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​🚀Solana Munich Meetup of 2025 🚀 ​Join us for an unforgettable evening in collaboration with 1e9 at their amazing venue!

​For this meetup, we have invited fellow members from Superteam Germany to say a few words and join us for our get-together. ​Furthermore, we will talk about upcoming hackathons and everything you need to know in order to participate! ​To top it off, there will be plenty of networking and pizza as usual. 🍕🤝

​Agenda

• ​Coming soon!
• ​Pizza and networking

​📅 Date: February 26, 2025 ​🕒 Time: 6:00 PM ​📍 Location: Deutsches Museum, Museumsinsel 1, 80538 München ​@ Forum der Zukunft, 1E9 Denkfabrik GmbH c/o ​🌟 Don’t miss this unique chance to connect with blockchain enthusiasts and developers, share ideas, and join the conversation shaping tomorrow’s technology. ​Save the date, bring your enthusiasm, and let’s make this a night to remember! 🙌

​What this event is about:

• ​Get together for food, drinks, and hanging out with fellow Solana builders
• ​Network and discuss your experiences in the Solana ecosystem
• ​Share your vision and hopes for the ecosystem

Untested API changes are one of the biggest silent killers in software — causing 60% of failures and leaving teams scrambling to fix issues late in the game. But with tight backend development deadlines, writing and maintaining API tests often feels like an impossible task. What if testing could keep up with development — effortlessly?

The Test Tribe 5th Berlin Meetup

📅 Date: February 27, 2025 (Thursday) ⏰ Time: 6:30 PM – 8:30 PM 📍 Location: N26 Bank AG, Berlin

Session Topic: From Network Tab to API Test with AI With tight deadlines in backend development, finding time to create API tests is a challenge. What if you could automatically generate tests from real network traffic? In this talk, I’ll show our current test automation setup in K6 and demonstrate how I leveraged GenAI to generate tests automatically by extracting network calls directly from Chrome’s dev tools. You’ll learn how to turn a GraphQL query into a test, refine prompts for complex cases, and strike the right balance between AI and scripting for scalable, reliable testing. Take away practical insights to elevate your backend test automation process.

Speaker: Anaïs van Asselt Anaïs van Asselt is a quality coach and test automation enthusiast with over 10 years of experience in web and backend testing across various organizations. She collaborates closely with developers, applying a context-driven approach to sustainable test automation. Her passion for sustainability—both in QA and beyond—led her to move to Berlin in 2022 to join Choco, a startup on a mission to reduce global food waste. As one of two quality engineers at Choco, she works with product teams to embed quality-first principles within the SDLC, standardize test automation, and integrate QA solutions into CI/CD pipelines.

Agenda:

• 6:30 PM - 6:45 PM: Registration & Introductions
• 6:45 PM - 7:30 PM: Session by Anaïs van Asselt (Quality coach and Test Automation Enthusiast)
• 7:30 PM - 08:00 PM: Q&A
• 8:00 PM - 08:30 PM: Networking over snacks
• 8:30 PM - Meetup comes to an end

Mark your calendar and join us for an evening of learning, networking, and innovation in test automation!

Attendees are requested to bring a valid ID card for verification at the venue. This will be required for entry and registration purposes.

About The Test Tribe: The Test Tribe is the World’s Largest Software Testing Community, empowering global testers since 2018. We drive upskilling and growth through Expert Courses, Memberships, Cohorts, Mixers, and Events. With 270+ events and 120K+ members in 130+ countries, we foster collaboration, learning, and career growth. By RSVPing for this event, you agree to have read our Terms and Conditions and Privacy Policy and consent to being contacted by The Test Tribe and our event partners.

Dear Community,

We’re back with another exciting session—this time embracing the vibe of the AWS GenAI Loft! After an intense day of learning, let’s wind down and continue the discussions in a cozy, friendly community atmosphere.

