Brand & Content Marketing Intern — Green Tech

Thermeleon; Rotterdam; On-site; EUR 4,000 - 4,700; Part time

Benefits offered by this job

Internship allowance €400/month

Job summary

Thermeleon is seeking a Marketing & Branding Intern to shape our brand identity and tell the story of our innovative sustainable Heat Battery. You will create content, manage LinkedIn, and collaborate with a multidisciplinary team to translate complex tech into clear, engaging narratives.

You will gain hands-on experience in branding, content creation, social media, and marketing strategy while contributing to real-world projects at a startup office in Rotterdam.

Qualifications

• Currently pursuing a degree in Marketing, Communication, or related field.
• Strong interest in branding, content creation, and digital marketing.
• Proficient with design/content tools; Canva or Adobe a plus.
• Excellent English communication; Dutch is a plus.
• Creative, proactive, and capable of owning projects end-to-end.
• Comfortable in a dynamic startup environment with evolving priorities.

Responsibilities

• Branding & Brand Identity: contribute to new branding across channels.
• Marketing Materials: design brochures, presentations, and visual assets.
• Content Creation: generate content for LinkedIn, newsletters, and website.
• Photography & Videography: organize and produce visuals including drone footage.
• Social Media Management: manage content calendar and LinkedIn presence.
• Website & Communication: improve messaging and site content.
• Marketing Strategy: identify ways to raise brand awareness and impact.

Skills

Branding

Content creation

LinkedIn

English proficiency

Proactive mindset

Education

Marketing/Communications degree (in progress)

Tools

Canva

Adobe Creative Suite

Figma

Job description

Thermeleon is seeking a Marketing & Branding Intern to shape our brand identity and tell the story of our innovative sustainable Heat Battery. You will create content, manage LinkedIn, and collaborate with a multidisciplinary team to translate complex tech into clear, engaging narratives.

You will gain hands-on experience in branding, content creation, social media, and marketing strategy while contributing to real-world projects at a startup office in Rotterdam.