Mass Photometry Software Engineer

Refeyn; Oxford; Hybrid; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Hybrid working

25 days annual leave

Pension contribution (up to 7%)

Private health insurance

Cycle to Work

Annual bonus

Job summary

Refeyn, a UK-based mass photometry company, is seeking a software engineer to join its 10-person software team in a hybrid role in Oxford. You will participate across the full development lifecycle, building desktop and embedded UIs and automating instrument control, calibration, and data analysis.

Collaboration with product, UX/UI, and R&D is central to the role. The ideal candidate has strong Python OOP skills and experience with Rust or C++, GUI development (Qt), and familiarity with

Qualifications

• Proficient in Python (OOP) and either Rust or C++.
• Experience with GUI development using Qt tools.
• Familiarity with instrument or embedded systems.
• Experience with scientific computing and ML libraries (NumPy, SciPy, PyTorch, Matplotlib).
• Experience with CI/CD and Git version control.
• Experience with Jira and Confluence in hybrid agile/waterfall environments.
• Familiarity with testing and code-quality tools such as pytest, mypy, and pylint.

Responsibilities

• Support the full software development lifecycle: planning, design, development, testing, deployment, and continuous improvement.
• Build and enhance desktop and embedded UIs tightly integrated with system logic.
• Develop automated instrument control, calibration routines, and failure‑mode detection.
• Create tools for analysing measurement data and interpreting results statistically.
• Investigate, debug, and resolve complex software and system issues.
• Manage source code and branching strategy, and review teammates' pull requests.
• Collaborate across engineering and with stakeholders to translate requirements into reliable solutions.

Skills

Python OOP

Rust

C++

Qt GUI

Embedded systems

NumPy/SciPy

PyTorch

Matplotlib

CI/CD

GitHub Actions

Jira

Confluence

pytest

mypy

pylint

Tools

Qt

PySide6

QtQuick/QML

Job description

Refeyn, a UK-based mass photometry company, is seeking a software engineer to join its 10-person software team in a hybrid role in Oxford. You will participate across the full development lifecycle, building desktop and embedded UIs and automating instrument control, calibration, and data analysis.

Collaboration with product, UX/UI, and R&D is central to the role. The ideal candidate has strong Python OOP skills and experience with Rust or C++, GUI development (Qt), and familiarity with