Contract

Manufacturing Technician

Posted on 9/3/2026

Refeyn

Refeyn

51-200 employees

Bench-top mass photometry for single molecules

Compensation Overview

£30k - £36k/yr

Oxford, UK

In Person

Five days on-site per week in Oxford (Littlemore, Trade City).

Bachelor's

Category
Manufacturing & Production Operations (1)

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Requirements
  • A university degree in a relevant discipline or relevant industry experience.
  • Approximately 3 years of relevant industrial operations experience.
  • Experience working in a laboratory environment requiring personal protective equipment and handling lasers and optics.
  • Ability to assemble electronic subsystems, including fault finding such as continuity testing.
  • Experience assembling high-precision or delicate parts, handling optics, and using lasers.
  • Some experience testing high-technology equipment before shipping.
  • Strong assembly skills with attention to detail.
  • Ability to work to strict deadlines.
  • Commitment to continuous improvement and data accuracy.
  • Right to work in the United Kingdom is required.
Responsibilities
  • Assemble and test Mass Photometer instruments.
  • Produce electrical harnesses.
  • Assemble electronic subsystems.
  • Assemble and align optical components.
  • Perform bespoke Final Acceptance Testing routines using documented procedures.
  • Produce equipment according to detailed work instructions, assembly instructions, and documented test routines.
  • Participate in all stages of wider operations and manufacturing processes.
  • Understand, design, and implement lean manufacturing techniques for electronic and optical systems.
  • Work with bills of material, part procurement, and stock holding to support forward planning and smooth operations.
  • Improve operations facilities, tools, and techniques to increase productivity and reduce costs.
  • Document protocols, in-process results, issues, and potential improvements during operations activities.
  • Archive test results and track key performance metrics.
Desired Qualifications
  • Experience with optical alignment using laser systems.
  • Laser safety training for Class 4 laser use.
  • Previous experience assembling and testing scientific instrumentation.

Refeyn specializes in mass photometry, a technique that measures the mass of single molecules in their native, unlabeled state. Its products are compact bench-top instruments coupled with automated software that enables rapid mass analysis from only a few microliters of sample. Researchers can obtain mass distributions in minutes without prior knowledge or labeling. The company differentiates itself through its native-state, label-free approach, user-friendly bench-top systems, and integrated software that streamlines data acquisition and interpretation, making advanced biomolecule analysis accessible to academic labs, research centers, and pharmaceutical companies. Refeyn aims to advance bioanalytics by providing practical mass measurement tools that uncover biomolecular properties and functions with minimal setup and sample requirements.

Company Size

51-200

Company Stage

Series A

Total Funding

$30M

Headquarters

Oxford, United Kingdom

Founded

2018

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Simplify Jobs

Simplify's Take

What believers are saying

  • Refeyn won the Sunday Times 100 Tech ranking in January 2026.
  • Refeyn launched MyMassMP on March 18, 2026 and expanded CRO/CDMO channels.
  • Refeyn reached 1,000-plus publications and opened Waltham HQ, deepening U.S. access.

What critics are saying

  • Thermo Fisher and Bruker can bundle broader proteomics platforms faster than Refeyn.
  • Refeyn still depends on niche adoption; 500 installations by May 2025 stays tiny.
  • If MyMass and TwoMP sales stall, Oxford hardware economics and hiring plans weaken.

What makes Refeyn unique

  • Mass photometry measures single molecules label-free, native-state, using microliters and minutes.
  • Refeyn's 2026 MyMass product simplifies sample-quality checks before cryo-EM, native MS, SPR, BLI.
  • Bio-Techne's June 2026 workflow integrates TwoMP into bispecific-antibody characterization.

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Benefits

Health Insurance

401(k) Company Match

Unlimited Paid Time Off

Family Planning Benefits

Professional Development Budget

Hybrid Work Options

Wellness Program

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

0%
Yahoo Finance
Jun 4th, 2026
Bio-Techne and Refeyn close gap in bispecific antibody characterisation with 4-hour workflow

Bio-Techne and Refeyn have launched an integrated workflow combining icIEF fractionation and mass photometry to characterise bispecific antibodies and biosimilars. The four-hour process pairs Bio-Techne's MauriceFlex imaged capillary isoelectric focusing system with Refeyn's TwoMP mass photometry platform. The workflow enables direct correlation of charge heterogeneity with molecular weight and aggregation at single-molecule resolution, requiring only nanogram-level samples. This addresses a key challenge in characterising bispecific antibodies, whose structural complexity often delays development and increases manufacturing risk. The technology allows researchers to analyse aggregation and size within icIEF-resolved charge variants, providing insights previously inaccessible with standalone methods. The integration aims to reduce reliance on multiple tests and accelerate process development for increasingly complex biologics.

