Laboratory Technician – Electronics & Electroacoustics

Sonexos SA; Lausanne; Vor Ort; CHF 60.000 - 90.000; Vollzeit

Zusammenfassung

Sonexos SA in Lausanne, Switzerland, seeks a Laboratory Technician – Electronics & Electroacoustics to support its R&D electroacoustics lab and the Plasmapanel technology. You will configure test benches, install firmware, and maintain measurement equipment, enabling engineers to progress hardware development.

The role emphasizes practical electronics, embedded firmware commissioning, and instrument setup, with increasing independence as experience grows.

Qualifikationen

• Technical qualification in electronics or related field (Swiss or international).
• Strong practical grounding in electronics and electrical lab work.
• Able to read schematics and use instrumentation.

Aufgaben

• Operate and maintain electroacoustics and plasmacoustics lab infrastructure.
• Assemble, configure, and commission electronic test benches and hardware.
• Develop prototype electronics and firmware integration with drive systems.
• Support engineers with experiments, measurements, and data recording.
• Prepare experimental setups from briefs and execute baseline tests independently.
• Document configurations, faults, and procedures for reproducibility.
• Maintain inventories and coordinate calibration and maintenance of equipment.

Kenntnisse

electronics

embedded systems

soldering

instrumentation

prototype fabrication

Ausbildung

Swiss Federal Diploma / HF

Bachelor's degree

apprenticeship + experience

Tools

Oscilloscopes

Multimeters

Power supplies

Signal generators

Data acquisition equipment

Test benches

PCB assembly

Jobbeschreibung

We are seeking a Laboratory Technician – Electronics & Electroacoustics to support the operation of the Company’s electroacoustics laboratory and the development and application of its patented Plasmapanel technology.

The Sonexos laboratory supports fundamental and applied development activities across plasmacoustics, acoustics, electronics, embedded systems, firmware, and associated measurement and test disciplines, and is used extensively by our Applications Engineering team for customer feasibility studies, benchmarking, prototype development, and validation of equipment prior to dispatch to customers. The successful candidate will take practical responsibility for ensuring that the laboratory’s electronic and electroacoustic infrastructure is operational, appropriately configured, maintained, and available to support engineering activities.

A particular focus of the position will be the commissioning and operation of electronic hardware and embedded firmware used to drive and control Plasmapanel systems — assembling and configuring test benches, preparing and commissioning prototype electronics, installing firmware, configuring power supplies, amplifiers, interfaces and measurement equipment, diagnosing faults, and supporting engineers in bringing new development hardware into operation. While our Applications Engineers provide strong acoustics and applications expertise, the Laboratory Technician will provide complementary practical capability in electronics, embedded hardware, firmware commissioning, instrumentation, and laboratory systems, and will participate directly in Applications Engineering and R&D activities.

The scope of independent execution will grow with experience in the role. Starting under closer engineering direction, the successful candidate will progressively take independent responsibility for preparing experimental setups from engineering briefs, executing baseline and standardised measurement campaigns, and undertaking preliminary feasibility work on customer appliances — enabling our engineers and scientists to concentrate on technology development, analysis, and design decisions. Experimental objectives, methods, and the interpretation of results remain with the responsible engineers.

The position reports to the Company’s Chief Technology Officer (CTO) and is based at the Company’s R&D facility in Lausanne, Switzerland.

Responsibilities

• Support the day-to-day operation of the Company’s electroacoustics and plasmacoustics laboratory, keeping test benches, instrumentation, electronics, and supporting infrastructure functional, well organised, and ready for engineering use.
• Assemble, configure, commission, and maintain electronic test benches, including power supplies, amplifiers, signal sources, oscilloscopes, data-acquisition equipment, cabling, and interfaces.
• Undertake practical electronics work — soldering, rework, cable and wiring-harness fabrication, connectorisation, and prototype assembly and modification — to a high standard.
• Commission electronic hardware and embedded firmware used to drive and control Plasmapanel systems, including loading, configuring, and verifying firmware and performing structured functional checks.
• Prepare prototype Plasmapanel systems and development hardware, and support their integration with electronic drive systems, control hardware, acoustic test equipment, and customer appliances.
• Provide practical laboratory support to Applications Engineers on customer feasibility, benchmarking, and validation programmes, including preliminary characterisation of customer appliances on receipt, preparation and instrumentation of appliances and systems, baseline measurements in advance of detailed engineering analysis, and trial fitting of Plasmapanel prototypes.
• Translate engineering briefs into practical experimental arrangements: build, instrument, and commission experimental setups, and execute initial, baseline, and standardised measurement campaigns independently where procedures and acceptance criteria have been defined.
• Support engineers in the execution of more complex or exploratory acoustic, electroacoustic, electrical, and system-level measurements, and deliver first-pass reviewed, organised results ready for engineering analysis.
• Anticipate upcoming engineering and customer-programme requirements, and prepare test setups, fixtures, cabling, and samples ahead of demand.
• Perform systematic fault finding and diagnosis across electronics, firmware, power, communications, cabling, and instrumentation, escalating complex or design-related faults with clear supporting information.
• Prepare and maintain operating instructions, test-setup documentation, and configuration records so that laboratory setups can be reliably reproduced.
• Maintain laboratory inventories, coordinate procurement of routine components and equipment, and coordinate calibration, maintenance, and repair of measurement equipment.

