Job Description

About Customvolt

Customvolt Solutions Ltd is a London-based clean energy and consumer electronics company. We design, import, and supply:

ODM/OEM Battery Solutions

- custom battery packs for IoT, smart meters, robotics, and energy storage applications.

Solar + Storage Systems

- solar panels, hybrid inverters, and LiFePO? battery storage for homes, RVs, and marine markets.

Consumer Energy Products

- portable power banks and rechargeable batteries for everyday use.
We're a growing startup that blends engineering, creativity, and problem-solving to deliver practical clean energy solutions to customers in the UK and Europe.

The Role

We're looking for a

Business Development Assistant

to support our sales and marketing activities in the renewable energy and consumer electronics sectors. This is a great opportunity for someone eager to build a career in business development within the fast-growing battery and solar energy market.

You'll work closely with the Director and Business Development Executive to support lead generation, prepare quotations, coordinate communication with clients and suppliers, and help manage trade show operations.

You will:

Assist in identifying and qualifying leads across battery, solar, and consumer electronics markets. Support quotation, proposal, and presentation preparation for client enquiries. Help manage client communications, including emails, follow-ups, and CRM updates. Coordinate with suppliers, logistics, and production teams to track sample and order progress. Conduct basic market research on potential clients, competitors, and product trends. Support exhibition planning, trade show coordination, and marketing material preparation. Provide administrative support to the business development and operations teams.

What We're Looking For

Strong interest in renewable energy, sustainability, or consumer electronics product. Excellent written and spoken English. Cantonese is a must, Mandarin, or another European language (advantage). Degree holder preferred (Business, Marketing, or Engineering). Strong attention to detail and ability to multitask in a fast-paced environment. Good interpersonal and communication skills. Confident with Microsoft Office / Google Workspace. Prior experience in sales support, customer service, or B2B coordination is a plus, but not essential.

What We Offer

Competitive salary of 30,000 - 35,000 depending on experience. Career growth opportunities to progress into Business Development Executive roles. Hands-on exposure to solar, energy storage, and consumer electronics products. Direct mentorship from experienced professionals in clean energy and product distribution. Participation in international trade shows and product launches. Dynamic startup culture with a focus on innovation and design.

How to Apply

Please send your CV and a short cover letter (in English or Cantonese) to

henrykslum@customvolt.co.uk

with the subject line:

"Business Development Assistant Application - Customvolt (Ref: CVSI10-25)"

Job Types: Full-time, Permanent

Pay: 30,000.00-33,000.00 per year

Language:

Cantonese (required)
Work Location: In person