Rotating Machine Lead Engineer

Blykalla is a Swedish deep-tech company at the forefront of the nuclear industry, pioneering the development of small modular

reactors that provide clean, safe, and reliable energy. Thanks to lead-cooling, we achieve high safety in a very compact format,

allowing for a simple and cost-effective design that can be mass-produced. Our unique reactor design will provide safe and green

baseload energy that perfectly complements solar and wind power.

As a Rotating Machine Lead Engineer, you will own the rotating equipment portfolio of the SEALER plant — from the Primary Coolant

Pumps (PCPs) submerged in molten lead above 400 °C, where conventional bearing and sealing solutions don't apply, to the

secondary-side feedwater and condensate pumps and the full set of auxiliary and safety-related pumps the plant requires. It is a

technically demanding portfolio that spans genuinely novel engineering on the primary side and rigorous nuclear-grade discipline

throughout:

• Define functional and design requirements for the full rotating equipment portfolio — PCPs in molten lead, secondary-side

feedwater and condensate pumps, and all auxiliary, safety-related, and service pumps.

• Develop design basis documentation and lead trade-off studies on pump configuration, drive arrangement, sealing strategy, and

bearing technology.

• Set priorities across the portfolio — distinguishing where Blykalla-specific engineering is warranted from where standard

industrial solutions suffice.

• Act as Blykalla's technical counterpart to pump suppliers and engineering partners, challenging design choices and steering

solutions to fit plant requirements across hydraulics, sealing, materials, and maintainability.

• Define the scope of hydraulic, rotordynamic, and structural analyses; brief specialists; and critically review their outputs.

Use hand calculations to sanity-check results.

• Own supplier work packages: evaluate proposals, lead design reviews, and keep pump development aligned with plant requirements

and schedule.

The Rotating Machine Lead Engineer sits in the Fluid Systems Engineering Team within Blykalla, and reports to the Manager of

Fluids Engineering. We are a diverse team that is passionate about our work and Blykalla.

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:

• A meaningful portion of your experience at a pump manufacturer or rotating equipment OEM, ideally in a role combining hydraulic

and mechanical design with workshop and field interface, or equivalent experience as a discipline lead on the operator or EPC

side.

• Strong working knowledge of centrifugal and/or axial pump design, including rotordynamics, bearing selection, mechanical seals

or seal-less concepts, and applicable design codes and standards such as API 610, API 682, ASME III, PED, or RCC-M.

• Hydraulic and mechanical fundamentals sufficient to steer and critically review calculations performed by specialists,

including the ability to perform hand calculations on head, NPSH, power, and basic rotordynamics to sanity-check results.

• Comfort writing clear technical specifications, reviewing supplier deliverables critically, and managing a multi-vendor

technical dialogue from concept through qualification.

• Experience with rotordynamic, CFD, or FEA analyses; the priority is the ability to define, commission, and review such analyses

rather than execute them.

Take the chance to be at the forefront of revolutionizing nuclear power. Join our team as Rotating Machine Lead 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!