RaySearch is looking for a machine learning engineer with strong experience in medical image analysis to join our ML Imaging team in Stockholm. You will develop deep learning algorithms for medical image analysis in RayStation, our radiotherapy treatment planning system, helping clinical teams deliver effective cancer treatments. RayStation is used at more than 1,000 cancer clinics in more than 50 countries.

About the role

You will develop machine learning models for use in clinical practice, working on medical image segmentation, synthetic CT generation, image registration, and other medical imaging applications.

Working closely with internal clinical specialists and external partner clinics, you will translate clinical needs into methods and models and evaluate their performance. You will also collaborate with regulatory and quality experts to ensure that algorithms are developed, validated, and documented in accordance with applicable medical device requirements.

You will

• Develop and evaluate deep learning algorithms for medical imaging using Python and PyTorch.
• Prepare and curate clinical imaging datasets, configure and run model training, and maintain reproducible training workflows.
• Review relevant research and assess the suitability of methods for clinical applications.
• Design experiments and evaluate model performance using appropriate quantitative measures and clinical acceptance criteria.
• Collaborate with clinical experts and external clinics on development and validation.
• Contribute to the testing and documentation required for medical device software.

Your profile

You have strong experience in medical image analysis. You enjoy investigating problems, testing ideas, and turning promising methods into machine learning models. You take ownership of your work, can plan and carry out development independently, and know when to involve colleagues. You value collaboration, careful evaluation, and clear documentation, and are motivated by improving cancer care.

Requirements

• A PhD or master’s degree in computer science, machine learning, engineering, mathematics, physics, or a related field.
• At least four years of relevant experience in machine learning or medical image analysis, gained through research or industry, including doctoral research.
• Extensive experience developing and evaluating deep learning models for medical image analysis.
• A strong understanding of deep learning, computer vision, statistics, and applied mathematics.
• Strong programming skills in Python and hands-on experience with PyTorch.
• Familiarity with software engineering practices, including version control, testing, and code reviews.
• Excellent spoken and written communication skills in English.

Meriting

• Experience with 3D medical imaging, particularly CT, MR, or CBCT.
• Experience with one or more of medical image segmentation, image registration, or image synthesis.
• Experience developing and validating medical device software or other regulated software.
• Experience with tools for experiment tracking, data versioning, and reproducible training workflows.

Our Culture  

At RaySearch, we share a passion for innovation and the fight against cancer. Our team consists of dedicated experts who strive to deliver exceptional results through collaboration, attention to detail, and cutting-edge technology. We take pride in our role as a leader in cancer treatment, developing solutions that truly make a difference for patients worldwide.  

Our Offer  

We offer a dynamic and inclusive work environment in Hagastaden, Stockholm’s Life Science Hub. Our modern office space includes an in-house gym, yoga classes, and social activities such as ping pong, table football, and after-work events. We also provide a fantastic lunch buffet, daily fika, and a stunning rooftop terrace with a 360-degree view of Stockholm. This comes 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 via e-mail.  

RaySearch is expanding its machine learning capabilities and is looking for a Machine Learning Platform Engineer to join our headquarters in Stockholm. This is an office-first role. 

You will help build our model development platform: the systems that take clinical data through curation, training and validation to deployed models. Our deep learning models are used in RayStation, our treatment planning system, at cancer clinics worldwide. The platform you build is how the next generation of these models gets made. 

This is not primarily a model development role. Your focus is the platform, data and infrastructure that let ML engineers develop, validate and deploy models reliably. 

About the job 

You will join RaySearch's Machine Learning department and help build a platform that covers the full model lifecycle, from clinical data coming in to validated models going out. 

The work spans: 

• Data curation and management: ingesting, organizing and validating large clinical datasets and medical images, with ETL, databases and storage that keep track of where data came from and how it was used. 
• Model training: reproducible training pipelines orchestrated with Flyte, for dose prediction, segmentation, detection, classification and image registration, with monitoring of training runs. 
• Validation: automated evaluation and reporting that connects data, method, code and results, including web-based tools for reviewing images, contours, radiotherapy plans and validation outcomes. 
• Deployment and ML integration: getting models into production and integrated into our software products, including inference optimization. 
• Operations: monitoring training and evaluation runs, keeping services and databases up to date, and troubleshooting when things go wrong. 
• The platform is used by multiple teams and projects, so good design matters: well-designed APIs, solid documentation and reliable services. You will own services from design to operation and work closely with ML engineers, software developers, infrastructure teams, medical physicists and product teams.

