Senior C# Software Engineer – Semiconductor Metrology

Senior C# Software Engineer – Semiconductor Metrology

£58,000 – £65,000 + EMI Share Options + Private Healthcare + Pension

Are you an experienced C# Software Engineer who enjoys solving complex engineering problems where software directly controls real-world hardware?

We're looking for a Senior C# Software Engineer to help develop the next generation of semiconductor metrology and inspection systems. You'll work on software that controls high-precision motion systems, sensors, data acquisition platforms and advanced measurement technology used by leading semiconductor manufacturers worldwide.

This is a technical leadership role where you'll influence software architecture, mentor developers, and work closely with engineers and scientists developing technology operating at the leading edge of semiconductor innovation.

If you enjoy building high-performance software for complex electromechanical systems rather than websites and business applications, we'd love to hear from you.

What you'll be doing

Designing and developing high-performance C# applications for advanced semiconductor metrology systems

Creating software that controls precision motion platforms, sensors, actuators and measurement hardware

Supporting the evolution of software architecture, design standards and engineering best practice

Mentoring developers and helping grow capability across the software team

Collaborating with systems engineers, physicists, software architects and technical leaders

Leading sprint planning, estimation and delivery activities

Managing dependencies across software, hardware, LabVIEW and data analysis teams

Supporting integration, verification and release activities for customer-facing systems

Facilitating technical discussions and helping resolve complex engineering challenges

Remaining hands-on with development while contributing technical leadership across the team

We're particularly interested in people with experience in:

C# .NET Development

Industrial Automation

Precision Motion Control

Machine Control Software

Scientific Instrumentation

Semiconductor Equipment

Metrology Systems

Robotics and Automation

Real-Time Measurement Systems

High-Precision Engineering Environments

Essential experience

5+ years of commercial C# software development experience

Developing production-grade software for engineering, automation or industrial systems

Strong understanding of C# .NET architecture and software design patterns

Experience with WPF or similar desktop UI frameworks

Multithreaded application development and concurrent processing

Agile software delivery and sprint-based development

Software quality processes including integration testing and controlled release management

Working with requirement traceability, design reviews and issue tracking platforms such as Jira

Strong communication skills with both technical and non-technical stakeholders

Experience mentoring, coaching or providing technical leadership to other engineers

Advanced AI capability

Nice to have

Semiconductor inspection or semiconductor manufacturing equipment

Atomic Force Microscopy (AFM)

Scientific instrumentation or metrology systems

Motion controllers, piezo actuators and high-resolution sensing technologies

Machine vision or image analysis systems

SCADA, HMI or Industrial IoT platforms

Python, C++ or other engineering-focused programming languages

TCP/IP networking and distributed systems

Cleanroom environments, regulated industries or functional safety standards

Qualifications

Degree in Computer Science, Software Engineering, Electronics Engineering or a related technical discipline

or

Equivalent commercial experience developing complex engineering software systems

Why join Infinitesima?

Infinitesima develops advanced Atomic Force Microscopy (AFM) technology that enables the next generation of semiconductor devices.

Our systems combine precision engineering, advanced physics, software and data science to solve measurement challenges at nanometre scale. As we continue to scale internationally, software plays a critical role in how our systems perform, communicate and deliver value to customers.

You'll join a highly skilled team of engineers and scientists building technology used to support some of the world's most advanced semiconductor manufacturing environments.

This is a genuinely rare opportunity to combine C# software engineering, technical leadership and cutting-edge hardware development in one role.

Our strength lies in the varied perspectives that come from different cultures, experiences, and identities. We believe that true innovation is fuelled by collaboration, locally and globally. We strive to foster an environment where everyone can contribute meaningfully and thrive. If you require adjustments to take part in the recruitment process, please let us know, we'll do our best to support you.

A note on how we run interviews:

We use AI only to transcribe our interviews so we can focus fully on you instead of scribbling notes. The AI does not take part in any decision making at any stage. All hiring decisions are made by real humans based on the conversation we have with you.

Location and work pattern:

All of our new UK team members are asked to work on site here at Abingdon during their first three months with us. We offer flexible, hybrid working where possible upon completion of probation.

Note to recruitment agencies: Infinitesima Ltd only works with approved agencies and does not accept unsolicited agency CVs. Please do not submit candidate details in response to this advert, or to any Infinitesima Ltd employees. Infinitesima Ltd is not responsible for any fees related to unsolicited CVs.