Embedded Firmware Engineer

• Pay Range Includes Base; Commissions; Bonus : No
• Salary : $120k USD Annually - 140k USD Annually

Company Overview:

SCRAM Systems is a leading provider of alcohol and location monitoring hardware, software, and mobile apps, including the SCRAM Continuous Alcohol Monitoring ® (SCRAM CAM ® )bracelet, the LifeSafer ® L250 Ignition Interlock device, and LifeSafer Intelligence Speed Assistance. We provide an integrated approach to supporting our customers by offering solutionsspecific to court and agency needs in the community corrections industry throughout all phases of client management. As a company, we are committed to continuing our tradition of re-engineering operations to streamline processes, enhance productivity, and improve client outcomes through constant innovation. Our purpose is to change lives, reunite families, and make our communities safer through advanced technology and world-class service.

Job Description

Job Summary:

We are seeking a highly skilled Embedded Firmware Engineer to design, develop, and optimize low-level software for advanced embedded systems. This role involves working across the full firmware stack—from bare-metal development to RTOS-based wireless systems—while interfacing closely with hardware to deliver high-performance, low-power solutions. The ideal candidate has strong experience in embedded Linux, Zephyr, device drivers, and hardware/firmware integration.

Duties/Responsibilities:

• Design, develop, and maintain embedded firmware for microcontrollers and SoCs
• Develop and debug firmware on bare-metal and RTOS platforms (e.g., Zephyr)
• Work with embedded Linux systems, including kernel configuration and user-space applications
• Implement and optimize hardware drivers (I2C, SPI, UART, GPIO, ADC/DAC, PCIe, etc.)
• Develop and validate hardware/firmware interfaces and bring-up new hardware platforms
• Design and implement low-power management strategies
• Collaborate with hardware, systems, and software teams
• Perform board bring-up, debugging, and system validation
• Troubleshoot system-level issues
• Contribute to architecture decisions and documentation

Experience and Skills

Skills/Abilities:

• Experience with low-power embedded system design preferred
• Familiarity with bootloaders, secure firmware development, and over-the-air (OTA) update processes preferred
• Experience with embedded Linux build systems such as Yocto and/or Buildroot preferred
• Proficiency in Python or other scripting languages for automation and development support preferred
• Knowledge of wireless communication technologies, including BLE, Wi‑Fi, and Cellular connectivity preferred
• Understanding of applicable safety and cybersecurity standards preferred
• Demonstrated strong analytical and problem‑solving skills
• Ability to collaborate effectively within cross-functional teams
• High level of attention to detail and commitment to quality
• Self‑motivated with the ability to manage priorities independently
• Strong verbal and written communication skills

Education and Experience:

• Bachelor’s or Master’s degree in relevant field
• 3+ years of experience in embedded firmware development
• Strong proficiency in C/C++
• Experience with embedded Linux, Zephyr RTOS, and bare‑metal development
• Experience writing hardware device drivers
• Understanding of microcontroller and processor architectures
• Familiarity with SPI, I2C, UART, CAN, USB, Ethernet
• Experience with Git and debugging tools
• Experience in design and optimizing of low-level C/C++ embedded software for GNSS/GPS tracking systems

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

• Retirement Savings:
  • 401(k): We offer a 401(k)-retirement savings plan to help you plan for your future financial security.
  • 401(k) Matching: SCRAM provides a 100% match for the first 3% contributed and another 50% match for the next 2% contributed, amplifying your savings potential.
• Health and Wellness:
  • Health Insurance: We provide comprehensive health insurance coverage to safeguard your health and that of your family.
  • Dental Insurance: Our dental insurance plan ensures access to quality dental care for you and your dependents.
  • Vision Insurance: Take care of your vision health with our vision insurance coverage.
  • Health Savings Account (HSA): Our HSA option allows you to save pre‑tax dollars for medical expenses, providing flexibility and savings opportunities. We strongly valuesaving for your wellness, so the company provides an employer contribution towards your HSA annually.
  • Flexible Spending Account (FSA): With our FSA, you can set aside pre‑tax dollars to cover eligible medical expenses not covered by your health insurance plan. You canalso save pre-tax dollars to help cover the cost of child care with our Dependent Care FSA.
• Disability Insurance: We offer company paid short and long term disability insurance to provide financial protection in the event of injury or illness that prevents you from working.
• Life Insurance: Ensure the financial security of your loved ones with our company paid life insurance coverage at 1.5x your annual salary. Want more coverage – supplementallife is also available.
• Work-Life Balance:
  • Paid Time Off: We understand the importance of work‑life balance. That's why we provide generous paid time off, allowing you to recharge and enjoy life outside of work.
  • Paid Sick Time: Your health matters to us. We offer paid sick time to support you during times of illness.
  • Employee Assistance Program (EAP): Our EAP offers free confidential counseling and support services to help you navigate personal or professional challenges.
• Referral Program: We believe in the power of teamwork and collaboration. Our referral program rewards you for referring talented individuals to join our team.
• Tuition Reimbursement Program: We support the professional growth of all employees, but understand that going back to school is expensive. We offer tuitionreimbursement up to the IRS limit annually to help our employees flourish.

