Blykalla AB jobb

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 an senior core designer or core design methods developer to join our Nuclear Engineering & Safety team in Stockholm. In this role, you will design and analyze fast reactor core configurations, optimize fuel loading patterns, develop associated methods and contribute to safe, efficient, and economical operation of our nuclear reactors throughout their fuel cycles. Design and optimize reactor core variants for our cutting-edge lead-cooled fast reactor designs Perform neutronic and burn-up analysis using both industry-standard and new codes Develop and validate core design models and methodologies Prepare technical documentation, design reports, and licensing submittals for regulatory review Stay current with advances in core design, computational methods, and regulatory requirements Who’ll you’ll get to work with The senior core designer sits in the Nuclear engineering & safety team within Blykalla, and reports to the head of Nuclear engineering & safety. We are a diverse team that is passionate about our work and our company. 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 nuclear engineering, physics, or a related field At least 5 years of industry experience in reactor core design, reactor physics, neutronics, fuel management, or associated methods development including verification & validation of computational tools Proficiency with Monte Carlo neutron transport codes and experience setting up and running full-core or assembly-level models Familiarity with the full core design workflow including cross-section generation, uncertainty propagation, depletion analysis and burnup-dependent reactivity feedback characterization Strong understanding of reactor physics, thermal hydraulics, and fuel performance Familiarity with relevant regulatory frameworks Excellent analytical, problem-solving, and technical writing skills Fluency in English, spoken and written Meritorious skills: Programming skills, e.g. in Python, Fortran, or MATLAB 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. So, what do you think? Joining our team means being part of a supportive and innovative environment where your ideas are valued and your expertise is recognized. You will have the opportunity to work with industry leaders and contribute to the safe and sustainable use of nuclear power. 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 – 76 000/ 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 This is a 14-month temporary position with the possibility of permanent employment. The position is based at our office in Stockholm. What you’ll get to do Own monthly and quarterly group reporting, consolidation, budgeting, forecasting, and key financial metrics across the Group. Coordinate accounting, financial reporting, audit, annual reporting, tax, and IFRS matters together with external accounting firms and advisors. Develop and maintain the Group’s internal control framework, ensuring robust financial processes as the organization scales. Drive continuous improvement of Finance systems, processes, and reporting infrastructure. Analyze business performance, identify trends, risks, and opportunities, and develop decision-support tools and KPI frameworks for leadership and project teams. Support the Group’s international expansion and develop Finance and reporting requirements across jurisdictions. Take ownership of the day-to-day Finance function, acting as the central Finance point of contact across the organization and working closely with leadership, project teams, and external partners. Who you’ll get to work with The Business Controller sits in the Finance Team within Blykalla and reports to the CFO. 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 you succeed in this role; Degree in Finance, Economics, Industrial Engineering, or equivalent. At least 5 years of experience in controlling, financial analysis, or business planning. Strong understanding of budgeting, forecasting, management reporting, and financial analysis, with the ability to independently drive processes from start to finish. Comfortable working across accounting, controlling, systems, and business partnering in a fast-moving organization. Proficient in Excel; experience with BI/ERP tools is a plus. 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 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 Business Contoller 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.

