Veldhoven, NL

C++ and Python software engineers – Metrology


At ASML, we manufacture the complex lithography machines used by chipmakers to produce microchips, leading the way to better and cheaper CPUs, GPUs and memory. Did you know that the latest smartphones like the iPhone 12, fastest laptops and smartest cars are all available thanks to our technology?

To keep pace with market demands, our lithography machines are getting faster, and chip patterns are getting smaller. At the Metrology Software department, we focus on the field of lithography metrology – metrology meaning ‘the science of measuring’. We compensate for sub-nanometer inaccuracies that inevitably creep in due to material imperfections, temperature fluctuations, and/or atmospheric pressure changes.
Metrology software coordinates the behavior of powerful mechatronic modules to enableASML’s machines to position a silicon wafer in less than a second, with nanometer accuracy! For example, one such module accelerates at 7g, that’s faster than a fighter jet!

Scanner metrology software is a unique field for software engineers looking to combine their problem-solving skills, interest in physics and programming expertise in one of the world’s most innovative industries.

Job Mission

Our metrology software measures and processes the physical imperfections, and calculates how our hardware should behave to address these imperfections, coordinating the many, physical components to maximize system performance.

Job Description

You will work on a range of physics-based challenges that our lithography machines face, collaborating with our functional metrology engineers. They create models of machine processes, which predict how our hardware should behave to ensure our machines run with speed and accuracy.

As a software engineer, you will design and implement real-time computational models in C++ or Python, translating and then fitting your models into the scanner’s wider software architecture.

To achieve this, you use data from the machine’s sensors as the input for the metrology models that control the many actuators in the system. These metrology models then help our machines meet their performance requirements from both a time and accuracy perspective. Code maintainability is another key area, where you must work across a huge code base, while also guaranteeing the future of our software.

The work at ASML is challenging – you will often have strict deadlines, dozens of stakeholders, millions of lines of C/C++ and Python code and hundreds of undocumented use cases and behaviors – but it is also exciting. You have to solve problems no other company has to solve and it’s up to you to help push these unique machines right to the edge of their physical limits.

You will be part of a multi-disciplined and friendly team, always available to provide guidance or a second opinion. Whatever you need, your colleagues are there to support you, whether helping directly with a problem or giving you the space to experiment to find a new solution.


BSc or MSc education level
Background in computer science or software engineering


– C/C++ or Python programming with strong knowledge of architectural patterns and object-oriented design and implementation;
– Experience with the agile/scaled agile (SAFe) way of working;
– Awareness of test-driven development and behavior-driven development;
– Knowledge of Julia, CI/CD, Boost, and/or MATLAB is a plus.

We would also welcome experience with:

– Machine development or embedded systems development;
– Sensors and/or control loops;
– Digital signal processors;
– Robotics;
– Automotive
– Machine learning.

Personal skills

ASML is a highly dynamic environment, which requires a:

– Flexible, problem-solving mindset where you can work in a complex, dynamic environment with changing requirements;
– Love of learning and a desire to learn more about complex and specialist subjects, especially physics and mathematics, and a willingness to accept that it can take a while to get up to speed.

Context of the position

We have several positions within the Metrology department.
This department is part of the sector Development & Engineering.

Other information

This is a general vacancy description (at our recruitment department, we call this a ‘pipeline’). Based on your resume and motivation letter, we will decide which open position matches your background and skillset.If we find a match, your details will be removed from this specific pipeline, which will generate an automated rejection message. Separately, we will send you a message about the specific position to which we allocated your application. From here, we’ll continue the hiring process.

About ASML

We make machines that make chips; the hearts of the devices that keep us informed, entertained and safe. Devices that improve our quality of life and help to tackle the world’s toughest problems. We build some of the most amazing machines that you will ever see, and the software to run them. Never satisfied, we measure our performance in units that begin with pico or nano.  To push technology further and print microchip features that are finer, we are looking for the world's best software engineers. More about ASML