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Freelance Embedded System Software Engineer Jobs in Seguin, TX

Eden Technologies Inc

Software Engineer

Lockhart, TX · On-site

$130K - $165K/yr

The ideal candidate has experience with embedded systems, IoT or edge computing, Python, C/C++, and ... Hands-on software engineering experience with embedded systems, IoT, edge computing, control ...

Cymertek

Signals Software Engineer

San Antonio, TX · On-site

SIMILAR CAREER TITLES Signals Software Engineer, Signal Processing Engineer, DSP Engineer, Software Engineer for Signal Processing, Embedded Systems Engineer, Communication Systems Engineer, RF ...

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All JobsEmbedded System Software Engineer JobsFreelance Embedded System Software Engineer JobsFreelance Embedded System Software Engineer Jobs in Seguin, TX

Freelance Embedded System Software Engineer information

See Seguin, TX salary details

$62.2K

$136.3K

$154.7K

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

As of Aug 22, 2026, the average yearly pay for freelance embedded system software engineer in Seguin, TX is $136,350.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,900.00 and $153,800.00 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 are popular job titles related to Freelance Embedded System Software Engineer jobs in Seguin, TX?

For Freelance Embedded System Software Engineer jobs in Seguin, TX, the most frequently searched job titles are:

What cities near Seguin, TX are hiring for Freelance Embedded System Software Engineer jobs?

Cities near Seguin, TX with the most Freelance Embedded System Software Engineer job openings:

Freelance Embedded System Software Engineer jobs near you
Infographic showing various Freelance Embedded System Software Engineer job openings in Seguin, TX as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $136,350 per year, or $65.6 per hour.

Embedded Systems Engineer

CACI International, Inc.

San Antonio, TX • On-site

Full-time

Medical, Retirement, PTO

Re-posted yesterday

Job description

Job Title: Embedded Systems Engineer
Job Category: Engineering
Time Type: Full time
Minimum Clearance Required to Start: Secret
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
* * *
The Opportunity:
Lead the development of next-generation battery-powered test instrumentation from concept through production for military aircraft applications with CACI's Aerospace Solutions Group on-site in San Antonio, TX.
As the Embedded Systems Engineer you will design cutting-edge embedded systems with low Size, Weight, And Power (SWAP) requirements utilizing ARM-based architectures
developing advanced test equipment. You will collaborate directly with systems engineering teams to create innovative solutions for military avionics test applications.
Be part of a multi-disciplinary engineering team supporting critical USAF programs with opportunities for professional growth in aerospace and defense technologies.
Responsibilities:
  • Design and develop battery-powered test instrumentation systems utilizing ARM architecture (Cortex-A/M series processors)
  • Implement embedded system power optimization techniques to achieve low SWAP requirements for portable test equipment
  • Design circuit cards using Altium Designer from schematic capture through PCB layout, fabrication, and assembly
  • Develop and integrate FPGA designs for signal processing, control, and data acquisition applications
  • Perform circuit analysis, simulation, and verification using industry-standard tools and test equipment
  • Develop embedded software and firmware for RedHat Enterprise Linux (RHEL) Edge and Ubuntu Linux platforms
  • Integrate and troubleshoot serial communication protocols including I2C, USB, RS-232, RS-485, and SPI
  • Collaborate with systems engineering team to develop requirements, system architectures, and verification strategies
  • Support product lifecycle management from concept to delivery within cost, scope, and schedule constraints
  • Conduct design reviews and peer reviews, providing technical documentation and justification for design decisions
  • Interface with USAF customers regarding development progress, technical solutions, and requirements clarification
  • Troubleshoot and debug hardware and software issues using oscilloscopes, logic analyzers, and diagnostic tools

Qualifications:
Required:
  • Bachelor's Degree in Electrical Engineering, Computer Engineering, Embedded Systems, or related engineering discipline
  • 10 years of professional experience in embedded systems design and development
  • Proven experience with ARM architecture (Cortex-A or Cortex-M) including hardware design and firmware development
  • Circuit card design experience using Altium Designer including multi-layer PCB design, signal integrity, and EMI/EMC considerations
  • Extensive FPGA programming experience (Xilinx, Intel/Altera, or Lattice) with HDL coding (VHDL or Verilog)
  • Strong background in embedded system power optimization techniques and battery management
  • Proficiency with serial communication protocols: I2C, USB, RS-232, RS-485, and SPI
  • Experience developing embedded software on Linux platforms (RedHat Enterprise Linux Edge and/or Ubuntu)
  • U.S. citizenship with ability to obtain a DoD security clearance
  • Willing and able to work on-site in San Antonio, TX

Desired:
  • Experience with avionics systems, aerospace applications, and U.S. Air Force programs
  • Automated Test Equipment (ATE) or Test Program Set (TPS) development experience
  • Familiarity with MIL-STD-1760 (aircraft/store electrical interconnection) and/or MIL-STD-1553 (data bus) armament protocols
  • Development experience in accordance with MIL-PRF-28800, MIL-STD-810, and MIL-STD-461
  • Experience with real-time operating systems and edge computing technologies
  • Product development through production in accordance with AS9100 or ISO 9001 quality standards
  • Experience with Python, C/C++, or scripting languages for test automation
  • RedHat certification (RHCE or RHCSA)

What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$85,800 - $180,200
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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