Scientist - Development of Ion-Selective Electrode

MoleSense; Lausanne; Vor Ort; CHF 95.000 - 130.000; Vollzeit

Benefits dieser Stelle

Swiss visa sponsorship

Access to EPFL labs

Zusammenfassung

MoleSense is seeking a Scientist to lead the development of a sweat chloride sensor for our wearable platform, advancing ion-selective and potentiometric sensors from concept through optimization and validation in real sweat. You will ensure reliability in challenging matrices, tackling selectivity, drift, calibration stability, and sensor lifetime.

You will design sensor-rich hardware, optimize membranes and interfaces, and collaborate across multidisciplinary teams to deliver manufacturable

Qualifikationen

• Hands-on experience developing ion-selective or potentiometric sensors, ideally for chloride.
• Experience with ion-selective membranes, ionophores, reference electrodes, and electrode fabrication.
• Understanding drift, calibration stability, matrix effects, fouling, and reference electrode stability.
• Experience testing sensors in sweat, biofluids, or other complex matrices.

Aufgaben

• Design and manufacture the sensor-rich PCB + corresponding mechanical platform.
• Develop and optimize chloride-selective and reference electrodes for sweat.
• Optimize membrane composition, electrode interfaces, and sensor conditioning.
• Characterize selectivity, sensitivity, drift, stability, reproducibility, and lifetime.
• Validate sensors in artificial and human sweat and investigate matrix effects.
• Establish robust fabrication, calibration, and testing protocols.
• Integrate the sensor with microfluidics, electronics, and the MoleSense wearable platform.
• Troubleshoot failure modes and drive the sensor toward a reproducible, manufacturable design.
• Document development and contribute to IP and product development.

Kenntnisse

Ion-selective sensor development

Potentiometric sensors

Electrochemistry

Wearable sensor experience

Sensor integration

Tools

Ion-selective membranes

Ionophores

Reference electrodes

Sensor fabrication

Electrode interfaces

Jobbeschreibung

Scientist - Development of Ion-Selective Electrode

About us

We are developing Wear & Forget® wearables for continuous hormone monitoring, combining on-demand sweat extraction with aptamer-based biosensing. Based at the Lausanne Biopôle, we are a small, multidisciplinary team of scientists and engineers driven by a shared mission: bringing real-time, non-invasive biomarker monitoring to reproductive and maternal health. We thrive in a fast-paced, collaborative environment where scientific rigor, rapid iteration, and real-world impact are at the core of everything we do.

The role

We’re looking for a scientist with hands-on experience developing ion-selective and potentiometric sensors to lead the development of a sweat chloride sensor for our wearable platform.

You’ll take an existing sensor concept through optimization, validation, and integration, with a focus on reliable performance in real sweat: selectivity, stability, drift, reproducibility, calibration, and sensor lifetime.

General electrochemistry experience without prior ion-selective/potentiometric sensor development is not sufficient for this role..

Responsibilities

• Design and manufacture the sensor-rich PCB + corresponding mechanical platform
• Develop and optimize chloride-selective and reference electrodes for sweat
• Optimize membrane composition, electrode interfaces, and sensor conditioning
• Characterize selectivity, sensitivity, drift, stability, reproducibility, and lifetime
• Validate sensors in artificial and human sweat and investigate matrix effects
• Establish robust fabrication, calibration, and testing protocols
• Integrate the sensor with microfluidics, electronics, and the MoleSense wearable platform
• Troubleshoot failure modes and drive the sensor toward a reproducible, manufacturable design
• Document development and contribute to IP and product development

About You

• You have direct, hands-on experience developing ion-selective or potentiometric sensors, ideally for chloride
• You have worked with ion-selective membranes, ionophores, reference electrodes, and electrode fabrication
• You understand practical challenges such as drift, calibration stability, matrix effects, fouling, and reference electrode stability
• You have tested sensors in sweat, biofluids, or other complex matrices
• You have experience taking sensors from laboratory prototypes toward integrated devices
• You have a background in electrochemistry, analytical chemistry, materials science, bioengineering, or a related field
• Experience with wearable sensors, flexible or printed electrodes, or microfluidics is a strong advantage

What we offer

• Work on cutting-edge femtech hardware from prototype to product
• A collaborative, multidisciplinary, international team
• The opportunity to build next-generation molecular sensing technologies with real clinical impact
• Swiss visa and work permit sponsorship for outstanding international candidates
• A fast-moving, highly collaborative team where decisions happen quickly
• Resources, autonomy and trust to do exceptional work
• Access to EPFL's world-class laboratories and research ecosystem
• Direct collaboration with leading scientists and engineers across biosensing, chemistry and device development
• Clear opportunities to grow into technical leadership as the company scales

Be part of the molecular health revolution