Lead Battery & Electronics Engineer – Wearables

Velia; Neuenburg; On-site; CHF 120,000 - 170,000; Full time

Job summary

Senbiosys (Velia) in Neuchâtel is seeking an experienced Battery & Electronics Engineer to define, develop, validate, and optimise lithium-ion battery systems for consumer electronics and wearables. You will lead battery-related decisions, work with suppliers, and partner with hardware and firmware teams to maximize battery life and safety.

The role includes ownership of battery architecture, validation programs, and integration with power management, with a focus on mass production readiness

Qualifications

• Bachelor’s or Master’s degree in Electronic Engineering, Electrical Engineering, Physics, Materials Science, or a related discipline.
• 5+ years of experience developing lithium-ion battery powered consumer electronics products.
• Experience delivering products from concept through mass production.
• Experience specifying and qualifying rechargeable lithium-ion batteries for consumer electronics, wearables, or portable devices.
• Strong understanding of battery degradation mechanisms, cycle life, and reliability engineering.
• Experience working directly with battery manufacturers and suppliers.
• Hands-on experience with battery characterisation, test methods, and data analysis.
• Experience defining battery qualification and validation plans.
• Strong understanding of power electronics and embedded hardware design.

Responsibilities

• Own battery technology selection and specification for new consumer electronics and wearables.
• Define battery performance requirements including capacity, energy density, cycle life, charging performance, operating temperature, and safety.
• Develop battery qualification plans and acceptance criteria.
• Own battery-related technical decisions throughout the product development lifecycle.
• Design and execute battery characterisation and validation programmes.
• Analyse battery performance under real-world use cases and environmental conditions.
• Drive root cause investigations for battery-related issues during development, manufacturing, and field operation.
• Define and manage reliability, lifetime, and degradation testing.
• Establish battery performance metrics and monitoring strategies.
• Specify and optimise battery management system architectures for lithium-ion powered products.
• Collaborate with hardware and firmware teams on SOC/SOH, charging algorithms, protection, and power management.
• Support development of fuel gauging and calibration methodologies.
• Support PCB design reviews and validation activities.
• Act as primary interface for battery suppliers and related components.
• Review supplier test data and manufacturing controls.
• Drive supplier technical reviews and issue resolution.
• Support sourcing activities, supplier audits, and technology evaluations.
• Work with manufacturing partners to ensure battery quality and performance.
• Support EVT, DVT, PVT, and mass production phases.
• Develop manufacturing test and screening requirements for battery systems.
• Review production data and drive improvements.
• Support regulatory compliance and certification activities for battery safety.

Skills

Lithium-ion battery technology

Battery qualification and reliability

Battery Management Systems

Failure analysis

Cross-functional collaboration

Education

Bachelor’s or Master’s degree in Electronic Engineering or related field

Tools

Fuel gauge ICs

Battery management ICs

Job description

Senbiosys (Velia) in Neuchâtel is seeking an experienced Battery & Electronics Engineer to define, develop, validate, and optimise lithium-ion battery systems for consumer electronics and wearables. You will lead battery-related decisions, work with suppliers, and partner with hardware and firmware teams to maximize battery life and safety.

The role includes ownership of battery architecture, validation programs, and integration with power management, with a focus on mass production readiness