About the Company
We are building the #1 AI learning companion for 1 billion students globally. Our mission is to create a future where every student can access, enjoy, and benefit from the highest quality education. Since founding Knowunity straight out of high school in 2020, we've been committed to revolutionizing how students learn.
Millions of students already use our AI learning companion weekly. The AI learning market is at an inflection point, enabling true personalization at scale. We are determined to build the first AI learning unicorn in this space.
Join an elite team of 60 hands-on builders serving 1 billion students worldwide. If we execute on our product vision, you will have built something generational that transforms education globally.
About the Role
Job Title: Product Engineer
Location: Berlin
Employment Type: Full-time
Department: Product Engineering
Your Mission
- Turn complex user needs into simple, elegant product experiences that help millions of students learn more effectively.
Your Ownership
- Build and own end-to-end product features used daily by millions of students.
- Partner closely with product, design, and data teams to shape what we build.
- Focus on outcomes over implementation, using the best tools (including AI) to deliver real user and business value.
What Success Looks Like
- Ship fast, learn quickly, and see your work used by millions of students.
- Contribute to product direction and engineering quality.
- Become a key voice in the product-engineering loop.
Your Story
Your Mindset
- Build with urgency and care.
- Think product-first.
- Own outcomes, not just tasks.
- Love simplicity.
- Leverage AI as a force multiplier.
- Value excellence over comfort.
Your Track Record
- Experience building real products in a fast-moving environment.
- Hands-on experience with frontend/mobile frameworks (Flutter, React, Vue.js) or backend technologies (Go, TypeScript, Python).
- Deep care for users and a love for clean interfaces.
Must-Haves
- Experience with software engineering in a startup or fast-paced environment.
- Proficiency with at least one modern frontend/mobile framework or backend language.
- Strong interest in consumer products and solving real user problems.
- Fluent in English; German is a plus.
- Ready to work from our Berlin office 5 days/week (with some flexibility).
What We Offer
- Competitive Compensation and Equity: Includes a competitive salary and meaningful equity in a company with genuine unicorn potential.
- Elite Team and True Ownership: Work alongside 60 exceptional people with direct access to founders and leadership.
- Meaningful Impact at Scale: Your work will have immediate, measurable impact on education globally.
- Benefits: 28 days annual leave +1 extra day per year with Knowunity, 40 days work from anywhere, personal development budget, mental health support via Nilo, Urban Sports Club, monthly retail vouchers, team and company events.
We are building something exceptional. Join a lean team of ambitious people who push hard, move fast, and constantly raise the bar. If you’re hungry, thrive under pressure, and ready to go the extra mile, this is where you will accelerate your career faster than anywhere else.
Our Tech Stack
- Our app is written in Flutter with Riverpod.
- Our Golang backend is powered by PostgreSQL and hosted on AWS with Kubernetes.
- Our AI stack consists of several LLM providers (OpenAI, Gemini, Anthropic, and Mistral), custom routing engines, and fine-tuned models.
- Our data stack consists of BigQuery and dbt.
