Blykalla AB

WHAT WE DO AT BLYKALLA Blykalla is a global leader in advanced nuclear technology, commercialising the next generation of clean, reliable energy through its lead-cooled reactor, the SEALER. By combining decades of specialised research with world-class partners, Blykalla is building the backbone of the global AI and industrial economy. For more information, visit https://www.blykalla.com. WHAT YOU’LL GET TO DO We're seeking a Senior Thermal-Hydraulics Code Validation Engineer to join our Nuclear Engineering & Safety team, working from Stockholm or Oskarshamn. In this role, you will work on experiments with the aim of validating thermal-hydraulics system codes for use in the design and safety analysis of our lead-cooled fast reactors. More specifically, you will * Coordinate, specify and analyze experiments to be run in our ARTS (Advanced Reactor Testing Site) facility in Oskarshamn. * Act as a technical lead for engineers and technicians working on both the experiments and the simulation codes. * Contribute to our validation program for thermal hydraulics system codes and associated methodologies. * Stay current with advances in thermal hydraulics, computational methods, and regulatory requirements. WHO YOU’LL GET TO WORK WITH The thermal-hydraulics validation engineer sits in the Nuclear Engineering & Safety team within Blykalla, and reports to the manager of Nuclear Engineering & Safety. We are a diverse team that is passionate about our work and our company. You can choose to work from any of our offices in Stockholm, Oskarshamn or ARTS (at Simpevarp). In case of work from the Stockholm office, frequent (monthly) travel to the ARTS site is expected. WHO YOU ARE You will be part of a highly skilled team with a can-do attitude. We value personal 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: * Master's degree in physics, engineering or a related field * Hands-on experience in designing, commissioning, and performing thermal-hydraulic experiments, including instrumentation and data analysis * Familiarity with building validation envelopes for system codes used in nuclear safety analysis such as BISON (BWR), TRACE, RELAP, APROS or similar as well as for CFD tools * Solid understanding of the physics and phenomena involved in thermal hydraulics simulations * A structured way of working, together with excellent problem-solving and technical writing skills * Fluency in English, spoken and written Meritorious skills: * Working experience in safety analysis of PWR, BWR or advanced reactors * Working experience from liquid metal applications * Experience in supporting nuclear licensing activities or in regulatory interaction * Fluency in Swedish, spoken and written 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, Oskarshamn or ARTS (Simpevarp) So, what do you think? Don't miss the chance to be at the forefront of revolutionizing nuclear power. Join our team as Senior Thermal-Hydraulics Code Validation 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! Reference & Background Checks As part of our recruitment process, we conduct background checks on all candidates. We may also conduct reference checks to gain a well-rounded understanding of your professional experience, performance, and ways of working. This includes both references provided by you and, where relevant, conversations with other professional contacts who have worked closely with you. We strive to be transparent about our reference-checking process and handle all personal data in accordance with applicable data protection regulations. Any additional references will be sought with professional judgment and only when considered relevant to the role. Salary Range: SEK 57 000 - 95 000 / month, depending on experience and qualifications. We offer competitive compensation aligned with our internal salary framework and growth potential in the role. We do not accept applications via email.  We are not open to external help from recruitment agencies.  Note on AI Use: Blykalla may use AI technology to assist with certain administrative aspects of the hiring process, such as note-taking, interview documentation, and reporting. However, every resume and application is reviewed directly by our recruiting team. AI tools are used solely for operational support and do not influence candidate evaluation or hiring decisions.