Join us at Mitosis LAB, the very same venue as the AWS GenAI Loft, for an evening of insightful community talks, networking, and knowledge sharing. Whether you’re deep into the technical topics, or just eager to connect with fellow AWS enthusiasts, this is the perfect opportunity to learn, exchange ideas, and enjoy great company.

📢 Those who registered at GenAI Loft page can participate all-day sessions, including this (AWS UG Berlin February) session. If you register yourself here at Meetup.com, you can only attend this (AWS UG Berlin February) session.

For further information, check out the details below, and we look forward to having all of you with us!

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18:00 - Warming up and networking chat 18:15 - Intro by AWS UG Berlin 18:30 - 19:15 - Sikandra Chaudhary // A peek into Amazon Aurora DSQL

Amazon Aurora DSQL is a new Serverless, PostgreSQL-compatible distributed SQL database that offers automatic scaling and infrastructure management with no maintenance downtime. It provides active-active high availability with up to 99.999% uptime, making it ideal for microservices and event-driven architectures.

19:15 - 19:40 - Network break with snacks & drinks

19:40 - 20:25 - Heiko Rothe // EKS-cellent Orchestration: Managing Infrastructure with AWS Step Functions

Managing complex infrastructure like hundreds of EKS clusters with numerous installed tools can be challenging. With various failure scenarios, migrations and external integrations, reliable automation becomes a must.

We'll share how Delivery Hero's Platform team tackled this by building a serverless application using AWS Step Functions. We’ll show how this allows us to spin up hundreds of fully provisioned Kubernetes environments on demand, improving operational efficiency and scalability. By the end, you'll understand why AWS Step Functions is surprisingly effective for this and when this approach is right for your projects.

20:25 - 20:45 - Closing Announcements & Networking

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Very Important: There is no "waitlist" for our regular sessions. However, there are limited seats available. If you want to make sure you can attend:

Register yourself with your "full name" at GenAI Loft website Arrive on time - seats are first come, first serve.

As soon as there are seats available, you are welcome to join with your registration. In case there are no more seats available, we won't be able to let you join us this time. We thank you very much for your understanding!

===================================================

Additional Information

This event is wheelchair friendly. Help us spread the word, and invite your friends & colleagues! If you're attending with wheelchair and need assistance, please mail us: [email protected] for further details.

Would you like to host AWS UG Berlin events at your company? Register here Would you like to speak at AWS UG Berlin sessions? Submit your talk here

Welcome to the PyData Berlin January meetup!

Please provide your first and last name, current role and organization name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.

We would like to welcome you all starting from 18:45. There will be food and drinks. The talks begin around 19.30 and the doors will close at 19:30. Make sure to arrive on time!

Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.

Host: Google is excited to welcome you to this month's version of PyData. ************************************************************************** The Lineup for the evening

Talk 1: Vector Streaming: Memory-efficient Indexing to VectorDB Abstract: Embedding creation is mostly done synchronously; a lot of time is wasted while the chunks are being created, as chunking is not a compute-heavy operation. As the chunks are being made, passing them to the embedding model would be efficient. This problem further intensifies with late interaction embeddings like CoLBert or ColPali. The solution is to create an asynchronous chunking and embedding task. We can effectively spawn threads to handle this task using Rust's concurrency patterns and thread safety. This is done using Rust's MPSC (Multi-producer Single Consumer) module, which passes messages between threads. Thus, this creates a stream of chunks passed into the embedding thread with a buffer. Once the buffer is complete, it embeds the chunks and sends the embeddings back to the main thread, where they are sent to the vector database. This ensures no time is wasted on a single operation and no bottlenecks. Moreover, only the chunks and embeddings in the buffer are stored in the system memory. They are erased from the memory once moved to the vector database. All this is then bound into Python using pyo3 and maturin, so it's easily accessible from Python, but the core is still asynchronous with Rust.

