Sensor Systems & Validation Engineer

What you will do** - Design and execute a systematic test and validation program for the Safety Bolt sensor, from individual component characterization to full system behavior under real-world installation conditions - Define the sensor operating envelope: boundary conditions, measurement uncertainty, and statistical confidence requirements - Develop test fixtures, measurement protocols, and custom test setups for ESR and inductance characterization - Work with unknown-variable scenarios: what can we predict with a known bolt type but unknown environmental context? Design the experiments that answer this - Define production test procedures and give input to calibration routines, so that quality and consistency can be ensured at scale - Collaborate with FW and ME to translate test results into requirements and guidelines - Gradually take increasing ownership of the analog front-end design as the role and team mature ### **Must have** - Solid foundation in analog electronics and measurement systems - Ability to design, execute, and evaluate systematic test programs: from experiment design through statistical analysis - Hands-on with measurement instrumentation: signal generators, impedance analyzers, oscilloscopes, lock-in amplifiers, or similar - Comfort with open-ended experimental work where the methodology itself needs to be invented - Cross-disciplinary thinking: prepared to work across electronics, signal processing, and algorithms as the problem requires - High ownership: you define the test agenda, not just execute someone else's plan ### **Nice to have** - Experience with analog front-end design, resonance circuits, or impedance spectroscopy - Background in sensor characterization, measurement physics, or instrumentation engineering - Experience with statistical experimental design (DOE) or measurement uncertainty analysis - Knowledge of signal processing: DFT, FFT, frequency-domain analysis - Experience developing custom test fixtures or measurement setups - Background in industrial sensing, precision electronics, or research instrumentation ## **Education** MSc in Electrical Engineering, Engineering Physics, Measurement Technology, or equivalent. A BSc with strong analog and instrumentation background will be considered. A research background (PhD or industry research) is equally relevant; the role values scientific rigor over formal title. ### **Experience level** 3-6 years in a role involving measurement systems, sensor characterization, analog electronics, or experimental engineering. A conventional test engineer background is not required; we are equally interested in candidates from instrumentation, applied research, or precision measurement. Avdelning Development Locations Stockholm Safety Bolt develops wireless retrofit sensors that monitor bolted joints in critical infrastructure. Using magnetostrictive sensing, each sensor converts mechanical stress in a standard steel bolt into a measurable signal, giving asset owners continuous data on clamping force without modifying the joint or replacing any hardware. Measurements are transmitted wirelessly to a cloud platform, where trend analysis and alerts identify developing risk long before a scheduled inspection would. The company focuses on wind energy, bridges and civil infrastructure, rail, tunnels and mining, and heavy process industry. The technology is patented in the US, Europe and Asia and has been independently validated by several large industrial partners. Safety Bolt was selected as one of the top 33 tech companies in Sweden 2025, and for the NATO DIANA program 2025/26. Safety Bolt AB was founded in 2023 and is headquartered in Stockholm, Sweden. Apply for this job Let’s recruit together and find your next colleague. @safety-bolt.com Log in Close modal Close modal