Principal Mechanical Engineer - JJMT Electrophysiology

This job is with Johnson & Johnson, an inclusive employer and a member of my Gwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

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 Med Tech, 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

Job Function:
Supply Chain Engineering

Job Sub     Function:
Mechanical Engineering

Job Category:
Scientific/Technology

All Job Posting Locations:
Irvine, California, United States of America

Job Description:

Our J&J Med Tech Electrophysiology Engineering team is currently recruiting for a    Principal Mechanical Engineer . The position is located in Irvine, California. This position will report on-site 5 days a week.

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 Med Tech, 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   

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

Job Summary:

The Principal Engineer plays a critical role in advancing catheter development within the    Haifa Tech Incubator (HTI)    by driving projects from concept to prototype, validating designs, and enabling reliable transitioning toward development and early production. This role emphasizes hands-on technical leadership, rapid problem solving, and mentorship of junior engineers, with regular collaboration across internal and external research partners.
The Principal Engineer contributes to the incubator's ability to deliver clinically relevant devices while supporting process improvements and knowledge transfer to later-stage development.
This position offers the opportunity to shape the future of medical devices by supporting high-risk, high-reward innovations that align with our long-term strategic goals of market leadership and patient impact. The Principal Engineer will operate with entrepreneurial agility, fostering a culture of rapid experimentation, iterative development, and scientific excellence.

Job Responsibilities:

Technology & Project Ownership:
Under limited supervision, lead projects from initial concept through prototype development, ensuring alignment with clinical needs and regulatory pathways.
Drive technical decisions, manage milestones, and de-risk designs to enable downstream development activities.
Prototype Development & Validation:
Architect the creation of innovative prototypes, tools, and fixtures for pre-clinical testing. Design and implement robust validation protocols, ensuring safety, regulatory readiness, and manufacturability criteria.
Design and implement robust validation protocols, ensuring safety, regulatory readiness, and manufacturability criteria.

Cross-Functional Collaboration:

Collaborate with internal and external partners to facilitate efficient technology transfer on assigned work streams.
Knowledge Transfer & Process Support:
Suppor…