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Freelance Simulation Software Engineer Jobs (NOW HIRING)

Zipline

Simulation Software Engineer

Ann Arbor, MI · On-site

$180K - $220K/yr

We are seeking a Simulation Software Engineer to build and evolve the core infrastructure that validates our entire robotics fleet software. This is not a standard simulation role; it is deep ...

Zipline

Simulation Software Engineer

Ann Arbor, MI · On-site

We are seeking a Simulation Software Engineer to build and evolve the core infrastructure that validates our entire robotics fleet software. This is not a standard simulation role; it is deep ...

New

Toyon

Simulation Software Engineer

Goleta, CA

$110K - $180K/yr

Toyon is seeking a highly motivated software engineer to develop and maintain an internal space systems modeling and simulation application written in C++. The candidate will also deploy scripted ...

METECS

Junior Simulation Software Engineer

Houston, TX · On-site

METECS is seeking an entry-level Simulation Software Engineer to support NASA's simulation efforts as part of the Robotics, Simulations, and Graphics Support (RSGS) team. This role is ideal for ...

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Freelance Simulation Software Engineer information

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How much do freelance simulation software engineer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for freelance simulation software engineer in the United States is $137,846.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,000.00 and $162,000.00 per year, depending on experience, location, and employer.

What does a freelance simulation software engineer do?

A Freelance Simulation Software Engineer designs, develops, and tests simulation software for various industries, such as aerospace, automotive, healthcare, or manufacturing. They work independently or on contract to model real-world systems, create virtual environments, and run simulations to analyze system behaviors. Responsibilities often include coding, debugging, optimizing algorithms, and collaborating with clients to meet project requirements. Freelancers typically manage their own schedules and work with multiple clients, offering flexibility and a diverse range of project experiences.

What are the key skills and qualifications needed to thrive as a freelance simulation software engineer?

To excel as a Freelance Simulation Software Engineer, you need strong programming skills (such as C++, Python, or MATLAB), a solid understanding of simulation methodologies, and a relevant degree in engineering, computer science, or a related field. Familiarity with industry-standard simulation tools like Simulink, ANSYS, or Arena, and experience with version control systems are often required. Outstanding problem-solving abilities, self-motivation, and effective client communication distinguish top performers in this freelance role. These competencies enable the engineer to deliver accurate, efficient simulations and manage projects independently, ensuring client satisfaction and professional growth.

What are some common challenges faced by freelance simulation software engineers when managing multiple client projects?

Freelance Simulation Software Engineers often juggle several projects at once, each with unique technical requirements and deadlines. Balancing these projects can be challenging, especially when clients have shifting priorities or last-minute requests. Effective communication, clear project scoping, and robust time management are crucial to ensure client expectations are met while maintaining high-quality work. Additionally, freelancers must stay updated with the latest simulation tools and standards, which can require continuous self-directed learning.

What is the difference between Freelance Simulation Software Engineer vs Simulation Software Developer?

AspectFreelance Simulation Software EngineerSimulation Software Developer
CredentialsTypically requires a degree in computer science, engineering, or related fields; certifications are a plusSimilar educational background; certifications may enhance prospects
Work EnvironmentIndependent, project-based work often remotely or freelance platformsEmployed by companies or organizations, working in office or remote teams
Employer & Industry UsageClients across various industries like aerospace, automotive, defense; freelance platformsCompanies developing simulation software or using simulation tools internally
Search & Comparison IntentLooking for freelance opportunities or project-based work in simulation softwareSeeking full-time or contract roles within organizations

The main difference is that a Freelance Simulation Software Engineer works independently on diverse projects, often remotely, while a Simulation Software Developer is typically employed by a company to develop and maintain simulation software as part of a team.

More about Freelance Simulation Software Engineer jobs

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What states have the most Freelance Simulation Software Engineer jobs?

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For Freelance Simulation Software Engineer jobs, the most frequently searched job titles are:

Freelance Simulation Software Engineer jobs near you
Infographic showing various Freelance Simulation Software Engineer job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 86% Full Time, 9% Part Time, and 3% Contract. Highlights an 85% Physical, 3% Hybrid, and 12% Remote job distribution, with an average salary of $137,846 per year, or $66.3 per hour.

HWIL Simulation Software Engineer

Huntsville, AL • On-site

KODA Technologies
Guided Missile and Space Vehicle Manufacturing • 51 - 200 employees
Learn more about KODA Technologiesexternal

Other

Posted 24 days ago

Job description

HWIL Simulation Software Engineer Company Overview:

KODA is a people-first company and a three-time Fortune Best Workplace®, Great Place to Work®, Best Place for Working Parents®, and a seven-time Huntsville Best Places to Work® winner.

We're a small business making a big impact on national-priority missions in missile defense, hypersonics, DoD space, and civil space. At KODA, you'll find:

  • Competitive pay & great benefits
  • Career growth & professional development
  • A culture of trust, integrity, and teamwork

The name KODA, meaning "allies," reflects our commitment to our people, our customers, and our community. Join us and build a career that matters!

Position Overview:

KODA Technologies is seeking a HWIL Simulation Software Engineer to join our Flight Software / GNC / Modeling and Simulation Integration team that develops simulation software. The candidate will provide support for the integration and test of FSW, GNC, and simulation products in a Hardware in the Loop (HWIL) testbed. Our team is located in Huntsville, AL. Active Secret Clearance is required.

Key Responsibilities:
  • Maintain and develop simulation software
  • Integrate, verify, and validate subsystem truth simulation models into a vehicle level simulation
  • Develop and integrate end to end test scripts that drive the HWIL for requirements V&V
  • Work closely with Navigation, Guidance & Control, Flight Software, and HWIL teams to ensure compliance with integration standards and test procedures
  • Understand and operate the Hardware In the Loop Testbed, including configurations, tools, and processes
  • Collaborate with engineering groups to resolve technical problems, communicate status, and maintain documentation
  • Uphold rigorous standards and processes through strong organizational and communication skills
Required Qualifications:
  • Post secondary STEM degree with 5 – 10+ years of relevant experience
  • Willing to work onsite in a classified area / lab environment
  • Experience developing and maintaining simulation software
  • Experience with Linux, C++, MATLAB, and/or Python
  • Experience with integrating and testing hardware/software products or equivalent technical experience
  • Ability to diagnose and resolve software configuration or baseline issues during integration and installation phases
  • Review problem reports and enhancement requests to assess impacts on testing and regression plans
  • Ability to work independently with minimal supervision
  • Good verbal, written, and interpersonal communication skills
Desired Skills and Experience:
  • Experience with DevOps/DevSecOps CI/CD pipelines and software version control such as Git
  • Experience deploying software that satisfy real-time performance requirements
  • Experience in weapon system and/or sensor modeling, both for the items to be modeled, and the synthetic modeled environments used to stimulate the simulated hardware
  • Knowledge of systems engineering principles, including requirements development and verification
Clearance:

Active DoW Secret Clearance; U.S. citizenship is required

Other:

On-Site, Full-Time in Huntsville, AL.

KODA Technologies Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, gender identity, sexual orientation, pregnancy, status as a parent, national origin, disability (physical or mental), family medical history or genetic information, political affiliation, military service, or other non-merit based factors. If you are unable to complete this application due to a disability, contact info@kodatech.com to ask for an accommodation or an alternative application process.

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