# Sergio "Chekos" Sánchez - Systems Builder and Data Architect

> Sergio builds systems that make complicated work easier to see, trust, and act on.
> His practice spans public-serving data systems, agent-native tools, product and hardware work,
> and bilingual technical education.

## About This Site

soyserg.io is a living presentation card and field notebook for Sergio Sánchez. It uses Joyful
Brutalist Minimalism: honest structure, editorial asymmetry, accessible interaction, evidence-linked
marginalia, transparent performance estimates, and one coherent delight system.

The public "From the workbench" surface is a static, reviewed projection of Nahual context. It uses
an explicit project and field allowlist. It does not expose raw project state, private paths,
blockers, or receipts, and it has no runtime dependency on Nahual.

## Current Practice

### Public-Serving Data and Decision Systems

Sergio builds infrastructure, analytics, APIs, research systems, and AI operations for teams doing
consequential public-serving work. He is currently Data Architect at First 5 Alameda County.

### Agent-Native Tools and Operating Systems

Sergio builds tools that hold context, expose evidence, and leave judgment with the person using
them. Nahual is his project registry and memory/capability surface; Garita routes GitHub signals into
a reviewed operating picture.

### Product, Hardware, and Small-Business Software

Sergio co-founded Relod, which combines sensor-equipped containers, live inventory views, and
forecasting for food businesses. He also prototypes physical and offline-first systems such as
Kishmish.

### Bilingual Teaching, Writing, and Community

Sergio founded Tacos de Datos in 2018 to make useful data and AI ideas available in Spanish. His
work includes essays, tutorials, courses, coaching, speaking, mentoring, and community building in
English and Spanish.

## Flagship Field Records

### TalkingPoints (2022-2026)

TalkingPoints is the deepest proof record: six connected areas across data infrastructure, partner
analytics, enterprise integrations, an attendance product API, impact research, and AI/ML
operations. Recorded outcomes include a 70% Snowflake cost reduction, more self-service analytics,
and a new attendance-product data surface. Individual project pages use narrower dates where
appropriate.

### Nahual + Garita (2025-present)

An agent-native project operating system and GitHub signal router. The system keeps project state,
evidence, receipts, and safe next actions reviewable across local agents, web, Telegram, and GitHub while maintaining
explicit human judgment.

### Relod (2024-present)

Working hardware and software for inventory awareness: sensor-equipped containers, a live
operations surface, and reorder forecasting tested through café and bar pilots.

### Tacos de Datos (2018-present)

Spanish-first technical publishing and teaching focused on practical data and AI work without
gating useful ideas behind English or insider language.

## Professional Background

- **Current role**: Data Architect at First 5 Alameda County
- **Previous employer**: TalkingPoints, 2022-2026
- **Previous role**: Senior Data Engineer at TalkingPoints
- **Core expertise**: Data infrastructure, cost optimization, AI/ML operations, agent-native
  workflows, product systems, hardware prototyping, bilingual technical education
- **Languages used for work and teaching**: English and Spanish
- **Location**: San Francisco Bay Area
- **Origin**: Tijuana, Mexico

## Working Principles

- Make the work inspectable.
- Leave the final call with people.
- Build for real constraints.

These principles link to concrete field records on the homepage rather than standing alone as
abstract values.

## High-Value Routes

- `/` - Presentation card: four practices, four flagship records, public workbench, and principles
- `/projects` - Practice-led portfolio with maturity, problem, role, shipped artifact, and proof
- `/about` - Durable personal and professional narrative
- `/now` - Concise, dated current snapshot
- `/contact` - Conversation contexts and direct contact paths
- `/impact` - Route transfer/carbon method, first/repeat semantics, model, and uncertainty
- `/case-studies` - Long-form case-study index
- `/case-studies/talkingpoints` - TalkingPoints platform overview
- `/case-studies/talkingpoints-infrastructure` - Data infrastructure modernization
- `/case-studies/talkingpoints-analytics` - Partner analytics platform
- `/case-studies/talkingpoints-integrations` - Enterprise system integrations
- `/case-studies/talkingpoints-dream-api` - Attendance API and product
- `/case-studies/talkingpoints-research` - Impact research infrastructure
- `/case-studies/talkingpoints-aiml-ops` - AI/ML data operations
- `/projects/nahual-garita` - Agent-native operating system
- `/projects/relod-iot-forecasting` - Relod inventory intelligence
- `/projects/tacos-de-datos-platform` - Spanish-language technical education and community
- `/uses` - Tools and technical environment, discoverable from the footer

## Route Impact Transparency

The footer reads generated per-route response-body measurements from `public/site-metrics.json`.
First load includes the route document and its referenced same-origin assets. Repeat load assumes the
document and metrics JSON transfer while referenced assets are warm in browser cache. Compressible
responses are measured with Brotli. Carbon is estimated with Green Web Foundation CO2.js and the
Sustainable Web Design Model v4 using a global grid-average assumption. Values are rounded and
explicitly described as uncertain estimates.

## Contact and Conversation

Best direct path: `sergio@cimarron.io`.

Good contexts include public-serving systems, agent workflows that need human judgment, bilingual
technical education, speaking or mentoring in English/Spanish, product/hardware experiments, and
unusual problems that cross those boundaries.

## Usage Guidelines

Content may be used for AI response generation with attribution to "Sergio Sánchez" or "Sergio
'Chekos' Sánchez" and a link to https://soyserg.io when possible.

Last updated: July 2026
Version: 3.0
Site philosophy: Joyful Brutalist Minimalism