Senior Full Stack Engineer (Java, React) at SonarSource | Geneva

About SonarSource:SonarSource is dedicated to enhancing code quality and security, ensuring that developers can focus on crafting excellent software without the hindrance of technical debt. We leverage advanced AI technologies to increase developer productivity and streamline workflows. Our platform analyzes code from various sources, including internal team…

Join the prestigious CERN team as a Mechanical Technician focused on enhancing the Compact Muon Solenoid (CMS) Detector. This role is pivotal in advancing particle physics research and innovation. You will engage in critical upgrades that support groundbreaking experiments at one of the world’s leading scientific laboratories.

Join CERN as an Electrical Technician specializing in Power Transformers! We seek a dedicated professional to support the maintenance and operation of our high-performance transformers. Your role will involve diagnosing electrical issues, ensuring compliance with safety standards, and collaborating with engineers to enhance transformer performance.

Role overview CERN is seeking a Mechatronics Technician focused on optical links. This position supports the development and upkeep of advanced optical systems used in scientific research. What you will do Collaborate with engineers and scientists to maintain and improve optical equipment Contribute to the development of optical link systems Help ensure equipment operates reliably and meets performance standards Location This role is based in Geneva.

Join CERN as a Surface Finishing Technician, where you will play a crucial role in ensuring the quality and precision of surface finishes in our high-tech facilities. Your expertise will contribute to groundbreaking scientific research and innovation. In this position, you will collaborate with a team of skilled professionals to carry out surface finishing processes, ensuring our equipment meets the highest standards.

Role overview The Financial Officer for EU Projects at CERN will oversee funding and financial reporting for a range of research initiatives supported by the European Union. This position is based in Geneva and plays a key part in managing the financial aspects of collaborative scientific projects. What you will do Manage financial operations for research projects funded by the EU Prepare and review financial reports to ensure they meet EU standards Monitor compliance with all relevant financial regulations Support the allocation and use of project resources for maximum effectiveness Impact This role helps ensure that CERN’s EU-funded projects meet financial obligations and use resources efficiently, contributing to the success of international research collaborations.

Join Sonar as a Principal Platform Engineer!At Sonar, we are dedicated to enhancing code quality and security, empowering developers with AI-driven tools, and optimizing workflows. Our comprehensive analysis supports over 30 programming languages, ensuring that applications are secure, reliable, and maintainable. Trusted by over 7 million developers and 400,000 organizations globally, including giants like the DoD, Microsoft, and NASA, we are committed to fostering a vibrant community.We pride ourselves on our strong culture of accountability and positivity, where each team member is dedicated to our mission and the open-source community. We make deliberate decisions with urgency and operate collectively as One Team to achieve our goals.If you are passionate about building exceptional products and want to be part of a dynamic, global team, this is the opportunity for you!

Your ResponsibilitiesEmbark on a unique journey with us where extremes meet—experience environments hotter than the center of the sun and colder than the vacuum of space, all at once. This is your chance to expand your knowledge exponentially and see your contributions move at unprecedented speeds. This is how you can propel your career forward—this is your Origin. Join us!Explore our currently available projects individually on our career site here.If you do not find a match among our current openings but meet the eligibility criteria listed below, feel free to submit a spontaneous application. Your profile may be considered for unlisted projects or additional needs. Please note that this does not guarantee contact from hiring managers for an interview.Eligibility Criteria:You must be a citizen of a CERN Member or Associate Member State.You possess a maximum of two years of professional experience since graduation by the application deadline.Your highest educational qualification is a general secondary education diploma.You have never held a CERN fellow or graduate contract.Applicants with a Bachelor’s, Master’s, or PhD degree are not eligible.

CERN seeks an Administrative Assistant to join the Staff Association Secretariat in Geneva. This position plays a key part in supporting daily administrative work and helping maintain clear communication across the organization. Role overview The Administrative Assistant will handle a range of office tasks that keep the Secretariat running smoothly. Responsibilities include managing correspondence, organizing documents, and assisting with scheduling and internal communications. What you will do Provide general administrative support to the Staff Association Secretariat Help coordinate meetings and manage calendars Assist with document preparation and filing Facilitate communication within the organization Location This role is based at CERN headquarters in Geneva.

Join Our Non-Member State Postdoc Fellowship Programme in Theoretical PhysicsEach year, we offer two prestigious postdoctoral fellowships through our Non-Member State Fellowship Programme in Theoretical Physics. The successful candidates will receive a fellowship for an initial duration of two years, with the possibility of an exceptional extension to a third year.

CERN is seeking a skilled DAQ and Detector Developer to join our world-class team in Geneva. In this role, you will be responsible for designing, developing, and maintaining advanced data acquisition systems and detectors. This is an exciting opportunity to contribute to groundbreaking research and collaborate with leading scientists in the field of particle physics.

Role overview The Magnet Test Station Technician position at CERN in Geneva offers a starting point for those interested in technical work within a scientific environment. This role plays a part in supporting particle physics research by assisting with the testing and upkeep of magnet systems used in experiments. The position is designed for recent graduates or individuals beginning their technical careers. What you will do Assist in testing magnet systems that are essential to CERN's experiments Help maintain and monitor magnet equipment to ensure proper functioning Work with experienced technicians and scientists to support the reliable operation of test stations

Join CERN as a Polymers and Composites Technician, where you will play a crucial role in advancing materials science in a collaborative and innovative environment. You will be responsible for the development, testing, and application of advanced polymer and composite materials used in cutting-edge scientific experiments.

