Build with Gemma: GDG Cloud HK - AI-Driven Defense 🛡️🤖

Are you ready to turn bleeding-edge AI security concepts into real-world defensive tools?

Whether you are fresh off the insights from the Google Cloud Security Forum Hong Kong on July 15, or a developer eager to explore the capabilities of open-source AI, this hands-on sprint is for you. Join GDG Cloud Hong Kong on Saturday, July 25, 2026, for an intensive day of collaborative hacking, learning, and building with Google’s latest open-weights model: Gemma 4.

🏆 The Challenge: AI-Driven Blue Team Defenses

During this day-long developer sprint, your mission is to leverage the advanced reasoning capabilities of Gemma 4 to build next-generation cybersecurity defenses. Together with your team, you will design and deploy critical Blue Team solutions, such as:

• Autonomous Threat-Hunting Agents: Architect intelligent, self-directed agents capable of analyzing system behavior and identifying potential threats in real-time.

• Multimodal Architecture Analyzers: Build AI tools that can ingest complex network infrastructure diagrams and cloud-access logs to predict, detect, and neutralize multi-cloud attack vectors.

🚀 Zero LLM Experience? No Problem!

Think you need a Ph.D. in machine learning or years of LLM fine-tuning experience to make an impact? Think again. We are completely lowering the barrier to entry so passionate developers of all backgrounds can participate.

To help you succeed, we provide:

• On-Site Cloud Resources: Get direct access to the infrastructure and compute power needed to deploy and experiment with Gemma 4 models.

• Expert Mentorship: Learn directly from Google Developer Experts (GDEs), industry professionals, and our experienced GDG team members who will be on-site to help you debug and structure your solutions.

🏆 $2,000 USD Prize Pool & Rewards

Thanks to our sponsors, we are offering a total cash prize pool of $2,000 USD distributed across five distinct tiers, alongside cloud credits and credentials to accelerate your developer journey:

Award TierCash PrizeAdditional Perks
🥇 First Place (Grand Prize)$800 USD + Official Winner Certificate
🥈 Second Place$400 USD + Official Winner Certificate
🥉 Third Place$250 USD + Official Winner Certificate
🏅 Fourth Place$250 USD + Official Winner Certificate
⚡ Performance Prize$300 USD + Official Winner Certificate

📊 Evaluation Rubric

The judging process is designed to be swift and impactful, reflecting the rapid 1-day sprint format of this event. Our panel of experts will evaluate your submissions based on how effectively you utilize Gemma 4 models to build innovative and practical applications.

Rather than expecting production-ready polish, judges will focus on the core functionality, creativity, and real-world impact of your prototypes. Below is the official scoring rubric that will be used to evaluate each Kaggle Writeup and accompanying demo:

Criteria DescriptionPoints / Weight
Gemma Integration Did they effectively utilize Gemma 4? Is the model core to the solution?0 - 30 Points (30%)
Innovation & Impact Does the app solve a meaningful problem? Is the approach creative and relevant?0 - 30 Points (30%)
Functionality Does the prototype actually work? Is the demo convincing?0 - 20 Points (20%)
Presentation & Writeup Is the Kaggle Writeup clear? Does it clearly explain the problem and solution?0 - 20 Points (20%)

📅 Event Agenda

• 09:30 AM – 10:00 AM: Registration & Team Formation

• 10:00 AM – 10:30 AM: Defensive AI & Gemma 4 Architecture

• 10:30 AM – 11:30 PM: Ideation, Architecture Setup, & Sprint Kickoff

• 11:30 PM – 04:30 PM: Hacking & Prototyping Sprint (Working lunch not provided)

• 04:30 PM – 05:30 PM: Code Submissions, Live Demos, & Evaluation Review Open

• 05:30 PM – 06:00 PM: Awards Ceremony ($2,000 USD Prize Presentation) & Closing Photos

🎒 Logistics & Preparation

Venue Location

City University of Hong Kong (CityU)

** Campus entry instructions will be emailed to all accepted registrants by 24 July 23:49.

What to Bring

• Your Laptop & Charger: We highly recommend a personal laptop, as corporate machines often have rigid firewalls that can block cloud console environments.

• Kaggle Account: Ensure you have a registered and verified account on Kaggle before arriving, as code submissions and project writeups will be handled through the platform.

Registration Note

This is a strictly hands-on developer session with limited seating capacity. Registration on this page expresses your interest; official confirmation tickets and venue details will be emailed to selected participants based on capacity limits.

Brought to you by GDG Cloud Hong Kong. Connect with local innovators, master open-weights architectures, and build the future of AI safety!

Deadline Application: 23th July 2026, 23:59

Co-organizers:

- City University of Hong Kong - Department of Computer Science
- CSA HK & Macau Chapter

Sponsors:

- Google Cloud Hong Kong
- Hong Kong Cloud Developer Association

Supporting organizer(s)

- Google Developer Group on Campus CityU
- PISA
- ISC2HK
- WITA
- Hong Kong Computer Society
- Hong Kong Cloud Developer Association
- Flutter Hong Kong
- BSides Hong Kong

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