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Level Zero Health

Wearable biosensor for continuous hormone monitoring

Microsystems Engineer

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

About the Job

Requirements

  • A Master's degree with 1–4 years of industry experience, or a PhD with 0–2 years of industry experience, in microfluidics, microtechnology, materials science, biomedical engineering, nanotechnology, or a related discipline, focused on microfluidics and/or wearable or microneedle technologies.
  • Hands-on experience in microfabrication cleanroom environments, including silicon wafer processing, laser etching, photolithography, wet etching using HF or KOH, dry etching using RIE or ICP, microscopy, thin film deposition, e-beam lithography, laser lithography, or other relevant microfabrication techniques.
  • Proven experience ideating and designing microfluidic chips, including core components such as mixers, metering systems, and valves.
  • A strong understanding of microscale fluid dynamics and flow control, including pressure-driven flow, capillary flow, and paper wicking.
  • Experience in mechanical testing and material characterisation of biological samples.

Responsibilities

  • Design and develop microfluidic wearable platforms, including CAD modelling, lithography, and experimental setup.
  • Fabricate biosensor devices through iterative prototyping in cleanroom environments, validate devices, and prepare them for scale-up and manufacturing.
  • Run device characterisation experiments and track performance on synthetic replicas or during clinical studies.
  • Contribute to early-stage R&D and collaborate with engineering leadership to define and refine future design iterations.

Desired Qualifications

  • Experience handling and managing the flow of dermal interstitial fluid.
  • Experience designing wearable medical devices.
  • Knowledge of electrochemistry and biosensing principles.
  • Prior work in a start-up or small company environment.

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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