Junior Finance & Operations Specialist (m/f/d) - part-time

Mastodon is the world’s largest decentralised social media network, putting people back in control of their data and their reach . We are focused on creating a user‑friendly, open‑source, privacy‑conscious alternative to traditional social platforms because we believe that the digital public square must not be controlled by a wealthy few.

This approach brings exciting challenges, as Mastodon runs on thousands of independent, interconnected servers, as well as interoperating with the broader “fediverse” of services running on the same shared protocol ActivityPub.

Your responsibilities

• Support preparatory accounting (document collection, categorisation, coordination with external accountants)
• Prepare and track payments, invoices, and cash movements
• Maintain structured financial records and audit‑ready documentation
• Support monthly close and internal reporting
• Assist sales operations by issuing invoices and tracking receivables
• Research and summarise relevant policy and regulatory developments
• Document and improve finance & operations workflows

Your profile

• Fluent in English and German (both required)
• Currently enrolled in or completed studies (Bachelor’s or Master’s), ideally in Business Administration, Finance, or a related field
• Demonstrated interest in finance, accounting, and operations through coursework, internship, or projects
• Prior exposure to DATEV, an ERP, or other accounting systems is a plus
• Structured, reliable, and detail‑oriented working style
• Comfortable working with numbers and handling confidential data
• Experienced with spreadsheet editors
• Availability of approximately 10–20 hours per week (optional full‑time internships possible during semester breaks)
• Curiosity for the intersection of technology, society, and media

What we offer

• Gain hands‑on experience in finance and operations in a mission‑driven and international organisation
• Exposure to real‑world accounting and payment processes of a technology non‑profit
• Flexible working hours compatible with your studies
• Remote‑friendly setup
• Austria: "IT‑Kollektivvertrag" (Allgemeine Tätigkeit); in Germany: "Minijob" or "Midijob" possible

About Mastodon

Founded in 2016 and incorporated as a non‑profit in Germany in 2021, Mastodon GmbH is a remote‑only, primarily English‑speaking team distributed across the world. Our funding comes from crowdfunding platforms like Patreon, public grants and individual donors. Our product line includes the Mastodon software that people can install on their infrastructure, an official iOS app, and an Android app. As of April 2024, Mastodon established a 501(c)(3) non‑profit entity in the United States, enabling us to grow our operational capacity.

Diversity, Equity and Inclusion Statement

Building a diverse, inclusive, and equitable social web starts with how we build our own team. This is why we are striving to make our recruitment processes as inclusive and equitable as possible. We also acknowledge that achieving inclusivity and equity is challenging, and we won’t always get this right. Everyone experiences different levels of difficulty, and the playing field is not level. We recognise that discrimination over time and intersectionality can also reduce opportunities. We recognise that we may not be fully aware of all individual needs, and we may not be doing enough to address specific circumstances. If you have any concerns, you can reach out to us directly at