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Software Systems Engineer - China Lake

Jt4

Ridgecrest, CA · Posted October 15, 2026

More in California job market · Aerospace & Defense · Engineering jobs

About the job

JT4, LLC is looking for a Software Systems Engineer that is highly proficient with object oriented software design and that is also well versed with live-virtual-constructive simulation and aircraft avionics to MIL-STD-1153 and MIL-STD-1773. The position will manage software/system projects and provide guidance to technical staff.

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.

**An ideal candidate will have an active secret clearance**

**This position located at China Lake and is not eligible for telework**

Range Requirements

Demonstrates a knowledge of standard programming algorithms, design patterns, and object-oriented software design

Demonstrated ability to program using C++ language code, C, and Python 3

Develops parallel processes, threading, process communication

Familiar with utilizing Git for daily code management, including branching, merging, and resolving conflicts within a collaborative development environment

Works proficiently with Git in both Bash (Linux) and Windows environments

Interacts with remote repositories, pushes code updates, and manages local repositories

Adheres to established branching strategies and understands the implications of working with master/production branches

Collaborates with team members to design future enhancements

Familiarity with time-series analysis a plus

Familiarity with Red Hat Linux

Familiarity with live-virtual-constructive simulation and aircraft avionics, MIL-STD-1153 and MIL-STD-1773

Individual must be capable of obtaining and maintaining a DOD Top Secret clearance

Job Summary -- Essential Functions/Duties

A Software Systems Engineer III provides software and systems engineering services, generally within a work unit or group.

Employee will be responsible for the following functions/duties:

Advise team and project managers on technical problems

Interact with customers and project managers on a regular basis

Work independently of direct supervision on projects of high complexity

Use judgment and initiative in developing complex analytical and computational technologies and methodologies for solving problems, which may be technically unique to the industry

Interpret customer requirements and develop and analyze the most appropriate approach to solve technical problems

Develop design of system/software and associated design documentation

Prepare and conduct design reviews

Implement design through software coding or hardware and appropriately document the design implementation

Plan and execute unit, integration, and system testing

Participate in maintenance and sustainment activities of system/software

Provide work direction or other guidance to subordinate technical staff

Establish and maintain positive customer relations

May support pursuit of new business efforts, lead proposal efforts, and act as a technical consultant

Perform other job-related duties, as required

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 Software Systems Engineer 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

Salary

The expected salary range for this position is $127,358 to $142,358 annually.

Note : The salary range offered for this position is a good faith description of the expected salary range this role will pay. JT4 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/business considerations when extending an offer.

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; A4CLR