Stackable

🎉 Welcome to Stackable, Stefan Fleckenstein! 🎉 We’re thrilled to welcome Stefan Fleckenstein as our new Chief Information Security Officer (CISO). 🚀 Stefan not only brings many years of IT security expertise but also embodies the spirit of “Security by Doing” - because at Stackable, we don’t just talk about security, it is a core part of our data platform. With SecObserve, an independent open-source vulnerability management tool, he created a solution we rely on every day. SecObserve empowers teams to scan, prioritize, and manage security risks efficiently, making it a game-changer for modern IT infrastructures. A quick Q&A: ❓What motivates you when you get up in the morning?  “I want to make the world a little bit better than it would have been without me. Security and Open Source are two good ways to achieve this, by making secure products available to a wide range of organisations.” ❓Stefan, you are the lead developer of SecObserve, an open-source vulnerability management tool. What was the “aha moment” that led you to start this project?  “There are a lot of commercial vulnerability management tools on the market that are quite costly and at the time had complicated license models. On the other hand there are many open source scanning tools that produce good results but only as files. I wanted to have a system that focuses on software development in cloud environments with an easy to use user interface which easily integrates in CI/CD pipelines. That wasn’t available, so I started building it.” ❓As CISO at Stackable: What specific goals do you have for the first 6 months?  “There are two main goals for my work as CISO at Stackable: Keep the company secure and deliver a secure product to our customers. Stackable has done a lot already to achieve both goals. My task in the first months will be to consolidate everything that is already in place, define a target state and start working with the team to improve our security and resilience.” We’re proud to have a doer like Stefan on board - someone who doesn’t just evangelize security but makes it happen. Welcome to the team!👏 #OpenSource #CISO #YourDataYourPlatform

🔍 Supply Chain Security 2026: Wie wir bei Stackable unsere digitale Lieferkette schützen Supply Chain-Angriffe auf Open Source-Projekte wie npm oder GitHub nehmen zu - doch wie gehen wir bei Stackable damit um? Lars Francke hat in einem Beitrag bei Protector unseren Ansatz vorgestellt: ✅ Kluge Priorisierung: Nicht jede Schwachstelle (CVE) ist kritisch. Wir nutzen EPSS-Scores und Exploit-Datenbanken, um gezielt zu handeln – und vermeiden unnötige Updates, die Stabilität gefährden. ✅ Open Source als Stärke: Durch Community-Unterstützung und Mittel wie SBOM (Software-Bill-of-Materials) erkennen und beheben wir Schwachstellen schneller. ✅ Nachhaltige Sicherheit: Statt hektischer Patches setzen wir auf durchdachte Integrationstests und langfristige Stabilität. Warum das funktioniert: Supply Chain-Sicherheit ist kein Zufall, sondern das Ergebnis klarer Prozesse. Wer seine digitale Lieferkette versteht, kann proaktiv handeln statt zu reagieren. 🔗 Hier geht es zum Artikel: https://lnkd.in/eZyfCaFU #Cybersecurity #SupplyChain #OpenSource #YourDataYourPlatform

🎄 Reflecting on 2025 & Looking Ahead with Gratitude 🎄 As 2025 comes to an end, we would like to take this opportunity to thank you for your trust, collaboration and the ideas you have shared. This year has been incredible, and it’s all thanks to you! 🌍 A Year of Global Growth We had the privilege of working with inspiring customers from all over the world, including Europe, New Zealand, Malaysia and the USA. Your success stories, whether through smarter project rollouts, cost savings, or modernizing data infrastructures, remind us every day why we do what we do. 🚀 Innovation & Community We rolled out three major releases of the Stackable Data Platform, including OpenSearch, and celebrated our 5th anniversary with our first Community Meetup in Munich. It was a day of inspiring talks, great conversations, and celebrating the community that makes Stackable special. 🔮 What’s Next in 2026? We’re excited to explore new possibilities such as notebooks and data catalogs, strengthen our digital supply chain security, and deepen partnerships to bring even more innovation to you. Your feedback will shape our roadmap, so tell us: what are your plans for data in the new year? Thank you for being part of this journey. We wish you a restful holiday season and a bright start to 2026! With gratitude, Sönke, Lars and the entire Stackable team #StackableDataPlatform #YourDataYourPlatform #BigData #OpenSource #

🏁 The Berlin Heist: Go-Karting, Escape Rooms & Big Plans for 2026! 🚀 Last week, our remote-first team came together on-prem in Berlin - not for a robbery, but for a packed week of collaboration and connection. Fresh off completing our year-long initiative on CRD versioning with the 25.11 release, we aligned on what’s next: a major overhaul of our integration test infrastructure. We also took a deeper look into the future of Iceberg REST and data catalogs, and explored new ideas to streamline operator workflows and enhance the usability of OPA/Rego rules. But it wasn’t all work! We put our teamwork to the test with a thrilling go-kart race and an escape room challenge. We also enjoyed a professional photo session and some early Christmas surprises. A big shout-out to Team Code Zero for joining us, and to IONOS Group for hosting us in their inspiring Berlin office. Here’s to more collaboration, innovation, and fun in 2026! 🎊 #StackableDataPlatform #TeamBuilding #BerlinVibes #YourDataYourPlatform

