Spectrum Engineer

Fuel Performance Lead

Blykalla AB

Help Us Prove a New Standard in Nuclear Fuel Are you a technically sharp, self-driven engineer or scientist who understands how nuclear fuel really behaves - and how to prove it with credible models? Join Blykalla and lead the fuel development and qualification effort that underpins the use of a novel nuclear fuel in an advanced reactor. This role puts you at the center of predicting, validating, and defending fuel behaviour for the western world’s first lead-cooled SMR. You’ll own the delivery of the fuel qualification programme, and strongly influence the development of models and codes that allow for producing regulator-ready evidence to understand our fuel performance. What we do at Blykalla At Blykalla we are developing the next generation of nuclear technology with our Advanced Small Modular Reactor (SMR), based on uranium nitride fuel and a compact, lead-cooled design. As Sweden’s only SMR developer, we are on a mission to decarbonize heavy industry and other energy-intensive sectors and deliver safe, scalable, and sustainable energy. What you’ll get to do Your mission is to ensure that we can predict, explain and justify fuel behaviour with confidence, using validated models, defensible assumptions and traceable data. Build & evolve fuel performance models ● Take ownership of the development, extension, and adaption of fuel performance models for a lead-cooled fast-spectrum operation, with a focus on physical mechanisms rather than black-box use. ● Lead the benchmarking of models against multiple fuel types (including nitride, oxide and metallic fuels) and fuel performance codes, to support comparison, validation, and fallback options. ● Understand and improve model behaviour by analysing why models work, where they break down, and what must be changed for lead-cooled fast spectrum operation. ● Work closely with experimental and design teams to specify experimental testing (in- and out-of-pile) and examinations that generate data relevant for model validation or development. Shape data, experiments, and model credibility ● Define what experimental and operational data are needed to support, challenge, and improve fuel performance models ● Work closely with experimental and design teams to specify irradiation tests and pre- and post-irradiation examinations that generate data relevant for model validation or development ● Integrate data from experiments, literature, and historical programmes to calibrate models, assess validity ranges, and reduce key uncertainties ● Contribute to cross-disciplinary activities between reactor physics, thermal hydraulics, materials, backend, safety and licensing to ensure design coherence, manufacturability, and regulatory compliance. Align modelling with fuel qualification, licensing and industrialisation ● In collaboration with the Head of Fuel and wider fuel team, drive forward the company's advanced fuel qualification and update our plans for how the company will meet them. ● Define, maintain and own the modelling basis used in fuel qualification, including scope, gaps, assumptions, acceptance criteria, and regulatory expectations ● Coordinate with international labs and irradiation facilities to secure the knowledge and services (irradiation, PIE) needed to reach qualification and licensing goals. ● Ensure Blykalla is pro-active in interfacing with regulatory bodies and relevant programs that support advanced fuel qualification/performance modelling (including, but not limited to: SSM, DOE/NRC and IAEA). ● Contribute to the establishment of modelling workflows, documentation, and quality practices that ensure traceability, reproducibility, and regulatory readiness Fuel Design & Development ● With the Head of Fuel and Head of Nuclear Safety, coordinate cross-disciplinary integration of the fuel design between nuclear design, thermal-hydraulics, materials group, fuel experimental and modelling teams to ensure design coherence, consistent modelling assumptions, manufacturability, and regulatory compliance." Technical leadership ● With the Head of Fuel, support the transfer of knowledge and development of the next generation of “subject matter experts” across both fuel performance authorities or cross-disciplinary technical leadership. ● Provide technical mentorship to early career individuals, disseminating your experience and knowledge. Experience & Qualifications ● At least 15-years post-degree experience in nuclear fuel modelling, development and/or qualification. ● Modelling and simulation experience covering code/model modification, development or critical assessment rather than “black-box” use ● Degree, ideally PhD in nuclear engineering, physics, chemistry or a closely related field ● Experience defining and integrating experimental data from irradiation tests, post-irradiation examinations, literature, or historical programmes to support and improve modelling and accelerate fuel qualification ● Ability to define what data and experiments are needed to support model credibility and uncertainty reduction, and to work effectively with experimental and qualification teams ● Demonstrated ability to understand fuel behaviour at the mechanism level and to diagnose why models work, where they fail, and how they must be improved ● Hands-on experience with fuel performance codes such as TRANSURANUS, FRAPCON/FRAPTRAN, BISON, or similar tools, including extending, adapting, or validating models ● Understanding of how modelling contributes to fuel qualification, safety arguments, and regulatory submissions ● Ability to communicate and defend modelling assumptions, limitations, and results in technical discussions with regulators, authorities, and partners ● Fluency in English; Swedish is an advantage ● Willingness to travel within Europe, North America and occasionally beyond ● Eligibility to work with nuclear materials in Sweden Location The position is based in Stockholm. Travel to partner sites and research facilities will be part of the role.

