Senior Systems Engineer

Job Description

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.

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, Wire Guard, OpenVPN, MACsec, and TLS
• Useful operational documentation, including diagrams, build notes, troubleshooting steps, and system summaries

You will work closely with Dev Ops, Network Engineering, Security Operations, and other infrastructure engineers to harden systems, automate repetitive work, improve visibility, and reduce operational friction.

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.

• 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

• 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 Dev Ops to automate manual or repetitive tasks
  
  Improve monitoring, alerting, and operational visibility
• Produce documentation that helps the next engineer troubleshoot faster

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/Forti Gate
• IPSec, Wire Guard, OpenVPN, MACsec, and TLS
• OSPF, VRF, and MPLS
• Monitoring, logging, and operational visibility tools

• Active Top Secret clearance
• 8+ years of relevant hands‑on systems, infrastructure, cloud, or network engineering experience
• Strong Linux experience, including real command‑line troubleshooting and administration
• Solid understanding of TCP/IP, the OSI model, and networking fundamentals
• Experience troubleshooting across systems, networks, virtualization, cloud, and security boundaries
• Familiarity with secure tunneling and encryption technologies such as IPSec, OpenVPN, Wire Guard, TLS, or MACsec
• Ability to work with other mid‑to‑senior engineers in a technical, collaborative environment
• Strong technical aptitude and curiosity
• Bias for action
• Ability to work independently and follow through
• Clear written and verbal communication skills

• Experience…