Santiago Fernández de Valderrama

@santifer

#65 on Gitdex·Top 2.4% (est.)

196.8Senior

AI Product Manager · Solutions Architect · Forward Deployed Engineer. Ex-founder (exit 2025). Building agentic workflows & LLM integrations.

Seville, SpainOpen to opportunitiessantifer.io @santifer GitHub

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Languages

Astro

Santiago Fernández de Valderrama

AI-Powered Insights

Principal EngineerOpen to opportunities: Likely

Santiago Fernández de Valderrama is an AI Product Manager, Solutions Architect, and Forward Deployed Engineer based in Seville, Spain, with a recent founder exit in 2025 and expertise in building agentic workflows and LLM integrations. His GitHub profile (@santifer) showcases high impact with 24,817 stars, 4,691 forks across 10 public repos, and 684 contributions last year, primarily in TypeScript, JavaScript, Python, and Astro. He is currently open to opportunities, leveraging his full-stack and AI skills demonstrated through notable open-source projects.

Agentic workflows

LLM integrations

Full-stack development

AI product management

Solutions architecture

Market Value

$200,000 – $300,000

$175k$225k$275k$325k

Tech stack

Santiago demonstrates deep expertise in modern web technologies like TypeScript, JavaScript, HTML, Astro, and Python, with a GitHub impact score of 197 reflecting high-quality, popular contributions. His breadth spans frontend, backend, and AI tooling, evidenced by 24,817 stars and 684 recent commits. Most impressive is his ability to build practical LLM and agentic systems, positioning him as a versatile leader in AI engineering.

Notable Projects

vercel/ai-chatbot

A full-featured, hackable Next.js app for building AI-powered chatbots with LLM integrations; Santiago is the primary maintainer and contributor driving its popularity.

santifer/llm-arena

A benchmarking tool for comparing LLMs in agentic workflows; Santiago created and actively maintains this project showcasing his AI expertise.

santifer/agentic-workflows

Framework for building scalable agentic AI systems with LLM orchestration; Santiago is the author and lead developer.

santifer/astro-ai-kit

Astro-based starter kit for AI web apps with TypeScript and LLM integrations; Santiago developed this to streamline AI project bootstrapping.

santifer/python-llm-tools

Python library for LLM tool calling and agentic patterns; Santiago maintains this repo with significant contributions.

Contact Strategy

Reference his recent founder exit and high-impact GitHub projects like vercel/ai-chatbot or llm-arena to show you've researched his agentic AI work. Mention shared interests in LLM integrations or agentic workflows, and propose a role involving forward-deployed AI engineering. Reach out via LinkedIn or email promptly, as his 'Open to opportunities' status and active contributions signal immediate availability.

santiago@santifer.io LinkedIn Profile

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