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Level Zero Health

Wearable biosensor for continuous hormone monitoring

Lead Biosensor Scientist - Continuous Monitoring

Biomedical Engineering & Medical DevicesConfirmed live in the last 24 hours
Full-timeLondon, UK

About the Job

Requirements

  • A Ph.D. degree in electrochemistry, materials science, biomedical engineering, or a related discipline, with a specific focus on electrochemical biosensors.
  • At least 4 years of industry experience commercialising continuous monitoring or diagnostic sensor technologies.
  • Deep experience in electrochemical sensor development, particularly amperometric, potentiometric, or impedance-based platforms, with progression from research concept to clinical or commercial application.
  • A proven track record managing regulatory submissions, including FDA 510(k), De Novo, or CE marking, for continuous monitoring devices.
  • Experience designing and executing large-scale analytical verification studies, including stability, accuracy, precision, and matrix interference assessments.
  • Experience working with in vivo validation studies, including study design, data interpretation, and regulatory reporting.
  • Knowledge of manufacturing readiness, scale-up strategy, and GMP-compatible processes.
  • Ability to operate in QMS-ready environments and familiarity with ISO 13485, design controls, and regulatory compliance frameworks.
  • Understanding of biocompatibility, sterility, and shelf-life requirements for implantable or skin-worn continuous devices.
  • Proficiency in surface chemistry, material selection, and biointerface optimisation.
  • Expertise in aptamer-based biorecognition elements and aptamer optimisation for continuous monitoring applications.

Responsibilities

  • Lead the development and optimisation of electrochemical continuous sensor systems from bench concept through manufacturing readiness.
  • Design and execute large-scale analytical verification studies, including multi-parameter performance characterisation, stability assessments, and biocompatibility validation.
  • Oversee in vivo validation studies in human subjects and troubleshoot sensor performance in clinical settings.
  • Define manufacturing processes, material specifications, and quality control parameters aligned with regulatory expectations and QMS frameworks.
  • Engage directly with regulatory pathways, including FDA and EMA, to define performance specifications and shape submission strategy.
  • Lead cross-functional efforts with electrochemistry, microfabrication, and manufacturing teams to translate designs into scalable production.
  • Develop technical documentation packages, including CMC and analytical performance dossiers, for regulatory submissions and investor communications.
  • Mentor junior scientists and technicians in sensor characterisation and assay validation methodologies.

Desired Qualifications

  • Experience with microneedle or transdermal ISF technologies.
  • Familiarity with SELEX or aptamer discovery workflows.
  • Experience with MEMS and electrode microfabrication processes.

About the Company

Level Zero Health

Wearable biosensor for continuous hormone monitoring

Level Zero Health develops a biosensor platform for remote, continuous hormone monitoring using a minimally invasive arm patch. The patch uses DNA-based biosensors and microneedles to measure hormones like progesterone, estrogen, cortisol, and testosterone in interstitial fluid and sends real-time data to a connected system. It differentiates itself by delivering continuous wearable hormone data with validated accuracy and by targeting B2B clinical workflows in IVF, menopause care, and TRT, with plans to pursue regulatory approvals. Its goal is to replace infrequent blood or urine tests with continuous data streams to support personalized care and later expand into consumer and pharmaceutical markets.

Company size
11-50
Company stage
Seed
Total funding
$6.9M
Headquarters
London, United Kingdom
Founded
2023

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