
CERN · Unknown
Du kommer att arbeta som säkerhetsingenjör med ansvar för att koordinera, granska och säkerställa att CMS-experimentets tekniska system och installationer följer gällande säkerhetskrav och föreskrifter.
Du kommer att arbeta som säkerhetsingenjör med ansvar för att koordinera, granska och säkerställa att CMS-experimentets tekniska system och installationer följer gällande säkerhetskrav och föreskrifter.
As a member of the CMS Safety Office, you will participate in all safety-related activities at the CMS experimental sites during the Long Shutdown 3, when both the detector and the infrastructure will undergo major upgrades. In particular, you will take a leading role in the technical review of all CMS fire extinguishing systems and safety monitoring systems to assess their design, coverage and suitability for the CMS upgrade. You will contribute to the review, testing, and commissioning of the CMS Alarm Action Matrix in collaboration with all the relevant stakeholders, as well as organise regular reviews of the systems and activities and guide risk assessments for the collaboration's teams.
Contribute to the definition, review, testing, and validation of safety system logic, in particular the CMS Alarm Action Matrix.
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Initial experience working with control and/or safety systems (e.g. monitoring systems, alarms, interlocks, or similar).
Exposure to electromagnetic fields under certain exposure conditions.
Given the occupational health risks associated with this position, the selected candidate must obtain medical clearance before a contract offer is confirmed.
The Engineering Department (EN) pushes forward the limits of technology so that physicists can carry out their research. Within the EN department, the Cooling and Ventilation (EN-CV) group is responsible for the design, the construction, the operation and the maintenance of the cooling and ventilation plants for large energy physics accelerators, experiments and technical facilities. The EN-CV group pursues sustainable cooling and ventilation systems enhancing energy savings and recovery. You will join the Methods, Store and Electrical Section (CES), which oversees the operation and maintenance of water treatment systems, as well as the development of maintenance procedures, implementation of computerised maintenance management (CMMS), documentation management, spare parts store management and electrical works. Are you a qualified and proactive and specialised in industrial water treatment systems, ready to contribute to a unique working environment at the heart of one of the world's most complex scientific installations? In this role, you will contribute to the analysis, optimisation and development of water treatment systems used for cooling and ventilation installations. You will ensure system performance, reliability and compliance with environmental and safety requirements, while supporting operation and maintenance activities. For full job description and application process please visit https://careers.cern/jobs/technical-engineer-for-water-treatment-systems/
What we do at Blykalla Blykalla is a Swedish deep-tech company at the forefront of the nuclear industry, pioneering the development of small modular reactors that provide clean, safe, and reliable energy. Thanks to lead-cooling, we achieve high safety in a very compact format, allowing for a simple and cost-effective design that can be mass-produced. Our unique reactor design will provide safe and green baseload energy that perfectly complements solar and wind power. What you’ll get to do As a Rotating Machine Lead Engineer, you will own the rotating equipment portfolio of the SEALER plant — from the Primary Coolant Pumps (PCPs) submerged in molten lead above 400 °C, where conventional bearing and sealing solutions don't apply, to the secondary-side feedwater and condensate pumps and the full set of auxiliary and safety-related pumps the plant requires. It is a technically demanding portfolio that spans genuinely novel engineering on the primary side and rigorous nuclear-grade discipline throughout: Define functional and design requirements for the full rotating equipment portfolio — PCPs in molten lead, secondary-side feedwater and condensate pumps, and all auxiliary, safety-related, and service pumps. Develop design basis documentation and lead trade-off studies on pump configuration, drive arrangement, sealing strategy, and bearing technology. Set priorities across the portfolio — distinguishing where Blykalla-specific engineering is warranted from where standard industrial solutions suffice. Act as Blykalla's technical counterpart to pump suppliers and engineering partners, challenging design choices and steering solutions to fit plant requirements across hydraulics, sealing, materials, and maintainability. Define the scope of hydraulic, rotordynamic, and structural analyses; brief specialists; and critically review their outputs. Use hand calculations to sanity-check results. Own supplier work packages: evaluate proposals, lead design reviews, and keep pump development aligned with plant requirements and schedule. Support test rig development when needed to advance tailor-made pumping solutions. Collaborate