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CLS Services


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Company profile

Recruitment is about people. Our drive is to make people happy. Not only by having excellent employment conditions but also by trying to make the whole recruitment process a more fun and positive experience. We will prepare you as good as possible for upcoming interviews, which increases the chance of finding you a suitable position at one of our clients or in your own network.
Thanks to our own background and experience in the field of Chemistry & Life Sciences, we speak your language, we understand your needs and the challenges you face. But we also speak the language of our clients, what do they need in an employee to be successful? Only through really understanding both sides, we can help both people and organisations to achieve good and lasting results.
CLS Services offers the opportunity to get the best out of yourself and the organisation. Together with our career coach we can offer career coaching through individual support, but we also offer tools directed at stimulating effectiveness within a team.
Through our extensive experience, we have built expert knowledge in our field when it comes to recruitment & selection. We work as a team. We share ideas, knowledge and skills, in order to achieve excellent results. Interested to know what we can do for you? Visit our website www.cls-services.nl for more information, current vacancies or send an open application.

Relevant studies

  • Chemistry
  • Bio-Pharmacy
  • Biology
  • Health
  • Life Sciences

Study levels

  • HBO
  • WO
  • PhD

Student backgrounds

  • Dutch
  • International


Scientist Polymer Material Technology

CLS Services is a leading professional recruitment agency, specialised in the recruitment of people with a background in chemistry or life sciences. For our client, Brightlands Materials Center (Geleen, the Netherlands), we are searching for a Scientist Polymer Material Technology.

Job description
As Scientist Polymer Material Technology you are responsible for advanced research in the field of process and material development of thermoplastic polymeric materials. This will in particular be for inhomogeneous materials, reinforced with long or endless fibers (advanced composites). You will contribute to the success of the Brightlands Materials Centre (BMC) in Geleen by defining opportunities, analyzing them, and by developing and/or proposing the most efficient methods to come to new materials technologies. You will analyze application needs and challenges identified by the industry, and translate these into defined research topics.
In the Lightweight Automotive program, you will be involved in research projects in the field of thermoplastic polymer and composite materials, in particular their processing and relation with their structural material behavior. You will use your initiative and knowledge to drive cross-fertilization in the different technologies developed at BMC. You will perform research activities supporting the program, and cooperate with PhD, MSc and BSc students working at the BMC premises or at connected universities.
Typical work activities and responsibilities are:
- Participating in research projects in the field of polymer processing and material development for lightweight automotive (composition, processing, and characterization);
- Developing new consortia / projects in your field of expertise (project acquisition);
- Publishing and presenting your work, both internally and externally;
- Execution and quality of research projects, and communication with customers / partners on scientific progress and project results;
- Identifying gaps in knowledge and expertise needed to support the research program;
- Developing a maintaining a network with academic and industrial partners.

Who we're looking for
You preferably have a PhD degree in mechanical engineering or polymer materials, and you have expertise in polymer melt processing, development and characterization of (reinforced) polymer materials (e.g. thermal & mechanical properties).
Next to that, you have;
- A background in polymeric materials science, preferably in the interaction of processing, composition and mechanical properties of fiber reinforced thermoplastics;
- Knowledge and experience with material development and characterization;
- Experience in the field of physical recycling of thermoplastic polymers and composites is an advantage;
- Project management experience.

Company profile
The heart of Brightlands Materials Center is an evolving ecosystem where scientific excellence, innovative applications and societal challenges come together.
Brightlands Materials Center offers a meeting place at Brightlands Chemelot Campus and close collaboration with a global network of leading companies along the value chain and renowned universities and institutes.
In our shared research programs, where scientists, R&D researchers and students come and work together, we secure application-driven research along the whole chain of knowledge.

The Brightlands Materials Center (BMC) in Geleen, a cooperation of the Province of Limburg and TNO established in March 2015, performs programmatic industrial application driven research in the field of polymeric materials that will provide solutions for the societal challenges of tomorrow. It’s meeting place is the Brightlands Chemelot Campus, with a global network of leading companies along the value chain and renowned universities and institutes.
The research laboratory facilities at the Brightlands Chemelot Campus in Geleen are strongly growing, as well as the group of involved researchers that work together with a variety of industrial partners and actors from the knowledge infrastructure, including other research organizations and universities. The work is typically contained in multi-year and multi-client research and technological development projects, including those within the context of the European Framework Programs.
The TNO Materials Solutions department is the linking pin between the Brightlands Materials Center and the TNO organization, and employs the majority of the professional research staff. The department has a strong track record in the development of innovative nanomaterials, nanostructured coatings and polymer nanocomposites.

Other information
Temporary contract for 6 months. After 6 months you will get a contract by TNO.


Application & Formulation Engineer

CLS Services is a leading professional recruitment agency, specialised in the recruitment of people with a background in chemistry or life sciences. For our client, Cosun Innovation Center (Dinteloord, Netherlands), we are searching for an Application & Formulation Engineer.

Job description
Do you have an affinity for the technical and commercial aspects associated with the development of formulations (f.e. cremes and lotions) and application research? Do you have experience in working with ingredients and do you also have the commercial interest in following market trends and initiating new opportunities? Do you like to organise, are you hands-on and do you enjoy initiating and developing customer contacts on an independent basis? Then this is the job you are looking for!

