Veltronyx Blog

Notes on building software that ships.

Engineering write-ups, product breakdowns and lessons from the cloud, AI and security projects we run for our clients.

Building an internal developer platform teams actually use

We built an IDP that cut our deploy time from 40 minutes to 4. Here's the architecture, the golden paths, and the mistakes we made first.

No migration, no rewrite — just disciplined measurement. The five changes that delivered the biggest savings on AWS.

Retrieval-augmented generation is easy to demo and hard to ship. The retrieval, grounding and evaluation choices that separate a toy from production.

Passwords are the weakest link in most breaches. Here's how we rolled out passkeys for a fintech client without locking anyone out.

A beautiful Figma library is worthless if it drifts from the code. How we keep design and implementation in lockstep with tokens.

Events decouple services beautifully — until you're debugging a distributed mystery at 2am. The patterns that keep async systems sane.

You wouldn't ship code without tests. Most teams ship LLM features without evals. Here's how we measure quality before users do.

Your build pipeline has god-mode access to production. Here's how attackers exploit it and the controls that shut the door.

Users expect apps to work on the subway. Building offline-first changes how you think about data, sync and conflict resolution.

Before you reach for a new database, exhaust Postgres. The indexing, query and configuration changes that bought us 10x headroom.