R&D Mechanical Engineer - JJMT Electrophysiology

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.

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As guided by Our Credo, Johnson & Johnson is responsible to our employees who work with us throughout the world. We provide an inclusive work environment where each person is considered as an individual. At Johnson & Johnson, we respect the diversity and dignity of our employees and recognize their merit.

Job Function: R&D Product Development

Job Sub Function: R&D Electrical/Mechatronic Engineering

Job Category: Scientific/Technology

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

Job Description:

Johnson & Johnson Med Tech - Electrophysiology division is currently seeking a R&D Mechanical Engineer. This position is located in Irvine, California.

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

This individual will be responsible for the design and development of next-generation electrophysiology (EP) cable and connector systems, supporting the advancement of Pulsed Field Ablation (PFA) catheter technologies. The role involves working on high-density, mixed-signal connectors in constrained mechanical spaces, requiring innovative design thinking and strong collaboration across cross-functional teams.

• Design and develop state-of-the-art cable connectors for EP catheters, capable of carrying multiple signal types (e.g., RF, sensing, stimulation, thermocouple).
• Create detailed Solid Works models and engineering drawings for cables and connectors.
• Collaborate with electrical, systems, and manufacturing teams from concept through production.
• Participate in and lead design reviews, brainstorming sessions, and technical discussions.
• Work closely with suppliers to develop prototypes, manage DFM feedback, and ensure manufacturability.
• Develop and execute test plans and qualification protocols for new cable and connector designs.
• Design and build test fixtures to validate mechanical and electrical performance.
• Support field issues, root cause analysis, and implement design improvements.
• Drive cost reduction and quality improvement initiatives with suppliers.
• Ensure all documentation (e.g., drawings, BOMs, test reports) is complete and compliant with internal standards and regulatory requirements.

• Bachelor’s degree in Mechanical Engineering (required).
• Proficiency in Solid Works for 3D modeling and 2D drafting.
• 3+ years of experience in mechanical design, preferably in medical devices or high-reliability connectors.
• Experience with cable assemblies, connector design, and electromechanical systems.
• Familiarity with GT, DFM/DFA, and tolerance stack-up analysis.
• Strong problem-solving skills and ability to work…