Are you passionate about improving cancer care by making complex, safety-critical systems work seamlessly in real clinical practice? As a Clinical Validation Specialist at RaySearch, you’ll help turn clinical and technical insight into safer, smarter integrations between RayCare and cutting-edge treatment delivery devices. By designing and validating realistic workflows, uncovering edge cases, and ensuring treatment data flows correctly between systems, you directly shape software used in oncology centers worldwide—helping thousands of patients receive safer, more efficient treatments every day.

About RayCare

RayCare is our next-generation oncology information system, built to bring order, clarity, and efficiency to some of the most complex workflows in modern cancer care. Used in clinics around the world, RayCare supports every step of the patient journey—from the first registration to treatment delivery and follow-up.

Designed together with leading cancer centers, RayCare helps physicians, physicists, treatment planners and therapists coordinate their work, access the right information at the right time, and deliver care safely and efficiently. The system integrates deeply with RayStation and external treatment delivery devices, enabling seamless data flow through HL7, DICOM, and dedicated device interfaces. With RayCare, clinical teams can focus less on system friction and more on patient care—and you will be part of shaping how that happens.

About the job

As a Clinical Validation Specialist, you’ll step into a role where clinical expertise meets technical innovation. You’ll work at the heart of our integration efforts—collaborating with developers, treatment machine vendors, and clinical partners to ensure that RayCare’s integrations are not just functional, but truly aligned with how radiotherapy is delivered in practice.

Your days will be a mix of running full treatment workflows on simulators, validating complex device interactions, troubleshooting unexpected behaviors, and shaping solutions that improve safety, usability, and efficiency for clinics worldwide. What you discover, refine, and validate becomes part of a product used in oncology centers across the globe.

Travel plays a big role—you’ll regularly visit clinics and vendor sites to test integrations in real environments, work with experts, and see firsthand how your work influences daily patient care. This is a hands-on, problem-solving role with global impact.

Your profile 

We believe you are someone who understands how complex, safety-critical workflows work in practice—and who enjoys validating that they behave correctly in real clinical settings. You have a structured way of thinking, a strong sense for detail, and an interest in how different steps in the radiotherapy treatment chain interact with each other.

Your background may come from working close to the clinic—such as treatment planning, OIS/TPS usage, or treatment delivery—or from testing and validating medical software or other critical systems in healthcare. Regardless of where you started, you’re comfortable analysing real workflows, identifying risks, and ensuring that systems behave safely and predictably in practice.

Equally important is your ability to collaborate and communicate. You enjoy working closely with developers, clinical experts, vendors, and other stakeholders, and you’re able to translate clinical or technical insight into clear feedback and concrete improvements. You appreciate a role that combines hands-on testing, analytical problem-solving, and real clinical logic.

You don’t need to be an expert in everything from day one. What we value most is your curiosity, your willingness to learn, and your ability to take ownership when validating real-world treatment workflows.

We believe you’ll thrive in this role if you have:

• A master’s degree in medical physics or a similar technical or clinical field, or equivalent experience working with medical software or systems in healthcare.
• Experience from radiotherapy workflows or from testing and validating medical software, medical devices, or other safety-critical systems.
• An understanding of how medical software and technical systems are used in practice—and an interest in how different steps in a workflow affect each other.
• Strong analytical skills and attention to detail, particularly in safety-critical contexts.
• The ability to communicate clearly in English and work closely with both clinical and technical stakeholders.
• Willingness to travel for onsite validation with clinics and vendors.
• Comfort working independently and taking initiative when validating workflows in real clinical environments.

Nice to have (but not required):

• Experience designing or executing test cases, working with simulators, or validating workflows in realistic clinical scenarios.
• Previous exposure to HL7, DICOM, or other clinical integrations and data flows.
• Experience from multiple treatment systems, vendors, or clinical environments.

Our Culture

Culture at RaySeach is the driving force behind our organization, where everything we do is driven by a shared passion for innovation and the fight against cancer. Our dedication is reflected in our ability to deliver exceptional results, pay close attention to detail, and consistently go the extra mile. Our employees stand out as experts in their field, driven by a relentless focus on solving problems - no matter how complex. At RaySearch, we take pride in leading the way in cancer treatment, leveraging cutting-edge technology to develop innovative solutions that make a real difference in patient care.

Our Offer

At RaySearch, we offer a diverse and inclusive work environment, fostering openness, sincerity, and collaboration. Located in Hagastaden, Stockholm's Life Science Hub, our modern and creative workspace includes an in-house gym, yoga, and social activities like ping pong, table football, and regular after-work events. Our bistro serves a fantastic lunch buffet, and we offer morning- and afternoon-fika every day. Our rooftop terrace also provides a stunning 360-degree view of Stockholm, enhancing the work experience. All of this comes attached with a competitive compensation and benefits package.

Application

Please apply to the position through the application form below. We do not accept applications by e-mail. Selection and interviews will be ongoing.

