Scientist, Downstream Purification
You will take the DNA our cultures produce and turn it into PDRN. It must be pure, cut to our target range of 20–80 base pairs, and the same from batch to batch.
We welcome recent graduates looking for a job or an internship, and we give priority to those who graduated top of their degree programme or university.
We are running this role in our laboratory in Vietnam. The work is at the bench, on site, and is not remote. If you apply from another country, the form below asks about your right to work in Vietnam.
What you will do
- Develop the extraction and purification steps for DNA from our microbial and plant sources.
- Control depolymerisation so that the fragments fall within our target range.
- Remove protein, endotoxin and other impurities to the levels a medicine needs.
- Set in-process controls and release limits with the analytical team.
- Write the procedures that make the process repeatable.
What you bring
- A degree in biochemistry, biotechnology, chemical engineering or a related field.
- Hands-on experience purifying nucleic acids or proteins by precipitation, filtration or chromatography, from study or from work.
- Careful records.
Nice to have
- Experience scaling a purification process, or transferring one to a manufacturer.
- Experience with tangential flow filtration.
How you can apply
You can apply with the form on this page, or write to our Chief Executive Officer, Marshon Nguyen, on LinkedIn.
Synthena will never ask you for money, for bank details or to install a messaging app while you apply, and our emails come only from synthenapharma.com addresses.
About Synthena Pharmaceuticals
Synthena Pharmaceuticals is a pharmaceutical company founded in Hong Kong in July 2026. We work on one substance, PDRN, and we make it from plant cells and from microbes, never from animal tissue. Our target fragments are 20–80 base pairs, and every result keeps its history: the date, the sample, the instrument and the operator.

