Rate Limiting Algorithms, Ranked
Token bucket vs leaky bucket vs sliding window — when each wins.
Amit Kumar Singh1 min read
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11 articlesThe most popular reads right now.
Why Your Cache Hit Rate Lies
Measuring caching effectiveness past the vanity number.
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Postgres Indexes: A Field Guide
B-tree, GIN, BRIN, partial — picking the right index for the query.
Amit Kumar Singh1 min read
Designing for Retries
Timeouts, jitter, and budgets that keep retries from making things worse.
Amit Kumar Singh1 min read
Kubernetes Probes Done Right
Liveness vs readiness vs startup — and the outages from getting them wrong.
Amit Kumar Singh1 min read
Vector Search on a Budget
Getting useful semantic search without a dedicated vector DB.
Amit Kumar Singh1 min read
The Outbox Pattern, Step by Step
Reliably publishing events alongside your database writes.
Amit Kumar Singh1 min read
Connection Pooling Mistakes
The pool-sizing math everyone gets wrong the first time.
Amit Kumar Singh1 min read
HTTP Caching Headers, Demystified
Cache-Control, ETag, and stale-while-revalidate in plain terms.
Amit Kumar Singh1 min read
Zero-Downtime Deploys for Small Teams
Blue-green and rolling deploys without a platform team.
Amit Kumar Singh1 min read
Embeddings for Engineers
A working mental model for what embeddings actually encode.
Amit Kumar Singh1 min read