Instrument Development Engineer (m/f/d)

• 21 septembre 2026
• 100%
• Indefinite duration
• German (Fluent), English (Intermediate)
• Passage du Cardinal 1, 1700 Fribourg
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About us ###

LS Instruments AG, a spin-off from the University of Fribourg, 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 secured a contract to develop a modular light scattering instrument for the aerospace industry.

In this context, we are expanding our team and looking for reinforcement. We are looking for a dynamic person to join us as an Instrument Development Engineer to take charge of the mechanical, thermal, and electronic engineering of our scientific instruments, starting with the space instrumentation project and continuing with our commercial product range.

Instrument Development Engineer (m/f/d) ##

(LS Instruments AG) Fribourg | Full time | Permanent employee ###

Your mission ###

• Mechanical and optomechanical design of scientific instruments: optical bench layouts, kinematic mounts, sample positioning mechanisms, structural housings
• Thermal analysis and design of temperature control systems, including thermoelectric regulation (Peltier) for sample environments requiring sub-degree stability
• Definition of electronic architecture: power distribution, signal routing, connector layouts, and wiring for instruments combining lasers, detectors, and embedded computing
• Resource budgets (mass, power, thermal dissipation) and technical content for documentation and system-level specifications
• Prototyping, testing, and hardware design iteration in close collaboration with the optical and software teams

Your profile

• Higher degree (Master or PhD) in mechanical engineering, mechatronics, physics, optics, or a related discipline
• Independent work in a small multidisciplinary team
• Autonomous and proactive in performing assigned tasks according to company objectives
• Proficiency in 3D parametric CAD (SolidWorks) for precision mechanical assemblies and mechanism design
• Thermal analysis of systems at the instrument scale: steady-state and transient modeling, TEC/Peltier temperature control design
• Previous experience in scientific instrumentation, laboratory equipment, or analytical device development
• Understanding of the integration of optical, mechanical, and electronic subsystems into a functional instrument
• Good command of written and spoken English
• Swiss/EU citizenship or a valid work permit for Switzerland

Experience in one or more of the following areas is an asset: ###

• Electronic design (power distribution, PCB routing, low-noise signal conditioning)
• FEM simulation (structural or thermal)
• Optics, photonics, or laser measurement systems
• Space engineering standards (ECSS) or aerospace qualification processes
• Hands-on prototyping (3D printing, CNC, soldering, laboratory assembly)
• Good command of French and/or German

Why choose us? ###

• Permanent full-time position
• You become part of a growing company where your contribution makes a difference, is valued, and is part of our path toward increased success
• Matrix organization, flexible working conditions in a modern environment
• A company with values dedicated to uncompromising integrity, trust, respect, and teamwork
• Flexible working hours
• International team, research-oriented in a cutting-edge technological environment
• Ideal public transport connections - station right next door for a seamless commute
• Vibrant and diverse culinary scene - modern cafes, restaurants, and trendy eateries in the immediate neighborhood
• Startup ecosystem - located in the heart of a dynamic community of startup incubators, fostering innovation and networking opportunities
• Convenient parking facilities nearby