Your profile 

You are an experienced software engineer who enjoys building systems that help others do their best work. You are pragmatic: you know when a simple solution is enough and when the problem needs a more scalable architecture. You care about reliability, automation and developer experience. You like building platforms that are robust and well-designed enough to serve many different users. 

You don't need to spend your days training neural networks. You do understand how ML development differs from traditional software engineering, and you find problems like reproducibility, data lineage, model versioning, large datasets and GPU workloads interesting. 

Requirements 

• M.Sc. in Computer Science, Software Engineering, Machine Learning or equivalent experience, and at least 5 years of professional software engineering. 
• Strong Python skills and experience designing backend services and APIs. 
• Solid knowledge of relational databases and data modeling, such as PostgreSQL. 
• Experience with containers, for example Docker, and with designing, running and troubleshooting production services. 
• Good engineering practices: automated testing, code review, CI/CD and observability. 
• Experience contributing to architecture decisions in large, shared codebases. 
• Excellent spoken and written English. 

Meriting

Experience in one or more of the following areas is considered an advantage: 

• ML platforms and MLOps tooling, such as MLflow and experiment tracking. 
• PyTorch, and model deployment or inference optimization, such as TensorRT. 
• Workflow orchestration and ETL. We use Flyte, but experience with Airflow, Prefect, Dagster or similar is just as relevant. 
• Kubernetes, cloud platforms and infrastructure as code. 
• Designing platforms and APIs used by many teams or users, including access control and security. 
• Operating production services with high reliability requirements. 
• Web application development. 
• Medical imaging (DICOM, RT structures), healthcare technology or other regulated, safety-critical environments. 

Our Culture  

At RaySearch, we share a passion for innovation and the fight against cancer. Our team consists of dedicated experts who strive to deliver exceptional results through collaboration, attention to detail, and cutting-edge technology. We take pride in our role as a leader in cancer treatment, developing solutions that truly make a difference for patients worldwide.  

Our Offer  

We offer a dynamic and inclusive work environment in Hagastaden, Stockholm’s Life Science Hub. Our modern office space includes an in-house gym, yoga classes, and social activities such as ping pong, table football, and after-work events. We also provide a fantastic lunch buffet, daily fika, and a stunning rooftop terrace with a 360-degree view of Stockholm. This comes 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 via e-mail.  

As a Regulatory Affairs Support Specialist, you will join our Quality Assurance and Regulatory Affairs team of dedicated specialists working to ensure compliance with global medical device regulations and to bring innovative cancer treatment solutions to patients worldwide.

About the role

In this role, you will take ownership of RaySearch's regulatory vigilance activities and work closely with colleagues across Quality Assurance, Regulatory Affairs, Service, Development. You will be responsible for assessing, reporting and following up on vigilance cases, while also supporting regulatory submissions and registrations in global markets.

This is an excellent opportunity for someone with a few years of experience in medical device regulatory affairs who wants to deepen their expertise in vigilance and continue developing within global regulatory affairs.

The position is based at RaySearch's headquarters in Stockholm and reports to the Group Manager Regulatory.

Your main responsibilities:

• Own and coordinate regulatory vigilance activities
• Assess complaints and incidents for reportability under applicable regulations
• Prepare, submit and follow up vigilance reports with competent authorities and notified bodies
• Support post-market surveillance activities and regulatory compliance efforts
• Support regulatory submissions and registrations in global markets
• Maintain and update regulatory documentation and records
• Monitor changes in regulatory requirements
• Collaborate with internal stakeholders to ensure timely and compliant regulatory deliverables
• Contribute to the continuous improvement of regulatory processes and procedures

Your profile

You are a positive, motivated and collaborative person with a genuine interest in regulatory affairs and medical devices. You enjoy taking responsibility, working in a structured way and finding practical solutions to complex regulatory challenges.

