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Steven Vallejo Ortiz

Software engineer · Philosopher

All my work, each piece on a site of its own.

This graph maps my work: 186 nodes, 283 real relations · See it as a catalog

Judgment and practice

Think before you build.

I start by clarifying the problem and its assumptions. I connect philosophy, logic and engineering to build systems that can be put to the test. Explore the different forms that work takes here.

  • Ask precise questions
  • Connect ideas
  • Put them to the test
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Four fronts · 28 works

Catalog · all my work

Each front opens with its catalog, a site that gathers many projects, and goes on with the ones that have a site of their own. Everything links to its current version.

§ 01

Engineering

12+ years of backend, agentic AI, devtools and business software.

Catalog · 21 projects

Daímon

Atlas of intelligence

It gathers my AI projects (assistants, agent infrastructure, local inference and tools), each with its own page, diagram and repository. It does not run them: it documents and links them, and says plainly which are demos, which are references and which are private.

Enter the catalog Daímon ↗
  • Agent infrastructure 9
  • Assistants & voice 5
  • Tools & creation 5
  • Inference & experiments 2

Code Daímon

12 projects with a site of their own

  • Orchestrating director of the agent fleet

    Cauce V3

    Also in Humanizar

    Cauce V3

    My flagship engineering project: it directs the fleet of AI agents that runs this very portfolio and the whole Humanizar ecosystem. Deployments, monitoring, delivery contracts between agents and a multi-tenant CRM, in production. The right hand that keeps the fleet alive.

    Flagship engineering project

    Visit Cauce V3 ↗

  • An operational method and toolkit for complex problems

    SpecOrganon

    SpecOrganon

    Connects philosophy, science and engineering across nine phases: from the problem and evidence to requirements, construction and validation. Its local MVP brings together a CLI, an MCP server, a versioned case record, review gates and resumption. The site introduces the method and a guide to applying it to your own projects.

    Methodology · SDD · MCP

    Visit SpecOrganon ↗Code SpecOrganon

  • Natural language → formal logic

    Órganon

    Órganon

    The technical jewel, live: write in Spanish → autologic (rule-based NLP formalizer) translates it → ST executes it (a logic language with a home-grown CDCL SAT solver, 6,333 tests). No AI, no database: it all runs in-process, serverless on Vercel.

    Technical jewel

    Visit Órganon ↗Code Órganon

  • Brand image generator

    Eikón

    Eikón

    Deterministic brand-identity generator: procedural isotypes, palettes, icon sets and social kits, with WCAG contrast validation. Multi-tenant webapp + API + MCP server, in production. The engine that builds the brands of this very portfolio.

    Brand generator

    Visit Eikón ↗

  • Custom SMB software

    Érgon

    Also in Humanizar

    Érgon

    Commercial landing for a suite of three ready-to-customize SMB starter kits: CRM (React + Vite + Express), Hours Tracker (Next.js 15 + Turso) and VPN Manager (Flask + Docker). Model: "80% is already built, you pay for the 20% custom". Fixed-scope sale or micro-SaaS.

    Fixed-scope 40/30/30

    Visit Érgon ↗

  • Time tracking + invoices

    Chrónos

    Also in Humanizar

    Chrónos

    SaaS app for freelance time tracking and Colombia-localized invoices: single or bulk entry, income calculation with configurable rate, PDF export, weekday filters and average-based autofill. Next.js 15 + SQLite.

    SaaS · ~29k COP/mo

    Visit Chrónos ↗

  • SMB CRM

    Xenía

    Also in Humanizar

    Xenía

    CRM for Colombian SMBs with 19 entities: kanban pipeline, contacts, companies, deals, activities, quotes and invoices. Localized for tax ID, COP, departments and company types. React 19 + Vite + Express + Neon Postgres, deployed on Vercel.

    SMB CRM

    Visit Xenía ↗

  • Inventory

    Apothḗke

    Also in Humanizar

    Apothḗke

    Warehouse and inventory management system: stock, orders, movements, roles (admin/manager/worker), notifications and analytics. React 19 + Vite + Neon Postgres on Vercel serverless functions, with seed demo data to start instantly.

    Fixed-scope SMB sale

    Visit Apothḗke ↗

  • Legal scraping

    Nómos

    Nómos

    Legislative document indexer with full-text search: adapts scraping to Colombia’s House and Senate and the DR Chamber of Deputies via a swappable Source Adapter pattern that never touches the pipeline. FastAPI + Neon Postgres + Mangum on Vercel serverless.

