AI Engineer

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.

Youve worked hands-on with large language models, tuning prompts, integrating APIs, building prototypes, and pushing performance. Youve shipped code in real-world products and know how to balance speed with quality. Youve helped turn messy ideas into useful features that delight users and scale with smart engineering.

Must-haves

• Experience working with LLMs and strong prompt engineering instincts
• Proficiency in at least one backend language (e.g. Go, TypeScript, Python)
• Fluent English; German is a plus
• Ready to work from our Berlin office 5 days/week (with some flexibility!), Were not here to coast - we are building something exceptional. Were a lean team of ambitious people who push hard, move fast, and constantly raise the bar. The real perk is not standard benefits - its joining 60 amazing people who challenge you to level up daily. If youre hungry, thrive under pressure and ready to go the extra mile, this is where you will accelerate your career faster than anywhere else.

• Thinks in prompts and systems - you know how to speak the language of LLMs and can make them do what others cant
• Builds to ship - you love moving fast, testing ideas in code, and iterating quickly based on real feedback
• Serves the user, not the process - you focus relentlessly on impact, not bureaucracy
• Thrives in ambiguity - when priorities shift, you dont stallyou adapt and move
• Leverages AI - as a force multiplier in everything you do
• Values excellence over comfort - mediocrity isnt in your vocabulary, * Competitive compensation and equity: Were are building Knowunity to dominate the global AI learning market. Your compensation package includes competitive salary paired with meaningful equity in a company with genuine unicorn potential. Team members who help us reach that goal will be rewarded accordingly.
• Elite team and true ownership: Youll work alongside 60 exceptional people who match your ambition within a flat hierarchy - direct access to founders and leadership without bureaucratic middle layers. You'll own entire areas from conception to delivery with real decision-making authority.
• Meaningful impact at scale: Your work will have immediate, measurable impact on education globally and directly improves how millions of students learn.
• 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 become1 retail vouchers, team and company events

At Knowunity we work passionately every day to fulfill our mission in providing each and every student access to high-quality school education and in building the global platform for millions of students. Our digital learning platform combines social learning with verified, curated, and high-quality content on every school subject.

Founded in 2019 and headquartered in Berlin, Knowunity is the fastest-growing EdTech startup in Europe. With 2M€ raised from leading investors such as Project A, Verena Pausder, Saarbrücken 21, and more than 1.6 million active users on the platform, we are aiming to expand into all relevant international markets in 2022 and 2023.