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Crisfon6-dev/README.md

Hey, I'm Cristhian Fonseca

Technical Lead & AI Builder

I ship FinTech platforms at scale and build AI automations you can steal.

Website LinkedIn X Newsletter


What I do

  • Build cloud-native FinTech platforms serving millions of users on AWS
  • Design and deploy AI automation pipelines with Claude API, MCP agents, and serverless infra
  • Publish a free automation template every week with architecture diagrams, cost breakdowns, and working code

Tech stack

Cloud & DevOps    AWS CDK, Lambda, EC2, RDS, S3, Cognito, ElastiCache, CloudWatch, CI/CD
AI & Automation   Claude API, MCP Protocol, LLM Orchestration, n8n, Agentic Workflows
Full Stack        Python, TypeScript, Java, Angular, React, Next.js, FastAPI, Spring Boot
Data              PostgreSQL, DynamoDB, Oracle, Redis, Query Optimization (2M+ records)

Numbers

4+ years building production software 2M+ records optimized at scale
10+ cloud architectures deployed Millions of users served in FinTech

Currently building

  • crisfon6.com — Personal site and automation hub (Next.js + Vercel)
  • Automation of the Week — Free weekly AI templates with full deployment guides
  • The Builder's Blueprint — Newsletter for engineers who want to ship AI faster

Featured automation templates

Template Infra Cost Time Saved
AI Document Processor (Claude + Lambda + S3) $12/mo ~15 hrs/week
Slack to Notion Meeting Summarizer $5/mo ~8 hrs/week
Automated Lead Scoring Pipeline $18/mo ~10 hrs/week
MCP Agent: Code Review Assistant $8/mo ~12 hrs/week

Every template includes architecture diagrams, deployment guides, and working code. Subscribe at crisfon6.beehiiv.com to get them delivered weekly.


I ship FinTech at scale. I build AI automations you can steal. I share everything I learn.

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