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Santiago Fernández de Valderrama

Hi, I'm @santifer,

Open Source Builder
who ships AI at scale
with HITL + MCP + RAG

BuilderApplied AI Operatorcareer-ops37.3K7.6K

At Santifer iRepair I automated everything I could: from an AI agent that handled 90% of customers to an operating system orchestrating 12 databases.

This still feels like day one.

Bigger teams. Harder problems. End-to-end.

Ready for what's next.

Work Experience

End-to-end ownership across discovery → prioritization → delivery → adoption, collaborating closely with stakeholders and engineering.

AI Product Discovery
Enterprise Solution Architecture
Agentic Workflows
LLMOps & AI Governance
Forward-Deployed Delivery
AI Enablement & Thought Leadership
Zinkee

Zinkee

Seville, Spain

Head of Applied AI

2026 - Present

Building the horizontal AI layer across the company. Powering the next generation of software for SMBs.

Santifer iRepair

Santifer iRepair

santifer irepairSeville, Spain

Founder & Product Lead (AI Automation)

2009 - 2025 · Retail / Services B2B-B2C

  • Mobile, tablet and smartwatch repairs — +30,000 repairs completed
  • Drove full automation transformation across service operations
  • Productionized workflows with validation checks, error handling, retries
  • Documented SOPs and trained staff for adoption
  • Closed the Problem → Solution → Self-service loop for ~90% of customers
  • Direct front-of-house experience (2009-2015) and hands-on repairs (2009-2019)
  • Philosophy: if it repeats, automate it — for the customer and for the team

Corporate clients

Marriott
Huawei
Eli LillyEli Lilly
Heineken
BrenntagBrenntag
XylemXylem
Case Study: Business OS with Airtable
Source of Truth

Business Operating System

Complete business operating system built 100% in Airtable. Single source of truth powering all systems: web, AI agent, GPTs, communications, and operations.

  • Full ERP with 496 fields and 50+ automatic validations
  • CRM with gamification (Bronze→Platinum) and Aircall integrated
  • Headless CMS → Auto-synced website
  • Smart inventory with automatic min-stock purchase orders
  • Omnichannel comms: SMS, WhatsApp, email automations
  • Automated accounting: bank reconciliation, invoices and expenses
  • Online booking with stock check: confirms appointment or triggers urgent order
Case Study: Business OS with Airtable
+2,100
fields
12
connected bases
+170h
automated / month
~90% self-service

Omnichannel AI Agent "Jacobo"

Voice (ElevenLabs) + WhatsApp (n8n / WATI) + Aircall cloud PBX. Sub-agent orchestration via tool calling.

  • Main router: classifies intent and delegates to sub-agents
  • Appointments sub-agent: checks slots, books, confirms via WhatsApp
  • Discounts sub-agent: calculates promos based on customer history
  • Orders sub-agent: validates stock, creates order, notifies ETA
  • HITL handoff: escalates to human with full context
Case Study: Multi-Agent AI
Only one in sector in Spain

Programmatic Web + Automated SEO

100% custom-made (2024). Headless CMS in Airtable as source of truth, integrated with ERP, generating Astro website with programmatic SEO.

  • Pages per model / repair auto-generated
  • Before / after photos + internal / external reviews from ERP
  • Search volume via DataForSEO by taxonomy
  • Automated decision: indexable (SEO) vs UX-only
  • Crawl budget optimization
Case Study: Programmatic SEO
Exit 2025

Built, scaled, and sold the business as a going concern

LICO Cosmetics

LICO Cosmetics

licocosmetics.es Seville, Spain

Airtable & E-commerce Operations Consultant

2024 - 2025 · D2C Cosmetics · Shopify

Designed Airtable as internal Operating System: inventory, orders, and tasks. Co-design workshops with operations. Airtable ↔ Shopify integration analysis.

"His expertise was key to structuring our data properly — so we spend less time on admin and more on work that actually moves the needle."

Juan Sabaté
Juan Sabatéco-CEO @ LICO Cosmetics
Everis (NTT DATA)

Everis (NTT DATA)

Test Coordinator (8 testers) & Software Analyst

2007 - 2009 · Consulting

Coordinated multi-vendor healthcare product testing: managed functional test suites for a team of 8 testers and acted as liaison with development, business consulting, and other project areas.

Self-learning Medical Coding Thesaurus

RL-style recommendation engine for a public healthcare client. Learned from clinicians' choices to surface better coding suggestions — cutting manual effort and improving accuracy over time.

"Huge enthusiasm and drive from day one. He refused to settle for his starting role — that restlessness pushed him to grow fast. Committed, reliable, and above all, someone with real attitude."

Manuel López Alcázar
Manuel López AlcázarPartner @ KPMG (was my supervisor at Everis)

Projects

santifer

AI Agent Infrastructure

Not one agent. Seven. Each specialized in one dimension. life-os orchestrates them.

Orquestador
life-osprivate

Personal orchestrator + knowledge management

brand-opsprivate

Cross-platform social media triage

venture-opsprivate

Strategic governance

career-ops-maintainerprivate

PRs, issues, releases for career-ops

community-opsprivate

Discord community management (1.6K+ members)

portfolio-opsprivate

Portfolio with LLMOps chatbot + auto-update

applied-ai-opsprivate

Onboarding, codebase navigation, specs with AI for my role

Life OS

Private · On Request

Personal productivity system I built to run my life through conversation. Orchestrates Claude Code with native MCPs (Apple Reminders/Calendar, GitHub), 15 custom skills, 5 automation hooks, and semantic search (BM25 + SQLite FTS5). Pipes into Content Digest for a full knowledge loop.

