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 DUTIES - ESSENTIAL FUNCTIONS
The Software Systems Engineer is a senior-level engineering position that will provide technical oversight and expertise on high level design and development of software, hardware and firmware systems. This includes overseeing projects from conception to completion, ensuring quality control and industry standards are enforced across all projects, while providing peer reviews and technical guidance as needed.
An ideal Senior Software System Engineering candidate will be able to demonstrate the following:
- Deep understanding of Agile development projects with extensive experience in various programming languages (e.g. Python, C#, C++, Linux, Java), network architectures (e.g. TCP/IP, UDP), databases (e.g. SQL/NoSQL) and have a strong knowledge of operating systems, cloud platforms, and artificial intelligence.
- Familiarity with telemetry standards (e.g. IRIG 106), open-source software frameworks (e.g. Open MCT), aircraft and ground instrumentation systems, real-time data processing and cybersecurity.
- Communication excellence: Ability to communicate both verbally and in writing to effectively convey complex technical information to diverse audiences including vendors, subcontractors, customers, engineering teams, non-technical stakeholders and JT4 leadership.
The Senior Software System Engineer will be responsible for the following functions:
- Technical Expertise: Evaluate current development designs and approaches to ensure technical specifications and requirements are being met. Ensure all development projects adhere to industry, quality, and security standards. Provide innovative and cost-effective engineering methodologies and practices to various development teams.
- Engineering Exchange: Facilitate and lead collaborative discussions with the customer and technical staff to include JT4 Technical exchanges and working groups. Participate in relevant engineering conferences such as ITEA and ITC. Coordinate, implement and oversee cross utilization of various technical expertise across the JT4 Enterprise. Act as a subject management expert resource on complex software and hardware development
- Project Management: Assist IPT project manager on overseeing multiple development projects simultaneously with duties including but not limited to: identifying potential risks, evaluating timelines and resources and ensuring all technical requirements are met.
- Team Leadership: Provide technical mentorship, training and guidance to technical staff and assist in resolving engineering challenges. Develop and apply advanced methods, theories, and research techniques in the investigation and solution of complex system design projects.
- Procurement: Support procurement activities for various projects as needed to include drafting of statements of work, vendor evaluations, as well as subcontract development and monitoring.
- Reporting and Analysis: Monitor key performance indicators and metrics and generate monthly performance reports that identify high performance as well as any areas needing improvement. Prepare and deliver technical engineering study-based papers.
- Innovation and Development: Stay up to date on emerging technologies and identify opportunities to incorporate new advancements into projects.
- Perform other job-related duties, as required.
REQUIREMENTS - EDUCATION, TECHNICAL, AND WORK EXPERIENCE
One of the following education requirements must be met for this position:
- A bachelor's degree in an associated discipline and a minimum of 14 years of related experience
- A master's degree in an associated discipline and a minimum of 10 years of experience
- A PhD in an associated discipline and a minimum of eight (8) years of experience
In addition, a Computer Scientist V must possess the following qualifications:
- Demonstrated expertise with computer-based systems and applications
- Senior-level programing skills in languages used for job-specific programming tasks
- Senior-level expertise in the application of industry standard hardware and software design and documentation techniques
- Extensive knowledge of systems engineering and software development lifecycles
- Excellent verbal and written communication skills
- Excellent planning/organizational skills
- Ability to work under deadlines
- Must possess a valid, state issued driver's license
- Must be able to obtain and maintain security clearance
- Must be a U.S. citizen
SALARY
The expected salary range for this position is $140,000 to $190,000 annually.
Note: The salary range offered for this position is a good faith description of the expected salary range this role will pay. JT4, LLC considers factors such as (but not limited to) responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.
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 while using the 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, A1412TW
Skills Required
- Bachelor's degree and 14 years related experience OR Master's degree and 10 years experience OR PhD and 8 years experience
- Demonstrated expertise with computer-based systems and applications
- Senior-level programming skills (Python, C#, C++, Java) and development on Linux
- Deep understanding of Agile development methodologies
- Experience with network architectures (TCP/IP, UDP)
- Experience with databases (SQL and NoSQL)
- Knowledge of cloud platforms and artificial intelligence applications
- Familiarity with telemetry standards (IRIG 106), Open MCT, aircraft and ground instrumentation systems, and real-time data processing
- Senior-level expertise in industry-standard hardware and software design and documentation techniques
- Extensive knowledge of systems engineering and software development lifecycles
- Experience and awareness of cybersecurity best practices
- Excellent verbal and written communication skills
- Excellent planning and organizational skills and ability to work under deadlines
- Valid state-issued driver's license
- Must be able to obtain and maintain a government security clearance
- Must be a U.S. citizen
JT4 Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about JT4 and has not been reviewed or approved by JT4.
-
Healthcare Strength — Multiple medical plan choices (including an HDHP with HSA), plus dental with orthodontia, vision, wellness programs, and FSAs/HSAs expand total rewards beyond base pay. Coverage breadth is emphasized as a compensation strength alongside stability.
-
Affordable Benefits — Low- or zero-premium options are advertised, increasing the value of total compensation when insurance costs are factored in. Affordability is highlighted together with education assistance as part of the package.
-
Leave & Time Off Breadth — Posted allowances include 3–5 weeks of paid leave by tenure, 80 hours of paid holidays, and 7 sick days for hourly roles. Generous stated PTO and holidays can materially enhance overall compensation value.
JT4 Insights
What We Do
JT4 provides engineering and technical support to multiple western test ranges for the U.S. Air Force and U.S. Navy under the Joint Range Technical Services Contract, better known as J-Tech II. Ranges supported by JT4 include the Nevada Test and Training Range (NTTR), the Space Test and Training Range (STTR) at Schriever Air Force Base, the Utah Test and Training Range (UTTR), the Air Force Test Center 412th Test Wing (412TW) at Edwards Air Force Base, and the Navy China Lake Ranges (CLR) including Pt. Mugu, California.






