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Freelance Embedded System Software Engineer Jobs in Washington, IL

RFA Engineering

Embedded Software Engineer

Chillicothe, IL · On-site

$75K - $115K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Embedded Software Engineer This position is associated with the design and development of embedded ... Collaborate with electrical, systems, validation, and manufacturing teams to ensure successful ...

RFA Engineering

Sr. Embedded Software Engineer

Chillicothe, IL · On-site

$100K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

A typical embedded software engineer researches, designs, develops and tests operating systems-level software, compilers, and network distribution software for medical, industrial, military ...

RFA Engineering

Sr. Embedded Software Engineer

Chillicothe, IL · On-site

$100K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

A typical embedded software engineer researches, designs, develops and tests operating systems-level software, compilers, and network distribution software for medical, industrial, military ...

krg technology inc

Embedded Software Engineer

Mossville, IL

$95K - $126K/yr

This position involves working closely with Telematics systems engineers, and Telematics software ... Three to five years of embedded software experience. * Development experience using Object Oriented ...

Caterpillar

Embedded Software Engineer

Mossville, IL · On-site

$127K - $146K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Troubleshoot system malfunctions to restore normal function. Support the electrification ... Embedded Software Engineer / R0000380424] - # LI-DNI This position requires working onsite five ...

Tech Tammina LLC

Embedded Software Engineer

Mossville, IL · On-site

$95K - $126K/yr

Embedded Software Engineer Candidate will need to relocate to one of following locations ... Ability to design, plan and execute system testing strategies and tactics to ensure the quality of ...

Tech Tammina LLC

Embedded Software Engineer

Mossville, IL · On-site

$95K - $126K/yr

Embedded Software Engineer 4 location: Mossville, IL (Onsite) Duration: 6-month contract Core ... Systems Knowledge: Deep understanding of Linux-based development, multithreading, memory management ...

Caterpillar

Embedded Software Engineer - Web

Mossville, IL · On-site

$95K - $126K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Develops, designs, implements and tests software of embedded devices and systems; monitors and enhances the efficiency and stability of the systems. As a Software Engineer, you are responsible for ...

Actalent

Embedded Software Architect

Chillicothe, IL

$85 - $100/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Bachelor's degree in Computer Engineering, Electrical Engineering, Computer Science, Software Engineering, or a related field. * 8+ years of experience in software, systems, or embedded engineering ...

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Showing results 21-40

All JobsEmbedded System Software Engineer JobsFreelance Embedded System Software Engineer JobsFreelance Embedded System Software Engineer Jobs in Washington, IL

Freelance Embedded System Software Engineer information

See Washington, IL salary details

$66K

$144.7K

$164.1K

How much do freelance embedded system software engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for freelance embedded system software engineer in Washington, IL is $144,666.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,000.00 and $163,200.00 per year, depending on experience, location, and employer.

What does a freelance embedded system software engineer do?

A Freelance Embedded System Software Engineer designs, develops, and tests software that runs on embedded systems, which are specialized computing systems within larger devices like cars, appliances, or industrial machines. They typically work independently or on a contract basis, collaborating with clients to understand requirements and deliver customized software solutions. Their responsibilities often include writing low-level code, optimizing for performance and memory usage, and troubleshooting hardware-software integration issues.

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

To thrive as a Freelance Embedded System Software Engineer, you need a solid background in embedded C/C++ programming, microcontroller architecture, and real-time operating systems, often supported by a degree in electrical engineering or computer science. Familiarity with hardware debugging tools, version control systems (like Git), and development platforms such as ARM, AVR, or PIC is typically required. Strong problem-solving skills, self-motivation, and clear client communication help freelancers stand out in this role. These competencies ensure reliable, efficient solutions and successful project delivery in dynamic and client-driven environments.

How do freelance embedded system software engineers typically manage project scope and communication with clients?

Freelance embedded system software engineers often work independently or as part of small remote teams, making clear communication and project scope management essential. They regularly use project management tools and set milestones to clarify deliverables and timelines with clients. Addressing technical constraints and hardware integration challenges early in the process helps avoid misunderstandings. Frequent status updates and transparent discussions about changes or obstacles ensure projects stay on track and meet client expectations.

What is the difference between Freelance Embedded System Software Engineer vs Embedded Firmware Developer?

