automation, security, and solving hard problems. You will not be on an island. You will be supported by a highly technical 24x7 Network and Security Operations Center that keeps eyes on the environment around the clock. That means you can focus on engineering, improvement, and problem solving without living under constant on-call pressure or rolling out updates at 0-dark-30. You will also get your choice of laptop: MacBook, Windows, or Linux. Windows is technically an option, but seriously, why? Mac or Linux is obviously the correct answer. We also try to make the environment human. We have an active board game group, Xbox gamers, and people who genuinely enjoy hanging out with other geeks. If you want to work with serious technical people, solve real problems, and still have a life outside of work, this is a good place to do that.What You Will Do You will help configure, deploy, maintain, and improve: Linux systems, primarily Debian and Ubuntu, with a small number of Windows systems VMware ESXi, vSphere, vCenter, and vSAN Cloud infrastructure and services in environments such as AWS and GCP Network infrastructure including switches, routers, and firewalls Secure connectivity using IPSec, WireGuard, OpenVPN, MACsec, and TLS Useful operational documentation, including diagrams, build notes, troubleshooting steps, and system summaries You will work closely with DevOps, Network Engineering, Security Operations, and other infrastructure engineers to harden systems, automate repetitive work, improve visibility, and reduce operational friction. What You Should Be Good At You should be the kind of engineer who can look at a problem holistically and start breaking it down. Maybe it is DNS. Maybe it is routing. Maybe it is Linux permissions. Maybe it is a firewall rule. Maybe it is VMware. Maybe it is AWS. Maybe it is something weird that only shows up once every few weeks. You do not need to know everything, but you do need to know how to troubleshoot, learn, ask good questions, and keep moving. We care about people who can: Build reliable systems Understand how packets move Troubleshoot across layers Automate the boring stuff Write things down clearly Improve the environment, not just maintain it Work independently without going dark Collaborate well with other technical engineers Communicate clearly when something is broken, blocked, or at risk What You Will Accomplish in the First Six Months Within your first six months, you should be able to: Deploy hardened Linux systems and bring them into production Take ownership of assigned systems and understand how they fit into the larger environment Support infrastructure across on-prem, virtualized, and cloud environments Identify areas where infrastructure can be improved, simplified, or better secured Partner with DevOps to automate manual or repetitive tasks Improve monitoring, alerting, and operational visibility Produce documentation that helps the next engineer troubleshoot fasterTechnologies in Our Stack You do not need to be an expert in every one of these, but you should be comfortable working across a real infrastructure stack. Debian and Ubuntu Linux Windows Server in limited areas VMware ESXi, vSphere, vCenter, and vSAN AWS, GCP, and related cloud services Docker and related container technologies Ansible and Jenkins Cisco IOS, Cisco NX-OS, Juniper, and Fortinet/FortiGate IPSec, WireGuard, OpenVPN, MACsec, and TLS OSPF, VRF, and MPLS Monitoring, logging, and operational visibility tools