Lead Electrochemical Biosensor Engineer for Wearables

Point Fit Technology Limited; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

Point Fit Technology Limited in Hong Kong designs, fabricates, and optimizes electrochemical biosensors for sweat biomarkers such as lactate, glucose, cortisol, and electrolytes, with wearable applications.

The role covers developing biorecognition interfaces, performing in-depth sensor characterization, and translating lab-scale fabrication into scalable, robust processes for on-body studies in collaboration with clinical partners.

Qualifications

• Master or PhD in Biochemistry, Analytical Chemistry, Electrochemistry, Biomedical Engineering, Chemical Engineering, or a related field.
• 3+ years of R&D experience developing electrochemical biosensors.
• Hands-on expertise with enzymatic and/or aptamer-based electrochemical sensors for biofluids such as sweat, saliva, interstitial fluid, or blood.

Responsibilities

• Design, fabricate, and optimize electrochemical biosensors for sweat analytes.
• Develop and refine biorecognition interfaces, including enzyme immobilization and surface functionalization.
• Characterize sensor performance using amperometry, cyclic voltammetry, square wave voltammetry, EIS, and potentiometry.
• Address real-world challenges of sweat sensing and develop calibration strategies.
• Collaborate with hardware teams to integrate sensors onto flexible or screen-printed platforms.
• Plan and support on-body studies and validation with clinical partners and regulatory considerations.
• Translate lab-scale fabrication into scalable processes with QC and shelf-life testing.
• Mentor junior engineers, review experimental designs, and contribute to sensor roadmap.
• Document work rigorously, present findings, and contribute to patents/publications.

Skills

Electrochemical biosensors

Analytical chemistry

Surface functionalization

Bioconjugation

Python/MATLAB/R

Regulatory/ethics

Communication

Education

PhD/Master in Analytical/Electrochemistry

Tools

Potentiostats

Python

MATLAB

R

Job description

Point Fit Technology Limited in Hong Kong designs, fabricates, and optimizes electrochemical biosensors for sweat biomarkers such as lactate, glucose, cortisol, and electrolytes, with wearable applications.

The role covers developing biorecognition interfaces, performing in-depth sensor characterization, and translating lab-scale fabrication into scalable, robust processes for on-body studies in collaboration with clinical partners.