Who we are
Exactmer is a life science start-up dedicated to creating technology for producing precision polymeric molecules with our patented Nanostar Sieving Technology. Our mission is to enable manufacture of exquisite synthetic and biological therapeutic polymers that play a crucial role in improving patient’s quality of life. From oligonucleotides to mono-disperse polyethylene glycols (PEGs), ADC linkers, peptides and beyond, we are working to improve the future of biomedicine.
We are a team of around 25 people, London-based, searching for a self-starting, dynamic, flexible and committed individual to join our team. We are currently seeking a skilled Senior Research Engineer / Research Engineer to join our Membrane and Purification Team and have a key role in the development of our innovative products.
Responsibilities
As a Senior Research Engineer at Exactmer, you will drive the development, optimisation, and scale-up of Exactmer’s membrane technology to enable Nanostar Sieving. You will work on all stages of membrane R&D, leading experimental design, developing new membranes, and improving the performance of existing systems. This work will be directly transferred into manufacturing at Exactmer’s Advanced Membrane Manufacturing Suite. This is a hands-on, fast-paced role where creative engineering, scientific rigour, and problem-solving are essential.
Your key responsibilities at Exactmer will be:
* Lead the design, development, and optimisation of new membrane materials and modules, including polymer selection, surface modification, and structural design.
* Improve existing membrane manufacturing processes through troubleshooting, optimisation, and developing operational strategies.
* Scale-up membrane manufacture and support the technology transfer of new products into manufacturing.
* Mentor and support junior researchers, fostering a collaborative and innovative team environment.
* Adhere to Exactmer’s quality standards, best practices, and safety.
* Excellent documentation of experimental procedures, results and conclusions.
Skills/Experience
* PhD or MSc/MEng in Chemical Engineering, Material Science, or a related field
* Technical expertise in membrane separations (e.g., OSN, UF/DF, NF, membrane characterisation, process modelling).
* Strong laboratory experience preferably of membrane manufacturing.
* Experience with process development in a laboratory or industrial setting.
* A desire to learn fast and tackle many different aspects of creating a new technology and new products.
* Excellent communication skills, both written and verbal.
* Strong problem-solving skills.
Why Exactmer?
* Be part of a cutting-edge life science start-up at the forefront of precision polymer development.
* Directly contribute to the development of a platform technology aiming to manufacture advanced therapeutics to improve patient quality of life.
* Join a collaborative interdisciplinary team of scientists and engineers with a culture of developing ideas, problem solving, and innovation.
* Grow and develop your career with access to specialised training, workshops, and cross-functional learning and development.
* Competitive compensation and benefits.
Contact Us
Interested candidates are invited to submit their CV and cover letter to info1@exactmer.com. Applications will be continuously reviewed, and we encourage you to apply before Friday 19th Dec 2025.