Build the Operating System of the Energy TransitionMost internships have you sitting in meetings, fixing small bugs, and watching others build.This one doesn't.At Reonic, you'll work on software used by thousands of renewable energy companies across Europe. You'll ship real features, solve real problems, and see your code in production within days.We're building the AI-native operating system for renewable installers. And we're looking for ambitious builders who want to learn fast, take ownership, and make an impact from day one.This is a full-time, on-site internship based in Berlin.What Makes This Internship DifferentYour work directly impacts how renewable energy gets deployedYou'll ship production code used by real customersYou'll work closely with experienced engineers, product managers, and foundersYou'll own projects instead of shadowing othersYou'll see the full lifecycle: idea → implementation → customer feedbackNo busy work. No "intern projects" disconnected from reality. Just building, learning, and shipping.What You'll BuildDevelop product features across our React, TypeScript, and Node.js stackTurn complex business workflows into simple and intuitive user experiencesWork on AI-powered workflows that help installers sell and deliver renewable energy projects fasterContribute to backend services, APIs, and internal toolingDebug, improve, and optimize production systemsCollaborate closely with product and design to bring ideas to lifeAnd if you're eager to go deeper:Work with databases and PostgreSQLLearn about system architecture and scalabilityExplore AI integrations and automation workflowsTake ownership of larger features end-to-endThis is not a typical internship.It's a playground for builders.You'll thrive here if you...Love building things and seeing them used by real peopleAre curious and learn quicklyPrefer ownership over detailed instructionsEnjoy solving problems, not just writing codeCare about creating great user experiencesWant to work with ambitious people who move fastAre studying Computer Science, Software Engineering, or a related fieldPrevious Startup Experience Is a Plus, But Not Required.What matters most is your ability to learn, execute, and take ownership.Why join nowCompetitive internship compensationHigh ownership from day oneSteep learning curve and rapid personal growthUber Eats and Uber rides on us when you finish lateRegular team events, great coffee, and a MacBookA vibrant, collaborative office culture where great ideas happen face-to-face — we're a full in-person team (5 days/week) in a beautiful Berlin office near Hackescher Markt. Join one of Germany's fastest-growing VC-backed startupsEven if you don’t meet every requirement, we encourage you to apply! Imposter syndrome shouldn't hold you back - we value talent and passion above all.About ReonicAt Reonic, we’re on a mission to simplify renewable technology with our AI operating system for renewable installers. Backed by top-tier investors and trusted by 3000+ business customers, we’re growing fast - and we need YOU to help us accommodate our new and existing customers.

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Software Engineering Intern (AI x Greentech) (m/f/d)