Software Engineering Intern – AI & Greentech

About the role

At Reonic you will help build the operating system for the energy transition. You will work on software used by thousands of renewable energy companies across Europe, shipping real features and seeing your code in production within days.

Key responsibilities

• Develop product features across our React, TypeScript, and Node.js stack.
• Turn complex business workflows into simple, intuitive user experiences.
• Work on AI‑powered workflows that help installers sell and deliver renewable energy projects faster.
• Contribute to backend services, APIs, and internal tooling.
• Debug, improve, and optimise production systems.
• Collaborate closely with product, design, and engineering teams to bring ideas to life.

Required profile

• Passion for building things that are used by real people.
• Curious, quick learner who prefers ownership over detailed instructions.
• Enjoy solving problems, not just writing code.
• Care about creating great user experiences.
• Studying Computer Science, Software Engineering or a related field.
• Previous startup experience is a plus but not required.

Required skills

• React
• TypeScript
• Node.js
• PostgreSQL

What we offer

• Competitive internship compensation.
• High ownership from day one and a steep learning curve.
• Uber Eats and Uber rides for late‑night work.
• Regular team events, great coffee, and a MacBook.
• Full‑time, in‑person team environment in a Berlin office near Hackescher Markt.