iRhythm Technologies is hiring a
Senior Optoelectronics Design Engineer II

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Read by 54 job seekers.

San Francisco, CA, US

Boldly innovating to create trusted solutions that detect, predict, and prevent disease.

Discover your power to innovate while making a difference in patients' lives. iRhythm is advancing cardiac care…Join Us Now! 

At iRhythm, we are dedicated, self-motivated, and driven to do the right thing for our patients, clinicians, and coworkers. Our leadership is focused and committed to iRhythm’s employees and the mission of the company. We are better together, embrace change and help one another.  We are Thinking Bigger and Moving Faster.


About This Role

iRhythm is currently seeking a Senior Optoelectronics Design Engineer to join our Product Development team. Engineers at iRhythm work passionately to deliver innovative solutions that improve the quality of healthcare and the patient experience. In this role you will contribute directly to near and long-term commercialization efforts for our next-generation wearable bio-sensors, collaborating alongside a small team of multi-disciplinary engineers experienced in bringing medical devices to market.

You will be the lead optoelectronic design engineer releasing wearable hardware in a regulated medical device industry. Your task will be to integrate photoplethysmography (PPG) or other optical solutions into our next generation medical sensors. This is a fantastic opportunity for you to build and shape iRhythm’s optical expertise.

This is a hybrid position, and 2-3 days/week at our San Francisco, California office + lab will be required. Will need to be flexible to work 100% onsite as needed.

Day to day responsibilities:

  • Be the lead subject matter expert for optics within the company.
  • Selecting and integrating appropriate optical components (LEDs, photodiodes, etc.).
  • Use optical modeling software to design optical systems, custom lenses, etc.
  • Optimize (non-invasively) optical coupling to and from the human body’s surface for high SNR.
  • Identify and mitigate top risks of optical integration.
  • Assess sensor performance under various physiological (e.g., skin tone) and environmental conditions.
  • Develop test systems to validate PPG design (component and system performance) and aid in the manufacturing verification test system when moving product to high volume ramp.
  • Interact with vendors to procure parts to necessary specifications and to drive specifications to meet project objectives.
  • Actively contribute to the generation of intellectual property.
  • Travel to our Cypress, CA manufacturing facility and other vendors as needed.
  • Develop reliability tests for optical portions of our products.
  • Responsible for evaluation of failure modes, conducting root cause analysis, and implementation of corrective actions for the company’s products.


  • Degree in Biomedical Engineering, EE, Optics, Physics, or related fields.
    • PhD (experience preferred)
    • Master's with 5-8 years relevant experience
  • Optical instrumentation and system design experience.
  • Self-motivated and able to work independently. Problem solver.
  • Someone who enjoys working in the lab and prototyping concepts.
  • Comfortable working with minimal supervision.

Desired Skills:

  • Tissue optics
  • Solid state optical semiconductors
  • Experience with a scripting language for analyzing and plotting data (Python a plus).

What's In It For You

This is a regular full-time position with competitive compensation package, excellent benefits including medical, dental, and vision insurances (all of which start on your first day), health savings account employer contributions (when enrolled in high deductible medical plan), cafeteria plan pre-taxed benefits (FSA, dependent care FSA, commute reimbursement accounts), travel reimbursement for medical care, noncontributory basic life insurance & short/ long term disability. Additionally, we offer:

  • emotional health support for you and your loved ones
  • legal / financial / identity theft/ pet and child referral assistance
  • paid parental leave, paid holidays, travel assistance for personal trips and PTO!

iRhythm also provides additional benefits including 401(k) (with company match), an Employee Stock Purchase Plan, pet insurance discount, unlimited amount of Linked In Learning classes and so much more! 

FLSA Status: Exempt


Actual compensation may vary depending on job-related factors including knowledge, skills, experience, and work location.


Estimated Pay Range
$161,200$200,000 USD

As a part of our core values, we ensure a diverse and inclusive workforce. We welcome and celebrate people of all backgrounds, experiences, skills, and perspectives. iRhythm Technologies, Inc. is an Equal Opportunity Employer. We will consider for employment all qualified applicants with arrest and conviction records in accordance with all applicable laws.

iRhythm provides reasonable accommodations for qualified individuals with disabilities in job application procedures, including those who may have any difficulty using our online system. If you need such an accommodation, you may contact us at taops@irhythmtech.com

About iRhythm Technologies
iRhythm is a leading digital healthcare company that creates trusted solutions that detect, predict, and prevent disease. Combining wearable biosensors and cloud-based data analytics with powerful proprietary algorithms, iRhythm distills data from millions of heartbeats into clinically actionable information. Through a relentless focus on patient care, iRhythm’s vision is to deliver better data, better insights, and better health for all.

Make iRhythm your path forward. Zio, the heart monitor that changed the game.

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