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Finance Intern - (AI x Greentech) (m/f/d)

Posted Oct 01, 2026

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Reonic

Berlin

EnglishPraktikumInternshipNo German needed

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Salary (estimate)

Full-time reference: €37,000–€58,000/year

About this job

Are you eager to get hands-on with the finances of one of Europe's fastest-growing renewable energy startups?

Do you thrive in dynamic environments where you can drive impact, learn fast, and actually get things done? If you're passionate about finance, operations, and making things run better – this role is for you!

Your Role at Reonic:

As our Finance Intern, you will be working closely with our Finance team on the tasks that keep our business running — from invoice management and expense tracking to data reconciliation and month-end support.

What You'll Do:

Get hands-on with pre-bookkeeping and support month-end closing processes
Support KPI reporting and financial tracking to help shape how we plan and grow
Support invoice management and collections to keep cash flowing
Take ownership of data cleaning and provide cross-departmental support
Be hands-on with financial systems, this role can be as technical as you make it

What Makes You a Great Fit:

Currently studying Finance, Accounting, Business, or something similar

DATEV experience is a plus - but not required

You have a can-do, roll-up-your-sleeves attitude

You take ownership, think proactively, and aren't afraid to ask questions

Tech-savvy and curious – you actively use AI tools and can give examples of what you've automated or improved

Structured, proactive, and comfortable in fast-paced environments

Ideally start as soon as possible

Be part of one of the fastest-growing VC-backed startups in Germany with 3,000+ satisfied B2B customers.
A 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.
Enjoy opportunities for personal and professional growth.
Embrace the freedom to innovate and make quick changes in a dynamic team.
Perks include gym membership, coffee, regular team events, MacBook and more.
Receive competitive pay.

Even 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.

At Reonic, we're on a mission to simplify renewable technology with our AI operating system for solar installers. Backed by top-tier investors and trusted by 3,000+ business customers, we're growing fast - and we need YOU to help us keep up.

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Job facts

Employer: Reonic
Role: Finance Intern - (AI x Greentech) (m/f/d)
City: Berlin
Work mode: not stated
Language: English
Seniority: Praktikum
Posted: Oct 01, 2026
Source: Ashby

Company rating

Glassdoor 3.9
9 reviews
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Kununu 4.3
25 reviews
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Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation

Broad estimate: €44,000–€75,000/year