Do you want to build software that truly saves lives? At RaySearch, you’ll have the opportunity to influence cancer care worldwide through code, architecture, and leadership. We are looking for an experienced developer who wants to take the next step and combine advanced development with a people-focused leadership role as a Group Manager.

Our development organization consists of approximately 160 highly engaged colleagues who build software used daily in cancer clinics around the globe. As we continue to grow, we are looking for additional group managers who want to help shape our technology, our teams, and our future.

About the role

This role offers the best of both worlds, combining hands-on technical work with people leadership. You will have personnel responsibility for a team of 8–12 developers while remaining an active contributor to the development of RayStation, our Treatment Planning System.

As a Group Manager, you focus on enabling your team to succeed. You support and develop your employees through regular one-on-one conversations, competence development, and recruitment. You will not be alone in your leadership role, but part of a collaborative management context with support from both peers and the wider organization.

In your role as a developer, you work close to the domain on technically demanding solutions and contribute to building robust, scalable systems. Depending on your background, you will work across backend, frontend, or full-stack development, contributing to architecture and system design. Our solutions are built using modern architectural principles such as Domain-Driven Design, event-driven systems, and asynchronous communication, in an environment where security, data integrity, and reliable system communication are critical. Your technical expertise will have a direct and meaningful impact on patient care.

Your profile

You have a strong technical foundation in .NET development and a clear interest in taking responsibility for both people and technical delivery. You are motivated by building high-performing teams, creating structure, and contributing to a safe and sustainable working environment. With a humble and communicative leadership style, you build trust and take ownership of people-related topics such as performance conversations, competence development, and recruitment, with support from the organization. You are self-driven, proactive, and results-oriented, with the ability to combine deep technical understanding with a present and engaged leadership approach.

To succeed in this role, you bring:

• A Master’s degree in Engineering or an equivalent academic background
• At least 7 years of experience developing complex products using .NET
• A genuine interest in people leadership and personnel responsibility
• Experience from leadership roles or informal leadership in development teams
• A strong drive to contribute to and further develop the engineering organization
• Fluency in English, written and spoken.

Previous experience in a role with formal people management responsibility together with fluency in Swedish is not required but considered as highly meritorious.

Our Culture

Culture at RaySeach is the driving force behind our organization, where everything we do is driven by a shared passion for innovation and the fight against cancer. Our dedication is reflected in our ability to deliver exceptional results, pay close attention to detail, and consistently go the extra mile. Our employees stand out as experts in their field, driven by a relentless focus on solving problems - no matter how complex. At RaySearch, we take pride in leading the way in cancer treatment, leveraging cutting-edge technology to develop innovative solutions that make a real difference in patient care.

Our Offer

At RaySearch, we offer a diverse and inclusive work environment, fostering openness, sincerity, and collaboration. Located in Hagastaden, Stockholm's Life Science Hub, our modern and creative workspace includes an in-house gym, yoga, and social activities like ping pong, table football, and regular after-work events. Our bistro serves a fantastic lunch buffet, and we offer morning- and afternoon-fika every day. Our rooftop terrace also provides a stunning 360-degree view of Stockholm, enhancing the work experience. All of this comes attached with a competitive compensation and benefits package.

Application

Please apply to the position through the application form below. We do not accept applications by e-mail. Selection and interviews will be ongoing.

We are looking for a System Developer who can blend software development expertise with a strong interest in security. In this role, you’ll contribute directly to RaySearch’s mission: advancing cancer treatment through innovative software. By ensuring that our products are designed and implemented securely, you help protect both patients and healthcare professionals and strengthen the reliability of the tools they depend on.

About the role

As a System Developer within cybersecurity, you will play a key role in shaping our secure development practices. You will work closely with development teams to embed security into the software development lifecycle and ensure that our products follow industry-leading standards. The role combines hands-on application security work—such as secure code reviews, threat modeling, and penetration testing—with knowledge sharing, training, and collaborative support to help teams make informed security decisions.

This is an ideal role for a developer who enjoys cybersecurity and wants to contribute by guiding others, elevating security awareness, and helping teams work securely and effectively together.

Your main tasks

• Work with development teams to implement application security best practices throughout the SDLC.
• Participate in threat modeling (e.g., STRIDE) and risk assessments for new and existing applications.
• Assist in designing and implementing cybersecurity controls in products.
• Ensure compliance with cybersecurity frameworks and standards.
• Contribute to developer security awareness training and promote secure development practices.
• Perform secure code reviews, static/dynamic analysis, and penetration testing.
• Develop and maintain secure coding guidelines and security documentation.
• Support the preparation of cybersecurity documentation for regulated products (including FDA-related frameworks).

Your profile

You are a developer with a strong interest in cybersecurity and secure design. You enjoy sharing knowledge, collaborating with others, and supporting development teams in building secure solutions. You communicate clearly, work constructively across functions, and contribute to a culture where security is a natural part of everyday development.

