Analytical Chemist | LC-MS & Organic Synthesis Quality Control

Work Schedule

Standard (Mon-Fri)

Environmental Conditions

Laboratory Setting, Office, Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.)

Job Description

About Thermo Fisher Scientific

At Thermo Fisher Scientific, we develop solutions that help people live healthier, cleaner, and safer lives. This is more than our mission — it is the impact our colleagues make every day.

At our Vilnius site, we develop and manufacture innovative life science and diagnostic technologies used by researchers, clinicians, and laboratories around the world. Our teams work with advanced products, modern analytical equipment, and high-quality standards to support scientific discovery and global healthcare.

Join a team where analytical chemistry, LC-MS technologies, data interpretation, and quality control directly contribute to products used worldwide.

Job Overview

We are looking for an Analytical Chemist to join our Quality Control team and support qualitative and quantitative testing of in-process and final products within the organic synthesis value stream.

In this role, you will perform hands-on analytical testing, interpret mass spectrometry data, evaluate results, maintain accurate documentation, and support investigations when testing processes do not meet expected requirements. You will also contribute to inventory control and, when needed, participate in analytical method development and method validation activities.

This role is a strong fit for a chemist, biochemist, bioengineer, or analytical scientist with practical experience in LC-MS, mass spectrometry data interpretation, and preferably proteomics, metabolomics, or related omics workflows.

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 assigned quality testing activities, including timing, priorities, and test status

• Investigate non-conforming testing processes in accordance with approved procedures

• Complete and maintain testing protocols, equipment logs, quality records, and other required laboratory documentation

• Create, update, and manage quality database records

• Monitor raw material, reagent, and laboratory inventory levels and initiate timely orders when needed

• Participate in analytical method development and method validation activities when required

• Collaborate with R&D, process development, and other cross-functional colleagues to resolve testing-related issues

• Support continuous improvement of analytical testing, documentation, and laboratory workflows

Experience and Qualifications

• University degree in Chemistry, Biochemistry, Bioengineering, Biotechnology, Analytical Chemistry, or another related scientific field

• Hands-on experience in mass spectrometry data interpretation

• Practical experience in proteomics, metabolomics, or related omics workflows

• Practical experience with LC-MS or other mass spectrometry-based analytical techniques

• Understanding of analytical methods and experience performing laboratory analyses

• Knowledge of working safely with chemical substances

• Understanding of laboratory equipment operation and maintenance principles

• Knowledge of quality management system standards and documentation requirements

• Experience working in a controlled or regulated laboratory environment

• Good written and spoken English skills

• Master’s degree would be an advantage

Skills and Competencies

• Strong analytical thinking and ability to interpret complex laboratory data

• Ability to assess LC-MS or mass spectrometry results and identify trends, issues, or inconsistencies

• Strong attention to detail and accurate documentation skills

• Ability to work according to approved procedures, quality standards, and data integrity principles

• Ability to investigate testing issues, identify possible causes, and support problem-solving activities

• Good planning, organization, and time management skills

• Responsible approach to laboratory work, chemical safety, and controlled environment practices

• Ability to work independently and collaborate effectively with R&D, process development, quality, and laboratory teams

• Fast orientation and ability to manage changing priorities in a laboratory environment

Preferred Qualifications

• Experience with LC-MS method application, troubleshooting, or method optimization

• Experience with HPLC, PCR, qPCR, or other analytical methods

• Experience in organic synthesis product testing, quality control, analytical chemistry, biochemistry, biotechnology, or a regulated laboratory environment

• Experience participating in analytical method development or method validation

• Experience working with quality databases, ERP systems, or laboratory information systems, such as E1 or equivalent

• Knowledge of quality standards, controlled environment practices, and laboratory documentation principles

What We Offer

• Annual performance bonus and additional financial benefits

• Comprehensive health package, including private health, life and accident insurance

• Wellbeing support for employees and their family members, including mental health consultations, health check-ups, vaccinations, and on-site health initiatives

• Opportunities for professional growth through internal training, access to Thermo Fisher e-University, and continuous development

• The opportunity to work in a global, innovation-driven organization and collaborate with international teams

• Daily benefits such as subsidized meals, gym access, and company transportation

• An inclusive and supportive culture, with team events and community initiatives

• 2 additional paid volunteering days per year

We are an equal opportunity employer and value diversity. All qualified applicants will receive consideration regardless of race, religion, gender, age, disability, veteran status, sexual orientation, gender identity, or any other protected characteristic.

How to Apply

If you enjoy hands-on analytical chemistry, LC-MS, mass spectrometry data interpretation, and quality control — and want to contribute to products used by scientists and laboratories around the world — we would love to hear from you.

Compensation

The monthly salary range estimated for this position based in Lithuania is €2 891,67–€4 335,42.