At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at https://www.jnj.com **Job Function:** R&D Product Development **Job Sub** **Function:** R&D Mechanical Engineering **Job Category:** Scientific/Technology **All Job Posting Locations:** Danvers, Massachusetts, United States of America **Job Description:** Johnson & Johnson is currently seeking a Product Development Engineer II to join our Heart Recovery team located in Danvers, MA. Fueled by innovation at the intersection of biology and technology, we’re developing the next generation of smarter, less invasive, more personalized treatments. Are you passionate about improving and expanding the possibilities of Cardiovascular? Ready to join a team that’s reimagining how we heal? Our Cardiovascular team develops leading solutions for heart recovery, electrophysiology, and stroke. You will join a proud heritage of continually elevating standards of care for stroke, heart failure and atrial fibrillation (AFib) patients. Your unique talents will help patients on their journey to wellness. Learn more at https://www.jnj.com/medtech **Key Responsibilities** + Design, development, and testing of advanced optical sensing systems and components, including fiber optics, interferometric sensors, and light-based diagnostic tools + System-level prototypes that integrate mechanical, electrical, optical, and embedded subsystems + Guide PCB design and embedded hardware development to support novel optical platforms + Plan and execute lab experiments to evaluate sensor performance, optimize signal quality, and troubleshoot noise or cross-talk + Collaborate with software, systems, and electrical engineers to support signal processing, calibration, and system integration + Drive the creation of detailed documentation including design inputs, test plans, verification protocols, and technical reports in compliance with FDA guidance + Present design updates, feasibility findings, and risk assessments to technical leadership and cross-functional teams + Contribute to IP generation and technical strategy for future product platforms **Required Qualifications** + BS in Mechanical Engineering, Optical Engineering, or a related discipline with a strong concentration in optical sensing or optomechanical systems. Advanced Degree preferred + 2+ years of relevant R&D or product development experience (industry or postdoctoral) beyond BS, ideally in medical devices or high-reliability embedded systems + Proficiency in optical system modeling and simulation (e.g., Zemax, FRED, or Code V) and hands-on lab experience with fiber optics, interferometry, or optical sensors + Familiarity with embedded systems, PCB design tools (e.g., Altium), and signal chain integration + Strong problem-solving skills, with the ability to work across disciplines and guide junior team members + Excellent communication and technical documentation skills **Preferred Qualifications** + Experience with regulated development in the medical device industry (Class II or III devices) + Knowledge of biomedical signal acquisition and optical-electrical signal processing + Familiarity with SolidWorks or other 3D CAD for optomechanical integration + Proficiency with prototyping tools (3D printing, machining) and lab equipment such as power meters, light sources, spectrometers, and oscilloscopes + Programming skills in Python, C/C++, or MATLAB for sensor data acquisition and analysis + Demonstrated history of innovation, publications, or patent contributions Johnson & Johnson is an Affirmative Action and Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Johnson & Johnson is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, protected veteran status or other characteristics protected by federal, state or local law. We actively seek qualified candidates who are protected veterans and individuals with disabilities as defined under VEVRAA and Section 503 of the Rehabilitation Act. Johnson & Johnson is committed to providing an interview process that is inclusive of our applicants’ needs. If you are an individual with a disability and would like to request an accommodation, please contact us via https://www.jnj.com/contact-us/careers or contact AskGS to be directed to your accommodation resource. For more information on how we support the whole health of our employees throughout their wellness, career and life journey, please visit www.careers.jnj.com . The anticipated base pay range for this position is $89,000 to $143,750. The Company maintains highly competitive, performance-based compensation programs. Under current guidelines, this position is eligible for an annual performance bonus in accordance with the terms of the applicable plan. The annual performance bonus is a cash bonus intended to provide an incentive to achieve annual targeted results by rewarding for individual and the corporation’s performance over a calendar/performance year. Bonuses are awarded at the Company’s discretion on an individual basis. Employees and/or eligible dependents may be eligible to participate in the following Company sponsored employee benefit programs: medical, dental, vision, life insurance, short- and long-term disability, business accident insurance, and group legal insurance. Employees may be eligible to participate in the Company’s consolidated retirement plan (pension) and savings plan (401k).This position is eligible to participate in the Company’s long-term incentive program. Employees are eligible for the following time off benefits: Vacation – up to 120 hours per calendar year. Sick time - up to 40 hours per calendar year; for employees who reside in the State of Washington – up to 56 hours per calendar year. Holiday pay, including Floating Holidays – up to 13 days per calendar year. Work, Personal and Family Time - up to 40 hours per calendar year. For additional general information on Company benefits, please go to: -  https://www.careers.jnj.com/employee-benefits This job posting is anticipated to close on August 8, 2025. The Company may however extend this time-period, in which case the posting will remain available on https://www.careers.jnj.com to accept additional applications. \#LI-Onsite