You are eager to learn, develop your expertise and grow within regulatory affairs. You thrive in a team environment, communicate effectively with different stakeholders and are comfortable managing multiple activities simultaneously while maintaining attention to detail.

Skills and experience:

• University degree in Life Sciences, Engineering, Biomedical Engineering, or a related field
• 2 years of experience in regulatory affairs within the medical device industry
• Experience working with EU MDR requirements
• Experience working with ISO 13485 
• Experience with vigilance, complaint handling, post-market surveillance or related regulatory activities
• Experience supporting regulatory submissions and registrations
• Strong written and verbal communication skills in English
• Ability to work independently and collaboratively in a cross-functional environment
• Strong organizational skills and attention to detail

Merits:

• Software as a medical device (SaMD)
• Global regulatory submissions
• FDA regulations and international regulatory frameworks
• Radiation oncology

Our Culture

At RaySearch, we share a passion for innovation and the fight against cancer. Our team consists of dedicated experts who strive to deliver exceptional results through collaboration, attention to detail, and cutting-edge technology. We take pride in our role as a leader in cancer treatment, developing solutions that truly make a difference for patients worldwide.

Our Offer

We offer a dynamic and inclusive work environment in Hagastaden, Stockholm’s Life Science Hub. Our modern office space includes an in-house gym, yoga classes, and social activities such as after-work events. We also provide a fantastic lunch buffet, daily fika, and a stunning rooftop terrace with a 360-degree view of Stockholm. This comes with a competitive compensation and benefits package.

Application

Please apply for the position through the application form below. We do not accept applications via e-mail.

RaySearch is expanding in the field of machine learning and is looking for a Machine Learning Engineer with strong software engineering skills to join our head office in Stockholm. In this role, you will have the opportunity to innovate and develop software that improves the lives of cancer patients around the world, while building the infrastructure, services, and developer tooling that enable machine learning solutions in the ML department to move efficiently from experimentation to clinical products used in cancer treatment worldwide. 

About the job

You will be part of an agile team developing machine learning solutions for radiation oncology. Our work spans areas such as image segmentation, image synthesis, treatment planning, dose prediction, and other deep learning applications within medical imaging and radiation therapy. 

You will 

Your day-to-day work will involve training, evaluating and operationalizing deep learning models. This includes analyzing results using clinical metrics and ensuring that predictions meet acceptance criteria. You will work with real clinical datasets and iterate closely with medical physicists and oncologists to validate model performance against clinical standards. 

The role combines machine learning research, experimentation and software development:

• Develop state-of-the-art deep learning methods for medical imaging and radiation therapy. 
• Work on problems involving 2D and 3D medical images, anatomical structures, treatment data, and multimodal clinical information
• Design experiments, define appropriate evaluation methods, and analyze model behavior. 
• Build and evaluate new architectures, training strategies, and research ideas and determine which approaches are worth bringing into our products
• Work with large clinical datasets and develop reliable pipelines for training, validation, evaluation, and inference 
• Collaborate closely with medical physicists, oncologists, researchers, product owners, and software engineers

Your profile 

You are someone who genuinely loves both ML and software engineering. You read papers, get excited about new architectures and training techniques, and have expertise in implementing them. 

You are autonomous and self-driven. Given a problem, you take ownership: you research the landscape, form a plan, and execute without needing to be guided through every step. You know when to dig deeper on your own and when to pull in a colleague. You are comfortable making decisions, and you communicate clearly about what you are doing and why. 

You contribute to a positive team atmosphere and take responsibility for your work. Above all, you care about building software that makes a meaningful impact for healthcare professionals and their patients. 

Experience & skills 

Requierments 

• M.Sc. in Computer Science, Machine Learning, or equivalent 
• Minimum 4 years of professional experience in software development, machine learning, or a related field 
• Excellent understanding of machine learning techniques and algorithms 
• Strong programming skills in Python with emphasis on writing clean, maintainable, production-quality code 
• Solid software engineering practices: version control, code review, testing, CI/CD 
• Experience using deep learning frameworks such as PyTorch 
• Solid knowledge of data structures, algorithms, statistics, and applied mathematics 
• Comfort working in large, collaborative code bases and contributing to shared architecture decisions 
• Excellent spoken and written communication skills in English 

Meriting 

• Experience with medical image segmentation, registration, image synthesis, reconstruction, representation learning, or multimodal imaging.  
• Contributions to open source projects 
• Experience working in regulated or safety-critical software environments (e.g., medical devices, automotive)

Our Culture  

At RaySearch, we share a passion for innovation and the fight against cancer. Our team consists of dedicated experts who strive to deliver exceptional results through collaboration, attention to detail, and cutting-edge technology. We take pride in our role as a leader in cancer treatment, developing solutions that truly make a difference for patients worldwide.  

