Director - Immunoassay Development

Hertfordshire, UK Talentmark Director – Immunoassay Development On-site/ Hybrid | London/Stevenage | Permanent Talentmark is working with an innovative, early-stage diagnostics company developing next-generation at-home testing technology. We are looking for an Associate Director / Director – Assay Development to take ownership of assay development and help shape the company's scientific direction. This is a hands-on leadership role, taking assays from initial design and optimisation through to validation and commercialisation. The role is currently based in Stevenage, with the longer-term expectation that the company will be London-based. Candidates should therefore be comfortable commuting to Stevenage initially, with longer-term transition to London and hybrid working.  Key Responsibilities Lead the design and development of quantitative immunoassays. Drive optimisation of sensitivity, precision, reproducibility and stability. Design and execute assay development and validation studies. Maintain robust documentation aligned with regulatory and technical-file requirements. Establish high standards for data integrity, experimental rigour and statistical analysis. Manage external scientific collaborators and advisors.Your Background: You are an experienced immunoassay scientist with a strong industry leadership background in diagnostic assay development, with track record in taking assays through validation towards commercial release.  Essential Experience PhD in Biochemistry, Analytical Chemistry, Bioengineering, Biomedical Science or a related discipline. Industry experience in diagnostics or assay development (5 yrs+) Strong hands-on expertise in immunoassay development, particularly ELISA, with a good working knowledge of enzymatic assays. Experience translating laboratory immunoassays into point-of-care, lateral-flow, biosensor or microfluidic cartridge formats. Experience with low-concentration analyte measurement Proven experience developing diagnostic assays through validation and commercial release. Practical experience working with human biological samples (blood, saliva or urine).Desirable Experience Experience developing steroid or peptide hormone assays. Familiarity with freeze-drying / lyophilisation for reagent stabilisation. Knowledge IVD technical-file preparation for CE, UKCA or FDA submissions. Experience building or leading a laboratory/science team. Experience working with aptamer technology.What's on Offer The opportunity to take diagnostic assays from concept through validation and towards market. A senior, hands-on role within an ambitious early-stage company. Competitive salary and share equity options scheme. Apply: It is essential that applicants hold entitlement to work in the UK. Please quote job reference (Apply online only) in all correspondence