9 posts · page 1 of 1
How WhatsApp served 2 billion users with just 50 engineers. Covers Erlang/BEAM concurrency, end-to-end encryption, message delivery, and extreme engineering efficiency.
Compare AWS SQS, SNS, and EventBridge for messaging and event-driven architectures. Learn when to use each service with practical examples.
Compare popular message brokers across delivery guarantees, ordering, throughput, and operations to pick the right tool for the job.
Learn how to configure Amazon SQS dead-letter queues (DLQs) to isolate poison messages, debug consumer failures, and protect your workers from infinite retry loops.
A practical comparison of SQS queues, SNS topics, and EventBridge buses. When to use each, how they combine, and patterns that scale in production.
What event-driven architecture really gives you, when to choose it, and the operational realities of running asynchronous systems at scale.
A senior-engineer comparison of Kafka and RabbitMQ: log vs queue semantics, throughput, ordering, retention, and the real selection criteria.
Design a notification service that delivers email, SMS, and push reliably with templating, rate limits, retries, and user preferences.
Design a durable message queue like Kafka or Pulsar. Covers partitions, replication, consumer groups, ordering guarantees, and exactly-once semantics in practice.