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Keko-Figueroa.Dev
keko@keko-figueroa.dev
Back-end, Data & AI engineer building reliable systems—especially where money moves.
Python · SQL · Linux • APIs, pipelines, and AI agents that ship.
Featured Projects
This repo and live site: Flask/Jinja SSR, hardened contact pipeline, and a retro-style in-page terminal with themes and a lazy-loaded snake game—all without a CMS or database.
- SSR: Flask + Jinja, in-memory PROJECTS/POSTS, Gunicorn on Render + Cloudflare
- Contact: Postmark HTTP API, Turnstile, Flask-Limiter (IP), honeypot field
- Terminal: lazy-loaded overlay, virtual cd/ls/open, 4 themes, canvas snake (B1)
A production-depth sprint planner for small teams with deliberate design, clear permissions, and real multi-user workflows.
- React + TypeScript (CRA)
- Supabase Auth + Postgres + RLS (permissions enforced at data layer)
- Domain model: Workspace → Project → Sprint → Task
Private repo
Sandbox-first e-sports betting MVP validating wallet + betting + settlement while keeping payments architecture production-ready.
- Sandbox-first tokens (not real money, not crypto, not withdrawable cash)
- Nuvei included as orchestrator from day one in test mode
- Monorepo with frontend/, django-backend/, docs/, infra/
A documentation-first payments integration + troubleshooting case study focused on orchestrator mishaps and practical RCA.
- Core flow request shapes (user → auth → order → purchase v1/v2 → refund)
- Failure map: sandbox inconsistencies, schema mismatches, PSP/issuer declines
- Data-first RCA with SQL analysis patterns
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