R&D Battery Engineer (m/f/d)

Role

Full-time

Permanent

Mid

Engineering

Logistics

Staefa, Zürich

Hybrid

Requirements

Master's

EU/EFTA permit

Skills

Battery modelingState of Charge (SoC) estimationState of Health (SoH) estimationCharging strategiesAging mechanismsPythonElectrochemistryData AnalysisVerification engineeringCollaboration with Asian manufacturingHigh voltage battery technologyExperimental Design

Languages

English

Description

As an R&D Battery Engineer, you will drive battery innovation across our Hearing Instruments and Charging Systems, bringing next-generation energy solutions from technology scouting to product integration.

Responsibilities

Scout, evaluate, and qualify next-generation battery technologies, chemistries, packaging concepts, and manufacturing innovations
Collaborate with leading battery suppliers to assess new technologies and successfully introduce them into Sonova hearing instruments and chargers
Lead battery characterization, verification, validation, reliability and lifetime assessments throughout product development
Drive battery integration across Hearing Instruments and Charging Systems, working closely with electrical, mechanical, software, system, manufacturing, and quality engineers
Contribute to Battery Management System (BMS) concepts, including charging strategies, battery modeling, and State of Charge (SoC) and State of Health (SoH) estimation
Develop Python tools to automate testing, data analysis, and engineering workflows
Apply statistical methods and use Design of Experiments (DoE) to analyze complex engineering data, optimize battery performance, and support robust, data-driven decision-making
Stay at the forefront of battery innovation and translate emerging technologies into competitive product solutions

Requirements

Master's or PhD in Electrical Engineering, Mechanical Engineering, Materials Science, Physics, Chemistry, or a related field
Proven experience in battery technology development within medical devices, consumer electronics, wearables, automotive, or another high-tech industry
Experience working with battery suppliers and introducing new battery technologies into products
Good understanding of Battery Management Systems (BMS), battery modeling, charging strategies, and battery estimation algorithms such as State of Charge (SoC) and State of Health (SoH)
Deep understanding of battery technologies, electrochemistry, battery manufacturing processes, reliability, aging mechanisms, and verification methodologies
Strong Python programming skills for engineering automation and data analysis
Experience with JMP, statistical analysis, and Design of Experiments (DoE)
A collaborative mindset, strong analytical skills, and a passion for innovation
Practical, hands-on attitude and ability to work on-site in a laboratory setting
Independent, structured, and reliable work style
Strong communication skills and team orientation
Fluent spoken and written English

Tech stack

PythonJMP

Benefits

Real-world experience in advanced battery R&D
Exposure to industry-grade test systems and analytical tools
Opportunity to contribute to meaningful products improving people's lives
A collaborative environment with mentoring from skilled engineers
Flexible hybrid working model
Wide range of training opportunities for both professional and personal development
Exceptional growth opportunities with individual development plans

Company

Sonova AG

Medical Devices

At Sonova, we believe breakthrough products start with breakthrough technologies.

Contact

Talent Acquisition Partner