Blykalla is developing next-generation nuclear technology through the SEALER program, requiring a dedicated facility for structured, safe, and high-quality testing of systems, components, and materials. We are looking for an Advanced Reactor Testing – Site Lead who will take operational ownership of the Advanced Reactor Testing Site (ARTS), ensuring that all testing activities are carried out safely, in a controlled manner, and with high technical integrity.

In this role, you will help ensure that ARTS operates as a disciplined, reliable, and scalable test facility, enabling engineering teams to validate advanced reactor technologies under controlled and compliant conditions.

What we do at Blykalla

Blykalla is developing the next generation of nuclear technology with our Small Modular Reactor (SMR) based on innovative fuel, materials, and reactor designs. As Sweden’s only SMR developer, we are on a mission to decarbonize industries and enable safe, scalable, and sustainable energy solutions. Our technology uses uranium nitride fuel and lead coolant, creating novel challenges and opportunities for the fuel cycle and supporting systems.

What You’ll Get to Do

As Advanced Reactor Testing – Site Lead, you will take a central role in ensuring that testing at ARTS is prepared, coordinated, and carried out safely and effectively. You will work closely across engineering, commissioning, and operations to create a structured environment where testing can be performed reliably.

From Test Intent to Operational Readiness

• Collaborate with engineering and Test & Validation teams to translate test requests into clear and executable onsite activities, ensuring shared understanding of scope, boundaries, and conditions for safe execution

• Prepare the facility for testing by aligning infrastructure, materials, and system interfaces, including the safe and controlled handling of hazardous materials such as lead

• Guide the structured installation and commissioning of test rigs, supporting teams in ensuring systems are integrated, verified, and ready for safe and reliable operation

Controlled Test Execution & Operational Discipline

• Support and ensure that testing proceeds when conditions are understood, risks are addressed, and setups are ready, acting as a key point of coordination and decision-making onsite

• Coordinate and facilitate safe and controlled test execution, helping maintain alignment across concurrent activities and adherence to defined operating limits

• Help manage deviations and unexpected events in a structured way, ensuring clear communication, proper escalation, and appropriate actions, including stopping work when needed

Lifecycle Completion, Safety & Facility Governance

• Oversee and support the safe operation, maintenance, modification, and decommissioning of test setups, ensuring continuity and control throughout their lifecycle

• Take delegated responsibility for the site work environment (health, safety, and environment), fostering safe behaviours, risk awareness, and continuous improvement

• Ensure that personnel and activities meet the requirements for working in a controlled test environment, including fitness for work with hazardous materials, while supporting effective coordination across stakeholders

Where This Role Can Take You

You will play an important role in establishing and operating ARTS as a structured and reliable test facility, supporting validation of SEALER technologies across development stages. As ARTS and the SEALER program evolve, the role can expand towards broader responsibility for test operations and facility management, as well as shaping how testing and operations are structured within SEALER.

Who You Are

You are a structured and safety-driven engineer or operations professional who enjoys working at the intersection of testing, engineering, and real-world execution. You are comfortable navigating complex and evolving environments, helping teams stay aligned while ensuring safe and reliable outcomes. You bring a pragmatic mindset, strong situational awareness, and a collaborative approach to translating plans into disciplined execution onsite.

We believe you have:

• A relevant engineering degree (mechanical, nuclear, industrial, or similar)

• Experience in test operations, commissioning, or industrial facility operations

• Background in high-risk or regulated environments such as nuclear, energy, or process industry

• Understanding of quality and operational frameworks (e.g. ISO 9001, NQA-1 or similar)

• Familiarity with work environment regulations (e.g. AFS) and HSE responsibilities

• Experience with risk assessment methodologies such as HAZOP, FMEA, or work environment risk assessments

• Experience coordinating complex onsite activities across multiple stakeholders

• Understanding of system integration into operational environments

• Experience ensuring maintenance, calibration, and traceability in testing environments

• Ability to make decisions in dynamic situations and balance safety, control, and execution

• Strong communication skills and ability to collaborate across disciplines

• Fluency in English; Swedish is an advantage

Location

The position is based in Oskarshamn, with travel to Stockholm and partners expected.

Locations

Oskarshamn