AspectFreelance Embedded System Software EngineerEmbedded Firmware Developer
CredentialsTypically requires a degree in electrical engineering, computer science, or related fields; certifications are optionalSimilar educational background; certifications like Certified Embedded Systems Engineer can be advantageous
Work EnvironmentIndependent, project-based work often remote; collaborates with multiple clientsUsually employed by a company or works on in-house projects; may work on-site or remotely
Industry UsageUsed across various industries including IoT, automotive, consumer electronicsPrimarily in product development, consumer electronics, automotive, and industrial systems

Both roles require embedded programming skills and knowledge of hardware. The main difference lies in the work setting: Freelance Embedded System Software Engineers work independently on diverse projects, while Embedded Firmware Developers are often employed by companies focusing on firmware development for specific products.

What cities near Washington, IL are hiring for Freelance Embedded System Software Engineer jobs?

Cities near Washington, IL with the most Freelance Embedded System Software Engineer job openings:

Freelance Embedded System Software Engineer jobs near you

Embedded Software Engineer

RFA Engineering

Chillicothe, IL • On-site

$75K - $115K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted just now

Job description

RFA Engineering ( is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an entry-level to experienced candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility.
This is a full-time position with a full benefit package listed below that includes opportunities for professional growth, direct hire by our customers, and additional opportunities within our own organization.
Embedded Software Engineer
This position is associated with the design and development of embedded software applications that control machine operations and functions used in heavy equipment, power systems, and off-highway vehicles. Development methods include C/C++ programming language and Model Based Software Design. Testing methods include bench testing, computer simulation testing, hardware-in-the-loop testing, and machine testing.
Responsibilities
  • Feature by feature embedded software development per Software Requirements Documents for applications that control machine and vehicle functions.
  • Integration of software in a multi-developer team environment using modern software development practices.
  • Functional and integration testing prior to hand-off to software test and evaluation groups.
  • Development and release status tracking using Agile development methodologies.
  • Creation and support of software used for prototype and production machine programs.
  • Troubleshoot and provide solutions for issues discovered during software development and validation activities.
  • Creation of software design documentation.
  • Design, develop, and modify software features and libraries used in embedded control systems.
  • Work with software architects and developers to research and investigate project-specific applications.
  • Develop and execute test cases to perform unit testing, integration testing, and regression testing.
  • Collaborate with electrical, systems, validation, and manufacturing teams to ensure successful product integration.
  • Support root cause investigations related to software and machine performance concerns.

Requirements
  • BS in Software, Computer, Electrical, or other relevant Engineering degree.
  • Experience with C or C++ development.
  • Strong verbal and written communication skills.
  • Self-motivated, quick learner, with an any-problem-can-be-solved attitude.
  • Good organizational and time management skills.
  • Ability to identify needed actions and act to resolve issues.
  • Ability to communicate technical information effectively.
  • Ability to thrive in a team environment.
  • Must have a valid Driver's License.

Desired Attributes
  • Experience with CAN J1939 & LIN communication protocols.
  • Experience with Simulink/Matlab Model Based Software Design.
  • Experience with GitHub or similar version control systems.
  • General machine knowledge of vehicles, mobile equipment, or heavy equipment.
  • Able to read/understand electrical schematics.
  • Experience with embedded controls or machine control systems.
  • Experience with Agile software development processes.
  • Desire to work in an engineering environment focused on advanced machine control technologies.

Visa sponsorship is NOT available for this position.
Pay Range: $75,000-$115,000 - Commensurate with experience
About RFA Engineering
RFA Engineering has provided product development and engineering services to industry leading customers since 1943. Our primary focus is the development of off highway equipment including agricultural, construction, mining, recreational, industrial, and special machines. Our work includes concept development, product design, documentation, problem-solving, simulation, optimization, and testing of components, systems and complete machines. Our engineering staff is located at our Engineering Center in Minneapolis, branch office in Dubuque, IA, and at numerous customer sites throughout the U.S.
Competitive Benefits
  • Health and Dental Insurance
  • Health Savings Account
  • TelaDoc: Virtual Health Care
  • Vision Insurance
  • Company Paid / Supplemental Life Insurance
  • Company Paid Long-Term Disability
  • Supplemental Short-Term Disability
  • Retirement Savings Account (Traditional 401k & Roth 401k)
  • Flexible Spending Plan Dependent Care
  • Bonus Plan (Exempt Employees Only)
  • Paid Time Off (PTO)
  • Paid Holidays
  • Bereavement Leave
  • Employee Assistance Programs (EAP)
  • Education Assistance

Equal Opportunity and Veteran Friendly
#ZR
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

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