Founded April 2025 · Budapest

Green Reliable Software Budapest

A Budapest-based community helping students, developers, and partners learn green software, responsible engineering, green AI, and practical sustainability skills.

Part of the Green Software Foundation Community · Supported by Data Immigrant Kft.

Join the Meetup → RSVP: Green Software 101 Get Knowledge Hub Access

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Three ways to engage

New to the community? Choose the path that fits where you are right now.

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Watch & Learn

Access past talks, recordings, speaker slides, and event recaps.

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Join the Community

Meet students, engineers, founders, researchers, and partners building around impact.

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Build With Us

Explore internships, hackathons, guided build labs, and practical project pathways.

Community proof

One year of green software community

Since April 2025, we have brought together students, early-career builders, engineers, and partners to explore sustainable, reliable, inclusive, and responsible software.

215+Meetup members

6Past events

2May student events

400+Hack4Earth participants

44Teams

15Final submissions

1Year active

Latest recap

Hobby Projects to Green Production Systems

Our latest session explored what changes when code moves from a hobby project into a real system that people depend on. The conversation covered sustainable software across technical, economic, environmental, social, and individual dimensions.

TechnicalEconomicEnvironmentalSocialIndividual

A prototype becomes serious when real people begin to depend on it.

Access Slides & Resources Read on Meetup

Event poster for The Engineer’s Professional Journey in Budapest

The idea

What is green software?

Green software is the practice of designing, building, and operating software with awareness of energy, carbon, infrastructure, hardware, cost, reliability, access, and long-term impact.

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Energy Efficiency

Build systems that use less energy to deliver useful outcomes.

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Carbon Awareness

Understand when and where software runs, and how energy sources affect impact.

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Hardware Efficiency

Use devices, servers, and infrastructure responsibly across their full lifecycle.

Student Edition · May 2026

Two practical sessions for students

Move from awareness to application. These sessions help students connect software, sustainability, and real-world impact.

22 May 2026

Green Software 101: Student Edition

Friday · 19:00 CEST · Online

A student-friendly introduction to sustainable software engineering: what it means, why software has an environmental impact, and how students can begin thinking about energy, carbon, hardware, cloud systems, cost, reliability, and long-term maintainability.

RSVP for Green Software 101

28 May 2026

Student Build Lab: From Prototype to Production

Thursday · 19:00 CEST · Online

A guided working session where students bring project ideas, hackathon concepts, class assignments, or early prototypes and improve them through maintainability, accessibility, reliability, cost-awareness, energy use, product decisions, and what changes when real people depend on a system.

RSVP for Student Build Lab

From events to action

Hack4Earth and Green AI momentum

In October 2025, Data Immigrant helped organize the Kaggle Community Olympiad — HACK4EARTH Green AI Challenge, a month-long open-source challenge exploring how AI can be created and used with greater environmental care.

This proves the community is not only talking about sustainability. It is building spaces for people to learn, submit, collaborate, and demonstrate solutions.

Explore Student Opportunities

400+participants

44teams

15final submissions

1 monthopen-source challenge

Knowledge Hub

Get free Knowledge Hub access

Join our mailing list to receive free access to past recordings, speaker slides, event recaps, learning resources, student opportunities, hiring updates in Hungary, and partner announcements.

Join the Mailing List →

Learning resources

Start learning

Use these pathways to keep learning after the event and prepare for practical student work.

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Green Software Practitioner CourseLearn the foundations of building, maintaining, and running greener applications.

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Event Slides & RecordingsAccess recaps, speaker materials, and community learning notes.

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Student OpportunitiesExplore internships, project pathways, and guided build labs.

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Green AI & EngineeringFollow future challenges, hackathons, and applied learning opportunities.

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Community UpdatesStay connected to upcoming events, partners, and local opportunities.

Partner pathway

Partner with the Student Edition

We are looking for companies, universities, educators, funders, and community partners who want to support student learning, sustainable software engineering, green AI, environmental data projects, mentoring, and practical build labs in Hungary.

Sponsor a student session
Provide a project brief
Offer mentors
Support internships
Host a demo day
Connect students to hiring managers

Partner With Us →

Future
Partners