Mechanical Engineer
- Compensation
- Not disclosed
- Location
- Stockholm, Stockholm, Sweden
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Industrial engineering
- Posted
Skills
Must have
- Solid knowledge of bolted joint mechanics: preload theory, friction coefficients, relaxation, and failure modes
- Materials engineering foundation: understanding of steel alloys under stress, fatigue loading, surface treatment, and corrosion
- Comfortable working across a broad and shifting scope, from detailed design work to technical discussions with external test institutes and partners
- Hands-on and experimental mindset: willing to build, test, adjust, and iterate on physical hardware
- CAD proficiency for design of mechanical components and fixtures (SolidWorks, CATIA, Creo, or equivalent)
- High ownership and independent drive: you define your own work agenda and take problems to conclusion
Nice to have
- Experience designing mechanical test fixtures or custom structural test setups
- Background in industries where bolted joint integrity is safety-critical: wind energy, heavy infrastructure, mining, marine, or process industry
- Experience working with external test institutes or structural certification bodies
- Familiarity with fatigue analysis or FEM for structural components
- Interest in or exposure to sensor technology and measurement systems
- Experience in a startup or small-company environment with a broad and evolving scope
Full description
Safety Bolt
We're Safety Bolt and given our recent €2.6M fundraise and €13M LOI, we're seeking highly driven, top 1% talent to join our team and scale our monitoring solution to a multi billion euro infrastructure market.
If you're simply looking for a job, this is not for you. We seek highly motivated people who proactively and obsessively strive to solve novel problems all the way to product launch and beyond, fundamentally changing the way we build, maintain and monitor physical structures.
What we do
We build retrofittable sensors that measure the clamping force inside a bolted joint. Using magnetostrictive sensing, each sensor reads the stress in a standard steel bolt without touching it and without modifying the joint, then reports over LoRaWAN to a cloud platform where trend analysis reveals developing risk long before an inspection would. It clips on in under a minute and delivers structural integrity data for up to twenty years.
Bolted joints hold up critical infrastructure everywhere: wind energy, bridges and civil infrastructure, rail, tunnels and mining, and heavy process industry. A single wind turbine alone holds over a thousand bolts whose tension is checked by hand, if at all, and loss of preload is one of the main drivers of structural failure. The same sensor addresses all of them.
Why now
With ex-McKinsey leadership, we have developed and patented industry-leading technology over the last 7 years and recently reached a technical breakthrough, enabling an oversubscribed seed round with top-tier investors (to be announced), selection as one of Sweden's top 33 startups, a place in NATO's DIANA program chosen out of 3400 startups, and a Letter of Intent to purchase 47 000 sensors.
Vision: Become the leading structural integrity data provider globally
Target: Volume production and distribution of retrofitted sensors, providing 20 years of structural integrity data
Culture: Truth seeking, high agency, pragmatic, entrepreneurial and hypothesis driven
Seeking: Exceptional drive, intelligence and integrity. Lead rather than follow.
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The Role
You will be Safety Bolt's internal expert on bolted joint mechanics, material behavior, and structural integrity, and much more besides. In a company of this size, your role will be broad by design: you will contribute to sensor fastening concept development, own the mechanical design of test equipment, and act as a technical sounding board across the team. The foundation of the role is deep knowledge of how bolted connections work, how they fail, and what governs their behavior over time. On top of that, you will need to be comfortable rolling up your sleeves and doing hands-on mechanical work, CAD, and creative problem-solving, often in areas that cross into electronics and measurement.