Claude CodePythonMCPSQLite FTS5Apple APIs

Career Ops

Open Source

HITL job search pipeline — AI periodically evaluates offers across 10 dimensions (A-F scoring), spins up ATS-optimized PDF resumes per listing, and pre-fills applications. I review, filter, and decide which ones to ship. Batch-processes 48+ offers in parallel (conductor + workers), scans portals with dedup, and adapts narrative framing per role archetype. Plugs into Life OS as a specialized skill.

Claude CodeBatch ArchitectureWebSearchHITL Design

santifer.io

This Portfolio

Interactive CV with AI-augmented SDLC. Built with Claudeable, monitored with Claude Pulse, animations debugged with Claude Eye. SSR prerender, bilingual i18n, and automated SEO.

React 19TypeScriptTailwindViteMotionVercel
View code413161

Self-Healing Chatbot

In production

Self-healing chatbot with agentic observability, agentic RAG, 6-layer defense, 71 evals, voice mode, and a closed-loop that generates tests from real failures. <$0.005 per conversation.

Claude APILangfuseSupabase pgvectorOpenAI EmbeddingsVercel Edge

Claude Eye

Open Source

CLI that analyzes web animation videos frame-by-frame using Claude Vision. Detects CSS transition desyncs and generates reports with exact timestamps.

Node.jsTypeScriptClaude VisionFFmpeg

Claudeable

Open Source

Claude Code meta-project for professional web development. Custom skills, templates and pre-configured MCPs to build Lovable-quality websites.

Claude CodeReactTailwindshadcn/uiMCP

Claude Pulse

Open Source

SwiftBar plugin for real-time Claude Code usage monitoring on macOS. Consumption metrics, rate limit predictions, and context-aware tips.

BashSwiftBarAnthropic APIjq

Content Digest

Maven CapstoneBuilding

Python + FastAPI service for LLM-powered content ingestion and digest generation. Winning prototype, now in production with enterprise best practices.

PythonFastAPIOpenAI APILLMOps

ProjectOS Predict

Maven Capstone

Risk prediction dashboard for project portfolios. ML model trained on synthetic data flags delays before they happen. Second capstone from Maven AI PM bootcamp (Marily Nika).

scikit-learnFastAPIReactTypeScript

Claude Code Power User

High-Agency · AI-Fluency

My daily workflow is a multi-agent orchestration lab. The problems I solve (context management, inter-agent communication, memory persistence) are the same ones enterprise customers face.

  • Multi-agent orchestration: 5+ specialized agents running in parallel via tmux, each with its own context, skills, and hooks
  • Inter-agent IPC: async communication protocol between agents via JSON — they consult each other for cross-domain decisions
  • Memory persistence: pre-compact hook that crystallizes knowledge with Haiku before each compaction — memory that survives sessions
  • Reusable custom skills: automated deploy, tech translation, design systems, SEO, career consulting

Sharing

santifer
santifer | AI Builder

@santifer

Built this to find my own job. Open sourced it. 12K+ stars in two days.

Free: github.com/santifer/career-ops

Garry Tan
Garry TanY

@garrytan · CEO, Y Combinator

"Golden age of open source is here"

1125276.7K1.7MView on X
904793.8K529.3KView on X
2026 · Marily Nika AI PM Bootcamp

Teaching Fellow

Teaching AI product managers to build and ship — not just define.

2026 · AI Product Academy

n8n for Product Managers

Lightning session on Maven about practical automation for PMs with n8n. From repetitive tasks to AI-powered workflows — no code required.

2025 · Marily Nika AI PM Bootcamp

No-Code: The AI PM's Secret Weapon

1h community session on no-code (Zapier, Make, n8n, Airtable) as an AI PM superpower to validate and deliver faster.

2025 · Local entrepreneurs · Seville

Hiperautomatiza tu Pyme

Workshop on hyperautomation for SMEs: orchestration, RPA, AI and governance. Case study: Santifer iRepair.

AI Fluency Educator

Change Management · AI Fluency

Certified by Anthropic to teach teams and organizations how to adopt AI. The 4D framework: Delegation, Description, Discernment, Diligence — deciding what to delegate, communicating it well, evaluating outputs, and collaborating responsibly. Applied as Teaching Fellow at Maven's AI PM Bootcamp.

Skills

Languages

SpanishNative
EnglishProfessional proficiency

Soft Skills

CommunicationLeadershipSystems ThinkingE2E OwnershipBias for ActionInfluence w/o AuthorityDealing with Ambiguity

Tech Stack

AI / LLM
OpenAI (custom GPTs, tool use via OpenAPI)ElevenLabsClaude
Automation
Airtable (Builder / Admin)n8nMakeZapier
Integrations
AircallWATI (WhatsApp)YouCanBookMeDataForSEO
Dev
PythonFastAPISQLNode.js / JavaScriptAstroGraphQLGit
Infra
Vercel
LLMOps
ObservabilityEvalsLangfuse

Let's talk

Looking for a remote role (EU / USA) where I can own product delivery, unblock teams through automation, and ship results you can measure.

© 2026 Santiago Fernández de Valderrama|Privacy