Speaker: Sonam Pankaj Bio: Sonam is the Generative AI Evangelist at Articul8. She is also the co-creator of EmbedAnything, a Rust-based library that streamlines ingestion, inference, and indexing and provides you blazing speed in your genAI pipeline. She has previously worked as an AI researcher at Saama and has worked in clinical trials. Her work has been published in the ACL Anthology, and she is passionate about speaking at developer conferences and mentoring the tech community.

Talk 2: Fine-Tuning SLMs like Phi-3x-Vision: Insights from Scene Analysis in ADAS Abstract: Fine-tuning AI models isn’t just for big research labs—it’s a powerful way to address specific real-world problems and improve model performance. In this talk, Amit will discuss the key aspects of fine-tuning small language models (SLMs) like Phi-3x-vision and how one can setup fine-tuning workflow using Hugging Face libraries. He’ll outline key considerations, approaches, essential components, and tools that simplify the process. Using an Advanced Driver Assistance Systems (ADAS) use case, he will demonstrate how fine-tuning helped improve anomaly detection in road scene analytics. The session will cover practical challenges, lessons learned, and broader takeaways—providing a clear understanding of how fine-tuning can be applied across different domains. Whether you’re a data scientist, ML engineer, developer, or just curious about AI customization, this talk will offer valuable insights into making models more effective for specialized tasks.

Speaker: Amit Tyagi Bio: Amit is a Lead Applied Scientist at Microsoft Healthcare and Life Sciences, leading the EU expansion of DAX Copilot. He focuses on developing and optimizing AI models for healthcare, ensuring they align with regulatory and operational needs in the region. Before this, he worked in the customer-facing Enterprise team on various AI-driven solutions, including an autonomous driving project where he fine-tuned vision and language models for scene analytics. He also contributed to AI projects in forecasting, retrieval-augmented generation (RAG) chatbots, and other domain-specific SLM fine-tuning efforts.

Lightning talks There will be slots for 2-3 Lightning Talks (3-5 Minutes for each) between the two main talks. Kindly let us know if you would like to present something :)

*** NumFOCUS Code of Conduct THE SHORT VERSION Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS. All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate. NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form. Thank you for helping make this a welcoming, friendly community for all. If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct ***

Join us for an exciting networking and knowledge-sharing evening at the Rust Nation Pre-Conference Developer Meetup! As a prelude to the highly anticipated Rust Nation Conference, this meetup offers Rustaceans who have flown in to meet the London community, forge new friendships, and engage in insightful discussions.

Tickets are still available for the conference. https://www.rustnationuk.com/tickets

Community Showcase Speakers

Drew Miller Founder of Tritium

Drew is a former corporate lawyer turned Rust developer, bridging the worlds of law and code.

In this talk, he'll unveil the work-in-progress IDE for Lawyers built in Rust, designed to streamline legal workflows. Discover how Rust's safety and performance empower next-generation legal tools that promise to transform how lawyers worldwide analyse, draft, and swiftly finalise critical documents.

LinkedIn: https://www.linkedin.com/in/tritium-drew-miller/

Sean Borg Sean is a Rust developer and creator of Android apps such as Track-a-Train and UpLine. When he is not working on his ever-growing list of personal open-source projects (see http://seanborg.tech) or for commercial clients, he can usually be found ice skating or on his canal boat.

Sean is also a co-organiser of (https://rustmanchester.co.uk)

Sean will talk about using Crux in a multi-page Android app in this talk. How I structured the code, the naming convention I settled on, and the pros and cons of using Crux for an Android app.

Refreshments There will be pizza and drinks courtesy of Smarkets.