Our Offer  

We offer a dynamic and inclusive work environment in Hagastaden, Stockholm’s Life Science Hub. Our modern office space includes an in-house gym, yoga classes, and social activities such as ping pong, table football, and after-work events. We also provide a fantastic lunch buffet, daily fika, and a stunning rooftop terrace with a 360-degree view of Stockholm. This comes 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 via e-mail.  

We are looking for a Business Development Manager - Medical Oncology to help define and drive RaySearch's expansion into the Medical Oncology market.

This is a unique opportunity to join RaySearch at an early stage of a new strategic growth initiative beyond our traditional radiation oncology business. You will play a key role in helping shape our strategy, evaluate market opportunities, developing commercialization and go-to-market approaches, and supporting the the introduction of future solutions within Medical Oncology.

As part of the Corporate Development & Strategy organization, you will collaborate closely with research & development, Sales, Strategic Partnerships, and Executive Management to assess market needs, build customer relationships, and identify opportunities that strengthen RaySearch's position in the market.

The role reports to the Head of Corporate Development & Strategy. While Stockholm is listed as the primary location, we are open to considering candidates based in other locations.

About the job

In this global role, you will analyze the medical oncology market and work to identify and assist in executing new commercial growth opportunities. You will collaborate closely with Sales, Marketing, Product Strategy Managers, and Strategic Partnership Managers to develop and drive targeted initiatives that drive market entry and accelerate adoption in this new segment.

You will translate strategic direction into concrete market activities, ensuring strong alignment between product positioning, customer needs, and commercial execution.

Your main tasks

• Lead market intelligence activities to develop a comprehensive understanding of the Medical Oncology landscape, including market dynamics, customer needs, competitive positioning, treatment pathways, reimbursement models, and emerging trends
• Identify and evaluate growth opportunities, unmet needs, and strategic market segments within Medical Oncology
• Develop and execute market development and commercialization strategies for future Medical Oncology solutions
• Build and maintain relationships with key stakeholders including Medical Oncologists, Oncology Nurses, Hospital Administrators, Cancer Centers, Professional Societies, and Industry Partners
• Assess emerging clinical evidence, technology trends, and evolving standards of care to identify opportunities for innovation and growth in alignment with the overall RaySearch ecosystem.
• Support customer discovery activities to ensure future solutions address meaningful clinical and operational challenges
• Conduct market assessments, competitive analysis, and business case development to support strategic decision-making
• Support the development and execution of go-to-market strategies for future product launches
• Identify and assess strategic partnership opportunities that support growth objectives
• Monitor competitive developments, market access considerations, and industry trends relevant to Medical Oncology

Your Profile

You are commercially minded, strategically driven, and passionate about improving cancer care.

You bring a strong understanding of the Medical Oncology environment, ideally having worked within a chemotherapy department or have experience in medical oncology workflow tools. You enjoy working in situations where there is ambiguity, and you are comfortable helping define strategy, build relationships, and create new opportunities from the ground up.

You are equally comfortable engaging with clinicians, healthcare leaders, and business stakeholders, and you have the ability to translate market insights into actionable business recommendations.

Experience & Skills

• BSc or MSc in Life Sciences, Healthcare, Nursing, Pharmacy, Medicine, Business, Medical Technology
• A minimum of 5 years of clinical experience within Medical Oncology, Oncology Nursing, or a related oncology specialty
• A minimum of 2 years of experience in business development, strategic marketing, product management, commercial strategy, market development, or a related function
• Strong understanding of Medical Oncology treatment pathways, clinical workflows, and healthcare systems
• Strong analytical, communication, and stakeholder management skills
• Experience working in international and cross-functional environments
• Excellent command of English

Our Culture 

At RaySearch, we share a passion for innovation and the fight against cancer. Our team consists of dedicated experts who strive to deliver exceptional results through collaboration, attention to detail, and cutting-edge technology. We take pride in our role as a leader in cancer treatment, developing solutions that truly make a difference for patients worldwide. 

