Associate Technical Specialist - Stem Cell or Cell Culture

Req ID:  185273

Saffron Walden, GB, CB10 1XL

For 75 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform. In return, we’ll help you build a career that you can feel passionate about.

The Role



Do you have experience working in a lab with stem cells or cell culture, passaging and accurate cell counts?


Are you looking for a role where you can develop and learn in?


Do you want to join a global scientific company that truly makes a difference to health?


Due to enhanced client demand, we are looking for an experienced stem cell technician or a cell culture technician to join our cell cultures team based in Saffron Walden at Chesterford Research Park. You will be working alongside a team of passionate and experienced scientists and technicians who are looking to develop lifesaving medicines for patients' worldwide.

What You'll Be Doing



For stem cells, in this laboratory-based role, you will join our established team of stem cell experts, supplying and quality controlling cells for assays and characterisation to aid our clients' drug discovery programs.

This is a hands-on technical role, where you'll be responsible for the delivery and maintenance of quality cell lines to be used in further experiments.

You must possess a strong attention to detail with ability to work meticulously and with minimal mistakes.

As a Senior Technician, you must also be able to recognise any potential issues that could affect successful culture of cell lines and be able to actively minimise and prevent contamination and infection.


For cell culture, you will produce high quality cell culture, cell banking, or GxP cell production, from within a dedicated team.   

You will be able to collaborate and troubleshoot with a range of cross-disciplinary teams, supplying cells for a wide array of cellular assay formats and helping to advance client projects covering a range of therapeutic areas including: oncology, inflammation, cardiovascular, metabolism and CNS diseases.

As well as providing support locally, the Technical Specialist role will involve cross-site collaboration, helping to establish and support Cell Culture teams at Charles River sites across the globe. 

  • Culturing and troubleshooting a significant number (30+) of recombinant, primary or stem cell lines in parallel
  • Providing cells for High Throughput Screening and contemporary cryopreservation methods consistently and to a high level of quality
  • Keeping up to date with current cell culture methods and applying process improvements as required


What We Offer You


  • A very comprehensive benefits package from day one, including a large pension contribution, private medical, private dental, critical illness, and more!
  • The opportunity to get industry standard training and experience.
  • The chance to work with state of the art equipment in well resourced laboratories.
  • Global opportunities and strong career progression.
  • To be able make a difference to health and well being of people.
  • Flexible working opportunities.

Skills and Experience



  • Significant practical experience in culturing and differentiation of hES and iPS cells, ideally with a background in neurosciences
  • Be able to demonstrate outstanding aseptic technique, an excellent attention to detail, and a positive can-do attitude.
  • Candidates with demonstrated expertise in isolation and culturing of primary cells, recombinant cell line generation or preparation of cell lines for high throughput screening may also be considered for this role.
  • Most importantly, you will have a passion for seeing the results of your work influencing ongoing drug discovery programs.
  • Candidates who would be willing to consider a non-traditional working pattern are welcomed.
  • Candidates must show proof of HepB vaccination as a prerequisite to work with human samples.
  • Significant experience with cell culture technology development and implementation.
  • Ability to manage and balance the needs of several simultaneous high-throughput projects.
  • Knowledge of molecular biology and cell line generation experience in order to provide best practice to client cell line generation projects a distinct advantage.
  • Awareness of modern biological safety requirements of tissue culture facilities and methods of avoiding contamination.




  • BSc in relevant discipline.
  • Experience may be substituted for education.


About Discovery
Discovery from Charles River is industry-proven in the successful development of novel therapies, with over 350 patents and 80 preclinical drug candidates delivered to our sponsors in the past 17 years. Backed by more than 650 scientists, our comprehensive, integrated portfolio employs the latest technology and platforms to provide chemistry, biology, and pharmacology services that support clients from the earliest stages of hit identification all the way through to IND. Our client-focused, collaborative approach creates true partnerships that anticipate challenges, overcome obstacles, and move us forward together on the journey of getting new drugs to market.


About Charles River
Charles River is an early-stage contract research organization (CRO). We have built upon our foundation of laboratory animal medicine and science to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, to support clients from target identification through preclinical development. Charles River also provides a suite of products and services to support our clients’ clinical laboratory testing needs and manufacturing activities. Utilizing this broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness to increase speed to market.


With over 20,000 employees within 110 facilities in over 20 countries around the globe, we are strategically positioned to coordinate worldwide resources and apply multidisciplinary perspectives in resolving our client’s unique challenges. Our client base includes global pharmaceutical companies, biotechnology companies, government agencies and hospitals and academic institutions around the world. 


At Charles River, we are passionate about our role in improving the quality of people’s lives. Our mission, our excellent science and our strong sense of purpose guide us in all that we do, and we approach each day with the knowledge that our work helps to improve the health and well-being of many across the globe. We have proudly supported the development of 86% of the drugs approved by the FDA in 2021.


At Charles River Laboratories, we recognize and recruit all talent. We are a company committed to the principle of diversity and inclusion and work daily in this direction.