Watch more of .local London 2026 → https://www.youtube.com/playlist?list=PL4RCxklHWZ9tH01MTlChYwUqN8Cm2tl2r Speakers: Ibrahim Tamam, Technical Lead, Capgemini Invent Kathryn Sylvester, Senior Product Manager, DWP Digital From postcode-level pilots to a service scaling nationwide, see how a critical UK public service is being modernised without disrupting the millions who rely on it. Drawing on live delivery within the Department for Work and Pensions’ health and disability benefits programme, this session shows how MongoDB’s document model enables claimants to tell their stories in their own words, turning schema flexibility into an accessibility feature as policy and user needs evolve. This session will provide a look at the architecture behind the transformation, including self-contained claims as natural shard keys, document-level schema versioning, multi-AZ resilience, and a Strangler Fig approach that allows new services to grow safely around legacy systems. Explore the engineering decisions that are modernizing public services at scale, ensuring resilience and adaptability for the millions who depend on them. 00:00:00 - Introduction of Speakers 00:00:19 - What is the Personal Independence Payment (PIP) Service? 00:01:04 - Understanding the Claimants and Product Challenges 00:02:28 - The Scale of the DWP Disability Benefit 00:03:25 - COVID-19 as a Catalyst for Digital Transformation 00:04:34 - Designing a User-Centric Digital Application Process 00:06:07 - Engineering Scale: Why Schema Flexibility Matters 00:08:45 - 3 MongoDB Patterns for Scaling National Infrastructure 00:10:32 - Modernizing Legacy Systems with the Strangler Fig Pattern 00:11:29 - The Capgemini, DWP, and MongoDB Partnership 00:12:52 - Old World vs. New World: Impact on the Claimant 00:15:05 - Key Takeaways for Scaling Critical Services 00:16:30 - Q&A: User Authentication via GOV.UK One Login 00:18:31 - Q&A: Data Analytics and Infrastructure Strategy 00:19:56 - Q&A: Document Versioning and Backward Compatibility Subscribe to the MongoDB for Developers YouTube Channel: https://www.youtube.com/@MongoDBDevelopers?sub_confirmation=1 Sign-up for a free cluster → https://www.mongodb.com/cloud/atlas/register Subscribe to MongoDB YouTube→ https://mdb.link/subscribe Visit Mongodb.com → https://mdb.link/MongoDB Read the MongoDB Blog → https://mdb.link/Blog Read the Developer Blog → https://mdb.link/developerblog MongoDB for Developers YouTube Channel → https://www.youtube.com/@MongoDBDevelopers

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