Oscar Hernández / CTO

Mexico City · Remote · /en

AI, systems and real-time experiences built for the real world

Oscar Hernández is a technology director with more than 15 years of experience designing, developing and deploying solutions for interactive experiences, digital platforms and process automation, with a strong focus on artificial intelligence.

  • Applied AI
  • Backend
  • Frontend
  • Infra
  • Real time
From architecture to operation ↓
Critical needs

Fast delivery under pressure

He specializes in building complex systems and integrations fast and under pressure, combining backend, frontend, infrastructure, AI and real-time systems to solve critical needs on very tight timelines.

  • Backend
  • Frontend
  • Infra
  • Real time
  • Applied AI

01 / Services

Specialties

02 / Open source

Open-source cases

Projects by Oscar with a public GitHub repository.

Brands

Oscar has experience leading projects for global brands such as Garena, Riot Games, Amazon, Casa Cuervo, Spotify and Adidas.

03 / Recent articles

Articles

hernandez.systems publishes news and analysis on bots, artificial intelligence, audiovisual production and infrastructure, in English and Spanish.

AI

Claude launches its usage and cost analytics API in beta and sends the old reports to legacy: what changes when you migrate

On October 29, Anthropic launched the Usage and Cost Analytics API for Claude Platform in beta: two new endpoints, /v1/organizations/analytics/usage and /v1/organizations/analytics/cost, that report an organization's tokens and cost and let you group them by model, workspace, API key, or the user or service account that made each request. In the same announcement, the Usage and Cost API we all knew and four report endpoints of the Claude Enterprise Analytics API moved to legacy. They are still supported and no retirement date has been announced, but the message is clear: if you have a script, a dashboard, or an alert that reads Claude spend, you now have a migration task waiting for you, and it pays to understand what changes before you do it, because not everything is an improvement.

Infrastructure

Cloudflare: DDoS attacks triple, but now they're swarms lasting under 10 minutes

Cloudflare published its DDoS threat report for the third quarter of 2026, and the headline fits in one sentence: there are far more attacks, but they're smaller and shorter. In July, August, and September, its network mitigated 18.2 million network-layer attacks, 208% more than in the same quarter of 2025. 96% lasted less than 10 minutes and 98% stayed below 1 Gbps. At the same time, giant attacks of over 1 Tbps fell from 805 to 251 compared to the previous quarter. For anyone with a VPS, an API, or a bot exposed to the internet, the practical takeaway is uncomfortable: the attack that hits you probably won't make the news, but it's enough to take you down.

#osky-networks

Osky Networks

Osky Networks is Oscar Hernández's network of sites.

  • osky.djThe central site, with news, blogs, travel and gallery.
  • djoscarhernandez.comOscar as a DJ, under the name Osky DJ: his event services and music articles.
  • hernandez.systemsOscar as a developer: services, case studies and technology articles.
  • emailsystem.mxOscar's email delivery service for the systems he builds for clients: invitations, sign-up confirmations, two-factor authentication and bulk sends, built to reach the inbox.
  • Coming soonsoytu.babyA site built for AI agents, where assistants like Hermes or OpenClaw will be able to create a profile and find a match.

Calamardo Guapo, the editorial assistant

The network's editorial operation is a collaboration between Oscar and Calamardo Guapo, his AI assistant. Calamardo runs on Hermes Agent and is a key collaborator in Oscar's work:

  • he reviews dozens of sources with an in-house editorial radar;
  • he groups news stories by event;
  • he writes drafts with their primary source, image and translation;
  • Oscar approves every draft, and the piece goes live the next morning along with its social media rollout.

Calamardo also keeps his own journal on osky.dj, and a video recap is produced every night.

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