WHAT WE DO AT BLYKALLA Blykalla is a global leader in advanced nuclear technology, commercialising the next generation of clean, reliable energy through its lead-cooled reactor, the SEALER. By combining decades of specialised research with world-class partners, Blykalla is building the backbone of the global AI and industrial economy. For more information, visit https://www.blykalla.com. WHAT YOU’LL GET TO DO We are looking for a Modularization Lead to make our SEALER reactor cost-competitive by design. Small reactors lack the economies of scale of large plants – our business case depends on a reactor built in factories, from standard components, with every design choice weighed against cost and value. You will own that agenda across our reactor development program. This is a role for someone who wants to shape the product, not review it afterwards. You will sit at the table where design decisions are made and have the mandate to change how they are made. Key responsibilities include: * Own and drive design-to-value across our reactor development program – break cost, availability, and schedule targets down to system level and hold design choices against them * Implement design-to-value ways of working in the design and engineering team – processes, design reviews, rules, and tools that make cost and value part of every design decision. * Define and own the modularization strategy and roadmap – degree of modularization, module boundaries, standardized interfaces, and the path from first-of-a-kind to fleet. * Drive component standardization and COTS – standard before custom, across systems and plant units. * Enable a reactor designed for factory production – off-site fabrication, pre-testing, transport, and fast site assembly, together with suppliers. WHO YOU’LL GET TO WORK WITH The Modularization Lead sits in the Product team within Blykalla, and reports to the Head of Product. You will work daily with design engineering, cost engineering, procurement, and construction, and closely with suppliers and partners. 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. You have taken a complex engineered product from one-off engineering to standardized, factory-built modules – and you know that cost is decided at the drawing board, not on site. You are comfortable challenging designers on why a component is custom, and credible enough that they listen. 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: * 8+ years in modularization, design-to-value/design-to-cost, or industrialization of complex engineered products (e.g., shipbuilding, offshore, process plants, aerospace, automotive, or energy). * Proven track record of moving a product towards standardized, factory-built modules and COTS components. * Hands-on with design-to-value methods – target costing, cost teardowns, value engineering, and trade studies. * Strong understanding of interface management, manufacturing, transport, and site assembly constraints. * Ability to change how engineering teams work – introducing processes that stick, not just documents. * Clear and structured communication – you can make the cost case to both engineers and executives. * Fluent in English, spoken and written. * Fluency in Swedish is a plus. We don’t expect candidates to already know the nuclear industry – we are looking for someone who has industrialized complex products elsewhere and wants to apply it to a first-of-a-kind reactor. Exposure to some of the areas below is a plus, not a checklist. Meritorious skills: * Experience from nuclear or other regulated, safety-classified industries. * Modular plant construction – e.g., structural modules, skid-based process modules, open-top installation. * Modular product architecture or platform design in serial production. * 3D/BIM, PLM, or digital tools for layout, cost tracking, and decision support. * Experience building a new function or capability from scratch. 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? Don't miss the chance to be at the forefront of revolutionizing nuclear power. Join our team as Modularization Lead 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! Reference & Background Checks As part of our recruitment process, we conduct background checks on all candidates. We may also conduct reference checks to gain a well-rounded understanding of your professional experience, performance, and ways of working. This includes both references provided by you and, where relevant, conversations with other professional contacts who have worked closely with you. We strive to be transparent about our reference-checking process and handle all personal data in accordance with applicable data protection regulations. Any additional references will be sought with professional judgment and only when considered relevant to the role. We offer competitive compensation aligned with our internal salary framework and growth potential in the role. We do not accept applications via email.  We are not open to external help from recruitment agencies.  Note on AI Use: Blykalla may use AI technology to assist with certain administrative aspects of the hiring process, such as note-taking, interview documentation, and reporting. However, every resume and application is reviewed directly by our recruiting team. AI tools are used solely for operational support and do not influence candidate evaluation or hiring decisions.

WHAT WE DO AT BLYKALLA Blykalla is a global leader in advanced nuclear technology, commercialising the next generation of clean, reliable energy through its lead-cooled reactor, the SEALER. By combining decades of specialised research with world-class partners, Blykalla is building the backbone of the global AI and industrial economy. For more information, visit https://www.blykalla.com. WHAT YOU’LL GET TO DO * Run the monthly close across the Group's companies — reconciliations, accruals, and reporting packages that feed group consolidation. * Be the day-to-day contact for our external accounting firm, coordinating bookkeeping across subsidiaries and making sure each close lands on time and in the right format. * Own cash flow and liquidity planning, including rolling forecasts and payment planning. * Follow up actuals against budget, analyze variances, and be the first point of contact for project managers who need to understand their numbers. * Prepare supporting documentation for audits and annual reporting, and work with our auditors on the schedules they request. * Perform and document internal controls, and help strengthen the routines behind them as we scale. * Act as a go-to person for finance questions across the organization. WHO YOU’LL GET TO WORK WITH 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 you succeed in this role; * Degree in Finance, Economics, Industrial Engineering, or equivalent. * 2-3 years in accounting or financial control, ideally from an audit firm, an accounting firm, or a group with several legal entities. * Comfortable owning a monthly close end to end and working independently against deadlines. * Curious about the business, not only the ledger — you want to understand why a number moved, not just that it did. * Strong in Excel, and quick to find your way in new systems. * Communicative and collaborative – you create clarity and trust across teams. * Fluent in English; Swedish is a plus. Meritorious skills: * Experience from a fast-growing, international, or project-driven organization. Location The position is based at our office in Stockholm. So, what do you think? Don't miss the chance to be at the forefront of revolutionizing nuclear power. Join our team as Financial controller 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! Reference & Background Checks As part of our recruitment process, we conduct background checks on all candidates. We may also conduct reference checks to gain a well-rounded understanding of your professional experience, performance, and ways of working. This includes both references provided by you and, where relevant, conversations with other professional contacts who have worked closely with you. We strive to be transparent about our reference-checking process and handle all personal data in accordance with applicable data protection regulations. Any additional references will be sought with professional judgment and only when considered relevant to the role. Salary Range: SEK 43 000 – 50 000/ month, depending on experience and qualifications. We offer competitive compensation aligned with our internal salary framework and growth potential in the role. We do not accept applications via email.  We are not open to external help from recruitment agencies.  Note on AI Use: Blykalla may use AI technology to assist with certain administrative aspects of the hiring process, such as note-taking, interview documentation, and reporting. However, every resume and application is reviewed directly by our recruiting team. AI tools are used solely for operational support and do not influence candidate evaluation or hiring decisions.