Firmware Engineer

Actalent; Town of Brookfield (WI); Hybrid; USD 90,000 - 110,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) retirement

Paid time off

Job summary

Actalent is seeking an Embedded Firmware Engineer in Brookfield, WI for a contract-to-hire role. You will design, implement, test, and troubleshoot firmware for Bluetooth/BLE, WiFi, and cellular products, with emphasis on STM microcontrollers in baremetal environments.

You will own end-to-end firmware development, participate in architecture decisions, and contribute to production-ready code while collaborating across the lifecycle from design to post-launch support.

Qualifications

• Experience designing embedded firmware in hands-on role.
• Strong C++ in embedded/baremetal environments.
• Proven microcontroller-based firmware development, preferably STM.
• Experience without large OS reliance.
• Ability to implement production firmware components.
• Hands-on firmware testing, validation, and debugging.
• Experience taking products from development to launch.
• Ability to design and validate end-to-end firmware.

Responsibilities

• Design, develop, and implement embedded firmware for new and existing products using C++ in baremetal environments.
• Contribute to firmware architecture and production-quality code.
• Develop firmware for Bluetooth/BLE, WiFi, and cellular connected products.
• Work with STM devices to build reliable embedded solutions.
• Translate requirements into maintainable firmware functionality.
• Test and validate own firmware for reliability and performance.
• Debug firmware and embedded system issues during development and validation.
• Participate in full product lifecycle from design to production support.
• Address post-launch bug fixes to improve performance.
• Engage in design and code reviews to improve quality and reuse.

Skills

Embedded firmware

C++ (embedded)

STM microcontrollers

Baremetal development

Firmware testing

Debugging

Product lifecycle

Job description

Job Title: Firmware Engineer

Job Description

We are seeking an Embedded Firmware Engineer to support new product development and next-generation connected product platforms. In this hands-on role, you design, implement, test, and troubleshoot embedded firmware for products that incorporate Bluetooth/BLE, WiFi, and cellular connectivity, including devices that provide location and connectivity capabilities for fielddeployed products. You contribute across the complete embedded product lifecycle, from architecture and coding through validation, launch, and postlaunch support.

Responsibilities

• Design, develop, and implement embedded firmware for new and existing products using C++ in baremetal and microcontrollerbased environments.
• Contribute to firmware architecture and make significant handson contributions to productionquality code.
• Develop firmware for connected products that utilize Bluetooth/BLE, WiFi, and cellular technologies to enable robust communication and location capabilities.
• Work extensively with microcontrollers, with a strong focus on STM/STMicroelectronics devices, to build reliable embedded solutions.
• Translate system and product requirements into clear, maintainable embedded firmware functionality.
• Independently test and validate your own firmware, ensuring functionality, reliability, and performance meet product requirements.
• Debug firmware and embedded system issues throughout development, integration, and product validation phases.
• Participate in the complete product development lifecycle, including design, implementation, integration, validation, product launch, and production bug fixes.
• Troubleshoot issues discovered after launch and implement effective postlaunch bug fixes to improve product performance and stability.
• Engage in design and code reviews to improve code quality and support both new product development and reusable, platformlevel firmware components.

Essential Skills

• Professional embedded systems or firmware development experience in a handson engineering role.
• Strong C++ programming skills specifically in embedded and baremetal environments.
• Proven experience developing microcontrollerbased firmware, preferably with STM/STMicroelectronics microcontrollers.
• Experience developing baremetal embedded firmware without reliance on large operating systems.
• Demonstrated ability to personally implement substantial portions of production firmware code.
• Handson experience testing, validating, and debugging your own firmware to ensure high reliability.
• Experience taking embedded products from initial development through product launch.
• Experience troubleshooting and implementing postlaunch bug fixes for embedded products.
• Ability to design, test, and validate firmware endtoend, owning the quality of your work.

Additional Skills & Qualifications

• Experience developing firmware for connected products using Bluetooth/BLE, WiFi, and cellular technologies.
• Strong working with STM/STMicroelectronicsbased products, including full design, test, and validation cycles.
• Comfort working in both baremetal and MCUbased embedded environments.
• Experience participating in design and code reviews to enhance code quality and maintainability.
• building reusable and platformlevel firmware components that can support multiple products.

Work Environment

You work in a handson engineering environment focused on embedded systems and connected products. Daytoday activities involve coding in C++ for baremetal and microcontrollerbased platforms, working closely with STM/STMicroelectronics hardware, and integrating Bluetooth/BLE, WiFi, and cellular connectivity into fielddeployed devices. The role emphasizes full lifecycle ownership, from design and architecture through testing, validation, launch, and ongoing production support, in a setting that values robust engineering practices, thorough debugging, and continuous improvement of firmware quality.

Job Type & Location

This is a Contract to Hire position based out of Brookfield, WI.

Pay and Benefits

The pay range for this position is $65.00 - $80.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract to Hire position based out of Brookfield, WI.

Application Deadline

This position is anticipated to close on Nov 5, 2026.

Workplace Type

This is a hybrid position in Brookfield,WI.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. We are proud to be an Engineering News-Record (ENR) Top 500 Design Firm for our engineering design services and a ClearlyRated Best of Staffing® winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email [e-mail] for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.