Skip to main content
Posted 20 July, 2026

Computer Scientist III

JT4 LLC
Las Vegas, NV, US Full Time

Job Description

JT4, LLC provides engineering and technical support to multiple western test ranges for the U.S. Air Force, Space Force, and Navy under the Joint Range Technical Services Contract, better known as J-Tech II. JT4 develops and maintains realistic, integrated test and training environments and prepares our nation's war-fighting aircraft, weapons systems, and aircrews for today's missions and tomorrow's global challenges. JOB SUMMARY - ESSENTIAL FUNCTIONS We are seeking software engineer with experience in C#/.NET desktop application development, specifically using WPF front-end to design, build, and maintain high-performance applications that handle large data sets to provide a polished, intuitive user experience. This role is ideal for someone who enjoys working across the full application stack: data ingestion, processing, database, business logic, and user interface. The engineer will contribute to modernizing existing tools, improving application performance and build reusable UI-components. The ideal candidate is comfortable both working independently and collaborating with technical and non-technical users directly. DESIRED QUALIFICATIONS Experience with C# and WPF, object-oriented design following SOLID design principles. Understanding of well-known design patterns is a plus. Experience with government, defense, engineering, aerospace, data analysis or scientific environments are a plus. Hands-on experience visualizing data using LightningCharts software a bonus. REQUIREMENTS - EDUCATION, TECHNICAL, AND WORK EXPERIENCE One of the following educational requirements must be met for this position: A bachelor's degree in an associated discipline and a minimum of four years of related experience A master's degree in an associated discipline and a minimum of two years of experience A PhD in an associated discipline In addition, a Computer Scientist III must possess the following qualifications: Experience with computer-based systems and applications Programming skills in languages used for job-specific programming tasks Familiarity with the application of industry standard hardware and software design and documentation techniques Experience with systems engineering and software development lifecycles Effective oral and written communication skills Good planning/organizational skills BENEFITS Medical, Dental, Vision Insurance Benefits Active on Day 1 Life Insurance Health Savings Accounts/FSA’s Disability Insurance Paid Time Off 401(k) Plan Options with Employer Match JT4 will match 50%, up to an 8% contribution 100% Immediate Vesting Tuition Reimbursement OTHER RESPONSIBILITIES Each employee must read, understand, and implement the general and specific operational, safety, quality, and environmental requirements of all plans, procedures, and policies pertaining to their job. WORKING CONDITIONS Work is performed in a typical office environment with no unusual hazards. Occasional lifting (up to 20 pounds), constant sitting with occasional use of computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness are required. Travel to remote company work locations may be required. DISCLAIMER The above statements are intended to describe the general nature and level of work being performed by personnel assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties, and skills required of persons so classified. Tasking is in support of a Federal Government Contract that requires U.S. citizenship. Some jobs may require a candidate to be eligible for a government security clearance, state-issued driver's license, or other licenses/certifications, and the inability to obtain and maintain the required clearance, license, or certification may affect an employee's ability to maintain employment. SCC: JSD12; JCORP12