Sales and Marketing Internship (m/w/d) 80-100%

greenteg AG offers high-tech thermal sensing solutions for an international customer base. Besides marketing industrial sensors for laser power metering and for assessing insulation properties of buildings, we also offer a unique core body temperature measurement solution (CALERA®) for wearable devices. The technology empowers customers with a wide range of innovative applications such as improving sports performance, continuous and non-invasive patient monitoring, ovulation tracking, sleep analysis or early detection of diseases.

The company develops, manufactures, and markets all solutions at our headquarters in Rümlang, ZH.

To strengthen our Uval/Inno Business Unit Sales team, we are seeking a motivated intern with a background in sales or marketing for a 6-month assignment.

Start Date: ~January 2026.

You will receive mentoring and training to progressively take ownership of the following Sales and Marketing activities within the Uval/Inno Business Unit:

• Sales support: qualifying inbound leads, preparing demo materials, and maintaining the CRM.
• Market research: creating concise market snapshots (stakeholders, use cases, competitor analysis) for key target segments.
• Marketing: running LinkedIn and email campaigns (HubSpot), creating short posts and case-study briefs, coordinating landing page/newsletter updates, and producing simple product content (e.g., short videos, basic edits).
• Analytics & reporting: maintaining monthly KPIs (lead generation, engagement, MQL→SQL conversion, pipeline velocity).
• Process improvement: supporting content enhancement and ensuring brand consistency.

• Current student or recent graduate in Business, Marketing, or a technical field (e.g., Engineering, Physics, Building Engineering).
• Strong curiosity for thermal R&D or building physics, with the ability to translate technical concepts into clear marketing and sales messages.
• Proficient in MS Office (Excel, PowerPoint, Word, Outlook); experience with CRM tools (e.g., HubSpot) and LinkedIn outreach; a basic understanding of A/B testing is an advantage.
• Solid analytical skills and high attention to detail.
• Excellent communication and teamwork skills.
• Fluent in English (C1); German is an asset.

Additional requirements:

• A valid Swiss working permit is a must.
• Available to work on-site in Rümlang, Switzerland.

• 20 annual paid vacation days (at a 100% workload).
• A stimulating role in high-tech manufacturing, involving diverse technologies.
• Collaborative participation in enhancing company processes.
• An energetic, young, and international team.
• Flexibility and option for remote work (one home office day per full work week at a 100% workload)
• Regular social events, teambuilding, BBQ, free coffee and snacks.

Send your application (short cover letter and CV).

We will get back to you shortly to explain the next steps in the application process.