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Leidos
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August 13, 2026
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Junior CEMA Software Engineer

Lawton, OK
Full-time
Onsite
Entry Level
Leidos is a defense and engineering company developing solutions for complex problems in engineering, spectrum warfare, and defense domains. The Junior CEMA Software Engineer will design, build, deploy, and maintain mission-critical software, support offensive and defensive cyber tool development, create CEMA simulations, and research cybersecurity threats against military systems.
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Responsibilities

  • Support a team of software engineers in developing offensive and defensive cyber tools focused on radar, C2, surface-to-air, and artillery systems
  • Develop simulations to emulate threat-representative Cyber and Electromagnetic Activities (CEMA) effects and environments
  • Research current and future cybersecurity threats against military systems

Qualification

Required

  • Candidate must possess at least a Bachelor's Degree in Electrical Engineering, Computer Engineering, Software Engineering, Computer Science, or related technical degree
  • Candidate must be willing to travel approx. 10% each year if necessary — moderate travel to testing locations, typically CONUS
  • Experience with Agile software development, CI/CD toolchains, and DevOps (e.g., Atlassian suite, git, Jenkins, Artifactory)
  • Proficient in Python (OOP) or C++
  • Experience working as a member of a Scrum team, contributing to iterative development and Agile collaboration
  • Must live in **or** be willing to relocate to Lawton, OK
  • Must be a US Citizen
  • Must have the ability to obtain and maintain a Final Top-Secret clearance

Preferred

  • Experience in software architecture and design
  • Deep understanding of Linux platforms
  • Experience with Modern C++ (17/20) standards
  • Understanding of multi-threaded programming
  • Experience and interest in cybersecurity
  • Experience and interest in fundamental networking implementations and concepts
  • Experience and interest in machine learning and data science
  • Experience with PySide, Qt, or QML for application/UI development
  • Experience with the following tools, concepts, and products is a plus:
  • Ubuntu, Red Hat, Kali Linux, or similar
  • Networking Protocols
  • Wireshark

Benefits

Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.
Glassdoor
3.9
Founded in 1969
Reston, Virginia, USA
10001+ employees
https://www.leidos.com
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.
Glassdoor
3.9
Founded in 1969
Reston, Virginia, USA
10001+ employees
https://www.leidos.com