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Freelance Human Systems Integration Jobs in California

JT4, LLC

Human Systems Integration - Engineer

Edwards, CA · On-site

$110K - $185K/yr

JOB DUTIES - ESSENTIAL FUNCTIONS JT4 is hiring junior to mid-level Human Systems Integration engineers. Candidates will perform a variety of engineering tasks in the field of aerospace human systems ...

Booz Allen Hamilton

Mission Integration Engineer

San Diego, CA · On-site

$110K - $148K/yr

You will conduct continuous engagement with Fleet operators, Human Systems Integration (HSI) practitioners, and stakeholders to identify operational challenges, user needs, workflow inefficiencies ...

Anduril Industries

Human Factors Engineer

Costa Mesa, CA · On-site

Anduril's Human Systems Integration (HSI)/Human Factors Engineering organization is seeking an experienced Human Factors Engineer to join our team. In this role, you will apply scientific principles ...

New

Anduril Industries

Human Factors Engineer

Costa Mesa, CA · On-site

Anduril's Human Systems Integration (HSI)/Human Factors Engineering organization is seeking an experienced Human Factors Engineer to join our team. In this role, you will apply scientific principles ...

New

Illumina

Systems Integration Engineer 1

San Diego, CA · On-site

$68 - $103/hr

Our efforts enable life-changing discoveries that are transforming human health through the early ... Systems Integration Engineer 1** at Illumina, you will work in a collaborative, team‐oriented ...

Illumina, Inc.

Systems Integration Engineer 1

San Diego, CA · On-site

$177K/yr

Our efforts enable life-changing discoveries that are transforming human health through the early ... As a Systems Integration Engineer 1 at Illumina, you will work in a collaborative, team-oriented ...

Illumina

Systems Integration Engineer 1

Coronado, CA · On-site

$68 - $103/hr

Our efforts enable life-changing discoveries that are transforming human health through the early ... As a Systems Integration Engineer 1 at Illumina, you will work in a collaborative, team‑oriented ...

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Freelance Human Systems Integration information

What is the difference between Freelance Human Systems Integration vs Human Factors Specialist?

AspectFreelance Human Systems IntegrationHuman Factors Specialist
CredentialsRelevant certifications, experience in systems integrationDegrees in psychology, ergonomics, or human factors; certifications often preferred
Work EnvironmentIndependent, project-based, often remote or client-siteEmployed by organizations, research labs, or consulting firms
Industry UsageUsed across aerospace, defense, healthcare, and tech industriesPrimarily in research, product design, and safety analysis

Freelance Human Systems Integration professionals focus on integrating human factors into complex systems on a project basis, often working independently. Human Factors Specialists typically work within organizations or consultancies, conducting research and designing user-centered solutions. Both roles require understanding of human behavior and system design, but differ mainly in employment setting and project scope.

What are the most commonly searched types of Human Systems Integration jobs in California?

The most popular types of Human Systems Integration jobs in California are:

What cities in California are hiring for Freelance Human Systems Integration jobs?

Cities in California with the most Freelance Human Systems Integration job openings:

Freelance Human Systems Integration jobs near you
Infographic showing various Freelance Human Systems Integration job openings in California as of July 2026, with employment types broken down into 15% Locum Tenens, 46% Full Time, 10% Part Time, 13% Contract, 15% Nights, and 1% Summer. Highlights an 67% Physical, 2% Hybrid, and 31% Remote job distribution.

Human Systems Integration - Engineer

JT4, LLC

Edwards, CA • On-site

$110K - $185K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 29 days ago

Key responsibilities

  • Perform engineering tasks related to aerospace human systems integration in design, development, testing, installation, and sustainment of electronic and mechanical equipment and systems.

  • Interface with project teams to provide human factors expertise, conduct research, and assist in technical problem-solving through analysis and design calculations.

  • Prepare and deliver technical reports, papers, and presentations, and conduct human factors surveys and laboratory investigations related to equipment or systems.

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.
JT4 will be hiring multiple candidates for this position with varying experience and skill levels. Salary ranges will be based on skill level and education.
JOB DUTIES - ESSENTIAL FUNCTIONS
JT4 is hiring junior to mid-level Human Systems Integration engineers. Candidates will perform a variety of engineering tasks in the field of aerospace human systems integration (HSI) in design, development, manufacturing, testing, installation, integration, sustainment, operations, and maintenance of electronic, and/or mechanical equipment and systems.
Work will involve evaluation, originality, or ingenuity and is generally performed as a member of a development, sustainment, or operations & maintenance team.
  • The candidate will conduct research and reference reading to assist higher-level engineers in obtaining human factors technical information; keep informed of currently approved standards, codes and procedures applied to human factors engineering specialty.
  • Perform engineering tasks that are varied, with established deadlines, and may be somewhat difficult in character with emphasis on the importance of human engineering and the impact of human performance on the flight test vehicle.
  • Interface with teams across the project to provide human factors expertise and analysis.
  • Plan and carry out successive human factors engineering stops and resolves technical problems by standard practices and techniques such as tolerance studies and design calculations.
  • Prepares, delivers, and submits technical papers and performs engineering studies.
  • Interacts with aircrew to develop and conduct human factors surveys and use computer-assisted test methods, conduct laboratory investigations on equipment or system.
  • Assists in preparation of reports, correspondence, or technical studies.
  • Studies currently approved standards, codes, and procedures applied to the HSI engineering specialty.
  • Prepares, delivers, and submits technical presentations for in-process design and review meetings.
  • Performs all other position-related duties as assigned or requested.

DESIRED QUALIFICATION
A Bachelor's Degree in Human Systems Engineering.
REQUIRMENTS - EDUCATION, TECHNICAL, AND WORK EXPERIENCE
The candidate must have a Bachelor of Science in Engineering from an ABET-accredited academic institution and four years of related engineering experience or have an accredited Master of Science in Engineering with at least 2 years of related engineering experience or have an accredited doctoral degree in engineering. The candidate must have mastery of concepts, principles, and practices of engineering that enables the employee to serve as a technical authority on projects relating to the specific programs. The position requires sufficient knowledge and skill to apply the latest developments in engineering to solve problems in the specialty area along with excellent communication and analytical skills. The candidate must have a working knowledge of computer systems and computer-based engineering tools and possess planning/organizing skills. The position may require the ability to investigate, troubleshoot, and design solutions to problems in operational hardware and software.
The candidate must possess a valid, state-issued driver's license. The candidate must be able to obtain and maintain a DoD security clearance up to top secret with special access. Must be a U.S. citizen.
SALARY
The expected salary range for this position is $110,000 to $185,000 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/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 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: JENG17, A1412TW
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About JT4

Sourced by ZipRecruiter

JT4 provides engineering and technical support to multiple western test ranges for the U.S. Air Force and Navy under the Joint Range Technical Services Contract, better known as J-Tech II. We develop and maintain realistic integrated test and training environments, and prepare our nation's war-fighting aircraft, weapons systems, and aircrews for today's missions and tomorrow's global challenges.

Industry

Engineering professional services

Company size

1,001 - 5,000 Employees

Headquarters location

Las Vegas, NV, US

Year founded

2001

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