At SCRAM, we are committed to empowering our employees to thrive both personally and professionally. Join us and take advantage of our comprehensive benefits package as you embarkon a rewarding career journey with us.

IMPORTANT: APPLICANTS PLEASE READ Qualified applicants are considered for employment, and employees are treated during employment without regard to race, color, religion, national origin, citizenship, age, sex, marital status, ancestry, physical or mental disability, veteran status or sexual orientation. Solely to help us comply with federal and state Equal Opportunity record keeping, reporting, and other legal requirements, we request that you complete this data information questionnaire.

PLEASE NOTE: Refusal to complete this information will not subject any applicant or employee to adverse treatment. The information that you provide will be recorded and maintained in a confidential file, separate from all other records. This information will not be used in consideration for your employment.

Veteran

This employer may be a Government contractor subject to the Vietnam Era Veterans' Readjustment Assistance Act of 1974, as amended by the Jobs for Veterans Act of 2002, 38 U.S.C. 4212 (VEVRAA), which requires Government contractors to take affirmative action to employ and advance in employment:

• Disabled veterans;
• Recently separated veterans;
• Active duty wartime or campaign badge veterans;
• Armed Forces service medal veterans.

These classifications are defined as follows:

• A "disabled veteran" is one of the following:
• A veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs;
• A person who was discharged or released from active duty because of a service‑connected disability.
• A "recently separated veteran" means any veteran during the three‑year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
• An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
• An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Protected veterans may have additional rights under USERRA - the Uniformed Services Employment and Reemployment Rights Act. In particular, if you were absent from employment in order to perform service in the uniformed service, you may be entitled to be reemployed by your employer in the position you would have obtained with reasonable certainty if not for the absence due to service.

Protected veterans may have additional rights under USERRA - the Uniformed Services Employment and Reemployment Rights Act. For more information, call the U.S. Department of Labor's Veterans Employment and Training Service (VETS), toll‑free, at 1‑866‑4‑USA‑DOL.

• I identify as one or more of the classifications of protected Veteran listed above
• I am not a protected Veteran

Male

• Female
• I Decline To Answer
• Hispanic or Latino (Persons of Mexican, Puerto Rican, Cuban, South or Central America, or other Spanish culture or origin, regardless of race)
• White or Caucasian (Not Hispanic or Latino) - Persons having origins in any of the original peoples of Europe, the Middle East or North Africa.
• Black or African American (Not Hispanic or Latino) - Persons having origins in any of the black racial groups of Africa.
• (Not Hispanic or Latino) - Persons having origins in any of the original people of North and South America and maintain cultural identification through tribal affiliation or community recognition.
• Asian (Not Hispanic or Latino) - Persons having origins in the Far East, Southeast Asia or the Indian subcontinent including Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand and Vietnam.
• Native Hawaiian or Other Pacific Islander (Not Hispanic or Latino) - Persons having origins in Hawaii, Guam, Samoa or other Pacific Islands.
• Two or More Races (Not Hispanic or Latino) - All persons who identify with more than one of the above five race categories.
• I Decline
• Voluntary Self‑Identification of Disability

Form CC-305 OMB Control Number 1250-0005

Page 1 of 1 Expires 04/30/2026

Why are you being asked to complete this form? We may be a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress toward this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor's Office of Federal Contract Compliance Programs (OFCCP) website at

How do you know if you have a disability? A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability.

Disabilities include, but are not limited to:

• Alcohol or other substance use disorder (not currently using drugs illegally)
• Blind or low vision
• Cancer (past or present)
• Cardiovascular or heart disease
• Celiac disease
• Cerebral palsy
• Deaf or hard of hearing
• Diabetes
• Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
• Epilepsy or other seizure disorder
• Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
• Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
• Missing limbs or partially missing limbs
• Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
• Nervous system condition, for example, migraine headaches, Parkinson's disease, multiple sclerosis (MS)
• Neurodivergence, for example, attention‑deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
• Partial or complete paralysis (any cause)
• Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
• Yes, I Have A Disability, Or Have A History/Record Of Having A Disability
• No, I Don't Have A Disability, Or A History/Record Of Having A Disability
• I don't wish to answer