Due to the increasing focus of Cosun Biobased Products on personal care and home care formulations, Cosun R&D wants to strengthen its R&D team.
You will work on the development of formulations and application research for the personal care and home care markets. You will carry out research into new innovative concepts and you will be responsible for the (further) development of existing and new formulations, in both cases working closely together with (potential) clients. You will test and assess the performance of the formulations. Additionally, you will independently manage contacts with various clients, while also maintaining and expanding your own network. Finally, you will take part in projects and/or research assignments, and continue to acquire the necessary professional knowledge within relevant fields.

Who we're looking for
We are looking for a candidate with a BSc. in product development, chemistry, or a related subject, and a technical/commercial, independent, entrepreneurial, and practical approach. In addition, you have:
- 5+ years of practical work experience in a similar position;
- Working experience in developing formulations;
- Knowledge of applicable legislation, registrations, and databases such as ecotox;
- Good oral and written command of both Dutch and English;
- Excellent communication- and commercial skills, experience with progress monitoring and planning;
- Good organising skills, result-orientation, quality focus and a flexible attitude;
- Initiative, entrepreneurship and ability to work in a team;
- A constant alertness to potential business opportunities.

Company profile
Royal Cosun is an agro-industrial co-operative. It is their ambition to optimally use the vegetable raw materials. Good for the environment, financial return and it responds to the social need for responsible products and processes. They manufacture ingredients for food, non-food applications and the chemical industry.
Cosun Biobased Products offers biobased solutions. Their activities range from development to manufacturing and supply of biobased functional chemicals. Cosun Biobased Products is well placed to take advantage of the upcoming biobased economy with a consistent strategy and the development of innovative biobased chemicals and materials from renewable, vegetable resources. This is achieved by ensuring optimal value creation, no waste (closed loops) and the lowest energy input.
The development of biobased solutions for various markets is an ongoing process.
The present portfolio includes a green antiscalant for various industrial applications, natural fibres used in many different industrial products, special sugars for application in cosmetic and personal care products, organic acids and biobased chemical building blocks and plasticisers.

You will be working in the product development department of Cosun R&D, which is based in the Cosun innovation centre in Dinteloord. Cosun R&D carries out assignments for the various Cosun business groups (Suiker Unie, Aviko, Duynie, Sensus, SVZ, and Cosun Biobased Products). Cosun Biobased Products is also based in the newly build Cosun innovation centre in Dinteloord (NL). Cosun’s ambition is to achieve growth through the development of biobased concepts and products for both the food and non-food sectors. With a clear vision for the future, Cosun Biobased Products is working on the development of innovative biobased chemicals and materials made from renewable, vegetable resources. The product range of Cosun Biobased Products includes, amongst other things, functional additives for use in detergents and personal care products, such as Betafib, which is used in home care and personal care products.

Other information
Contract: Direct contract with client

Chemistry Life Sciences

Scientist Clinical Immunology

CLS Services is a leading professional recruitment agency, specialised in the recruitment of people with a background in chemistry or life sciences. For our client, Janssen Vaccines & Prevention (Leiden, the Netherlands), we are searching for a Scientist Clinical Immunology.

Job description
The main responsibility as a Scientist is to guarantee the correct design and execution of experiments for the development and validation of immunological assays to be used in the analysis of samples from clinical trials. The activities must be executed, documented and reported according to Good Clinical Laboratory Practice (GCLP) quality requirements.
Other responsibilities are:
- Performing experiments on a regular basis to support assay development processes, but also to maintain your technical edge, and to remain aware of the issues and potential areas of improvement in the laboratory;
- Instructing associate and assistant scientist on the scientific fundamentals of the assays which are used in the lab, and to review to the data generated by them;
- The scientific quality of the analysis of clinical trial samples, as well as long term life cycle of the methods;
- Consider the long-term strategies of the project and align your scientific strategy accordingly.

Who we're looking for
The ideal candidate has a PhD in biological/medical sciences with a strong immunology or virology background. You have at least 2-3 years experience within a (bio)pharmaceutical company.
You have extensive, hands-on experience in the development and validation of serology (ELISA, Virus Neutralization Assays etc.) or cell-based assays (ELISPOT, Flow cytometry etc.) according to regulatory standards. You have experience with experimental plans using the “Design of Experiment (DoE)” principles. Recent experience in optimizing serology or cell-based assays and working with PBMCs is an advantage. Also knowledge and/or affinitiy with biostatistics and data analysis will be considerd as a plus.
Additionally, you have experience in working under quality standards such as GCLP, GCP or GMP.
On a personal level, you have good communication skills in English, you are quality minded and you are able to motivate and empower others.
Are you the experienced team player we are looking for?

Company profile
Janssen Vaccines & Prevention is dedicated to bringing meaningful innovation to global health. They focus on the discovery, development, manufacturing and marketing of vaccines and antibodies to protect people world-wide from infectious diseases.

Other information
Contract: Temporary contract with CLS Services. Full time preferred, 32 hours discussable.

Biology Life Sciences