Head of Regional Sales – North America (PT Domain)

Head of Regional Sales – North America (PT Domain)

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About the role 

At Coslyab we are bringing next-generation particle treatment planning software to the North American market. As Head of Regional Sales – North America, you will lead the commercial growth of PlanOne by acquiring new customers, expanding business within existing proton therapy centers, and building long-term relationships with clinical and executive stakeholders. Working closely with our Clinical, Product, and Customer Success teams, you will play a key role in establishing Cosylab’s commercial presence and driving the adoption of innovative technology that advances cancer treatment.

For easier and more effective collaboration with our HQ team located in Ljubljana, we welcome candidates from the East Coast of the United States to apply for this job.

We are an equal-opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.

Key tasks and responsibilities

• Own commercial performance and execute the sales strategy for the North American region.
• Generate, qualify, and convert new business opportunities.
• Manage the full sales cycle, from lead generation to contract signature.
• Build and maintain relationships with radiaiton oncology centers, key opinion leaders, and other strategic stakeholders.
• Deliver compelling customer presentations and product demonstrations.
• Collaborate with Clinical, Product, Marketing, and Customer Success teams to drive commercial success.
• Maintain an accurate sales pipeline, forecasts, and CRM records.
• Monitor market trends, customer needs, and competitor activity to provide commercial insights.
• Represent Cosylab at industry conferences and events, (AAPM, ASTRO, and PTCOG).

All of the above will help you meet your annual sales targets (e.g., revenue per segment, generation of qualified pipeline, customer satisfaction score…).

Required qualifications and skills

• Minimum of 5 years of successful sales experience in radiation and/or proton therapy solutions and 10+ working experience in the B2B market.
• Proven track record of meeting and exceeding sales targets in a complex, technical sales environment.
• A strong regional network of contacts within the radiation and/or proton therapy industry.
• Experience selling complex software, medical devices, or treatment planning solutions.
• Ability to understand and articulate complex technical concepts to non-technical stakeholders.
• Excellent communication, negotiation, and presentation skills.
• Self-motivated, results-driven, and able to work independently.
• Willingness to travel as needed.

Education

• B.Sc. in a relevant field (e.g., business, engineering).
• Fluency in spoken and written English.

Bonus points if you have

• Professional background in Medical Physics, Medical Dosimetry or Oncology.

Please note: In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.  

What we offer 

• Plenty of opportunities for personal and professional growth combined with a competitive and periodically updated salary tailored to your skills, experiences, and results.
• A work environment with flexible working hours and a hybrid work model.
• Interesting work full of challenges in an international working environment.
• High-impact learning culture: regular in-house and external training sessions and a team of international professionals eager to help you grow.
• Casual atmosphere with friendly faces where you can completely be yourself.

Why join Cosylab?

We are the leading software solutions provider for the world’s most complex, precise, and advanced systems, such as particle accelerators, large telescopes, fusion reactors, innovative medical devices, and cancer treatment systems. Our technology enables organizations to make scientific discoveries, offer the most cutting-edge cancer treatments, innovate in healthcare, and introduce clean fusion energy to future energy markets.

Working at Cosylab is a great opportunity to discover genuine teamwork and collaborate with experts from the world’s most important research projects. We value and strive to achieve good interpersonal relationships and try to ensure the pleasant well-being of all our employees. We are friendly, proud to work together, and able to develop just about any solution we put our minds to.

Cosylab culture

Our values

We offer the best solutions for ambitious businesses.

Think bold

We deliver exceptional solutions through courageous thinking, open communication and the drive to continuously improve. 

Be modest

We set our egos aside in actively listening, respecting one another, and embracing the diversity of experience and perspective across the company.

Work smart

We know we get more accomplished by working together, being accountable, focusing our efforts and going the extra mile.

Enjoy life

We prioritize balance and positivity, nurturing personal wellness and celebrating successes.

Do good

We support one another and are passionate about solving the difficult problems that ultimately help make the world a better place.

Discover our work environment

CONTACT US

Apply for Head of Regional Sales – North America (PT Domain) by Thursday October 22, 2026

Please fill in the application form and upload your English CV, motivational letter and other relevant documents.

Thank you

Please fill in the application form and upload your English CV, motivational letter and other relevant documents.

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