> Markdown version of [/videos?event=world-congress-2025&page=66](https://www.wearedevelopers.com/videos?event=world-congress-2025&page=66). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Videos 2243 videos · 24305 moments · 1256.1 hours of content ## All videos ### How to sabotage your software development with agile? – 10 pro tips for guaranteed success Most companies use Agile to accidentally cripple their own engineering teams. Discover 10 sarcastic pro tips detailing exactly what to avoid for true digital-first success. - **Speakers:** Marlene Roth, Tobias Mohr - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 29:03 - [Watch](https://www.wearedevelopers.com/videos/1648-how-to-sabotage-your-software-development-with-agile-10-pro-tips-for-guaranteed-success) ### Let's Get Aggregated: Custom UDAFs in Spark Stop letting expensive data shuffles bottleneck your Spark workflows. Custom UDAFs pre-aggregate data locally, condensing complex analytics into a single highly performant shuffle. - **Speakers:** Nikolai Nikolaev - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 19:58 - [Watch](https://www.wearedevelopers.com/videos/1649-let-s-get-aggregated-custom-udafs-in-spark) ### Beyond Kafka & RabbitMQ: Why NATS is the Future of Microservices Messaging Is Kafka bottlenecking your edge-to-cloud architecture? Discover how NATS delivers nanosecond latencies and processes millions of messages per second using a single resilient 10MB binary. - **Speakers:** Um e Habiba - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 22:01 - [Watch](https://www.wearedevelopers.com/videos/1646-beyond-kafka-rabbitmq-why-nats-is-the-future-of-microservices-messaging) ### Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search Can PostgreSQL outperform specialized search engines? Discover how GetYourGuide migrated from OpenSearch, deeply tuning TOAST tables and JSONB structures to slash API latency by 40%. - **Speakers:** Dharin Shah - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 26:04 - [Watch](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) ### AI Meets Hoare Logic: Revolutionizing Software Testing with Formal Methods Can mathematical proofs replace unit tests? AI makes it possible. Learn how Hoare logic and generative models shift your role from writing tests to validating mathematical certainty. - **Speakers:** Onur Kasimlar - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 19:36 - [Watch](https://www.wearedevelopers.com/videos/1644-ai-meets-hoare-logic-revolutionizing-software-testing-with-formal-methods) ### Coding for Good: Achieving social change with an app In 2012, a hastily built PHP app crashed under massive load but ultimately helped legalize UK same-sex marriage. Learn why developers must ditch perfectionism to drive social change. - **Speakers:** Chris Ward - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 22:35 - [Watch](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) ### How Unit Testing Saved My Career Ann Laura Ecker proves that mastering unit testing will save your engineering career. Learn how adopting TDD and mocking transforms brittle, monolithic chaos into clean, maintainable architecture. - **Speakers:** Annelore Egger - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 26:33 - [Watch](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) ### RPC Reinvented: Asynchronous, Durable, and Agent-Ready What if an API call could safely block for days without timing out? Discover how durable RPC delivers a crash-less programming model perfect for AI agents. - **Speakers:** Maxim Fateev - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 18:07 - [Watch](https://www.wearedevelopers.com/videos/1643-rpc-reinvented-asynchronous-durable-and-agent-ready) ### Introducing Digital Samba Embedded Video Conferencing API MCP Server Stop coding custom video integrations. Start prompting instead. Digital Samba's MCP server lets developers deploy and manage complex video environments instantly using simple natural language commands. - **Speakers:** Robert Strobl - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 4:30 - [Watch](https://www.wearedevelopers.com/videos/1640-introducing-digital-samba-embedded-video-conferencing-api-mcp-server) ### Hello JARVIS - Building Voice Interfaces for Your LLMS Why do most AI voice bots feel awkwardly robotic? Learn to build intuitive, JARVIS-like voice interfaces by engineering responsive state routing, fluid interruptions, and composable LLM pipelines. - **Speakers:** Nathaniel Okenwa - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 28:13 - [Watch](https://www.wearedevelopers.com/videos/1641-hello-jarvis-building-voice-interfaces-for-your-llms) ### Get security done: streamlining application security with Aikido Tired of the endless dependabot doom scroll? Learn how to cut security alert noise by 85% and empower developers to focus on shipping code, not triage. - **Speakers:** Mia Neethling - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 8:27 - [Watch](https://www.wearedevelopers.com/videos/1638-get-security-done-streamlining-application-security-with-aikido) ### APItoolkit: Using Merkle Trees and LLMs to Detect the UnDetectable in Software Monitoring Are missing fields during your deployments silently causing massive data disruptions? Discover how combining Merkle trees and LLMs instantly exposes undetectable software anomalies hidden inside your server logs. - **Speakers:** Anthony Alaribe - **Event:** World Congress 2025 - **Published:** August 20, 2025 - **Duration:** 4:58 - [Watch](https://www.wearedevelopers.com/videos/1639-apitoolkit-using-merkle-trees-and-llms-to-detect-the-undetectable-in-software-monitoring) [Next page](https://www.wearedevelopers.com/videos?page=67)