Hung Phan
Community@hung-phan · San Mateo, CA
Agent Skills by Hung Phan
Showing 248 vetted skills indexed across 2 GitHub repositories.
hung-phansystem-review
Analyzes system designs using a library of patterns and best practices.
hung-phandistributed-counter
Design distributed counters using sharding, CRDTs, and HyperLogLog.
hung-phanchat-system
Design scalable real-time chat systems with WebSocket gateways and offline delivery.
hung-phanweb-crawler
Design distributed web crawlers with rate limits and robots.txt compliance.
hung-phanstock-exchange
Design a stock exchange matching engine with deterministic state-machine replication.
hung-phanvideo-streaming
Design video streaming platforms with upload-to-transcode pipelines and adaptive bitrate streaming.
hung-phannotification-system
Design a multi-channel notification system with idempotency and quiet hours.
hung-phanframework
Guide candidates through an 8-step system design interview framework.
hung-phanlive-comments
Design live comments chat systems with fanout, sampling, and asynchronous moderation.
hung-phanleaderboard
Design real-time leaderboards with Redis ZSETs for top-K and rank queries.
hung-phandistributed-cache
Analyze distributed cache design for high read load scenarios.
hung-phangeo-spatial-search
Design geospatial search systems using Geohash, S2, R-tree, and Elasticsearch.
hung-phanpayment-system
Design secure payment systems with double-entry ledgers and idempotency keys.
hung-phanride-sharing
Design ride-sharing systems with geospatial indexing, matching algorithms, surge pricing, and ETA models.
hung-phanemail-service
Design transactional email platforms with SMTP, SPF/DKIM/DMARC, and bounce handling architecture.
hung-phanad-click-aggregation
Design high-volume ad click aggregation with Kafka, Flink, Druid, and S3.
hung-phanrealtime-gaming
Design real-time multiplayer gaming backends with UDP transport and anti-cheat strategies.
hung-phanrate-limiter
Design and implement token bucket rate limiters for API systems.
hung-phandistributed-file-storage
Design distributed file storage systems with blob storage, synchronization, and conflict resolution.
hung-phansearch-typeahead
Design search typeahead services with prefix lookup, personalization, and typo tolerance.
hung-phandistributed-job-scheduler
Guide distributed job scheduler design with leader election, retries, and idempotency.
hung-phanurl-shortener
Designs URL shortener systems focusing on ID allocation, caching, and read/write workloads.
hung-phanrecommendation-system
Design two-stage recommender systems with candidate generation and ranking components.
hung-phandistributed-id-generator
Design and implement a distributed ID generator for sharded databases.