Senior Mechanical Design Engineer

Blykalla; Stockholms kommun; On-site; SEK 1,100,000 - 1,400,000; Full time

Job summary

Blykalla, a Swedish deep-tech company pioneering small modular reactors, invites a Senior Mechanical Design Engineer to lead hands-on mechanical design for SMR applications in Stockholm. You will own complex components, create 3D CAD models and drawings, and collaborate across disciplines to meet stringent safety and quality standards.

Ideal candidates have 8+ years in mechanical design, robust experience with regulated industries, and excellent communication in English.

Qualifications

• Bachelor's or Master's degree in Mechanical Engineering or related field.
• 8+ years of experience in mechanical design engineering with 3D CAD and large-scale components.
• Experience in regulated industries with structured engineering processes, safety and quality requirements.
• Fluency in spoken and written English.

Responsibilities

• Design and develop mechanical components and systems for SMR applications, from concept through detailed design.
• Produce detailed 3D CAD models, drawings, and technical documentation.
• Interpret and trace requirements throughout the design process.
• Evaluate results from mechanical, thermal, and fluid analyses and iterate designs.
• Support prototyping, testing, and design verification.
• Collaborate with R&D, safety, and manufacturing teams to ensure robust and compliant designs.
• Ensure designs meet industry standards, safety requirements, and quality processes.
• Communicate technical progress and design decisions within project teams.

Skills

3D CAD

Mechanical design engineering

Regulated industries

Problem solving

Communication

Collaboration

English fluency

Education

Bachelor's or Master\'s degree in Mechanical Engineering

Tools

FEM simulations

CFD

FMEA

Nuclear codes and standards (ASME RCC)

Job description

What we do at Blykalla

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 powe r.

Are you a skilled mechanical engineer with a passion for solving complex design challenges? Do you enjoy hands-on engineering work in a fast-paced environment where your contributions have real impact? Join Blykalla, Sweden's pioneer in next-generation nuclear energy, as a Senior Mechanical Design Engineer.

What you'll get to do

As a Senior Mechanical Design Engineer, you will work as a key technical contributor in the design, analysis, and development of mechanical systems for our SMRs. The role is strongly hands-on and focused on detailed mechanical design, engineering analysis, and close collaboration with colleagues across disciplines. You will thrive in this role if you:

• Enjoy deep technical work and hands-on mechanical design.
• Take ownership of your deliverables and see them through to completion.
• Question assumptions and continuously seek better engineering solutions.
• Are comfortable working in an agile, fast-moving environment.
• Value open, respectful communication and teamwork.

Key Responsibilities

• Design and develop mechanical components and systems for SMR applications, from concept through detailed design.
• Produce detailed 3D CAD models, drawings, and technical documentation.
• Interpret, implement, and trace requirements throughout the design process.
• Critically evaluate results from mechanical, thermal, and fluid analyses and iterate designs accordingly.
• Support prototyping, testing, and design verification activities.
• Collaborate with R&D, safety, and manufacturing teams to ensure robust and compliant designs.
• Ensure designs meet applicable industry standards, safety requirements, and quality processes.
• Communicate technical progress and design decisions within project teams.

Who'll you'll get to work with

The Senior Mechanical Design Engineer sits in the engineering team within Blykalla, and reports to the Mechanical Engineering Manager. We are a diverse team that is passionate about our work and Blykalla.

Who you are

You will be part of a highly skilled engineering team with a strong sense of ownership and curiosity. To succeed in this role, we believe you bring the following:

Required

• Bachelor's or Master's degree in Mechanical Engineering or a related field.
• 8 or more years of experience in mechanical design engineering, with a strong focus on 3D CAD and design of large-scale components.
• Broad mechanical engineering expertise spanning design and manufacturing.
• Experience working in regulated industries with structured engineering processes, safety regulations, and quality requirements.
• Strong problem-solving skills and attention to detail.
• Excellent communication and collaboration skills.
• Fluency in spoken and written English.

Considered a merit

• Experience from the nuclear industry, including familiarity with nuclear codes and standards (e.g. ASME, RCC) and nuclear quality assurance processes.
• Experience with FEM simulations and/or thermal or fluid simulations (CFD).
• Experience with risk assessment methods such as FMEA.
• Fluency in Swedish.

Location

This position is for our office in Stockholm.

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!

• We offer competitive compensation aligned with our internal salary framework and growth potential in the role.