Regulatory Compliance Manager

Intertek Semko AB

Are you a confident expert in regulatory compliance with a strong customer focus and a passion for sharing knowledge? In this role, you’ll act as a trusted advisor to our customers, guiding them through regulatory requirements for market access — particularly across Europe. You’ll lead compliance projects, deliver expert training, and help shape and grow our Regulatory Compliance Project Management service. Key Responsibilities: · Help define and continuously develop and evolve our advisory service “Regulatory Compliance Project Management” · Advise customers on CE marking, UKCA, and EU regulatory requirements · Perform strategic compliance project management projects · Deliver training sessions and courses online and in-person · Support the sales team by identifying opportunities and contributing to business growth · Collaborate with colleagues and customers across international markets · Take ownership of your professional development while actively contributing to the growth and advancement of your area of responsibility Your background should involve: · Post-secondary degree or diploma in a relevant field or equivalent work experience · Excellent knowledge and experience of work with regulatory requirements, testing and certification of electrical products for market access · Strong knowledge within LVD, EMC, RED and MD · Strong knowledge of the CE marking process, in both theory and practice · Excellent communication skills, in both Swedish and English Ability to teach within the area of regulatory requirements for electrical products You combine strong technical expertise with a consultative, customer-focused approach. You thrive in a fast-paced, evolving environment and are able to adapt to changing priorities. You are both detail-oriented and strategic in your thinking, enabling you to see the bigger picture while maintaining high accuracy. You build strong relationships and inspire trust among colleagues and customers alike. You take ownership of your work and are driven to deliver results. Intertek offers: Meaningful work that contributes to product safety and reliability Opportunities for professional development and long-term career growth A collaborative and supportive work environment Exposure to a wide range of products, technologies, and industries The chance to work within a truly global organization Intertek is a leading Total Quality Assurance provider to industries worldwide. With a 125-year legacy of excellence, our global network delivers innovative and bespoke Assurance, Testing, Inspection, and Certification solutions for our customers' operations and supply chains. Our extensive global network of accredited laboratories and world-class experts are dedicated to addressing quality, safety, and sustainability across a vast spectrum of industries, including Medical, Lighting, Renewable Energy, HVACR, Appliances & Electronics, Connected World (IoT), and many more. Global manufacturers trust Intertek for faster, simpler, and more cost-efficient services that clear a path for their product's success. Join us and be a part of a team that continually exceeds client expectations and sets the standard for quality and accuracy.

Driftingenjör värme till Tornberget!

A-Talent Tech Management Sweden AB

Är du en teknikentusiast med ett starkt intresse för värmesystem och hållbara lösningar? Vill du arbeta i en roll där du får kombinera strategiskt ansvar med praktisk problemlösning? Då är uppdraget som driftingenjör inom värme och sanitet på Tornberget något för dig! Hos Tornberget får du arbeta nära den dagliga driften och utvecklingen av byggnadernas tekniska system, med ansvar för värme, tappvarmvatten, kallvatten och fjärrvärme. Du bidrar aktivt till en stabil, energieffektiv och hållbar fastighetsförvaltning genom optimering, uppföljning och teknisk utveckling av installationssystemen. I rollen får du möjlighet att påverka arbetssätt och tekniska lösningar inom en organisation som har höga ambitioner inom hållbarhet, kvalitet och långsiktigt förvaltarskap. Om rollenSom driftingenjör på Tornberget ansvarar du för drift och teknisk förvaltning av byggnadernas system för värme, tappvarmvatten, kallvatten och fjärrvärme. Du har en central roll i att säkerställa att systemen fungerar driftsäkert och energieffektivt samt i planering, uppföljning och genomförande av löpande underhåll och optimeringsåtgärder. Du arbetar nära förvaltare, entreprenörer och andra tekniska funktioner och ansvarar för uppföljning av energianvändning samt för att gällande myndighetskrav, kontroller och besiktningar uppfylls. Rollen innebär även att du bidrar med teknisk sakkunskap vid ny- och ombyggnadsprojekt samt medverkar i utvecklingen av tekniska riktlinjer och projekteringsanvisningar inom ditt ansvarsområde. Tjänsten är baserad i Haninge. Tjänsten är ett konsultuppdrag där du blir anställd av oss på A-Talent Tech och arbetar hos Tornberget. Uppdraget har start omgående och pågår initialt i cirka 6 månader. Huvudsakliga arbetsuppgifter• Ansvara för ramavtal och projekteringsanvisningar inom teknikområdet • Underhållsplanering samt genomförande/beställning av underhållsprojekt • Agera sakkunnig vid ny- och ombyggnation • Ansvara för myndighetskrav, besiktningar och teknisk uppföljning • Budgetarbete, prognoser och ekonomisk uppföljning • Omvärldsbevakning av ny teknik • Driva energieffektivisering och verka för hållbara materialval • Samarbeta med kollegor för att säkerställa kvalitet och effektiv drift För att lyckas i rollenVi söker dig som har en högskoleingenjörsutbildning inom energi, VVS eller motsvarande, alternativt motsvarande arbetslivserfarenhet. Du har flera års erfarenhet av arbete med värmeanläggningar och VS eller liknande tekniska installationer. Du har goda IT-kunskaper och är van att arbeta med tekniska system och uppföljning. Förutom din tekniska kompetens är du självgående, strukturerad och lösningsorienterad. Du trivs i en roll där du får ta ansvar, driva arbete framåt och samarbeta med andra funktioner. B-körkort är ett krav och du har en flexibel inställning till både operativa och strategiska arbetsuppgifter. Om TornbergetTornberget är en framåtsträvande fastighetsförvaltare som arbetar med ett brett spektrum av tekniska lösningar inom fastighet och energisystem. Företaget har ett tydligt fokus på hållbarhet och innovation, och som driftingenjör blir du en del av ett kompetent team som arbetar för att skapa effektiva och framtidssäkra lösningar. Arbetsvillkor• Plats: Haninge • Uppdragslängd: ca 6 månader • Start: Omgående • Arbetstid: Dagtid med möjlighet till viss flexibilitet Låter detta som din nästa utmaning? Välkommen med din ansökan! Intervjuer sker löpande och tillsättning kan ske innan sista datum.Vid frågor, kontakta ansvarig rekryterare Filippa Eklund på filippa.eklund@atalent.se