Software Engineer

Leidos Defense is seeking aSenior Software Engineer to join our team in ourSan Diego facility, supporting the U.S. Navy’s AN/SQQ-89(V) Anti-Submarine Warfare (ASW) systems.

Our program helps modernize Navy ships by replacing outdated sonar systems with updatedAN/SQQ-89(V)15 systems, supporting the installation, logistics, quality checks, and training needed to prepare ship personnel to operate the new systems.

In this role, you will focus on modernizing the AN/SQQ-89(V) ASW Training System by transitioning Tactical Insertion (TI) hardware-based solutions to a scalable, virtualized Linux training platform. You’ll work withRed Hat Enterprise Linux (RHEL), KVM, Open vSwitch, Python, Ansible, and hardware passthrough technologies to support complex Navy training and simulation environments.

What You'll Do

• Design, deploy, and maintain virtualized environments supporting AN/SQQ-89(V)15 training capabilities.

• Migrate software and services from Tactical Insertion hardware platforms to virtualized environments using KVM, libvirt, virsh, and VirtIO.

• Build and maintain RHEL 7/8 system images, templates, and repositories.

• Develop automated deployment and configuration solutions using Ansible.

• Create Python utilities and scripts for system administration, testing, monitoring, and data management.

• Configure and maintain Open vSwitch environments supporting multiple networks and high-throughput virtual machine communications.

• Integrate physical and virtual networking within tactical training environments.

• Troubleshoot complex virtualization, Linux, networking, storage, hardware, and application integration issues.

• Support performance tuning and optimization of virtualized systems, networking, storage, and compute resources.

• Support software integration, system verification, validation, and acceptance testing.

• Collaborate with software developers, systems engineers, cybersecurity personnel, and training system stakeholders.

• Support cybersecurity compliance activities, including STIG implementation, vulnerability remediation, and RMF activities.

• Develop and maintain architecture diagrams, deployment guides, standard operating procedures, and automation documentation.

• Support modernization efforts focused on improving the portability, scalability, and maintainability of training environments.

What We're Looking For

• Bachelor's degree with4–8 years of relevant experience, or a Master's degree with2–6 years of relevant experience.

• Experience with Linux systems engineering, virtualization, software development, or platform engineering.

• Experience administeringRed Hat Enterprise Linux (RHEL) environments.

• Strong experience withKVM, libvirt, and virsh.

• Experience implementing and troubleshootingOpen vSwitch (OVS).

• Experience with hardware passthrough technologies, includingPCIe passthrough, VFIO, SR-IOV, and IOMMU configuration.

• Experience developing infrastructure automation usingAnsible.

• Experience developing software and automation tools usingPython.

• Strong understanding of Linux networking concepts, including VLANs, bridges, routing, bonding, and virtual switching.

• Experience troubleshooting integration issues across hardware, operating systems, networking, and applications.

• Ability to obtain and maintain aDoD security clearance.

Preferred Qualifications

• Experience supportingAN/SQQ-89(V)15 or AEGIS combat systems.

• Red Hat Certified Engineer (RHCE).

• Experience with high-performance networking and low-latency virtualized environments.

• Experience supporting GPU, FPGA, capture card, or other specialized hardware passthrough to virtual machines.

• Familiarity with distributed storage, NFS, iSCSI, and SAN technologies.

• Experience with FreeIPA, LDAP, Kerberos, and enterprise Linux identity management.

• Experience supporting RMF, STIG implementation, ACAS, and cybersecurity compliance initiatives.

• ActiveSecret or Top Secret clearance.

If you have a strong Linux and virtualization background and are interested in applying those skills to modernize U.S. Navy training systems, we encourage you to apply.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.