Product Builder Intern - Growth

LIQID; Berlin; Hybrid; EUR 11,000 - 17,000; Full time

Job summary

LIQID is seeking a Product Builder Intern – Growth in Berlin. You will take growth initiatives from idea to live feature at the intersection of technology, AI, and fintech, shipping AI-native features, and optimizing conversion journeys.

You will collaborate with Product, Marketing, Design, and Engineering to drive initiatives forward, while ensuring accuracy and regulatory compliance in a fast-growing fintech environment.

Qualifications

• Currently enrolled in a bachelor's or master's program in CS, Business Informatics, Engineering, Economics, or related field.
• Builder track record: built and shipped a website, app, tool, or automation and can share a link.
• Proficient in JavaScript/TypeScript and React; comfortable with Git and AI coding tools like Cursor and Claude.
• Strong analytical mindset; design funnels, hypotheses, and measure outcomes.
• Curiosity for fintech and AI; verify AI output before shipping in a regulated product.
• Ownership of features end-to-end and ability to manage multiple priorities.
• Excellent communication; explain technical work to non-technical colleagues.
• Fluent in German and English.
• Full-time availability for minimum 3 months; willing to travel to Berlin HQ (hybrid).

Responsibilities

• Build & Ship AI-native features, conversion journeys, and landing pages on liqid.de—from concept to go-live.
• Improve LIQID's SEO & AEO through structured data, content architecture, and page performance.
• Maintain and further develop Sanity CMS and Next.js website—schemas and templates.
• Collaborate with Product, Marketing, Design, and Engineering to accelerate initiatives.

Skills

JavaScript/TypeScript

React

Analytical thinking

Communication

Ownership

English

German

Education

Bachelor's or Master's in CS / Business Informatics / Engineering / Economics

Tools

Git

Job description

Your Role
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.

Your Role
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.
We have built a state-of-the-art setup between a headless CMS (Sanity) and a Next.js website that lets product and business builders ship features fast. For you, that means rapid experimentation: form a hypothesis, build it with Cursor and Claude, put it live, and measure what it moves.
The internship will be available at the earliest possible starting date, and will take place at our Berlin office.

• Build & Ship: 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.
• SEO & AEO: Improve how LIQID is found in search engines and cited by AI assistants—through structured data, content architecture, page performance, and our knowledge hub.
• Platform & CMS: Maintain and further develop our Sanity CMS and Next.js website—schemas, components, and templates—so that product and business teams can ship on their own.
• Collaboration: Partner with Product, Marketing, Design, and Engineering teams to drive initiatives forward, and share what you learn so the whole team gets faster.
  

What You Bring

• Background: Currently enrolled in a bachelor's or master's program in Computer Science, Business Informatics, Engineering, Economics, or a related field, preferably with a focus on software, product, or design.
• Builder Track Record: You have built and shipped something real—a website, app, tool, or automation—and can show it. Share a link with your application.
• Technical Skills: You read, write, and review code with confidence—ideally JavaScript/TypeScript and React—work with Git, and use AI coding tools such as Cursor and Claude every day.
• Growth & Analytical Mindset: Strong analytical and problem-solving skills. You think in funnels, hypotheses, and measurable outcomes, and want to know why users find us and convert.
• Curiosity & Judgment: Passion for fintech, AI, and new technology. You try new tools early, know their limits, and verify AI output before it ships—in a regulated financial product, correctness comes before speed.
• Ownership & Initiative: Proactive and hands‑on. You take ownership of features end to end, bring your own ideas, and manage multiple priorities effectively.
• Communication & Teamwork: Excellent communication skills. You explain technical work clearly to non-technical colleagues and build strong relationships across Product, Marketing, Design, and Engineering teams.
• Language Skills: Fluency in German and English.
• Availability: Full-time availability for minimum 3 months and the ability to travel to the LIQID HQ in Berlin (hybrid working).