Senior Nuclear Safety Engineer
Blykalla is scaling quickly in order to industrialize our small modular reactor (SMR) concept. If you are passionate about nuclear technology and want to make a significant impact, join us!
Are you an expert in nuclear safety engineering with a passion for ensuring compliance and advancing groundbreaking technologies? Do you have a proven track record in safety analysis, regulatory frameworks, and leading complex documentation efforts? Join Blykalla, Sweden’s leader in Advanced Reactors, as our Senior Nuclear Safety Engineer and be at the forefront of shaping the next generation of sustainable nuclear energy.
What we do at Blykalla
At Blykalla, we’re transforming the future of nuclear power by developing innovative Advanced Reactors. Our mission is to create a new generation of nuclear energy systems that are safer, more efficient, and environmentally friendly. As Sweden’s only developer of SMRs, we’re at the forefront of a groundbreaking industry.
What you’ll get to do
As a senior nuclear safety engineer responsible for the production of SAR documentation, you will play a pivotal role in the development of the First Preliminary Safety Analysis Report (FPSAR) for SEALER reactors. This is a high-impact position where your expertise will directly contribute to Blykalla’s mission to secure regulatory approvals and achieve critical project milestones. You will lead and manage the creation of complex technical documentation such as safety analysis and work closely with our design team, ensuring full compliance with regulatory requirements and adherence to global best practices in nuclear safety.
Key Responsibilities:
- Lead the development, review, and delivery of the First Preliminary Safety Analysis Report (FPSAR) for SEALER reactors.
- Manage cross-functional inputs from the engineering, materials, and safety teams to produce high-quality, cohesive documentation.
- Collaborate with regulatory authorities, particularly the Swedish Radiation Safety Authority (SSM), to ensure compliance with national and international standards.
- Guide and mentor junior nuclear safety engineers in SAR writing, fostering skill development and ensuring consistency in documentation.
- Conduct detailed analysis of reactor safety functions, accident scenarios, and mitigation strategies to document the safety case effectively.
- Stay abreast of advancements in nuclear safety regulations, materials, and reactor technologies, integrating relevant updates into the SAR.
- Participate in internal and external audits of safety documentation, ensuring accuracy and regulatory alignment.
Who you are
You will be part of a highly skilled team with a can-do attitude. We value Team chemistry and strive to create a workplace that you enjoy coming to. There are however a few things that we think will help you to succeed in this role, these are:
- Master’s or Ph.D. in nuclear engineering, mechanical engineering, physics, or a closely related field.
- At least 8-10 years in safety analysis, regulatory compliance, or technical documentation for nuclear reactors or similar high-stakes engineering projects.
- Demonstrated expertise in preparing safety analysis documentation (e.g., PSARs or FSAR) for advanced reactors or nuclear facilities.
- Deep knowledge of nuclear safety principles, regulatory frameworks (e.g., SSMFS, NRC, IAEA standards), and defense-in-depth concepts.
- Familiarity with reactor simulation and safety analysis tools (e.g., RELAP5, TRACE, ANSYS, or equivalent).
- Strong leadership skills, with a track record of coordinating complex, multi-disciplinary projects.
- Exceptional written communication skills and an ability to distill complex technical concepts into clear, regulatory-compliant documents.
- Fluency in the Swedish language, both in speech and writing
- Fluent in the English language, both in speech and writing
Location
This position is for our office in Stockholm.
So, what do you think?
If you are ready to take on this exciting challenge and play a pivotal role in nuclear safety, apply now and help shape the future of the nuclear energy industry!
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. We value this, and we encourage everyone to be a part of changing the way the world thinks about power supply!
Note: We encourage applicants from diverse backgrounds and are an equal-opportunity employer.
Due to GDPR, we do not accept applications over email.
We are not open to external help from recruitment agencies.
- Team
- Legal & Regulatory
- Locations
- Stockholm

About Blykalla
Blykalla is Sweden's only SMR vendor, commercializing lead-cooled fast reactors for industrial use. Based on 20+ years of research, their SEALER technology is a compact 55 MWe unit designed to offer a safe, efficient, and scalable power solution. With a strong foundation within Sweden, Blykalla is well positioned to deliver Europe's first advanced SMR, providing reliable and sustainable baseload energy to power AI and clean industries.
Backed by partners such as Uniper, ABB, KSB, Höganäs, and the Royal Institute of Technology, Blykalla has secured close to EUR 50 million in funding, including a SEK 99 million grant from the Swedish Energy Agency and a EUR 17 million investment from the EU. The company plans to complete its first SEALER reactor by 2030 and begin serial production in the 2030s. By 2050, their technology could generate up to 500 TWh of clean electricity annually, cutting global CO₂ emissions by 0.5 gigatons each year.
Senior Nuclear Safety Engineer
Blykalla is scaling quickly in order to industrialize our small modular reactor (SMR) concept. If you are passionate about nuclear technology and want to make a significant impact, join us!
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