Stackable Data Platform Release 25.11: New Operator for OpenSearch, KRaft for Kafka, and more… 🚀 We’re excited to announce Stackable Data Platform 25.11! 🎉 This release brings our new Operator for OpenSearch, KRaft for Kafka, Spark 4, and more - expanding your data platform’s capabilities with enhanced security and observability. Data Product Highlights include: ✅ OpenSearch 3.1.0 for seamless cluster management ✅ KRaft for Apache Kafka 4.0+ so no more ZooKeeper dependency and improved resilience ✅ Apache Spark 4.0.1 (experimental) with ANSI SQL mode by default ✅ Trino 477 with support for the new universal lakehouse connector New Platform Features: 🛡️ 37 CVEs fixed, including 2 critical and 18 high-severity issues 📊 Enhanced observability with Prometheus annotations ⏳ End-of-Support (EoS) warnings for all operators to stay compliant and up-to-date 👉 For more details, check out the full release post on our website: https://lnkd.in/e8YNrB5W What feature do you like the most, or what would you love to see in the next release? Share your thoughts in the comments below! #StackableDataPlatform #YourDataYourPlatform #BigData #OpenSource

Resilienz im Finanzsektor: Was DORA für die Datensouveränität von Versicherungen bedeutet Die digitale Transformation stellt Versicherungen vor neue Herausforderungen: Cyberrisiken nehmen fast täglich zu, gleichzeitig wächst der Druck, Daten im AI-Zeitalter effizient und sicher verfügbar zu machen.  Regulatorische Anforderungen wie der Digital Operational Resilience Act (DORA) bedeuten hier nicht nur zusätzliche Bürokratie, sondern bieten zugleich auch Chancen. Richtig interpretiert stärken sie die Widerstandsfähigkeit von Finanzinstitutionen. DORA setzt hier neue Standards. In unserem aktuellen Beitrag im Pfefferminzia Magazin erklären wir, wie moderne Dateninfrastrukturen bei Versicherungen DORA-konform gestaltet werden können. Sönke Liebau zeigt auf, wie Datensouveränität und operative Resilienz Hand in Hand gehen. Dabei dreht es sich nicht nur um Compliance, sondern vor allem um die strategische Fähigkeit, in einer dynamischen Welt sicher und flexibel zu handeln! Warum das Thema gerade jetzt relevant ist? Die Finanzbranche steht vor einem Wandel. Aber wer seine Datenarchitektur jetzt zukunftsfest macht, gewinnt nicht nur Compliance, sondern auch mehr Agilität und Wettbewerbsvorteile. Zum Artikel: https://lnkd.in/egDy7F3e #DigitalOperationalResilience #DORA #Datensouveränität #Versicherungen #DataGovernance #FutureOfFinance #Stackable #YourDataYourPlatform

Discovery transforms its AI-driven data platform with Stackable How can you support over 60 data scientists across various business units, such as insurance and health, using a modern, scalable, and open infrastructure? Discovery Limited, one of South Africa’s leading financial services providers, made the leap to a modern, scalable Kubernetes-native data platform with Stackable at its core. The result? ✅ 400 TB migrated in one weekend ✅ Upgraded from HDFS to Vast | Hive/Impala to Trino | Spark 2 to Spark 3 ✅ Future-proof AI infrastructure using Ray, Iceberg, and open-source flexibility ✅ Seamless data virtualisation and simplified operations It was a pleasure for us to collaborate with Discovery’s exceptional data engineering team! They built a high-performance AI platform tailored for advanced analytics, modular upgrades, and real-time workloads. Read the full case study and learn how Stackable can help you to modernise without starting from scratch: https://lnkd.in/ei2-RzPP #BigData #OpenSource #Trino #Iceberg #Spark3 #Ray #Kubernetes #YourDataYourPlatform

Don’t Panic! - Supply-Chain-Angriffe auf Open Source: Was wir bei Stackable tun Die Bedrohungslage ist ernst: Angriffe auf Open-Source-Lieferketten nehmen zu. Doch statt in Panik zu verfallen, setzen wir bei Stackable auf differenzierte Analysen und gezielte Maßnahmen. Denn nicht jede gemeldete Schwachstelle ist gleich ein echtes Risiko. Wir bewerten, welche CVEs wirklich kritisch sind - und handeln dort, wo es zählt. So schaffen wir Vertrauen in eine sichere und offene Datenplattform. 🔗 Mehr Details zu unserem Ansatz lest ihr im Artikel von Lars Francke bei it-daily.net | IT-Verlag GmbH : https://lnkd.in/eSQV_TUq Wie geht ihr mit Supply-Chain-Risiken um? Teilt eure Strategien in den Kommentaren! #OpenSource #Cybersecurity #SupplyChainSecurity #DevSecOps

2,000 followers - thank you for trusting Stackable! We're celebrating a special moment: Stackable has reached 2,000 followers on LinkedIn! For us, this isn't just a number - it's a reflection of the growing community of developers, data engineers, and visionaries who share our passion for an open, modular, and Kubernetes-native data platform. A huge thank you to everyone who has followed, shared, and contributed to the conversation. Your feedback shapes our roadmap, and your use cases drive our way forward. We're just getting started, and we can't wait to see what we'll build next - with you. Here's to the next chapter! What's the one feature or improvement you'd love to see from Stackable? Let's discuss in the comments. #OpenSource #YourDataYourPlatform #DataSovereignty

How GBIF Modernized Biodiversity Research with Stackable The GBIF: The Global Biodiversity Information Facility is on a mission: to make data about all life on Earth - from 18th-century museum specimens to modern DNA barcodes - accessible to everyone. But their aging infrastructure was struggling to keep up with the demands of global research. The solution? A seamless migration to the Stackable Data Platform: ✅ 2 petabytes of data migrated without disruption ✅ Modern open-source tools like Apache Spark 3, Airflow, and Trino for unmatched flexibility ✅ Cost-efficient reuse of existing hardware  ✅ Future-proof architecture to support biodiversity research for years to come This transformation didn’t just upgrade their systems but empowered scientists, policymakers, and conservationists worldwide. Want to know more? Dive into the full case study: https://lnkd.in/ekbj5MFN #OpenSource #BigData #Biodiversity #YourDataYourPlatform #OpenData