Cyber Range Software Engineer (SWE-3)

Leidos has a new and exciting opportunity for a Cyber Range Software Engineer in our INTEL Sector. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary:Our program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Click here to learn more about how this program “Delivers Mission Success!”Your Main Objective: Looking for a software engineer to support Cyber Security Defensive Operations with configuration of Cyber Range consisting of 100s to 1000s of VMs utilizing Infrastructure as Code (IaC), Terraform, Ansible, VMWare and other automation technologies. You will work closely with Hunt, Red and Blue Team operators to understand their desired configurations for the Cyber Security Range to support training, force on force exercises, and mimicking of customer infrastructures. You will work with a team of other Software Engineers, System Administrators, Network Engineers and Systems Engineers supporting the Cyber Range and develop innovative solutions to complex problems.You will be part of a larger development team supporting the Cyber Security Directorate's Defensive Network Operations organization with direct mission support activities when not working on the Cyber Range.Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus.Job Responsibilities/Qualifications: Bachelor's degree plus 8 years of relevant experience or master’s degree plus 6 years of relevant experience. An associate’s degree plus 10 years of relevant experience or high school diploma/GED plus 12 years of relevant experience may be considered for individuals with in-depth experience that is clearly related to the position​​Computer Science (CS) degree or related fieldExperience with Infrastructure as Code (IaC)Experience with scripting languages such as Bash, PowerShell, Batch, and PythonExperience with networking and virtualizationNetwork engineering experience with Arista, Cisco and JuniperExperience with Terraform and AnsibleExperience with cybersecurity tools, network configurations, and operational toolsKnowledge of operating systems, including Windows and Linux, application behaviors, and network traffic analysisExperience in a fast-paced environment and working with flexible customer requirementsSecurity Clearance Requirement: Candidates must possess an active TS/SCI with Polygraph to be considered for this role.Desirable skills: Experience operating in an agile development environment and DevOpsExperience with container technologies such as Kubernetes and DockerKnowledge of penetration testing or red team operationsExperience utilizing and development with SplunkExperience with NutanixDefensive Cyber Security Operations ​​​At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today!Careers.leidos.comCONMDIf 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:June 4, 2026For 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:Pay Range $107,900.00 - $195,050.00The 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.SummaryLocation: Laurel, MDType: Full time