Your next challenge

Ready to make a difference? Here’s what awaits you.

As part of a major expansion of our laboratories, we’re looking ahead and recruiting an Analytical Chemistry Engineer specialised in Mass Spectrometry to join un by mid-2026. In this role, you’ll play a key part in accelerating the development of innovative medicines by ensuring the accurate characterisation of complex biotherapeutics.

You’ll join a team of six passionate scientists, working closely with a Technical Leader and contributing to projects that span from early development to clinical and commercial phases. Your expertise will help shape the future of therapies for patients worldwide.

Your key responsibilities

Here’s what you’ll be in charge of:

  • Applying and adapting analytical methods to characterise biotherapeutic products such as monoclonal antibodies, proteins, peptides, oligonucleotides and viral vectors
  • Preparing samples and performing analyses using state-of-the-art equipment (e.g., Xevo G2 XS QTOF, BioAccord TOF, Autoflex MALDI-TOF)
  • Processing data, interpreting results, and drawing clear conclusions
  • Developing new analytical approaches and optimising existing protocols
  • Writing analytical reports and related documentation with precision and clarity

Skills you’ll need to bring

To succeed in this role, you’ll demonstrate:

  • Strong scientific background with specialisation in mass spectrometry and/or biotherapeutic characterisation
  • Solid experience (minimum 5 years) in a GMP or regulated environment
  • Expertise in high-resolution mass spectrometry
  • Knowledge of biotherapeutic products (mAbs, proteins, peptides) for analytical purposes
  • Proficiency in liquid chromatography ((U)HPLC)
  • Familiarity with Waters equipment and associated software (Empower, Unifi)

Our commitment to you

Join us and make a real impact on patients’ lives while growing your career in a supportive, innovative environment.

Here’s why you’ll love working with us.

  • A competitive salary package and attractive extra-legal benefits (meal vouchers, hospitalisation and outpatient care insurance, group insurance, bonus scheme)
  • A tailored onboarding and training programme to boost your expertise and career progression
  • Opportunities for internal mobility and promotion – in 2024 alone, 30 colleagues advanced their careers with us
  • A workplace that values well-being: team-building events, afterworks, sports and leisure activities, family-friendly gatherings, and more
  • Everyday perks that make a difference: free fitness classes, fresh fruit, up to four car washes per year and practical services like lunch delivery

Who we are

And why it matters

We are a leading Belgian Contract Research Organisation (CRO) supporting the pharmaceutical industry with the full range of analytical services required by EMA and FDA regulations.

From early development to drug registration and beyond, we design analytical protocols, develop methods, and perform studies that ensure the safety, efficacy and quality of innovative medicines.

With 280 experts, state-of-the-art technologies, and all labs centralised on one site in Donstiennes, Belgium, we combine scientific excellence with human values to shape the future of medicine faster, smarter, together.