🗺 Hey PyData Hamburg Community 💚, Happy new 2025!! The PyData Hamburg community is hosting an exciting first meetup in 2025! This event is sponsored by Google Hamburg. We are looking forward to an evening of learning and collaboration! (drum rolls & background music please♬ ♭) The talk schedule is as follows:

💫💙The First Speaker - Dr. Tobias Gärtner Linkedin link: https://www.linkedin.com/in/tobias-g%C3%A4rtner-at-google/ The topic: Let Google do the boring stuff: MLOps for lone wolves and world conquerors alike Tired of the endless cycle of model training, deployment, and monitoring? Wish you could focus on the exciting parts of machine learning instead of the tedious infrastructure management? This talk explores how Google Vertex AI can streamline your MLOps workflow, whether you're a solo data scientist or part of a large team. We'll dive into: •⁠ ⁠Automated model training and deployment: Vertex AI's custom training options and Vizier allow you to build, tune, and deploy high-quality models with minimal code. •⁠ ⁠Simplified model monitoring and management: Track model performance, identify drift and retrain models with ease using Vertex AI's built-in tools. •⁠ ⁠Scalable infrastructure: Vertex AI provides the infrastructure you need to run your ML workloads, from data preprocessing to model serving, without worrying about scaling or resource management. Learn how Vertex AI can free you from the "boring stuff" and empower you to focus on what matters: building innovative data products that drive real-world impact. 💫💙 The Second Speaker - Dr. Alexander Meier Linkedin link: https://www.linkedin.com/in/reiemrednaxela?utm_source=share&utm_campaign=share_via&utm_content=profile&utm_medium=android_app The topic: Mind the Gap: Forecasting Demand from Censored Sales Data This talk explores how to handle demand forecasting when the historical sales data is censored by inventory or supply constraints. We will cover different modeling techniques, show how to evaluate them properly and walk through a simulation study that compares various approaches.

⭐️Agenda⭐️: •⁠ ⁠18:00 - Open Doors •⁠ ⁠18:20 - Short Intro •⁠ ⁠18:30 -19:00 First Talk(Dr. Tobias Gärtner) and Questions •⁠ ⁠19:00 - 19:30 Break -Networking & food/snacks •⁠ ⁠19:30 - 20:00 Second Talk(Dr. Alexander Meier) and Questions •⁠ ⁠20:00 - 20:45 Networking & food/snacks

Dear all 💜 We are excited to invite you to our next AWS Women’s User Group Berlin session! 🚨Attention🚨 Please note that this user group is specifically for WOMEN and FLINTA (female, lesbian, inter, trans, non-binary, and agender) ONLY. If you do not identify as one of these, please check out the AWS User Group Berlin.** 🎟️ RSVP Now: Please register for the event via the Meetup app with a valid name.

✨ The Evening ✨ 📆 Date: 11th February 2025 📍 Venue: Deloitte Office, Hohenzollerndamm 150, 14199 Berlin 🕟 Time: 06:00 PM - 9:00 PM

6:00 PM 🚪 Doors Open, Warming Up, and Networking

6:30 PM 🌟 Talk 1: Empowering Data Mesh Governance with Amazon DataZone Discover how Amazon DataZone simplifies governance for modern data architectures, enabling federated governance, secure access control, and automated metadata management. Learn about the evolution from traditional platforms to data mesh and how it addresses complex data challenges in decentralized environments. 🎤 Speakers:

• Amelisa Brari: Senior Cloud & Data Engineer Consultant at Deloitte with expertise in designing and managing scalable cloud-based data applications.
• Olga Woschitz: Cloud Solutions Engineer Consultant at Deloitte, specializing in serverless architectures and optimizing AWS accounts.

7:15 PM ☕ Networking Break

7:45 PM 💡 Talk 2: Evaluating Large Language Models for Your Applications and Why It Matters Confused by the overwhelming metrics for evaluating LLMs? This talk will guide you through key evaluation metrics, tools, and frameworks tailored to specific use cases, including mitigating social biases and extracting interpretable features. Gain clarity on LLM evaluation to build better generative AI applications. 🎤 Speaker:

• Mia Chang: ML Specialist Solutions Architect at AWS, NLP expert, and author, with extensive experience in AI/ML workloads on the cloud.

