The team
Cosylab is home to many different types of people, working in our diverse departments, both technical and non-technical.
As an example, Cosylab is home to engineers, physicists, chemists and computer scientists, as well as professionals from various social science fields. We even have one medical doctor! In total, there are more than 200 employees in 7 locations around the world (Slovenia, U.S.A, Switzerland, Sweden, China, Ukraine and Japan). Working for Cosylab therefore means that you are a part of a dynamic, international team!
When we work on the various types of our projects, we use the following technologies: EPICS, LabVIEW, C, C ++, Java, Python, FPGA, WinCC OA, Qt, CSS, Tango, OPC-UA, ZeroMQ, OMG DDS and many others more.
Why join Cosylab?
ENGINEERING PUSHED TO ITS LIMITS
HELP US DESTROY CANCER CELLS
INTENSIVE LEARNING CULTURE
A GENUINE LONG-LASTING RELATIONSHIP
PERKS AND BENEFITS
THE COSY CULTURE
Would you enjoy building new cutting-edge scientific facilities? As an engineer and a software developer you will be working on particle accelerators (CERN, SLAC, ESS, FAIR), telescopes (ALMA, ILT), fusion reactors (ITER) and other projects from the scientific field. At Cosylab, we also have a dedicated team working on space mission and ground processes control software (ESA).
You can also expect to work on challenging and complex projects which need a lot of ambition and brain-power. We can also give you opportunities to relocate and work on-site for shorter or longer periods of time (6 months or more). We know how large scientific labs work and we know how accelerators work – and you can help us become even more successful!
You will be a part of Cosylab’s team of top engineers who are working on the most advanced medical devices for fighting cancer.
We are responsible for all aspects of the product lifecycle. Depending on your background and interests, you can work on system design and architecture, software and hardware engineering, verification and validation procedures or you can help prepare and execute an installation.
By joining Cosylab, you will work on a wide array of interesting medical projects with tremendous impact on society and the well-being of people.
We offer plenty of opportunities for personal growth and continuous career development combined with a competitive and periodically updated salary tailored to your skills, experiences, and results. Career reviews and further planning with half-year interviews is conducted with your supervisor and mentor.
At Cosylab we also organize regular in-house and external training sessions and have a team of international professionals eager to help you grow.
Working at Cosylab is also an excellent opportunity to discover real teamwork. We are more than just co-workers, proud to work together and there are many occasions to celebrate common company successes.
On Fridays, we like to grab an after-work drink and spend time together and we even hang out together in nature engaging in all kinds of sports.
Because we are aware that Cosylab is only as great as its employees, we offer a good work environment with flexible working hours and the possibility of occasional remote work in interesting places around the world. There are also lots of recreational, after-work activities and daily in-house food and refreshments.
We enjoy life with Monday pancakes, taking a short break by having a massage, playing table football or ping-pong. We also love our team buildings, CosyFamily Picnics, New Year parties and other informal gatherings.
By fostering the idea of equality, everyone at Cosylab has the right to express their opinions and are encouraged to share them openly and often.
The Cosylab culture can be simply described, from the company’s very beginnings, by our four cornerstone values: “Think bold, Act modestly, Work hard and Enjoy life”.
Cosylab culture
Think Bold
- Having really sincere and open discussions with colleagues and customers.
- Thinking without limitations. This encouragement to be creative allows us to challenge existing solutions, processes, methods.
- Constantly trying to improve what we do and how we do it. We love challenges.

Act Modestly
- Accepting and being aware of personal short-comings and actively listening to the ideas of others.
- Having no ego that dominates those around us.
- Encouraging team work because we know that we can rely on those around us.

Work Hard
- Putting in the extra effort to make sure the job gets done.
- Accepting the responsibility assigned to us.
- Taking pride in our work and ourselves.

Enjoy Life
- Appreciating that flexible working hours helps us to maintain a healthy work-life balance.
- Enjoying the friendly and relaxed atmosphere at work with smiles and less stress.
- Relaxing and reenergizing at work with the wide spectrum of different perks Cosylab offers, including team buildings, therapeutic massages and other sport activities.

Cosylab in numbers
34
The average age of our employees.
95
Percentage of employees who feel proud to be part of Cosylab.
2015
The year that Cosylab won the Best Employer award.
16
Number of countries our employees come from.
30
Number of active students
10+
The number of different sports activities we offer.
What makes us unique?

I believe our work brings cutting edge research into real life. It’s incredible that treating cancer, looking at black holes and creating the Sun in a lab is in our job descriptions.
Kristjan
Chief Scientific Officer
Employee at Cosylab since 2018

For 20 years I did research, enjoying scientific and technical challenges and getting to know people from all around the world. My transition to Cosylab was incredibly smooth and it allowed me to remain in the scientific environment while enjoying working with great people.
Diego
Head of Space R&D
Employee at Cosylab since 2017

I'm proud of the fact that we put a lot of attention on customer relationships. We work together with our customers and they see us as part of their teams. We connect as people and often this evolves into true friendships.
Luka
Project Leader
Employee at Cosylab since 2009

I like working closely with customers, when our collaborations transcend a mere exchange of requirements and products and we become "co-workers" for a while. I am really happy with some of the relationships I have built in this way and enjoy the opportunities to work with people in different capacities.
Ivana
Control Systems Engineer, Enthusiastic onsiter :)
Employee at Cosylab since 2016

Working at Cosylab is a constant learning experience. We have regular lectures on many different topics. Cosylab also supported me when I wanted to attend workshops and conferences so that I could develop my career.
Rok
Head of IT
Employee at Cosylab since 2013

What I am proud of is that our customers see our people as our most important asset. We highly value our customers' trust and we try hard to build genuine, long-lasting relationships by recognizing our customers' needs and delivering quality work.
Ivana
Project Manager
Employee at Cosylab since 2015

Since my early life I have been intrigued by science, which is what led me to study physics. By working for Cosylab I can use my knowledge and expertise to contribute to projects that help us better understand our world. At the same time I take great pride and pleasure in working with smart and talented people all over the world, be it my co-workers or our customers.
Janos
Project Leader
Employee at Cosylab since 2017
Video
Your recruitment journey
Prompt Reply
We will review your application in 48 hours and get back to you as soon as possible.
Let’s Meet
Let`s get to know each other and see whether our expectations are a match. We are interested in your skills, ambitions and your curiosity about big science.
Technical Test
You will be applying your technical skills on concrete tasks and also gain new knowledge about our work and industry.
Job Offer
At this stage, you will be offered a competitive salary tailored to your skills and experience.
Open Positions
Bay Area, California, US
Ljubljana, Slovenia
Aargau, Switzerland
Aargau, Switzerland
Ljubljana, Slovenia
Ljubljana, Slovenia
Cosylab
”I try to give people what I wanted for myself when I was in their place: a good job, freedom of choice, interesting work full of challenges and a mission to contribute to society’s progress and humanity.”
Mark Pleško
CEO @ Cosylab