Electrochemical Scientist

TACHMED is an early-stage medical device company developing connected in vitro diagnostic systems comprising biochemical assays, hardware instrumentation, and regulated software and algorithms. The company conducts in-house R&D and validation activities, with outsourced commercial manufacturing. This role will play a critical role in driving the development, validation and translation of electrochemical biosensor assays from early feasibility through scalable, regulatory-ready prototypes.

The Electrochemical Scientist role encompasses assay optimisation, analytical validation, stability studies, matrix adaptation, and collaboration with manufacturing to ensure robustness and reproducibility in a medical device development environment. The Electrochemical Scientist reports to the Senior Product Manager. The role is on‑site at the West London laboratory.

• Design and execute electrochemical experiments for development of biomarker assays (proteins, infectious disease targets, electrolytes, inflammatory markers)
• Optimise electrode functionalisation, surface chemistry, and assay workflows (gold and graphene electrodes)
• Lead matrix adaptation of assays (buffer → serum → plasma → whole blood), addressing interference, fouling, and variability
• Translate proof‑of‑concept assays into robust, reproducible prototypes suitable for point‑of‑care deployment
• Design and execute analytical validation studies (LOD, LOQ, precision, linearity, specificity, interference, reproducibility)
• Plan and conduct stability and robustness studies (reagent stability, electrode stability, environmental stress testing)
• Apply Design of Experiments (DoE) and statistical analysis to drive assay optimisation and robustness
• Evaluate materials, membranes, and reagents for performance, manufacturability, and scalability
• Maintain detailed experimental documentation and present findings to internal stakeholders.

• Mentor and support junior scientists and laboratory staff
• Contribute to project planning and cross‑functional coordination
• Work closely with product, regulatory, and clinical teams to support assay translation and validation

• Design and document experiments in alignment with IVD regulatory expectations (ISO 13485, FDA QSR, IVDR where applicable)
• Ensure traceability of materials, reagents, instruments, and data
• Contribute to analytical validation reports and technical documentation
• Support risk assessment activities (e.g., FMEA, assay failure mode analysis)
• Collaborate with manufacturing partners to support assay transfer, process robustness, and reproducibility
• Contribute to development of scalable assay protocols suitable for pilot and early manufacturing builds.

• Electrochemical techniques and instrumentation
• Surface functionalisation and biomolecule immobilisation
• Assay design, optimisation, and validation workflows
• Statistical analysis and DoE
• Technical documentation and regulatory awareness
• Problem‑solving and experimental design
• Cross‑functional collaboration in multidisciplinary teams
• Adaptability in a fast‑paced startup R&D environment.

• Proven expertise in electrochemical biosensors
• Hands‑on experience with electrochemical techniques (EIS, DPV, SWV, CA)
• Experience in regulated or quality‑controlled development environments preferred
• Proactive attitude and ability to self‑manage
• Attention to detail
• Good communication skills (verbal and written)
• Excellent organisational skills
• Strong scientific communication skills
• Knowledge of Microsoft 365.

• 2+ years of relevant assay development experience
• (Desired) Masters in Electrochemistry, Materials Science, Chemical Engineering, or a biology‑related field
• (Desired) Ph.D. in Electrochemistry, Materials Science, Chemical Engineering, or a biology‑related field.