Role Overview: Myant Health is seeking an R&D Electrical Engineer to help design and develop the next generation of connected, textile-enabled medical and health technologies. You will own PCB and analog electrical design for wearable biosignal recording and stimulation products, taking designs from component selection and schematic capture through PCB layout, fabrication, board bring-up, debugging, verification, and integration into complete products. This is a hands-on engineering role at the intersection of analog and mixed-signal electronics, biosignal acquisition, embedded systems, wireless connectivity, textile computing, and medical devices. You will design highly miniaturized, battery-powered electronics that must perform reliably in close proximity to the human body, sensitive analog signals, textile interfaces, and wireless radios. An immediate project involves a wearable electrical-stimulation device, introducing high-voltage design requirements alongside the low-noise analog and low-power constraints typical of wearable medical electronics. You will have the opportunity to work across the full electrical stack, from power architecture and analog front ends to PCB design, embedded bring-up, test automation, and system integration. Firmware is a secondary but meaningful component of the role. You will write bring-up code and scripted tests that demonstrate and validate hardware functionality, working closely with the firmware team and using modern development tools, including LLM-assisted development tools, while continuing to develop your embedded skills. PCB design workload will be cyclical in a product-development environment. Between major design cycles, you will contribute to design verification, test fixtures, prototype assembly, laboratory debugging, documentation, compliance activities, and integration support for mechanical, textile, firmware, and systems engineering teams. Key Responsibilities: Electrical & PCB Design • Design analog and mixed-signal circuits for biosignal recording and stimulation applications. • Develop schematics and high-density PCB layouts using Altium Designer. • Select and source components including SoCs, analog front ends, power-management ICs, sensors, and supporting components. • Apply semiconductor reference designs, datasheets, and application notes appropriately, recognizing when deviations are justified and when they introduce unnecessary risk. • Develop multilayer boards with attention to signal integrity, power integrity, grounding, shielding, thermal considerations, and manufacturability. • Design for miniaturized wearable form factors, including fine-pitch BGA/WLCSP and 0201 components where appropriate. Analog, Power & Signal Integrity • Design and debug low-noise analog signal paths for biosignal acquisition. • Develop filtering, grounding, shielding, and noise-control strategies that achieve defined signal-quality targets. • Design power-tree architectures and perform quiescent-current and power-budget analysis against battery-life requirements. • Design and debug switching power supplies, including buck, boost, and flyback architectures. • Design RF interfaces with appropriate antenna keep-outs, controlled-impedance routing, and matching networks based on vendor recommendations. • Develop and characterize unconventional power and data transmission approaches over minimal textile conductors, including bias-tee architectures, injector/extractor networks, and filtering between power and signal paths. High-Voltage & Stimulation Electronics • Contribute to the design of high-voltage circuitry for body-worn electrical-stimulation applications. • Apply appropriate creepage, clearance, isolation, grounding, and layout practices when integrating high-voltage circuitry with sensitive analog electronics. • Support electrical-stimulation output-stage design, including H-bridge architectures, charge balancing, and patient-safety considerations. • Work within applicable medical-device safety requirements, including relevant portions of the IEC 60601 family of standards. Bring-Up, Firmware & Testing • Perform board bring-up, including soldering, rework, instrumentation, debugging, and hardware troubleshooting. • Write initial embedded C firmware required to bring up and validate new hardware. • Develop scripted hardware tests and test automation in collaboration with the firmware team. • Use laboratory equipment including oscilloscopes, digital multimeters, power supplies, electronic loads, and spectrum-analysis tools. • Validate designs through simulation, bench testing, rapid prototyping, and structured design verification. • Diagnose hardware/software interaction issues and work collaboratively across engineering disciplines to resolve them. Product Development & Manufacturing • Prepare electrical design, manufacturing, assembly, and test documentation. • Drive PCB designs through fabrication and assembly with contract manufacturers. • Participate in design reviews and communicate technical decisions clearly to engineering and cross-functional stakeholders. • Build test fixtures and prototype assemblies to support product development and verification. • Support compliance and verification activities, including applicable IEC and IPC requirements. • Support mechanical, textile, firmware, and systems teams with electrical integration and prototype development. • Contribute to continuous improvement of electrical design processes, documentation, testing, and engineering practices. Qualifications: • Degree in Electrical Engineering, Biomedical Engineering, or a related discipline, or equivalent practical experience. • 3+ years of experience designing and shipping PCBs, with strong analog/mixed-signal experience. Experience with battery-powered products is strongly preferred. • Strong board-level analog fundamentals, including filtering, noise budgets, grounding, shielding, and signal integrity, with demonstrated experience achieving defined noise and power targets in production products or validated prototypes. • Experience with high-density PCB design, including fine-pitch BGA/WLCSP, 0201 components, multilayer stackups, and associated layout constraints, or demonstrated ability to develop these skills quickly. • Experience with switching power-converter design, including buck, boost, or flyback architectures. • Understanding of low-power electronics, including power-tree architecture, quiescent-current budgeting, and component selection against battery-life requirements. • Understanding of RF PCB layout principles, including antenna keep-outs, impedance-controlled routing, and matching-network implementation. • Proficiency with Altium Designer, KiCad, Autodesk Fusion/Eagle, or equivalent PCB design tools. Altium is used at Myant Health. • Experience with SPICE simulation, such as LTspice, TINA, or equivalent. • Sufficient embedded C experience to write and debug hardware bring-up code on 32-bit microcontrollers. Myant Health currently uses nRF platforms. • Comfortable working with standard electronic laboratory equipment, including oscilloscopes, DMMs, power supplies, and basic spectrum-analyzer functionality. • Strong hands-on troubleshooting skills and the ability to move effectively between schematic, PCB, laboratory, firmware, and physical prototype. Nice to Have • Biosignal instrumentation experience, particularly ECG, EMG, EEG, GSR, or similar physiological signals. • Direct high-voltage design experience in the hundreds-of-volts range, including stimulation systems, HV power supplies, or photoflash-class converters. • Electrical-stimulation output-stage experience, including H-bridge drivers, charge balancing, and patient-safety design. • Experience designing flex or rigid-flex PCBs. • Experience combining power and data over shared conductors, including bias tees, PoDL/PoE, phantom power, coaxial bias-tee architectures, or similar approaches. • Experience with signal integrity over lossy, unconventional, or imperfect transmission channels. • Bluetooth Low Energy (BLE) product-development experience. • RTOS experience, particularly Zephyr. • Python experience for test automation and engineering tooling. • Experience developing products for regulated industries, with medical-device experience and IEC 60601 knowledge particularly valuable. • Experience working with textile-based electronics, conductive textiles, wearable sensors, or other body-worn electronics. • Experience taking an electrical design from early prototype through design verification and manufacturing. What You'll Bring You are a hands-on electrical engineer who enjoys solving problems where the textbook answer is not always enough. You are comfortable moving between circuit theory, PCB layout, laboratory debugging, firmware bring-up, and physical prototypes. You understand that building electronics for the human body requires more than making a circuit work on the bench. Noise, power, safety, miniaturization, manufacturability, wireless performance, textile interfaces, and regulatory requirements all have to work together. You are rigorous about engineering fundamentals, curious about new technologies, and comfortable working in a highly collaborative R&D environment where hardware, firmware, software, mechanical, textile, clinical, and product teams must solve problems together. Most importantly, you are excited by the opportunity to apply your electrical-engineering expertise to technology that can measure, understand, and ultimately improve human health.