I'm considering taking a postdoc after 5 years as an analytical chemist in the pharma industry (small molecule). This may seem backwards and counter-productive due to the massive pay cut but here's my reasoning:
I am extremely unhappy in my current role; I've been pigeon-holed into developing methods for a rather niche technique that isn't versatile and incredibly uninteresting. I've also been pushed into pure project management and doing little to no science.
When searching and interviewing for roles I want, it has been highlighted that, while I have industry experience, I am not experienced enough in mass spectrometry or large molecule work, which I do not have the opportunity to train at my current job. I've been searching for 6 months now with several interviews that all came back with the same feedback about my lack of mass spectrometry or biomolecule experience.
A postdoc position is likely available to me through my personal network and it would be an intensive way to train in mass spectrometry and large molecule analysis (as well as some data science and bioinformatics). There is a grad student who currently handles most of the technical aspects of the instrumentation and sample prep (he'll be my immediate mentor) while the PI is more on the bioinformatics and publication side of things. I will be asked to help conduct analysis, maintain the instruments, and write papers (the PI has mountains of data but no time or desire to write the papers).
My logic is that, with 2 years of focused mass spectrometry training and 5 years in industry, I would be a more attractive candidate and have more options in terms of where I might land a job (different industries, possible academic facilities staff, or national labs staff). I would also have materials for presentation that highlight my competency whereas right now, I only have my PhD work (in a different technique) and a generic industry presentation (cannot use company data so I can only give lectures on general topics in pharma).
My long term goal is to shift my expertise to mass spectrometry and either join a national lab, core facility, or build up an analytical department at a startup. Mass spectrometry is incredibly versatile and is a critical hard skill in pharma, biotech, food science, environmental, and other key industries.
Am I thinking about this correctly? Or am I making a mistake be treating the postdoc as a training opportunity and stepping stone?