Software Engineer Intern - (AI x Greentech) (m/f/d)

Most internships ask you to watch, learn, and maybe fix a few bugs.

This one asks you to help build the interface of an entire industry.

At Reonic, we’re building the AI operating system for renewable installers, with a strong culture based on ambition, impact, and ownership.

And we’re doing it fast.

What makes this internship different

• Your work directly impacts how renewable energy gets deployed

• You’ll own features end-to-end, not just tickets

• You’ll feel the speed: idea → code → live → feedback

• No endless planning cycles. No hiding behind process. No side projects nobody uses.

Just building, shipping, improving, with real responsibility from week one.

Please note: This is a fully onsite internship in Augsburg for 4-6 months.

You will:

• Build high-impact features used daily by real businesses

• Ship fast using TypeScript throughout the whole stack

• Dive into Node.js backends and handle data with PostgreSQL and Prisma

• Turn complex workflows into clean, intuitive interfaces with React and Tailwind

• Work closely with product and design, with no layers and no handoffs

• See your code in production within days, not months

And if you want more:

Work with Rust to extend our simulation that predicts the future of our customers’ projects.

This is not a narrow internship. It’s a playground for builders.

You’ll thrive here if you…

• Love turning complexity into simplicity

• Care about UX as much as clean code

• Prefer ownership over instructions

• Move fast, learn fast, and fix things instead of debating them

• Actually want to build, not just talk about building

• Have already built things, whether through side projects, hackathons, open source, working student jobs, or previous internships. Experience with TypeScript and React is a plus.

• Are currently enrolled at a university and available full-time for 4-6 months.

If you need perfect specs and slow timelines, this isn’t it.

If you want to learn fast and ship real product, you’ll love it.

Why join now

• A competitive internship salary

• High ownership from day one: you’ll work on real features, not a sandbox

• Learn from a strong engineering team that gives you direct feedback

• Gym membership or transportation ticket: pick between Urban Sports Club or D-Ticket

• Uber Eats and Uber rides on us when you finish late

• We’re still early. Be at the forefront of the energy transition.

About Reonic

At Reonic, we’re building the AI-native operating system for renewable installers.

We’re replacing fragmented tools (CRM, design, proposals, project management, invoicing) with a single integrated platform that supports installers across the full project lifecycle. Today, more than 3,000 companies across 13 countries use Reonic, and it’s just the beginning.

We’re a well-funded, VC-backed startup reshaping how the world uses energy, with top-tier people, great investors, and massive goals ahead. We work hard and move fast to build a company that lasts and that brings lasting change.

Location & duration

This is a full-time, on-site internship based in Augsburg for 4-6 months.

Ready to shape the future of renewable energy? Apply now!