Assay Development Scientist (Lateral Flow Assays) – Biohit Oyj, Helsinki
25.4.2026Apply latest by 7.5.2026
Job description
Are you a self-reliant and solution-oriented person? Would you like to be part of a fast-growing company and work on impactful diagnostics development?
Our customer Biohit Oyj is looking for an Assay Development Scientist to join a team focused on Lateral Flow Assay (LFA) product development. The position is full-time and permanent, and the employment contract is formed directly with Biohit Oyj. The workplace is located along good transport links in Roihupelto in Helsinki. The work is mainly done at the office, but partial remote work is possible. We hope that you could start in the position as soon as possible.
About the role
In this role, you will work hands-on in the laboratory to develop and optimize lateral flow immunoassays. You will translate assay needs into clear experimental plans (”design inputs”), generate and document evidence-based assay performance (”design outputs”), and support verification activities by defining test approaches, acceptance criteria, and performance summaries. You will collaborate with relevant internal stakeholders (e.g., development, quality interfaces, manufacturing interfaces as needed) to ensure assay development deliverables are clear, complete, and ready for next-stage work.
Main responsibilities
- Hands-on laboratory development and optimization of lateral flow assays, including iterative troubleshooting and robustness improvements
- Define assay development objectives and requirements (design inputs) and convert them into clear experimental plans, protocols, and study outlines
- Execute experiments with strong attention to detail, maintain structured lab records, and produce clear, concise development reports
- Analyze and summarize assay performance using appropriate data handling and basic statistics; communicate conclusions and recommendations clearly
- Produce assay development deliverables (design outputs), such as optimized assay conditions, preliminary specifications/targets, and documented rationale for key design choices
- Support verification/performance evaluation from the assay-development perspective by helping define test methods, sample/data needs, and acceptance criteria, and by summarizing results in a structured format
- Contribute to feasibility studies and investigations, including collaboration with external partners when needed, and participate in continuous improvement of development ways of working
What we require
- Degree in biochemistry, biotechnology, biomedical/chemical engineering, analytical chemistry, or a related field (or equivalent relevant competence)
- Strong biochemistry laboratory techniques and good laboratory practices
- Strong theoretical background in biochemistry/biotechnology relevant to immunoassays
- Proven capability in experimental design with clear, detailed, and concise planning and reporting
- Basic biomedical data analysis and statistics skills applicable to assay development
- Excellent documentation skills in English
- Strong problem-solving skills and high attention to detail
- Hands-on experience with immunoassays; lateral flow assay experience is strongly preferred
Languages
- Fluent professional English (written and spoken)
- Fluency in Finnish is considered a plus
You will succeed in this position if you are
- Self-reliant, organized, and comfortable driving hands-on lab work forward
- Curious and practical, with a structured approach to troubleshooting and iteration
- Clear and consistent in documentation and communication across a multidisciplinary team
Biohit Oyj offers you
An interesting and challenging position with versatile assignments. You get to work in a dynamic work environment with amazing and professional colleagues. You will have a great opportunity to work on exciting projects and become part of a fast-growing company. Biohit Oyj supports you to learn and develop your personal skills and gives you the opportunity to grow within the company. Biohit Oyj offers many benefits such as lunch benefit and sport benefit. Biohit Oyj also provides occupational healthcare services. The monthly salary range for this role is 3600-4400 €, depending on experience.
For further information about the position and the recruitment process, please contact Eilakaisla’s HR Consultant, Hanna Kekkonen, by email at firstname.lastname@eilakaisla.fi or by phone at +358 50 431 4017. Hanna is happy to answer questions by phone on 29.4. between 10-11 and on 6.5. between 15-16.
Työsuhteen tyyppi: permanent, full-time