across internal teams and with academic and industrial partners. Who’ll you’ll get to work with The Rotating Machine Lead Engineer sits in the Fluid Systems Engineering Team within Blykalla, and reports to the Manager of Fluids Engineering. We are a diverse team that is passionate about our work and Blykalla. Who you are You will be part of a highly skilled team with a can-do attitude. We value personnel chemistry and strive to create a workplace where you enjoy coming to. There are however a few things that we think will help for you to succeed in this role, these are: More than 5 years of professional experience as a rotating equipment engineer. Degree in mechanical, energy, nuclear, or a closely related discipline. A meaningful portion of your experience at a pump manufacturer or rotating equipment OEM, ideally in a role combining hydraulic and mechanical design with workshop and field interface, or equivalent experience as a discipline lead on the operator or EPC side. Strong working knowledge of centrifugal and/or axial pump design, including rotordynamics, bearing selection, mechanical seals or seal-less concepts, and applicable design codes and standards such as API 610, API 682, ASME III, PED, or RCC-M. Hydraulic and mechanical fundamentals sufficient to steer and critically review calculations performed by specialists, including the ability to perform hand calculations on head, NPSH, power, and basic rotordynamics to sanity-check results. Comfort writing clear technical specifications, reviewing supplier deliverables critically, and managing a multi-vendor technical dialogue from concept through qualification. Familiarity with CAD tools and engineering software. Fluent in English, spoken and written. Fluency in Swedish is a plus. Meritorious skills: Hands-on experience with heavy liquid metal pumps (lead, lead-bismuth, sodium). Experience with reactor coolant pumps in light-water reactors. Experience with high-pressure feedwater or boiler feed pumps in conventional or nuclear steam plants. Familiarity with magnetic drives, canned-motor pumps, or other seal-less concepts. Experience with rotordynamic, CFD, or FEA analyses; the priority is the ability to define, commission, and review such analyses rather than execute them. Prior experience coordinating multidisciplinary design work or managing supplier technical interfaces. If you are not sure that you are 100% qualified but are up to the challenge, we encourage you to apply. Location This position is for our office in Stockholm. So, what do you think? Take the chance to be at the forefront of revolutionizing nuclear power. Join our team as Rotating Machine Lead Engineer and help shape the energy landscape of tomorrow. Apply today with your resume and a cover letter highlighting your relevant experience and achievements. We are proud to foster an inclusive workplace free from discrimination. We strongly believe that diversity of experience, perspectives, and background will lead to a better environment for our employees and a better product. This is something we value deeply and we encourage everyone to be a part of changing the way the world thinks about power supply! We do not accept applications via email. We are not open to external help from recruitment agencies.
We are seeking an experienced High Voltage Commissioning Engineer to support the commissioning, testing, and energization of high-voltage substations, transformers, switchgear, and associated power system equipment for large-scale energy, infrastructure, and industrial projects. The successful candidate will play a critical role in ensuring the safe and reliable startup of electrical systems while supporting project execution, testing, troubleshooting, and handover activities. Responsibilities Commission high-voltage (HV) equipment and substations Execute protection relay testing and verification activities Perform transformer, switchgear, and electrical equipment testing Support energization and startup activities Troubleshoot technical and commissioning-related issues Review commissioning procedures, test protocols, and engineering documentation Coordinate commissioning activities with engineering, construction, and operations teams Produce commissioning reports and technical documentation Support FAT, SAT, site testing, and handover activities Ensure compliance with safety standards, project requirements, and commissioning procedures Requirements Bachelor's degree in Electrical Engineering or a related discipline Experience commissioning HV substations and electrical equipment Strong understanding of power systems and substation infrastructure Knowledge of protection and control systems Experience with transformers, switchgear, relays, and HV testing activities Strong troubleshooting and analytical skills Excellent communication and documentation abilities Fluent English, both written and spoken Preferred Experience High-voltage (HV) and medium-voltage (MV) substations Protection relay testing and commissioning IEC 61850 and substation automation systems SCADA and communication systems Utility, EPC, renewable energy, or industrial power projects FAT, SAT, commissioning, and energization activities International project experience Site-based commissioning work