Description
Sensorex Summary
At Sensorex, we believe that even the most complex water analysis should be fast and simple to perform. Sensorex specializes in the design and manufacture of pH and ORP electrodes, conductivity and TDS sensors, and other electrochemical and optical measurement technologies. We’ve introduced some leading edge technologies since our initial launch in 1972, and today, we remain focused on the continual advancement of water quality monitoring products.
Trusted by over 250 market leaders in water treatment applications, Sensorex offers industry leading sensor development services alongside application advisory services. With our strong legacy of supporting OEMs through custom offerings, as well as domestic and international distribution partners, we deliver a seamless buying experience and fast delivery. In addition to our factory and headquarters in Garden Grove, California, United States, Sensorex also has manufacturing capability in Czech Republic in support of our European customers. We offer localized support with sales and customer service representatives based in UK and Czech Republic.
Sensorex is a subsidiary of Halma plc (“Group”) under the Environmental & Analysis Sector. Halma plc is listed on the London Stock Exchange whose purpose is to grow a safer, cleaner, healthier future for everyone every day! Halma plc has a current market capitalization of approximately £7 billion. The group has nearly 50 businesses operating through three sectors (Healthcare, Environmental & Analysis, and Safety) in more than 20 countries and major operations in Europe, North and South America and Asia, supplying customers in 160 countries and employing more than 6,600 people worldwide.
Job Description
This senior-level role is designed for a scientist who thrives at the intersection of electrochemistry, analytical chemistry, and sensor innovation. The Principal Chemist will lead advanced research and development efforts focused on electrochemical, amperometric, and optical sensor technologies for water quality monitoring, shaping both the technical direction and scientific rigor of the organization’s sensor platform. This position plays a central role in shaping the next generation of water sensing technologies. The Principal Chemist will influence scientific strategy and drive innovations that directly impact environmental monitoring, public health, and sustainable water management.
Key Responsibilities
Lead the design, development, and validation of our next generation sensors for water quality applications, including electrode architecture definition and chemical formulary creation.
Drive experimental strategy for electrochemical method development, including voltammetric and amperometric techniques, calibration protocols, and signal interpretation.
Oversee the formulation, testing, and validation of water sensor prototypes under laboratory and field conditions, ensuring performance, stability, and regulatory alignment.
Collaborate with cross-functional engineering teams to integrate electrochemical sensing elements into complete hardware systems, including electronics, firmware, and data-processing workflows.
Evaluate emerging technologies, materials, and electrochemical approaches to guide long-term R&D strategy and maintain scientific leadership in water sensing.
Author technical reports, patent disclosures, and peer-reviewed publications that advance the organization’s scientific footprint.
Requirements
Required Qualifications
PhD in Chemistry with a focus in electrochemistry, analytical chemistry, materials chemistry, or a closely related discipline.
Demonstrated, deep expertise in amperometric sensors and current-based electrochemical detection methods.
Extensive experience (typically 5+ years post-PhD) in electrochemistry research or industrial applications involving sensor development, electroanalytical techniques, or electrochemical device engineering.
Proven track record of designing and executing complex electrochemical experiments, interpreting data, and translating findings into functional sensor technologies.
Strong understanding of redox chemistry, electrode materials, electrolyte systems, and electrochemical interfaces.
Preferred Qualifications
Direct experience developing, deploying, or validating water quality sensors, including pH, dissolved oxygen, chlorine, nitrate, or other electrochemically detectable analytes.
Familiarity with environmental monitoring standards, sensor drift mechanisms, and long-term stability challenges in aqueous environments.
Demonstrated success in cross-functional collaboration with mechanical, electrical, and software engineering teams.
Technical Competencies
Advanced electrochemical techniques: amperometry, chronoamperometry, cyclic voltammetry, pulse voltammetry, impedance spectroscopy.
Electrode design and materials: noble metals, carbon-based electrodes, conductive polymers, coatings, and surface functionalization.