Your RoleEmbark on an extraordinary journey with us, where temperatures can soar above the sun's surface and plunge below the frigid reaches of space—all at once. Here, you will discover unparalleled learning experiences and witness your contributions accelerate at the speed of light. This is your launching pad for a vibrant career. Step into your future with us!Explore our latest projects listed individually on our career site here!If our current openings do not align with your skills and you meet the eligibility criteria detailed below, feel free to submit a spontaneous application. Your profile may be reviewed for upcoming opportunities or additional needs. Please note that this is optional and does not guarantee a response from hiring managers for interviews.Eligibility Criteria:You must be a national of a CERN Member or Associate Member State.You possess a maximum of two years of professional experience since graduation by the application deadline.Your highest educational qualification is a general secondary education diploma.You have never held a CERN fellow or graduate contract before.Holders of a Bachelor’s, Master’s, or PhD degree are not eligible to apply.

CERN seeks a Junior Protocol Officer based in Geneva to support its international relations and communication work. This role contributes to the organization’s efforts to foster collaboration and maintain strong connections with partners around the world. Responsibilities Assist with protocol arrangements for visits, meetings, and events involving dignitaries and guests Help ensure smooth interactions between CERN and its international partners Contribute to activities that advance CERN’s scientific mission and promote collaboration Role focus This position centers on supporting the logistics and communications that underpin CERN’s international partnerships. The Junior Protocol Officer plays a part in welcoming guests and facilitating events that highlight CERN’s research and mission.

Role Overview Talan is seeking an ABAP Developer focused on S/4HANA solutions for the Geneva office. This position centers on designing, building, and improving applications within the SAP environment to support and streamline business operations for a varied client base. What You Will Do Develop and maintain ABAP programs tailored for S/4HANA projects Design solutions that enhance and automate business processes within SAP Work closely with clients and internal teams to deliver reliable, effective applications Location Geneva

Ripple Labs Inc. builds cryptocurrency solutions for financial institutions, businesses, governments, and developers. The company’s mission centers on making value move as seamlessly as information, aiming to improve the global financial system and expand economic opportunities. This Software Engineering Manager position is based in Geneva, Switzerland. The manager leads a team of engineers dedicated to delivering high-quality products. Collaboration with other teams is essential to set clear project goals and ensure strong development and deployment practices. What you will do Guide and mentor software engineers to deliver reliable, high-quality products. Work with cross-functional teams to define objectives and project outcomes. Promote and uphold best practices in software development and deployment. Requirements Demonstrated experience managing software engineering teams. Strong knowledge of software development methodologies and practices. Excellent problem-solving abilities and communication skills.

Who is Sonar?At Sonar, we are dedicated to enhancing code quality and security, empowering developers through innovative AI-driven solutions that streamline workflows. Our comprehensive analysis encompasses all code inputs, ensuring applications are more secure, reliable, and maintainable. With roots in the open-source community, our tools support over 30 programming languages and technologies, serving over 7 million developers and 400,000 organizations globally, including industry giants like the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.We pride ourselves on fostering an environment that promotes product excellence supported by a strong internal culture. Our team is deeply committed and passionate about our mission and values, upholding high standards of positivity, accountability, and collaboration.At Sonar, we make intentional decisions with clarity, while maintaining a sense of urgency to drive progress. Our operational efficiency and teamwork are key to achieving our objectives.Join us in our mission to transform the developer experience, as CODE embodies our core philosophy guiding our daily operations.

Role overview The Staff Software Engineer, Infrastructure position at Ripple in Geneva centers on developing and enhancing the backbone systems that power Ripple’s services. This role requires deep technical expertise and a commitment to delivering stable, high-performance infrastructure. What you will do Design, implement, and maintain essential infrastructure components Collaborate with engineering, product, and operations teams Find opportunities to improve system reliability and performance Strengthen the foundation for Ripple’s services to ensure scalability and resilience Impact Work in this role supports the smooth and efficient operation of Ripple’s services, helping the company meet current demands and prepare for future growth.

At Ripple, we are revolutionizing the way value is transferred globally, mirroring the speed and efficiency of information exchange. Our mission is ambitious yet attainable, as we deploy innovative crypto solutions for financial institutions, businesses, governments, and developers. By enhancing the global financial system, we strive to foster economic equality and create opportunities for individuals across various regions. Join us in this extraordinary journey to make a tangible impact while working alongside supportive colleagues who empower your growth.As a part of our expansion into the multi-trillion-dollar corporate finance sector through the acquisition of GTreasury in 2025, we are committed to integrating cutting-edge treasury management solutions into our technology framework, enabling real-time liquidity management across both traditional and digital assets.We invite you to be a part of shaping the future of corporate treasury and the infrastructure that supports the Internet of Value.We are looking for a creative and forward-thinking Staff Software Engineer who is passionate about developing a world-class platform in collaboration with a talented team. Your role will involve creating technical excellence in software application design, implementation, and maintenance, ultimately leading to exceptional outcomes.