Sales Development Representative; Pre-sales - Internship

Sales Development Representative (Pre‑sales) – Internship (EU citizen only)

Are you ready to revolutionize the clean energy space while building a meaningful career?

Join Smart Helio
, a Y Combinator‑backed deeptech startup headquartered in Lausanne, Switzerland, and help reshape solar energy performance using cutting‑edge AI and advanced diagnostics.

Smart Helio is on a mission to make solar energy truly sustainable by reducing energy losses and improving asset reliability. We've been recognized globally, including as a “Best for the World” company by B Corporation. Learn more at

This 6‑month internship, potentially leading to full‑time, focuses on pre‑sales activities: identifying and engaging potential clients across Europe and Africa, setting up demo calls, and building relationships with prospects.

Ideal for fresh graduates or early‑career professionals (max 3 years experience) enthusiastic about clean energy and sales. No technical expertise required; solar or energy exposure is a plus.

• Develop a strong understanding of Smart Helio’s AI‑driven products and their value propositions for clients in the solar energy industry.
• Proactively identify and engage with potential customers across Europe and Africa.
• Set up calls and meetings between prospects and our Account Executives (AEs).
• Manage a pipeline of prospects, tracking activity and ensuring timely follow‑up.
• Establish strong, long‑term relationships with both technical and business stakeholders.
• Keep accurate records of leads, opportunities, and interactions in Hub Spot CRM.
• Occasional support to marketing team members for various activities.

• Experience: 1‑3 years of B2B experience in sales, customer‑facing roles, or client outreach.
• Industry Knowledge: PV experience a plus; passion for clean energy and willingness to learn is key.
• Languages: Fluent in English, with additional proficiency in Spanish or German.
• Skills:
  • Strong communication skills—able to engage with both technical and non‑technical stakeholders.
  • An entrepreneurial mindset—comfortable working in a startup environment and eager to take initiative.
  • A natural problem solver with the ability to understand client needs and align them with Smart Helio’s solutions.
  • Proactive, with the ability to manage multiple tasks and prioritise effectively.
• Travel: Willingness to travel across Europe and potentially abroad for client meetings or conferences.

Salary: CHF 1 500 /month + performance‑based bonuses.

Equity: Possibility for ESOPs (when hired full‑time).

Career Growth: High growth opportunity with a chance to evolve into a full‑time position and leadership roles as the company expands.

Mission‑Driven: Work in a fast‑paced startup solving real‑world climate challenges with cutting‑edge technology.

Work Environment: Be part of a global team across Switzerland, India, and the US.

Exposure: Hands‑on experience with AI and solar technology, working with an innovative team.

Send your CV and a short cover letter to  and  (CC: ).