Embedded Software Engineer

Job Description Sr Embedded Software Engineer Collaborate with Innovative 3Mers Around the World Choosing where to start and grow your career has a major impact on your professional and personal life, so it’s equally important you know that the company that you choose to work at, and its leaders, will support and guide you. With a wide variety of people, global locations, technologies and products, 3M is a place where you can collaborate with other curious, creative 3Mers. This position provides an opportunity to transition from other private, public, government or military experience to a 3M career. The Impact You’ll Make in this Role As a Senior Embedded SW Engineer for the Self-Contained Breathing Apparatus (SCBA)/Fire Solutions R&D Team located in Monroe, NC you will make an impact by designing, testing, and sustaining embedded systems. Our designs incorporate microcontrollers, analog circuitry, power distribution/management, displays, batteries, and other components found in portable, rugged, electromechanical products. You’ll work collaboratively with Electrical Engineers, Mechanical Engineers, Manufacturing, Quality, Test and other disciplines as part of a combined integrated cross‑functional team. Responsibilities Design, develop, and maintain embedded firmware for microcontroller‑based systems Leverage advanced AI‑assisted development and analysis tools to enhance firmware design, validation efficiency, and system‑level troubleshooting Implement low‑level drivers, communication protocols, and real‑time control algorithms Optimize firmware for performance, memory usage, power consumption, and reliability Integrate firmware with hardware, sensors, actuators, and external interfaces Develop and execute unit tests, integration tests, and automated validation routines Troubleshoot system‑level issues using oscilloscopes, logic analyzers, debuggers, and diagnostic tools Create and maintain technical documentation, including design specifications and interface definitions Support product planning by estimating development effort, identifying risks, and proposing solutions Your Skills And Expertise Required Qualifications Bachelors degree in engineering or computer science from an accredited university (completed and verified prior to start) Three (3) years of embedded software design in a private, public, government, or military environment Additional Qualifications Experience developing firmware on STM32 MCUs, including configuration and optimization of peripherals such as ADC, DAC, SPI, I2C, UART, DMA, timers, and GPIO Experience implementing and debugging multitasking applications using the Cesium RTOS, including task scheduling, synchronization, and inter‑task communication Experience integrating and optimizing radio technologies such as BLE, LoRa, UWB, and other sub‑GHz or 2.4 GHz protocols Experience collaborating with hardware teams to validate board bring‑up and peripheral functionality on STM32 platforms Experience implementing and maintaining bootloaders, secure firmware update mechanisms, and device provisioning workflows Experience using IAR Embedded Workbench for building, debugging, and performance analysis of embedded applications Experience working within GitHub‑based workflows including branching strategies, PR reviews, issue tracking, and CI pipelines Experience applying DevOps practices for embedded systems, including automated builds, static code analysis, and test automation Experience ensuring high code quality through use of MISRA guidelines, coding standards, static analysis tools, and peer reviews Experience using professional embedded development tools including JTAG/SWD debuggers, logic analyzers, protocol analyzers, and RF test equipment Experience diagnosing and resolving complex system‑level issues involving firmware, hardware interactions, timing, and concurrency Experience maintaining accurate and high‑quality documentation for firmware architecture, APIs, communication interfaces, and design rationale Work location This role follows an on‑site working model, requiring the employee to work at least four days a week at the 3M in Monroe, NC. Travel May include up to 10% domestic/international. Relocation Assistance Is authorized. Legal Authorization Must be legally authorized to work in country of employment without sponsorship for employment visa status (e.g., H1B status). Supporting Your Well‑being 3M offers many programs to help you live your best life – both physically and financially. To ensure competitive pay and benefits, 3M regularly benchmarks with other companies that are comparable in size and scope. Resources for You For more details on what happens before, during and after the interview process, check out the Insights for Candidates page at 3M.com/careers. Compensation Applicable to US Applicants Only: The expected compensation range for this position is $122,292 - $149,468, which includes base pay plus variable incentive pay, if eligible. This range represents a good faith estimate for this position. The specific compensation offered to a candidate may vary based on factors including, but not limited to, the candidate’s relevant knowledge, training, skills, work location, and/or experience. In addition, this position may be eligible for a range of benefits (e.g., Medical, Dental & Vision, Health Savings Accounts, Health Care & Dependent Care Flexible Spending Accounts, Disability Benefits, Life Insurance, Voluntary Benefits, Paid Absences and Retirement Benefits, etc.). Additional information is available at: Posting Date Range Good Faith Posting Date Range 03/31/2026 To 04/30/2026 Or until filled. Corporate Policies and Security Responsibilities of this position include that corporate policies, procedures and security standards are complied with while performing assigned duties. Safety Safety is a core value at 3M. All employees are expected to contribute to a strong Environmental Health and Safety (EHS) culture by following safety policies, identifying hazards, and engaging in continuous improvement. Pay & Benefits Overview EEO Statement 3M does not discriminate in hiring or employment on the basis of race, color, sex, national origin, religion, age, disability, veteran status, or any other characteristic protected by applicable law. #J-18808-Ljbffr