Plant Engineering · Stockholm Blykalla is scaling quickly to industrialize our small modular reactor (SMR) concept. If you are passionate about nuclear technology and want to make a meaningful impact, join us. What we do at Blykalla Blykalla is a Swedish deep-tech company developing lead-cooled small modular reactors. Our compact reactor design combines high safety with a simple, cost-effective and scalable approach to delivering clean, reliable baseload energy that complements solar and wind power. The role As Reliability Engineer, you will own reliability, availability and maintainability (RAM) engineering for Blykalla’s SEALER-55 lead-cooled fast reactor (LFR). You will work across assigned plant areas, systems and work packages within Plant Engineering, delivering quantitative reliability analysis that supports the plant design and the probabilistic safety assessment (PSA). You will establish and apply Blykalla’s RAM, FMEA and FMECA framework, ensuring reliability and availability targets are translated into design, redundancy, sparing, testing and maintenance requirements. You will assess how design and maintenance decisions affect plant availability and lifecycle performance, and support the project from design through procurement, construction and handover to commissioning and operations. What you’ll do RAM engineering and modelling Establish and maintain RAM, FMEA and FMECA methods, templates, criticality criteria, data sources and analysis assumptions. Define reliability design bases, RAM targets, modelling methodology and requirements for assigned areas. Build and maintain reliability block diagrams, fault trees and availability models, including Markov or Monte-Carlo simulations. Work in RiskSpectrum for fault-tree and PSA-aligned modelling, alongside relevant RAM tools such as ReliaSoft, Isograph, GRIF or Maros/Taro. Flow reliability, availability and maintainability requirements into specifications, data sheets and supplier packages. Analysis and technical input Perform and review RAM studies, FMEA/FMECA, reliability-centred maintenance analyses, criticality ranking, spares and logistics modelling, and lost-production analyses. Quantify the impact of redundancy, maintenance strategies, test intervals and sparing on availability and lifecycle performance. Develop reliability data and failure-rate estimates using sources such as ISO 14224 and OREDA, including Weibull/life-data analysis and common-cause assumptions. Provide component failure data, maintenance assumptions and common-cause inputs to the PSA and safety case. Interfaces, suppliers and delivery Coordinate with process, mechanical, rotating equipment, electrical, I&C, civil and structural, layout, safety and licensing, and operations and maintenance teams. Identify and resolve issues related to single points of failure, common-cause vulnerabilities, testability, maintainability and maintenance access. Set and review RAM requirements for RFQs and supplier packages, including reliability data, FMECA and reliability demonstration requirements. Contribute to estimates, schedules, risk reviews, design reviews, RFIs, site queries and change requests, including assessment of availability impacts. Capability building Mentor engineers and improve reliability methods, templates, checklists and data libraries. Help build a scalable reliability engineering capability that supports Blykalla’s plant-as-a-product mindset, modular design and DfMA approach. Typical deliverables Reliability design bases and RAM targets; reliability block diagrams, fault trees and availability models; RAM study reports; FMEA/FMECA and criticality registers; RCM analyses; reliability data libraries; PSA inputs; supplier review comments; interface registers; and change-control or handover inputs. Who you are You have: At least 6 years of hands-on experience in reliability or RAM engineering, including nuclear experience and RAM/PSA-support analysis for nuclear plants or systems. Experience leading reliability engineering across a major plant area, full project or several complex work packages. Strong quantitative RAM modelling skills and practical experience with RiskSpectrum. Knowledge of relevant reliability and dependability standards, including IEC 60300, IEC 61078, IEC 61025, IEC 61165, IEC 61649 and IEC 60812. Familiarity with ISO 14224, OREDA, nuclear reliability data, and relevant IAEA, regulatory and PSA guidance such as US NRC/NUREG and Swedish SSM guidance. The ability to work across technical disciplines, manage ambiguity and balance technical rigour with practical delivery. A collaborative, transparent and solution-oriented approach, with an interest in coaching others and strengthening the discipline. What we offer You will join a diverse and highly motivated Plant Engineering team and report to the Manager of Plant Engineering. This is an opportunity to help shape the reliability approach for a first-of-a-kind reactor programme and contribute directly to the future of clean nuclear energy. Location: Stockholm Salary range: SEK 60,000–76,000 per month, depending on experience and qualifications. Reference & background checks As part of our recruitment process, we conduct background checks on all candidates and may conduct reference checks where relevant. We handle personal data in accordance with applicable data-protection regulations. We do not accept applications via email and are not open to external recruitment-agency support. Note on AI use: Blykalla may use AI for administrative support, such as note-taking, interview documentation and reporting. Every application is reviewed directly by our recruiting team, and AI does not influence candidate evaluation or hiring decisions.