Qualifications

• Technical qualification in electronics, electrical engineering, embedded systems, mechatronics, instrumentation, or a closely related discipline. A Swiss Federal Diploma, HF qualification, Bachelor’s degree, apprenticeship followed by substantial relevant technical experience, or comparable international qualification may all provide an appropriate background.
• Strong practical grounding in electronics and electrical laboratory work.
• Good understanding of analogue and digital electronic systems, power supplies, signal interfaces, and electronic instrumentation.
• Familiarity with embedded systems and firmware-controlled electronic hardware.
• Ability to read and interpret electronic schematics, wiring diagrams, component documentation, and technical specifications.
• Competence in soldering, electronic assembly, cable fabrication, connectorisation, and prototype modification.
• Familiarity with acoustic or electroacoustic systems is advantageous.

Experience

• Relevant practical experience in an electronics, embedded-systems, electroacoustics, R&D, product-development, test, or engineering laboratory environment.
• Hands‑on experience commissioning prototype or development electronic hardware, and working with embedded systems and loading, configuring, or commissioning firmware.
• Electronic fault finding and diagnosis using oscilloscopes, multimeters, power supplies, signal generators, and related equipment.
• Construction and maintenance of engineering test benches, PCB assembly and rework, and cable and wiring‑harness preparation.
• Preparing and executing structured tests, measurements, or experiments independently from defined briefs, procedures, or work instructions.
• Experience supporting engineers undertaking product-development, validation, or applications-engineering work, including preparing clear operating procedures and practical technical documentation.
• Experience in acoustics, audio, electroacoustics, active‑noise‑control systems, loudspeakers, amplifiers, measurement microphones, or acoustic instrumentation would be particularly relevant, but is not essential where the candidate has strong electronics and embedded‑systems capability.
• Prior experience of plasmacoustics or of all of our acoustic and electroacoustic test methods is not expected: Sonexos will provide structured development in these areas, and candidates should demonstrate the aptitude and motivation to progressively extend their independent scope within the role.

Personal Attributes

• Highly practical and hands‑on, with a strong instinct for making engineering systems work reliably.
• Methodical approach to commissioning, testing, fault finding, and diagnosis.
• Takes ownership of laboratory equipment and infrastructure, and drives practical issues through to resolution.
• Motivated to learn and progressively extend their independent scope, developing from structured execution towards independent preparation and execution of standardised experiments and feasibility work.
• Well organised and capable of maintaining a functional laboratory environment while supporting multiple engineering activities.
• Clear communicator who documents configurations, faults, procedures, and solutions effectively.
• Comfortable working in a small, fast‑moving deep‑technology company, and careful and safety‑conscious when working with electrical, electronic, acoustic, and prototype equipment.
• The position is based at the Company’s R&D facility in Lausanne, Switzerland.
• This is principally an on‑site laboratory position; regular physical presence at the Company’s facility is an inherent requirement of the role.
• English is the Company’s working language. French would be advantageous but is not essential.
• Candidates must be authorised to work in Switzerland at the time of employment.
• Occasional travel may be required to support customer, supplier, or other engineering activities.

Sonexos is a Swiss engineering company specializing in high‑performance audio and sound control. We develop and supply advanced solutions for audio enhancement, noise and vibration control to clients in the consumer, transportation, automotive and industrial sectors.

A core innovation is our Plasmapanel technology—an active acoustic solution that achieves broadband sound absorption in enclosed spaces such as vehicle cabins, rooms, offices, ducts, and machinery. Unlike passive treatments that rely on mass or porous materials, Plasmapanel actively absorbs the energy of incident sound waves upon contact, delivering lighter, more space‑efficient noise reduction across a wide frequency range.

Beyond our R&D capabilities, Sonexos provides strategic advisory services to help clients accelerate innovation in sound and acoustics. Our offerings include product design consultation, acoustic benchmarking, system integration support, and scalable manufacturing guidance—ensuring successful deployment of advanced technologies and long‑term differentiation in the marketplace.

By combining deep technical expertise with a pragmatic, system‑level approach, Sonexos empowers companies to elevate acoustic performance where it matters most – where sound enhances experience.