Job Title

About Unravel Health Limited Unravel Health is developing a handheld saliva-based at-home lab that quantifies multiple hormones and biomarkers in under 90 seconds. Developed on patented biosensor technology, developed over 8 years it enables daily, non-invasive measurements of up to 16 markers from a 10 L sample. This is transforming how we understand one of the most fundamental parts of women''s health - their fluctuating hormone trends over time. About the Role We are looking for a highly experienced and motivated Senior Materials Scientist/Microfluidic Engineer to lead material innovation and process development for our microfluidic cartridge devices. Technical Expertise Hands-on experience in microfluidic device design, prototyping, and testing. Deep knowledge of polymers, composites, coatings, and surface treatments for microfluidic and diagnostic applications. Familiarity with microfabrication and assembly techniques (e.g., bonding methods, lithography, laser cutting, 3D printing, or injection moulding). Proficiency in characterisation tools (mechanical, thermal, surface, and optical) and statistical methods for quality control. Experience in developing scalable manufacturing processes with a focus on cost-effectiveness and yield improvement. Knowledge of fluid dynamics, reagent compatibility, and biofouling mitigation in microfluidic environments. Experience with freeze-drying (lyophilisation) techniques for stabilising biological reagents. Expertise in long-term reagent storage, stabilisation strategies, and integration into diagnostic devices. Desirable Skills Experience in working with biosensors (electrochemical, optical, or immunoassay-based). Familiarity with CAD software (SolidWorks or AutoCAD) for device design. Knowledge of regulatory and quality standards (ISO 13485, medical device development). Background in sustainability and recyclability of materials in device design is an advantage. Qualifications PhD (preferred) or Masters degree in Materials Science, Biomedical Engineering, Chemical Engineering, or a related discipline. Strong background in microfluidics, biosensors, or lab-on-a-chip technologies. Proven experience in materials integration into functional devices and understanding of system-level performance requirements. Personal Attributes Strong creative problem-solving abilities with high attention to detail. Very self-directed Excellent teamwork and cross-disciplinary communication skills (working closely with biologists, chemists, and engineers). Commercial awareness with focus on device performance, user experience, and cost constraints. Proactive, innovative, and motivated to contribute in a fast-paced start-up environment.55b20050-bc17-4e5d-bfce-3c406318dffc