Hardware Engineering Intern: Battery & MCU Focus

WSA – Wonderful Sound for All; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

WSA – Wonderful Sound for All in Singapore is looking for a dedicated professional to support hardware development for electronic accessory products. You will design, test, and validate products, collaborating closely with firmware engineers to ensure effective hardware‑firmware integration.

The role involves hands-on tasks such as MCU programming and managing battery systems. Joining us means becoming part of a global team that values diversity and strives to improve the lives of people by providing innovative hearing health solutions.

Qualifications

• Experience in hardware development and electronic product design.
• Familiarity with charging technology and low‑power management systems.
• Ability to conduct product benchmarking and teardowns.

Responsibilities

• Support the hardware development team in various tasks.
• Conduct product teardowns to analyze designs.
• Collaborate on hardware‑firmware integration.

Skills

Electronic accessory products design

Charging technology

Battery systems

Low‑power management

MCU programming

PCBA rework

Soldering

Job description

Driven by the passion to improve the quality of people’s lives, WSA continues to grow as the market leader in the hearing aid industry. With our commitment to increase penetration in an underserved hearing care market, we want to accelerate our business transformation to reach more people, more effectively.

As a Hardware Engineer (Accessories) Intern, you will support the development and validation of electronic hardware for accessory products such as chargers, transmitters, and remote controls. You will contribute to designing, testing, and improving charging technologies, battery systems, and low-power management solutions, while also supporting firmware integration and product verification activities. This role offers hands-on exposure to hardware design, product benchmarking, and medical-grade engineering development in a collaborative environment.

What you will do

• Support the hardware development team in designing, testing, and validating electronic accessory products
• Develop and apply solutions in charging technology, battery systems, and low-power management architectures
• Perform product teardowns and benchmarking to analyze competitor and existing designs
• Assist in verification activities and documentation-related tasks for hardware development
• Work closely with firmware engineers to understand and validate hardware–firmware integration
• Conduct hands-on work including MCU programming, PCBA rework, and soldering
• Support documentation and compliance processes for medical-grade product requirements.
  
  

What you bring

• Support order and stock commitments, including preparing recovery plans for distribution centers (DCs) and source sites
• Assist in stock replenishment planning and execution across DCs, source sites, and regional markets
• Monitor and follow up on material shortages, and support allocation planning to optimize supply
• Support the execution of supply plans, including ramp-up and phase-out activities
• Analyze planning data and processes to support operational efficiency and decision-making.
  
  

Who we are

At WSA, we provide innovative hearing aids and hearing health services.

Together with our 12,000 colleagues in 130 countries, we invite you to help unlock human potential by bringing back hearing for millions of people around the world.

With us, you will become part of a truly global company where we care for one another, welcome diversity and celebrate our successes.

Sounds wonderful? We can't wait to hear from you.

WSA is an equal-opportunity employer and committed to creating an inclusive employee experience for all. Regardless of race, color, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, disability, military or veteran status we firmly believe that our work is at its best when everyone feels free to be their most authentic self.