Required skills

• Proficiency in C#, .Net Core, and related technologies. 
• Strong understanding of application security principles (e.g., OWASP Top 10, secure coding).
• Experience with threat modeling and risk analysis.
• Excellent ability to produce clear, structured security and compliance documentation.

It’s an advantage, but not required, if you also have experience of:

• Working in regulated environments (e.g., medical devices, embedded systems).
• Hands-on experience with security testing tools (e.g., SonarQube, Burp Suite).
• Familiarity with FDA cybersecurity guidelines, the IEC 8100x series, or IEC 62443 for industrial/embedded systems.
• Integrating security into CI/CD pipelines (Azure DevOps or GitHub Actions).

Our Culture

Culture at RaySeach is the driving force behind our organization, where everything we do is driven by a shared passion for innovation and the fight against cancer. Our dedication is reflected in our ability to deliver exceptional results, pay close attention to detail, and consistently go the extra mile. Our employees stand out as experts in their field, driven by a relentless focus on solving problems - no matter how complex. At RaySearch, we take pride in leading the way in cancer treatment, leveraging cutting-edge technology to develop innovative solutions that make a real difference in patient care.

Our Offer

At RaySearch, we offer a diverse and inclusive work environment, fostering openness, sincerity, and collaboration. Located in Hagastaden, Stockholm's Life Science Hub, our modern and creative workspace includes an in-house gym, yoga, and social activities like ping pong, table football, and regular after-work events. Our bistro serves a fantastic lunch buffet, and we offer morning- and afternoon-fika every day. Our rooftop terrace also provides a stunning 360-degree view of Stockholm, enhancing the work experience. All of this comes attached with a competitive compensation and benefits package.

Application

Please apply to the position through the application form below. Selection and interviews will be ongoing. We do not accept applications by e-mail.

Are you passionate about creating smooth, efficient development processes? Do you thrive in agile environments where collaboration, automation, and continuous improvement drive success? Would you like to be part of a team developing cutting-edge software that supports cancer care around the world? Then join us at RaySearch Laboratories as a DevOps Engineer and help shape the future of oncology information systems.

About the role

RaySearch is developing advanced software solutions to improve cancer treatment worldwide. As a DevOps Engineer at RaySearch, you’ll be part of a collaborative team driving automation, efficiency, and reliability across our development environments. You’ll work closely with developers and DevOps engineers across several products — including our oncology information system and treatment planning system — to optimize build pipelines, release processes, and development workflows. As our configuration teams grow, you’ll have great opportunities to shape routines and ways of working together. Your main tasks will be to:

• Strive to make the development iteration times short and efficient

• Manage build and release flows using pipelines

• Create and manage tools using the Azure DevOps API to input and output information

• Manage build and test servers and the related environments

• Administer, manage and provide support for Git version control

Your profile

We believe you are a collaborative and curious professional who enjoys working closely with others to make things run smoothly. You take initiative, share ideas, and look for ways to improve how things are done. We believe you are attentive to details and value quality in your work, while keeping a pragmatic mindset. You’re comfortable in a dynamic environment where teamwork and communication are key to success. Fluency in English is required, and Swedish proficiency is a plus. Further, we believe you have:

• A B.Sc. or M.Sc. in engineering or equivalent experience

• 5 years’ experience in software development and/or configuration managementExperience in programming using .NET (PowerShell/C#).

• Experience in continuous integration and deployment (using e.g. Azure DevOps pipelines, GitHub Actions, or similar).

• Experience in Infrastructure as Code (Terraform/Ansible).

• Experience in Windows Server administration/management.

• Excellent communication skills in English.

Lastly, it is not a requirement but highly meritorious if you have experience in:

• Microsoft Visual Studio

• Git

• Automation and process management using Azure DevOps

Our Culture  

Culture at RaySearch is the driving force behind our organization, where everything we do is driven by a shared passion for innovation and the fight against cancer. Our dedication is reflected in our ability to deliver exceptional results, pay close attention to detail, and consistently go the extra mile. Our employees stand out as experts in their field, driven by a relentless focus on solving problems - no matter how complex. At RaySearch, we take pride in leading the way in cancer treatment, leveraging cutting-edge technology to develop innovative solutions that make a real difference in patient care.   

Our Offer   

At RaySearch, we offer a diverse and inclusive work environment, fostering openness, sincerity, and collaboration. Located in Hagastaden, Stockholm's Life Science Hub, our modern and creative workspace includes an in-house gym, yoga, and social activities like ping pong, table football, and regular after-work events. Our bistro serves a fantastic lunch buffet, and we offer morning- and afternoon-fika every day. Our rooftop terrace also provides a stunning 360-degree view of Stockholm, enhancing the work experience. All of this comes attached with a competitive compensation and benefits package.   

Application 

Please apply for the position through the application form below. Selection and interviews will be ongoing. We do not accept applications by email.