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Freelance Embedded Systems Engineer Jobs in Missouri

CACI

Mid Systems Engineer

Saint Louis, MO · On-site

$69K - $141K/yr

Mid Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to ... Work on-site at a Government facility, embedded with mission stakeholders and delivery teams. Take ...

Boeing

Software Systems Engineer

Hazelwood, MO

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Software Systems Engineer

Hazelwood, MO · On-site

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Software Systems Engineer

Hazelwood, MO · On-site

$163K - $193K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

Boeing

Software Systems Engineer

Hazelwood, MO · On-site

$159K - $189K/yr

The successful candidate for the role of Software Systems Engineer will play a crucial role in the design, development, testing, and maintenance of non-embedded software throughout the end-to-end ...

EndoSec LLC

FPGA Engineer

Kansas City, MO · On-site

$122K - $157K/yr

Apply Now RTL, C/C++, Python, VHDL, Verilog, Tcl, cryptography, hardware, embedded software, System ... S. Government Security Clearance FPGA Engineer The EndoSec FPGA Engineer is responsible for the ...

Leonardo DRS

Controls Systems Engineer II

Bridgeton, MO

$79K - $103K/yr

Job Summary Leonardo DRS Land Systems is seeking a full time Controls Systems Engineer responsible ... Support real-time/embedded implementation of control algorithms and collaborate across software ...

Leonardo DRS

Controls Systems Engineer II

Bridgeton, MO · On-site

$79K - $103K/yr

Job Summary Leonardo DRS Land Systems is seeking a full time Controls Systems Engineer responsible ... Support real-time/embedded implementation of control algorithms and collaborate across software ...

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Freelance Embedded Systems Engineer information

What is a freelance embedded systems engineer?

Freelance embedded systems engineers are independent professionals who design, develop, and maintain embedded systems for various clients on a project basis. These engineers specialize in integrating hardware and software to create systems that perform dedicated functions within larger devices, such as automotive electronics, medical devices, or consumer electronics. Working as freelancers, they may handle tasks such as firmware development, hardware design, debugging, and system integration, often collaborating remotely with clients from different industries. Their flexible work style allows them to take on diverse projects and stay updated with the latest embedded technologies.

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

To thrive as a Freelance Embedded Systems Engineer, you need expertise in embedded C/C++ programming, microcontroller architecture, and electronics fundamentals, often supported by a degree in electrical engineering or computer science. Familiarity with tools such as oscilloscopes, logic analyzers, version control (e.g., Git), and platforms like ARM, Arduino, or RTOS, as well as certifications like Certified Embedded Systems Engineer (CESE), is highly valuable. Strong problem-solving abilities, effective communication, and the ability to manage projects independently are standout soft skills for this role. These skills are essential to deliver reliable, efficient solutions tailored to client needs while maintaining professionalism and adaptability in dynamic, project-based environments.

What are some common challenges faced by freelance embedded systems engineers, and how can they be addressed?

Freelance embedded systems engineers often encounter challenges such as managing multiple projects with varying requirements, keeping up with rapidly evolving hardware and software technologies, and ensuring effective communication with remote clients. To address these issues, it's important to maintain organized project management practices, invest time in continuous learning, and set clear expectations with clients regarding deliverables and timelines. Building a strong professional network and leveraging online collaboration tools can also enhance efficiency and client satisfaction.

What are the most commonly searched types of Embedded Systems Engineer jobs in Missouri?

The most popular types of Embedded Systems Engineer jobs in Missouri are:

What are popular job titles related to Freelance Embedded Systems Engineer jobs in Missouri?

For Freelance Embedded Systems Engineer jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Freelance Embedded Systems Engineer jobs in Missouri look for?

The top searched job categories for Freelance Embedded Systems Engineer jobs in Missouri are:

What cities in Missouri are hiring for Freelance Embedded Systems Engineer jobs?

Cities in Missouri with the most Freelance Embedded Systems Engineer job openings:

