Product Builder Intern - Growth

As a Product Builder Intern – Growth (f/m/d), you'll take growth initiatives from first idea to live feature, working at the intersection of technology, AI, and business, and making a measurable impact in a fast-growing fintech. The internship will be available at the earliest possible starting date, and will take place at the Berlin office.

Responsibilities

Design, build, and launch AI-native features, conversion journeys, and landing pages on liqid.de, writing production code with Cursor and Claude from concept to go-live; Improve how LIQID is found in search engines and cited by AI assistants through structured data, content architecture, page performance, and the knowledge hub; Maintain and further develop the Sanity CMS and Next.js website (schemas, components, and templates) so product and business teams can ship on their own; Partner with Product, Marketing, Design, and Engineering teams to drive initiatives forward and share learnings

Requirements

Currently enrolled in a bachelor's or master's program in Computer Science, Business Informatics, Engineering, Economics, or a related field; Built and shipped something real (website, app, tool, or automation) and can show it; Read, write, and review code with confidence, ideally JavaScript/TypeScript and React; Work with Git; Use AI coding tools such as Cursor and Claude every day; Strong analytical and problem-solving skills; Think in funnels, hypotheses, and measurable outcomes; Passion for fintech, AI, and new technology; Verify AI output before it ships; Proactive, hands-on, and takes ownership of features end to end; Excellent communication skills; Fluency in German and English; Full-time availability for minimum 3 months; Ability to travel to the LIQID HQ in Berlin (hybrid working)

Nice to have

Hands-on experience with Next.js, Sanity or another headless CMS, and technical SEO (structured data, Core Web Vitals); Experience with LLM APIs, agents, or workflow automation; Experience with Linear, Figma, product analytics, or A/B testing tools; Prior experience in start-ups, consulting, or financial services

Benefits

Real exposure to product development with responsibility to make an impact; Mentorship from experienced Product Owners, Designers, and Engineers; Hybrid working options; 28 vacation days and two additional days off on December 24 and 31; High-quality equipment (MacBook, display, headphones); Healthy office snacks; Monthly lunch allowance; Exclusive employee benefits on investment strategies