Senior Electrical Engineer

NIRSense Inc

$100K — $130K *
Healthcare
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in electrical engineering, focused on medical devices or biomedical sensing.
  • Proven track record in leading complex medical device hardware projects from concept to validation.
  • Hands-on expertise in designing miniaturized systems, including PCBs and battery systems.
  • Familiarity with mixed-signal circuit design for physiological sensing and low-noise data systems.
  • Proficient in PCB design tools, such as Altium Designer, especially for space-constrained wearables.
  • Experience managing vendor relations and PCB fabrication processes.
  • Bachelor's degree in Electrical or Biomedical Engineering or related field.

Responsibilities

  • Design low-power architectures and battery circuits for wearable devices.
  • Ensure designs meet safety and EMC standards, supporting necessary testing procedures.
  • Lead design reviews with cross-functional teams to align engineering practices.
  • Manage PCB fabrication and sourcing relationships, focusing on quality and risk mitigation.
  • Oversee design testing and validation processes for production optimization.
  • Prepare and review technical documentation to support regulatory submissions.
  • Collaborate with the R&D Manager in project oversight.

Benefits

  • Health, dental, and vision insurance options.
  • 401(k) plan with company matching contributions.
  • Flexible work hours and remote work potential.
  • Opportunities for professional development and continuing education.
  • Supportive work environment fostering innovation and collaboration.
Full Job Description
Minimum Qualifications:
  • 5+ years of experience in electrical engineering, with significant focus on medical devices or biomedical sensing systems.
  • Demonstrated ability to independently lead and deliver complex medical device hardware development projects from concept through design verification and validation.
  • Deep hands-on expertise with design and integration of electrical components of miniaturized medical device systems such as PCBs, PCB components, batteries, and light-emitting and detecting systems.
  • Expertise in mixed-signal circuit design for physiological sensing, including signal generators, amplifiers, filters, ADCs, and low-noise data acquisition systems.
  • Experience designing low-power architectures and battery management systems for body-worn medical devices.
  • Experience with EMC/EMI design practices and electrical safety standards (IEC 60601-1, IEC 60601-1-2).
  • Experience leading formal design reviews and presenting technical analyses to cross-functional stakeholders in a design-controlled environment.
  • Proficiency in PCB design tools (Altium Designer preferred), including rigid, flex, and rigid-flex designs for space-constrained wearable form factors.
  • Strong technical writing skills, with experience authoring design documentation for regulated environments.
  • Experience managing PCB fabricator and contract manufacturer relationships, including vendor qualification and supply chain risk mitigation.
  • B.S. in Electrical or Biomedical Engineering or a related field.

Preferred Qualifications:
  • Knowledge of biosensing and electrical stimulation technologies and proficiency in hardware implementations of these technologies.
  • Experience with optoelectronic circuit design, including LED drivers, photodiode front-ends, and transimpedance amplifiers (TIAs).
  • Experience with mechanical-electrical integration for miniaturized wearable enclosures and collaboration with mechanical engineering teams.
  • Familiarity with C/C++ and embedded systems integration with BLE-enabled microcontrollers (e.g., Nordic nRF series) for wireless physiological data streaming.
  • Experience directing and reviewing work from external PCB layout and design contractors.
  • Experience designing medical wearable hardware for manufacturability (DFM) and testability (DFT), including development of test fixtures and validation systems.
  • Experience with design verification and validation (V&V) testing in a regulated medical device environment.
  • Experience supporting FDA regulatory submissions (e.g., 510(k), de novo) and familiarity with design controls under 21 CFR Part 820 or ISO 13485.
  • Experience with hardware FMEA and risk management per ISO 14971.

Job Responsibilities:
  • Design low-power architectures, battery charging circuits, and power budgets for portable and wearable device platforms.
  • Design for safety and electromagnetic compatibility (EMC/EMI), conduct pre-compliance testing, and support formal EMC and electrical safety testing per IEC 60601-1 and IEC 60601-1-2.
  • Drive and lead design reviews with multi-disciplinary stakeholders, establishing rigorous engineering practices and collaborating closely with firmware, mechanical, and software engineers to ensure seamless system integration.
  • Independently manage relationships with PCB fabricators and assemblers; oversee BOM cost, sourcing risk, and component lifecycle to supply finished, high-quality electronics.
  • Lead test fixture design and manufacturing test strategy, from prototype PCB evaluation through design transfer and production yield optimization.
  • Author and review technical reports, maintain schematic libraries and design history files (DHF), and contribute hardware FMEA and risk management files (ISO 14971) to support regulatory submissions (510(k), de novo).
  • Report to the Electrical Engineering R&D Manager.

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