387 - Cyber Range Software Engineer

Job Description

Job Description

About ARSIEM Corporation

At ARSIEM Corporation we are committed to fostering a proven and trusted partnership with our government clients.  We provide support to multiple agencies across the United States Government.  ARSIEM has an experienced workforce of qualified professionals committed to providing the best possible support.

As demand increases, ARSIEM continues to provide reliable and cutting-edge technical solutions at the best value to our clients.  That means a career packed with opportunities to grow and the ability to have an impact on every client you work with. 

ARSIEM is 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. 

This position will support one of our government clients in Laurel, MD.

Responsibilities

• 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.  
• 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. 
• 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.
• Join 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.

Minimum 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 field
• Experience with Infrastructure as Code (IaC)
• Experience with scripting languages such as Bash, PowerShell, Batch, and Python
• Experience with networking and virtualization
• Experience with Terraform and Ansible
• Experience with cybersecurity tools, network configurations, and operational tools
• Network Engineering experience with Arista, Cisco, and Juniper​
• Knowledge of operating systems, including Windows and Linux, application behaviors, and network traffic analysis
• Experience in a fast-paced environment and working with flexible customer requirements

Preferred Qualifications

• Experience operating in an agile development environment and DevOps
• Experience with container technologies such as Kubernetes and Docker
• Knowledge of penetration testing or red team operations
• Experience utilizing and development with Splunk
• Experience with Nutanix
• Defensive Cyber Security Operations ​​​

The ARSIEM 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 laws.

Benefits:
For an overview of our benefits, please visit our benefits tab.

Original Posting Date:
2026-06-24

Clearance Requirement : This position requires an active TS/SCI with a polygraph. You must be a US Citizen for consideration.

Candidate Referral : Do you know someone who would be GREAT at this role? If you do, ARSIEM has a way for you to earn a bonus through our referral program for persons presenting NEW (not in our resume database) candidates who are successfully placed on one of our projects. The bonus for this position is $10,000, and the referrer is eligible to receive the sum for any applicant we can place within 12 months of referral. The bonus is paid after the referred employee reaches six months of employment.

ARSIEM is proud to be an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age, or any other federally protected class.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.