Freelance Embedded Systems Engineer jobs near you

Embedded Software Engineer, Electronics Engineering

Nidec Corporation

Saint Louis, MO • On-site

$127K - $168K/yr

Full-time

Re-posted 20 days ago

Nidec rating

7.3

Company rating: 7.3 out of 10

Based on 52 frontline employees who took The Breakroom Quiz

314th of 496 rated machine equipment manufacturers

Job description

We begin with dreams. Dreams drive our motivation. Dreams are our future. The world's dreams, people's dreams, our dreams. Our passion creates ideas that make dreams come alive. Technology and products that were only dreams become reality.
All for dreams. Dreams challenge and the Nidec-Group will continue to meet the challenge. For the world's and people's tomorrows; the world's first, the world's best technologies and products; we will continue our part in creating a better society.
Job Summary
Serve as the technical authority for embedded motor control software, controls algorithms, and system behavior within C&I motor control and drive products.
Lead the architecture, design, implementation, validation, and release of embedded motor control software, from concept through product launch, ensuring performance, real-time reliability, stability, safety, and compliance with applicable standards.
Operate with a high degree of autonomy, providing technical leadership, design direction, and mentoring other engineers while partnering closely with power electronics, mechanical, manufacturing, quality, and supplier teams
Job Description
What it does / How to / Aiming at Results
  • Develop and implement motor control algorithms such as Field Oriented Control (FOC), six-step / trapezoidal control, sensorless back-EMF methods, observers and estimators, and torque, speed, and position control loops (PID, adaptive control)
  • Develop firmware on embedded platforms, including PWM generation, ADC synchronization, and real-time signal processing
  • Develop control methods to improve efficiency and performance, including loss reduction and switching strategies
  • Own motor control system performance from concept through validation, including requirements interpretation, design trade-offs, and issue resolution
  • Develop and maintain MATLAB/Simulink models to simulate motor behavior, control design, and system stability
  • Work closely with power electronics and hardware teams
  • Interface with current and voltage sensing circuits, and validate signal scaling, offsets, and calibration
  • Debug system-level issues across firmware and hardware, including control performance, sensing, and power stage behavior
  • Implement communication interfaces such as Modbus, BACnet, UART, SPI, I2C, and wireless protocols (e.g., Bluetooth, Wi-Fi)
  • Implement protection features such as overcurrent, overvoltage/undervoltage, and stall/lock detection
  • Ensure compliance with safety requirements (e.g., Class B software per UL 60730)
  • Write design documentation (control strategies, architecture), test plans, and validation reports
  • Establish and lead processes for managing embedded motor control software across development, validation, and production, ensuring controlled changes, consistent configurations, and repeatable software releases
  • Define and implement structured verification processes, including black box and white box testing, standardized validation methods, and formal peer reviews to ensure performance, stability, and quality

DIMENSIONS
Geographic Scope: United States - Global Impact
Product Scope: Motor-mounted electronics, embedded controls and human-machine interfaces.
Business Impact: Direct influence on NPD time to market, product performance, compliance, quality & cost.
KPI
  • Electronics NPD OTD >80% for FY26
  • Electronics VAVE cost saving results
  • Product reliability, robustness and compliance metrics
  • Electronics components obsolescence risk mitigation
  • Mean time to resolution for electronics issues
  • Manufacturing yield and scrap related to electronics NPD

REQUIREMENTS
Education
Bachelor's degree in Electrical Engineering, Electronics Engineering, or related field.
Master's degree preferred.
Experience
  • 10+ years of experience in embedded systems, control systems, or electronics engineering
  • 7+ years of experience in motor control systems for industrial equipment or drives applications
  • Proven experience developing and implementing motor control algorithms (e.g., FOC, PID control, observers, sensorless methods) on embedded platforms
  • Strong hands-on experience in real-time embedded firmware development (C/C++) for control applications
  • Experience designing and optimizing control loops (current, speed, position) in real-world systems
  • Experience working with power electronics systems (inverters, motor drives) and understanding their interaction with control algorithms
  • Practical experience with current and voltage sensing systems, including signal conditioning, scaling, and calibration in control applications
  • Experience debugging system-level issues involving firmware, control behavior, and hardware interaction
  • Experience with MATLAB/Simulink or similar tools for control design, modeling, and validation
  • Experience implementing or integrating communication protocols, including wired (UART, SPI, I2C, Modbus, BACnet) and wireless (Bluetooth, Wi-Fi)
  • Experience developing or supporting safety-critical embedded software (e.g., UL 60730 or similar standards)
  • Participation in full product lifecycle development, including prototyping, validation, and production support
  • Participation in product industrialization activities, including prototype builds, pilot runs, and production ramp-up support

Skills
  • Clear written communication skills for technical documentation, design rationale, and engineering review.
  • Ability to communicate complex technical concepts clearly and concisely across diverse audiences, including non-technical stakeholders
  • Confidence to challenge assumptions and decisions constructively using data, experience, and engineering judgment
  • Strong time-management skills to balance deep technical work with cross-functional engagement

CUSTOMERS
Internal: Manufacturing, Quality, Regulatory, Supply Chain, Sales/Marketing, Service
External: Electronics suppliers, contract manufacturers, certification bodies.
LANGUAGES
Fluent English
Additional Job Details
Equal Employment Opportunity and Affirmative Action at Nidec
Nidec is an Equal Employment Opportunity (EEO) and Affirmative Action Employer encouraging diversity in the workplace. All qualified applicants receive consideration for employment without regard to their age, gender, gender identity, sexual orientation, race, color, genetic information, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by law. For more information regarding your (EEO) rights as an applicant, please visit the following website: http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf
Work Shift Schedule
No Soliciting
Nidec will not accept unsolicited resumes from individual recruiters or third party recruiting agencies in response to Nidec job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers. Pre-approval from the Nidec Talent Acquisition team is required before any external candidate can be submitted and such candidate must be submitted to the Nidec Talent Acquisition team.

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