8:30 PM - 9:00 PM 🥂 Community Networking

HUGE THANKS TO OUR SPONSORS AND HOSTS Session sponsored by: Deloitte WUG is supported by: DEMICON base2services

******We inform all attendees that photographs will be taken during the meetup, and they will only be used by the event organizers for documentation and promotional purposes.** The AWS Women’s User Group marks the very first official women-centric AWS User Group in DACH and EMEA. This event serves as a secure and supportive platform for women who want to share their AWS knowledge, passion for cloud computing and advance their career through targeted learning opportunities. *We extend a warm invitation to FLINTA individuals who are interested in being part of our User Group. Code of Conduct At the AWS Women's User Group in Berlin, we have a strong and unequivocal code of conduct in place to create a safe and empowering environment for all. *** Would you like to host a future AWS Women’s User Group Meetup at your company? Register here. Would you like to speak at AWS Women’s User Group Meetup? Submit your talk here.

Welcome to the wonderful February of Pydata Berlin meetup!

We would like to welcome you all starting from 18:45. The talks begin around 19.15.

Please provide your first and last name for the registration because this is required for the venue's entry policy. If you cannot attend, please cancel your spot so others are able to join as the space is limited.

************************************************************************** The Lineup for the Evening

Talk 1: Exploiting Data Structure and Geometry with a Diffusion-based Graph Neural Network

Abstract: Exploiting the problem's underlying structure can help improve the performance of deep learning models. This is in particular true for applications that deal with graphs, where graph neural networks have often become the state-of-the-art. In this talk, I will introduce a novel graph neural network based on diffusion in manifolds and explain how it can exploit several common characteristics of learning problems on graphs for better results. In particular, I will discuss how its invariance/equivariance properties can boost performance. The network can handle node features from general Riemannian manifolds, which opens up a broad spectrum of possible applications.

Speaker: Dr. Martin Hanik

Talk 2: Instructions Fine-tuning using Alpaca: Lessons Learned and Practical Considerations

Abstract: Large language models became the workhorse for natural language processing tasks. By formulating a task definition in a prompt, LLMs such as Alpaca achieve state-of-the-art effectiveness on many NLP tasks (e.g., Sentiment Analysis). In this presentation, I will explain the difference between instruction fine-tuning, prompting, and prompt tuning. Then, I will present a use case for fine-tuning Alpaca on Sentiment Analysis and compare it with prompting. Finally, I will present lessons learned for formulating the instructions and instruction fine-tuning using Alpaca.

Speaker: Yamen Ajjour is a postdoctoral researcher at Leibniz University Hannover. At the Institute for Artificial Intelligence, he is doing research on argument generation and Large Language Models. In his Ph.D. time in Weimar, Yamen worked with other researchers on developing the first argument search engine, which retrieves pro and con arguments for a given controversial topic. Yamen was awarded the Best Paper Award at the German Conference for Artificial Intelligence in 2019.

There will be slots for 2-3 Lightning Talks (5-6 Minutes for each). Kindly let us know if you would like to present something at the start of the meetup :)

*** NumFOCUS Code of Conduct THE SHORT VERSION Be kind to others. Do not insult or put down others. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for NumFOCUS. All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery are not appropriate. NumFOCUS is dedicated to providing a harassment-free community for everyone, regardless of gender, sexual orientation, gender identity, and expression, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of community members in any form. Thank you for helping make this a welcoming, friendly community for all. If you haven't yet, please read the detailed version here: https://numfocus.org/code-of-conduct *** HOSTS: GetYourGuide is the best place to unlock unforgettable travel experiences all over the world. See our open positions on careers.getyourguide.com or get a behind-the-scenes look at life at GetYourGuide on our blog: inside.getyourguide.com.