What we do at Blykalla Blykalla is a Swedish deep-tech company developing next-generation small modular reactors (SMRs) to deliver clean, safe, and reliable energy. Our lead-cooled reactor design enables high safety in a compact format, making it scalable and cost-efficient — and a strong complement to renewable energy. We are now entering a phase where structured, high-quality engineering execution is critical to moving from design to reality — and this is where you come in. What you’ll get to do As Senior Project Engineering Manager (PEM), you lead the engineering execution of Blykalla’s SEALER reactor programme. You sit at the intersection of technical leadership, project delivery, and regulatory compliance — ensuring that multidisciplinary teams move in sync, milestones are met, and engineering output is robust and licensable. This is a senior, hands-on leadership role where you both define how we work and ensure it gets done. You translate complex technical requirements into clear execution plans, align teams across disciplines, and create the structure needed to deliver a first-of-a-kind nuclear system. You will also play a key role in shaping how we scale engineering at Blykalla, driving the adoption of design for fabrication and modularization, model-based engineering, PLM systems, and data-driven workflows. Responsibilities Engineering execution & technical leadership Define and drive a clear engineering execution plan with an aligned schedule, deliverables, cost, and responsibilities Lead coordination across disciplines (reactor, mechanical, electrical, I&C, structural, safety) to ensure system integration Ensure effective engineering workflows, design control processes, and validation approaches are implemented Ensure engineering output meets quality, safety, and regulatory requirements throughout the lifecycle Risk, safety & licensing Identify and manage technical and regulatory risks early, before they impact delivery Ensure traceability and documentation needed for licensing and safety case development Lead key engineering risk methodologies such as FMEA and probabilistic risk assessment Interface with regulatory bodies and certification authorities Cross-functional collaboration Act as the central engineering interface across project management, engineering teams, suppliers, and regulators Align stakeholders and maintain momentum through structured coordination Support procurement with nuclear-grade technical requirements and supplier evaluation Promote a strong safety culture and design-for-safety mindset Ensure early designs implement pre-fabrication and modularization principles, and get early contractor engagement as required. Delivery, planning & improvement Contribute to realistic planning of engineering scope, resources, cost,, and timelines Track progress and ensure predictable delivery against milestones Drive continuous improvement in how we execute and scale engineering Ensure smooth handover from engineering to manufacturing, construction, and operations Who you’ll work with You will be part of the Plant Engineering Team and work closely with discipline leads, the CTO, project managers, and external partners. You will be a key integrator across technical domains in a team that is highly driven and committed to building something meaningful. Who you are Domain expertise MSc or equivalent in Mechanical, Nuclear, Systems, Electrical Engineering, or similar Strong experience leading engineering delivery in complex, regulated environments (e.g. nuclear, aerospace, oil & gas, defence) Proven ability to coordinate multidisciplinary teams through complex programme phases Solid understanding of relevant regulatory frameworks and standards (SSM, IAEA, ASME, IEC, IEEE) Experience with risk methodologies such as FMEA and probabilistic risk assessment Familiarity with modern engineering environments (e.g. PLM, model-based engineering) How you work You bring structure and clarity to complex engineering challenges You balance technical rigour with practical delivery You anticipate risks and act early You are comfortable operating in ambiguity and building processes as you go Cultural contribution You lead with clarity and accountability, and bring people with you You build trust through transparency and reliability You are motivated by solving hard, first-of-a-kind problems You care about how teams work together and contribute to a strong, collaborative environment Fluent in English; Swedish is a plus Why join Blykalla Work on first-of-a-kind nuclear technology with real global impact Take on a high-ownership role at the core of our delivery Be part of a fast-growing, ambitious, and highly skilled team Help shape how next-generation nuclear engineering is done Location Stockholm Apply If you want to play a key role in bringing next-generation nuclear technology from concept to reality, we’d love to hear from you. We are proud to foster an inclusive workplace and believe that diversity of perspectives leads to better teams and better technology. We do not accept applications via email. We are not open to external recruitment agencies.