~/talks

Yan Cui

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titleconferencedate
How we built an AI-powered code reviewer in 80 hoursNDC Copenhagen 20252025-09-08
Prototype runs in a few hours; the backend takes 80 hours to stabilize using AWS API Gateway, Lambda, EventBridge, DynamoDB and Amazon Bedrock with Anthropic…
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Patterns for efficient serverless developmentCodemotion Madrid 20252025-05-20
Five concrete patterns for fast serverless development: use hexagonal architecture (ports-and-adapters) to isolate business logic and swap adapters for mocks…
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Money-saving tips for the frugal serverless developerDevOps Barcelona 20242024-11-14
Uses concrete fixes: enable billing alarms early, stop Secrets Manager calls per invocation that spiked costs, set CloudWatch retention to ~30 days and sample…
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How to Choose the Right Messaging Service for Your WorkloadGOTO EDA Day 20222022-09-01
Compares AWS bridges and queues by concrete tradeoffs: throughput quotas, Lambda concurrency behavior, cost per million messages and real-world scale…
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Serverless in Production, Lessons from the TrenchesNode Congress 20222022-02-17
This talk provides valuable insights for those considering serverless in 2022, with a focus on troubleshooting and observability using Lumigo. It emphasizes…
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Building Resilient Serverless ApplicationsReliable Web Summit 20212021-08-26
Explains concrete failure modes and fixes: Lambda + API Gateway give multi-AZ but hit a hard 29 second API Gateway timeout, DynamoDB supports DynamoDB global…
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Why your next serverless project should use AppSyncCraft Conference 20212021-06-02
Built a social network in a couple of weeks using AppSync + Lambda + DynamoDB and scales to hundreds of thousands of requests per day while costing about $60…
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Build a social network with Serverless and GraphQLJSWorld Conference 20212021-02-22
Claim: a working social network for university students is Built in 4 weeks using AppSync, Lambda, Algolia and Cognito with a three‑engineer effort and…
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Serverless gives you wingsFrontend Love 20202020-10-01
Case study of moving a small social network from EC2 to serverless with migrated Yopo from EC2 to Lambda, replacing long deploys and 30‑minute downtime and…
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How to build a social network on serverlessapidays Barcelona 20192019-09-12
Migrates a monolith to an event‑driven serverless backend using Kinesis streams, Lambda handlers and per‑service DynamoDB/Redis stores, reaching about 200…
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How to build a social network entirely on serverlessFull Stack Fest 20192019-09-04
Yubl migrates from a monolith to serverless by publishing state changes to Kinesis and wiring Kinesis + Lambda + API Gateway for search, feeds…
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How to build observability into a serverless applicationCraft Conference 20192019-05-07
Shows how to implement log aggregation, tracing and correlation IDs for serverless apps using CloudWatch Logs, API Gateway, SNS/SQS/Kinesis and X‑Ray…
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How to build a social network entirely on serverlessNDC Porto 20192019-02-26
Rebuilds a monolithic social network into an event-driven, serverless system using Kinesis, API Gateway, SQS, Redis, CloudSearch, BigQuery (or Athena + S3 +…
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Applying principles of chaos engineering to serverlessCode Mesh LDN 20182018-11-08
Claims that chaos for serverless focuses on testing behavior not killing servers, and demonstrates concrete techniques: inject latency into HTTP client (config…
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Applying the Principles of Chaos to ServerlessSREcon18 Europe/Middle East/Africa2018-08-29
Applies chaos engineering to AWS Lambda by instrumenting clients and configs rather than killing servers, using X‑Ray and SSM Parameter Store to injectableAll…
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Serverless design patternsVoxxed Days Luxembourg 20182018-06-21
Practical patterns: move periodic work and ops scripts off always-on servers into cron jobs → Lambda via CloudWatch Events to save cost; auto-subscribe new…
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Serverless architectural patternsNDC Oslo 20182018-06-11
Shows concrete serverless choices and tradeoffs: use API Gateway 29s timeout to justify background work; use SQS/SNS/Kinesis/DynamoDB Streams for brokering…
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Serverless in production, an experience reportNDC London 20182018-01-15
Company migrates a monolith to an event-driven, service-oriented system centered on AWS Lambda and ships concrete wins: 170 Lambdas in production, running at…
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Serverless in production, an experience reportBuild Stuff 20172017-11-15
Company moves from EC2 to an event-driven, service-oriented stack centered on AWS Lambda, running 170 Lambda functions in production and paying roughly 5% of…
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Serverless in production, an experience reportCodemotion Milan 20172017-11-10
Project migrates a monolithic backend to an event-driven stack centered on AWS Lambda, reaching 170 Lambda functions and cutting compute cost to roughly 5% of…
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AWS Lambda from the trenchescode.talks 20172017-09-28
Claim: serverless replaces EC2 at large scale with 95% cost saving and over 170+ Lambda functions running in production. Built working Search, Timeline and…
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Taming Cloud Complexity with F# DSLsNDC London 20172017-01-16
The emergence of Cloud platforms has fundamentally changed the IT landscape. However, attempting to ride on this ever-expanding platform ecosystem wave has…
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F# in the Real WorldNDC Sydney 20162016-08-01
Gamesys social team uses F# to run backends for 1 million DAU and about 250 million daily requests, claiming a fivefold server efficiency gain and over 90%…
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Tour of language landscapeThe Lead Developer 20162016-06-23
A whirlwind tour of five languages shows concrete wins not platitudes: S3 type provider generates types on the fly so missing S3 objects fail compile rather…
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Taming Cloud Complexity with F# DSLsLambda Days 20162016-02-25
Slides and more info: http://www.lambdadays.org/lambdadays2016/yan-cui The emergence of Cloud platforms has fundamentally changed the IT landscape, to the…
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F# in the real worldLambda World 20152015-10-24
F# powers backend services for social games serving 1 million DAU and handling 250 million daily requests using AWS (S3, DynamoDB) plus MailboxProcessor actors…
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My adventure with ElmCodemotion Rome 20152015-03-25
Elm demo builds a playable Snake: keyboard arrows sampled at 20 frames per second feed foldp signals to produce a stream of full game states, a random seed…
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F# in Social GamingCode Mesh 20132013-12-03
Backend for social slots and mobile games runs on F# and an actor-based agent/mailbox processor model supporting ~1,000,000 DAU; the slots engine and…
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