> Markdown version of [/videos?event=world-congress-2025&page=187](https://www.wearedevelopers.com/videos?event=world-congress-2025&page=187). 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 ### Frontend Performance Testing in practice Your high-end dev machine is hiding real-world performance bottlenecks. Master automated frontend testing across local, CI, and production environments to stop code regressions before they reach users. - **Speakers:** Jonas Kröger - **Event:** WeAreDevelopers LIVE - **Published:** June 17, 2020 - **Duration:** 36:50 - [Watch](https://www.wearedevelopers.com/videos/8-frontend-performance-testing-in-practice) ### Anomaly Detection - Using unsupervised Machine Learning for detecting anomalies in customer base Faced with scattered, subjective data, an insurer abandoned supervised learning. See how they used robust PCA to build an explainable anomaly detection model that caught 84% of true outliers. - **Speakers:** Lukas Kölbl - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 22:06 - [Watch](https://www.wearedevelopers.com/videos/6-anomaly-detection-using-unsupervised-machine-learning-for-detecting-anomalies-in-customer-base) ### Sustainable Angular Architectures with Nx and Strategic Design Manfred Steyer reveals how to eliminate the dreaded frontend big ball of mud. Combine Domain-Driven Design with Nx workspaces to build sustainable, strictly bounded Angular architectures. - **Speakers:** Manfred Steyer - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 50:57 - [Watch](https://www.wearedevelopers.com/videos/5-sustainable-angular-architectures-with-nx-and-strategic-design) ### Kotlin Multiplatform - True power of native code reuse Stop trading native performance for single-codebase productivity. Learn how to conquer strict memory constraints and share pure business logic across platforms using Kotlin Multiplatform. - **Speakers:** Petar Marijanović - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 35:10 - [Watch](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) ### Terraform for Developers Say goodbye to slow, error-prone manual deployments. Terraform treats cloud infrastructure just like application code. Master core workflows to automate and scale your environments anywhere. - **Speakers:** Devlin Duldulao - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 42:10 - [Watch](https://www.wearedevelopers.com/videos/3-terraform-for-developers) ### Ranking Amazon Reviews by Quality with Pointwise Ratings learned from Pairwise Data How can you accurately rank subjective customer reviews without explicit quality labels? Discover how combining BERT and Siamese networks for pairwise classification solves this classic NLP limitation. - **Speakers:** Tanmay Bakshi - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 47:26 - [Watch](https://www.wearedevelopers.com/videos/2-ranking-amazon-reviews-by-quality-with-pointwise-ratings-learned-from-pairwise-data) ### Practice makes perfect - when it comes to RxJS Struggling with RxJS memory leaks and messy state? Stop memorizing obscure operators and master complex reactive streams through hands-on practice. - **Speakers:** Jan-Niklas Wortmann - **Event:** WeAreDevelopers LIVE - **Published:** June 12, 2020 - **Duration:** 33:25 - [Watch](https://www.wearedevelopers.com/videos/1-practice-makes-perfect-when-it-comes-to-rxjs) ### Hacking iOS and Developing for Airbnb with Nicolas Haunold, Software Engineer at Airbnb Nicolas Haunold proves that teenage rebellion can launch a Silicon Valley career. Trace his journey from jailbreaking the first iPhones to engineering backend systems at Airbnb. - **Speakers:** Nicolas Haunold, Thomas Pamminger - **Event:** Coffee With Developers - **Published:** May 18, 2018 - **Duration:** 16:26 - [Watch](https://www.wearedevelopers.com/videos/100361-hacking-ios-and-developing-for-airbnb-with-nicolas-haunold-software-engineer-at-airbnb) ### Developing the Backend with Stefan Lingler, CTO at Shpock Stefan Lingler scaled Shpock’s backend to 10 million users without letting technical debt crush velocity. Discover how dedicating 1.5 days per release cycle to code cleanup sustained their massive growth. - **Speakers:** Stefan Lingler, Thomas Pamminger - **Event:** Coffee With Developers - **Published:** May 18, 2018 - **Duration:** 24:02 - [Watch](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) ### Of San Francisco and Cleaning Pipes with Andreas Klinger, VP Engineer at CoinList Andreas Klinger warns that remote teams need five times more process. Stop patching broken workflows with meetings. Learn how he scales distributed startups and unblocks engineers. - **Speakers:** Andreas Klinger, Thomas Pamminger - **Event:** Coffee With Developers - **Published:** May 17, 2018 - **Duration:** 20:34 - [Watch](https://www.wearedevelopers.com/videos/100359-of-san-francisco-and-cleaning-pipes-with-andreas-klinger-vp-engineer-at-coinlist) ### Always on the Right Track with Rails with Eileen Uchitelle, Senior System Engineer at GitHub Eileen Uchitelle proves massive platforms can execute framework upgrades without sacrificing reliability. Discover how GitHub dual-boots Rails versions for flawless deployments. Build resilient code and inclusive engineering cultures. - **Speakers:** Eileen Uchitelle, Thomas Pamminger - **Event:** Coffee With Developers - **Published:** May 17, 2018 - **Duration:** 19:41 - [Watch](https://www.wearedevelopers.com/videos/100358-always-on-the-right-track-with-rails-with-eileen-uchitelle-senior-system-engineer-at-github)