Refeyn is developing mass photometry; a new technology for the analysis of biomolecules that measures the mass of single molecules with light. Refeyn spun out the University of Oxford’s Department of Chemistry in 2018 and established Refeyn Inc as US subsidiary in 2019. Currently headquartered in Portland (OR) and has a Demo & Applications lab in Boston. The Refeyn group is uniquely positioned for rapid growth worldwide.

We have a great team, significant funding and a truly global ambition – all of which position us for rapid growth. Joining at this stage in the company’s development represents the opportunity to work on a new and innovative product offering, and to grow with the company as it progresses.

The Role:

We are looking for a successful sales professional with 2+ years sales experience ideally in microscopy, capital equipment or instrumentation based in Midwest US (home working with up 50% travel). 

Responsible for identifying potential customers, proof-of-concept instrument demonstrations, the analysis of customer samples and for follow up with the customer after the proof of concept study is completed to purchase. Consolidating customer feedback and requirements to guide the efforts of the R&D team and further mature the technology and the portfolio. The candidate will also represent the company at workshops, trade-shows, conferences and various digital events around the world.

The successful candidate will work as part of the Sales & Marketing team and will engage with customers throughout the sales cycle based on knowledge of both the applications and the technology.

Technical Sales

  • Identifying potential customers and educating them about mass photometry
  • Managing the sales process from initial contact to close
  • Task planning: being able to plan the demonstration/sample jobs, coordinate with customers
  • Demonstrating the instrumentation and technology (including on-site in customer labs)
  • Analyzing customer samples, create report and discuss results with future customers
  • Supporting workshops, trade shows, and conferences
  • Mentoring more junior team members
  • Negotiate pricing and create quotation for sales opportunities
  • Update and maintain CRM 

Product Marketing

  • Consolidate and prioritise customer use cases and requirements
  • Provide proof-material and best-known methods for priority use cases
  • Give presentations at conferences (talk, poster)


  • Competitive salary, proportionate to experience
  • Company contribution to 401(k)
  • 20 days' PTO, 5 days’ sick leave
  • Comprehensive employee insurance including private medical, life assurance, critical illness and income protection

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