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Junior Physicist/Software Developer


Software is an essential weapon in the fight against cancer and at RaySearch we are passionate about innovating radiation therapy. Joining us as a junior physicist, you get the opportunity to use your motivation and educational background to make a vital difference.



About the position

As a junior physicist, you will work in an agile team with senior and junior physicists, application developers and test specialists, all dedicated to designing and evolving the cutting-edge treatment planning system RayStation.  

Our colleague Elin started after her graduation two years ago and shares her experience:

“It’s very exciting to be at a workplace that always offers new challenges. You can see that the people working here really like it and all colleagues are very friendly and helpful”


We know there is a lot to learn

You will get a solid introduction and as long as you have a great motivation to learn, your colleagues will gladly help you with all of your questions. You will get into the role gradually during the first year. 

The physics group is a part of the RaySearch development department and is responsible for the physics algorithms and functionality for photon, electron, proton and carbon ion treatments. You will participate in all steps of the development process, including analysis, software design, implementation and testing. You will implement physics algorithms in C++ and the application layers in C#/.NET. Over time you will also collaborate with customers and partners and if you are interested there are opportunities to be involved in more complex sales processes.

Your profile

You have good analytical skills and a creative mindset. When working on a problem, you formulate the right questions, identify what is important and work in a goal-oriented way towards a solution. You like working in teams and take responsibility as well as contribute to a positive atmosphere. You take pride in delivering high-quality results with efficiency.

Experience and skills:

  • MSc in engineering physics or similar, with results and selected courses demonstrating a deep physics knowledge
  • Interest in programming and basic programming skills
  • Fluency in English

It is an advantage, but not required, if you  have knowledge in Swedish, 1-3 years of academic or industry experience (with focus on solving physics modeling problems or software development, particularly in C++ and or/C# ) and if you have an understanding of ionizing radiation.

Working at RaySearch

RaySearch grows and today we are almost 300 colleagues. We have a vision, we want to see a world where cancer is conquered, and our contribution is to fight cancer with code. At RaySearch we are proud to go to work every day because together we get to create innovative software products that we know makes a vital difference in the whole world. Our headquarters at Sveavägen 44 in central Stockholm are the heart of our growing R&D department with 150 of the industry's most skillful engineers, developers, researchers, machine learning experts and physicists. Through agile teams, creativity and knowledge-sharing, we develop the advanced treatment planning system RayStation and oncology information system RayCare. We believe that it’s crucial that our employees love what they do for us to keep growing. We encourage a healthy work-life balance because we know that’s the only way to long-term success. We believe in investing in our people and offer great staff benefits, a modern office environment, flexible hours and regular afterwork and activities.


The selection and interviewing process will start the 14:th of January and then be ongoing.  You are welcome to send your application in Swedish or English by the application form below. We do not accept applications by e-mail but if you have any questions regarding the position please contact Erik Engwall.