Instrument Development Engineer (m/f/d)About usLS Instruments AG, a spin-off from the University of Freiburg, is a technological leader in the field of optical characterization of nanoparticles. In July 2026, LS Instruments became part of Postnova Analytics GmbH, marking the beginning of a new chapter for our company. We recently received a contract to develop a modular light-scattering instrument for the aerospace industry.In this context, we are enlarging our team and are looking for reinforcement. We are looking for a dynamic person to join us as an Instrument Development Engineer to take responsibility for the mechanical, thermal, and electronics engineering of our scientific instruments, starting with the space instrumentation project and continuing with our commercial product line.Instrument Development Engineer (m/f/d)(LS Instruments AG) Fribourg | Full-time | Permanent employeeYour missionMechanical and optomechanical design of scientific instruments: optical bench layouts, kinematic mounts, sample positioning mechanisms, structural enclosuresThermal analysis and design of temperature control systems, including thermoelectric (Peltier) regulation for sample environments requiring sub degree stabilityElectronics architecture definition: power distribution, signal routing, connector and cabling layouts for instruments combining lasers, detectors, and embedded computingResource budgets (mass, power, thermal dissipation) and technical content for system-level documentation and specificationsPrototyping, testing, and design iteration of hardware in close collaboration with the optics and software teamsYour profileGraduate degree (Master’s or PhD) in mechanical engineering, mechatronics, physics, optics or a closely related disciplineWorking independently in a small, cross-disciplinary teamSelf-motivated and proactive in concluding assigned tasks according to company goalsProficiency in 3D parametric CAD (SolidWorks) for precision mechanical assemblies and mechanism designThermal analysis of instrument-scale systems: steady-state and transient modelling, TEC/Peltier temperature control designPrior experience in scientific instrumentation, laboratory equipment, or analytical device developmentUnderstanding of how optical, mechanical, and electronic sub-systems integrate into a functioning instrumentGood written and spoken EnglishSwiss/EU citizenship or valid working permit for SwitzerlandExperience in one or several of the following areas is advantageous:Electronics design (power distribution, PCB layout, low-noise signal conditioning)FEM simulation (structural or thermal)Optics, photonics, or laser-based measurement systemsSpace engineering standards (ECSS) or aerospace qualification processesHands-on prototyping (3D printing, CNC, soldering, laboratory assembly)Good command of French and/or GermanWhy us?Permanent, full-time positionYou become part of a growing company where your contribution makes a difference, is valued, and is part of our path to further successMatrix organization, flexible working conditions in a modern environmentA company with values dedicated to uncompromising integrity, trust, respect, and teamworkFlexible working hoursInternational, research-driven team in a cutting-edge technology environmentIdeal public transport connections – train station right next door for a seamless commuteVibrant, diverse culinary scene – modern, hipster-friendly cafés, restaurants, and food spots in the immediate neighbourhoodStartup ecosystem – located in the heart of a dynamic startup incubator community, fostering innovation and networking opportunitiesConvenient parking facilities nearbyLS Instruments AGPassage du Cardinal 11700 Fribourg
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