Dear all,

January was a blast, we had amazing talks on the meetup and delivered a Big Data workshop. It will be hard to beat, but we will try by bringing two new talks in a venue hosted by Shiftmove.

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The evening

18:30 - Warming up and networking chat 18:45 - Welcome talk

19:00 - 19:45 - Renato Losio // Balancing Acts: A Developer’s Journey with RDS

The era when a web application could only choose RDS for MySQL as a relational database on AWS is long gone. Today, an array of engines and deployment options, including RDS, Aurora, and serverless choices, is available. AWS provides many managed databases, each offering multiple options, pricing models, and deployment patterns: how does one strike a balance between maintaining a simple architecture and succumbing to FOMO (Fear of Missing Out)? When is it beneficial to use a serverless option? We will conclude with a simple unconventional demo.

About Renato: Renato has extensive experience as a cloud architect, tech lead, and cloud services specialist. Currently, he lives between Trieste and Berlin and works remotely as a principal cloud architect. His primary areas of interest include cloud services and relational databases. He is an editor at InfoQ and a recognized AWS Data Hero.

19:45 - 20:15 - Short break with snacks and drinks

20:15 - 21:00 - Johannes Langer & Miha Zeleznikar // How Deutsche Bahn Uses MLOps on Amazon SageMaker to Stay Ahead of Fraudsters

Deutsche Bahn, the German national railway company, is the second-largest transport company in the world and the largest railway operator and infrastructure owner in Europe. Annually, the company sells over 100 million tickets online and has prioritised not only preventing fraud, but also ensuring explainability and ethical use of AI in its processes. By training and deploying machine learning models through Amazon SageMaker, Deutsche Bahn built a solution that is both effective and scalable while ensuring the security of their ticket transactions. Join us to learn how Deutsche Bahn has implemented their fraud prevention solution leveraging MLOps practices on Amazon SageMaker to serve 300k transactions per day in under 250ms.

About Johannes: Johannes is a Senior Solutions Architect at AWS, working with enterprise customers in Germany. Johannes is passionate about applying machine learning to solve real business problems. In his personal life, Johannes enjoys working on home improvement projects and spending time outdoors with his family. About Miha: Miha is Lead Enterprise Architect at DB Systel. He specializes in leveraging the power of machine learning to drive innovation and efficiency across the organization. With a keen focus on building robust, scalable cloud solutions, his work centers on transforming complex business challenges into actionable data-driven strategies.

21:00 - 21:15 Closing Announcements

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Additional Information Would you like to host AWS UG MeetUp at your company? Register here Would you like to speak at AWS UG MeetUp? Submit your talk here

Bridging the Gap with Modern Frontend!: The role of frontend in product development 🚀

After a fantastic 2023, we are excited to kick off 2024 with a bang! Join us for our first event of the year - Engineering Roundabout "Bridging the Gap with Modern Frontend," hosted by UnderwriteMe.

🗓️Date: February 8, 2024 🕧Time: 6:00 PM - 9:00 PM 📍Location: Tower Bridge House, St. Katharine’s Way, London, E1W 1BA UK 🚇 Nearest Station: Tower Hill, Tower Bridge, Fenchurch Street, Aldgate

Come discover how modern frontend practices are bridging gaps and driving innovation. Engage in insightful discussions, expand your network, and be part of an evening designed to elevate your understanding of frontend technologies.

🎟️ Limited RSVPs: We anticipate high demand for this event, and spots are limited. Secure your place early to be part of this enriching experience.

RSVP today and be ready to dive into the future of frontend development!

Host Speaker: Adrian Seijo, Frontend Technical Lead at UnderwriteMe. Talk: Owning the Experience Frontend in a Product Foused Era.

Guest Speaker: Monal Sanghvi, Senior Engineering Manager at Zoa Talk: Navigating the future of frontend with collaboration and automation

Guest Speaker: Johannes Stein, Head of Engineering at Natures Menu Ltd.

Stay tuned for speaker announcements...🔊