Analytical Chemist – LC‑MS & Organic Synthesis QC

About the role

Thermo Fisher Scientific is seeking an Analytical Chemist to join its Quality Control team at the Vilnius site. You will be responsible for qualitative and quantitative testing of in‑process and final products within the organic synthesis value stream, using advanced LC‑MS instrumentation and data interpretation techniques.

Key responsibilities

• Perform qualitative and quantitative testing of in‑process and final products according to approved documentation.
• Interpret analytical data, including mass spectrometry results, and report findings accurately and on time.
• Plan and prioritize quality testing activities, monitor test status, and maintain laboratory documentation.
• Investigate non‑conforming testing processes and support root‑cause investigations.
• Maintain testing protocols, equipment logs, quality records, and manage quality database entries.
• Monitor raw material, reagent, and inventory levels and trigger timely orders.
• Participate in analytical method development and validation when required.
• Collaborate with R&D, process development, and cross‑functional teams to resolve testing‑related issues.

Required profile

• University degree in Chemistry, Biochemistry, Bioengineering, Biotechnology, Analytical Chemistry or a related scientific field.
• Hands‑on experience in mass spectrometry data interpretation.
• Practical experience with proteomics, metabolomics or related omics workflows.
• Experience in a regulated quality‑controlled laboratory environment is preferred.

Required skills

• LC‑MS operation and data interpretation
• Mass spectrometry data analysis
• Proteomics workflows
• Metabolomics workflows
• Analytical method development
• Method validation