Financial Post
Mar 18th, 2026
Refeyn launches MyMass instrument to simplify sample quality assessment for structural biology.

Refeyn launches MyMass instrument to simplify sample quality assessment for structural biology. GlobeNewswire Published Mar 18, 2026 Article content Compact, all-in-one mass photometer helps researchers verify sample quality before proceeding to cryo-EM, native MS, BLI, SPR, and other costly experiments Article content OXFORD, United Kingdom, March 18, 2026 (GLOBE NEWSWIRE) - Refeyn, developer of pioneering mass photometry technology, announces the launch of MyMass(TM) mass photometer (MyMassMP), a compact instrument designed to answer a critical research question: Is the sample good enough for further analysis? Article content Structure-based drug design and AI-driven therapeutic development are transforming how new medicines are discovered, but depend on high-quality samples. Structural and biophysical workflows, such as cryo-EM, native mass spectrometry (MS), bio-layer interferometry (BLI), and surface plasmon resonance (SPR), are time-consuming and costly, and poor sample quality remains one of the main reasons they fail. MyMassMP gives researchers a fast, accurate assessment of purity, homogeneity, and oligomerization state in solution before committing to resource-intensive experiments. Article content Advertisement 1 Story continues below Article content Built on the same proven technology as Refeyn's TwoMP mass photometer, which is already trusted across leading structural biology and biotherapeutics labs worldwide, MyMassMP brings this quality check capability into a simpler, self-contained benchtop instrument. Featuring an integrated display and computer for onboard data analysis, and dedicated consumables, it offers an intuitive workflow from sample to result. Article content Top Stories Interested in more newsletters? Browse here. Article content "Structural biology and AI-driven drug discovery are moving fast, but they're only as good as the samples that drive them. MyMass directly addresses that challenge and marks a significant step forward for Refeyn, putting the power of mass photometry within reach of more researchers than ever before," said Gerry Mackay, Refeyn CEO. Article content Fiona Coats, Chief Product and Marketing Officer at Refeyn, said: "In recent years, our users have consistently shown us how valuable mass photometry is for quickly assessing sample quality before committing to more complex experiments. With MyMassMP, we're making this capability even more accessible - empowering researchers to confidently answer a simple but critical question: Are my samples ready?" Article content Advertisement 2 Story continues below Article content About Refeyn Article content Refeyn (www.refeyn.com) specializes in the development, production, and distribution of mass photometry for industry and academia. Enabling accurate mass measurement of single molecules in their native state, and without labels, Refeyn's products deliver crucial analytics faster and use less sample than conventional methods. The company's vision is to accelerate discovery through innovation, empowering the latest scientific breakthroughs in basic research and transforming biotherapeutic development and manufacturing. Article content Advertisement 1 This advertisement has not loaded yet.

PharmiWeb
May 7th, 2025
Major Mass Photometry Milestone Achieved By Refeyn With 500Th Installation Globally

Over 1,000 scientific citations highlight the unique bioanalytical workflow capabilities of mass photometry systems now installed in 30+ countries. Refeyn’s TwoMP mass photometer and MassFluidix HC system newly installed at the University of Copenhagen in action with Dr. Anni Kumari. For a high-resolution image, please contact [email protected]

Taylor & Francis
Dec 4th, 2024
Biotech bi-weekly: New bioink for light-based bioprinting, evolving software for drug discovery, mass photometry and multiomics data analysis

Refeyn (Oxford, UK), a mass photometry technology company, has developed a custom software platform providing automated analysis of large mass photometry data, called StreamlineMP.

PharmiWeb
Nov 26th, 2024
Refeyn Launches Software Platform To Automate Mass Photometry Analysis Workflows

Refeyn launches software platform to automate mass photometry analysis workflows. New StreamlineMP software suite offers specialized data analysis modules to standardize and speed up workflows in key bioanalytical applications