Our Offer 

We offer a dynamic and inclusive work environment in Hagastaden, Stockholm’s Life Science Hub. Our modern office space includes an in-house gym, yoga classes, and social activities such as ping pong, table football, and after-work events. We also provide a fantastic lunch buffet, daily fika, and a stunning rooftop terrace with a 360-degree view of Stockholm. This comes with a competitive compensation and benefits package. 

Application 

Please apply for the position through the application form below. We do not accept applications via e-mail. 

Do you want to build something new, not just maintain what already exists? A lot is happening in RaySearch’s Quality & Regulatory Affairs department right now, and RaySearch is looking for a business-minded Group Manager Quality who will lead a team, shape the next phase of quality excellence and drive development forward in a medical device company where innovation and compliance go hand in hand.

Your role

As Group Manager Quality, you lead the Quality function at RaySearch. You are part of the Quality & Regulatory Affairs Department, report to the Director of the department, and lead a team of three. This is a role with great opportunities to build new, influence and drive change. You will shape how quality works across the organization and evolve an established QMS into something lean, scalable and fit for purpose, so the business can move with both confidence and speed. From the selection of a new eQMS to quality processes for AI and machine learning, you will help set the direction. Your main responsibilities include:

• Driving the continued evolution of the QMS, with a focus on simplifying processes and enabling scalability as the organization grows
• Leading and developing the quality team through clear direction, coaching and support
• Overseeing key operational quality activities, including CAPA, nonconformance management, change control, internal audits, document management and supplier quality
• Supporting the selection and implementation of an eQMS solution
• Contributing to quality and compliance processes in emerging areas such as AI, machine learning and data management
• Ensuring compliance with ISO 13485, MDR Article 10, MDSAP and QMSR, and supporting regulatory inspections and audits
• Partnering with cross-functional teams so that quality practices enable efficient ways of working

Your background

• An MSc or BSc in engineering, life sciences or a related field relevant to medical device quality and regulatory affairs
• Extensive experience in Quality Management in the medical device industry
• Strong expertise in ISO 13485 and medical device QMS, including MDSAP and FDA QMSR requirements
• Solid knowledge of EU MDR
• Strong understanding and practical application of ISO 14971 risk management
• Lead auditor experience, including planning, conducting and leading internal and external audits
• Proven leadership experience, including leading and developing teams
• Very good command of English, both written and spoken

It is meriting if you have experience implementing, optimizing or validating eQMS solutions. Experience with medical device design and development, including software lifecycle processes under IEC 62304, is also meriting, as is experience with cybersecurity requirements, AI/ML-enabled medical devices, or a Lead Auditor certification.

You are a business-minded, hands-on and collaborative leader who enjoys improving processes and solving operational challenges. You have a clear sense of what good quality looks like, and you know how to implement it so that it supports the business rather than slowing it down. You can tell critical risks from unnecessary complexity, and you naturally build strong cross-functional relationships. Most importantly, you are motivated by the opportunity to make a visible impact and play a key role in shaping a modern, scalable quality organization.

RaySearch offers

• A key role at an exciting time, when a lot is happening in the Quality & Regulatory Affairs department
• Great opportunities to build new, influence and drive development forward, and to lead a team shaping a modern, scalable quality organization with visible impact across the company
• A modern office in Hagastaden, Stockholm’s Life Science Hub, with an in-house gym, yoga classes, a lunch buffet, daily fika and a rooftop terrace with a 360-degree view of Stockholm
• A competitive compensation and benefits package

Application

RaySearch is working with Compass on this recruitment. Selection is ongoing, so please apply as soon as possible via this link: https://pnty-apply.ponty-system.se/compass?id=2299

For questions, you are warmly welcome to contact Compass’s consultants:

Erik Düring, Senior Consultant, +46 70 899 94 69, [email protected]

Jens Nordqvist, Head of Research, +46 70 145 35 69, [email protected]