    Turnkey or SaaS

    Visit Nómos ↗

  • Platform for Discord communities

    Koinonía

    Also in Humanizar

    Koinonía

    Multi-tenant platform for Discord communities: web portal (events, library, ranking, store and roles), a NestJS 10 API over Neon Postgres and a discord.js bot with XP and voice rewards. A single codebase and database for many communities isolated by tenantId.

    Multi-tenant

    Visit Koinonía ↗Code Koinonía

  • OSS dev tools

    Téchne

    Téchne

    Docs and showcase of OSS devtools for Linux: Ultimate Terminal (browser-based distributed machine control), Mission Center Web (Electron-free resource monitor), clawbar (voice + Hyprland status bar with Whisper/Kokoro) and Hyprland Multi-Monitor (independent per-monitor workspaces). Astro Starlight, fully static.

    8 OSS tools

    Visit Téchne ↗Code Téchne

  • Scientific editorial CMS

    Áporía

    Áporía

    Full-stack editorial platform (Next.js 16 + Neon/Postgres + Firebase Auth): publishes papers, archives research and runs collective experiments with real-time visualization, with a /studio panel for editorial CRUD behind real auth. The name evokes paradox, but the product is scientific publishing infrastructure.

    Coming soon

§ 02

Philosophy

The judgment that shapes everything else.

Catalog · 15 works

Paideía

Digital humanities

Not a single app: it is the layer that organizes the humanities work. It gathers the Classical Greek, Neurophilosophy and Philosophy of the City courses, with their browsable documents and a search, and links the interactive talks, the doctoral thesis and the essays, each published on a site of its own.

Enter the catalog Paideía ↗
  • Courses 3
  • Talks 8
  • Doctoral thesis 1
  • Essays 3

Code Paideía

4 projects with a site of their own

  • Academic platform · Elenxos

    Ágora

    Also in Humanizar

    Ágora

    Live academic platform (Elenxos): turns chaos into logical structures. It bundles ST (a logic language with a home-grown CDCL SAT solver, 6,333 tests), auto.logic (rule-based NLP → formal logic, 11 profiles) and real-time collaboration for shared reasoning. NestJS + Next.js on Docker.

    Academic platform

    Visit Ágora ↗

  • Debate moderator

    Agón

    Agón

    Offline PWA to moderate academic and competitive debates: manages turns, timer, scoring and fallacy detection, and bundles a dynamics simulator with a cellular automaton (2D canvas) inherited from the complex-systems research.

    Live · Cafetería del Caos

    Visit Agón ↗Code Agón

  • Independent student governance

    Koinonía UdeA

    Koinonía UdeA

    Open-source collective governance platform for students of the UdeA Institute of Philosophy. It organizes issues, deliberations, verifiable decisions and initiatives with follow-through. This is an independent project and does not officially represent the university.

    Open source

    Visit Koinonía UdeA ↗Code Koinonía UdeA

  • University governance · IEP report

    Gobierno Universitario UdeA

    Gobierno Universitario UdeA

    Visualization of the Universidad de Antioquia Institute of Political Studies 2015 report on university governance. It presents the actors, the University Superior Council structure and political tensions from 2010 to 2013. The research belongs to the IEP team.

    Research visualization

    Visit Gobierno Universitario UdeA ↗Code Gobierno Universitario UdeA

§ 03

Sciences

Complex systems, emergence, simulation.

4 projects with a site of their own

  • The Kósmos experiments, in 3D

    Umbral

    Umbral

    The same 23 repositories Kósmos gathers, turned into an atlas you walk through: mathematics, physics, automata and complex systems as 3D scenes, with 230 documented results and a link to each source. The scenes illustrate; they do not recompute the original results.

    Scientific exploration

    Visit Umbral ↗

  • Doctoral thesis · Philosophy of science

    Estructuras Preontológicas

    Also in Paideía and Kósmos

    Estructuras Preontológicas

    Doctoral thesis (Jacob Agudelo + Steven Vallejo, UdeA) in philosophy of science and complexity sciences: proposes "pre-ontological structures" as operative regularities prior to objecthood, anchored in a dynamic material substrate and validated with the EDI metric and multiscale compression over multi-domain evidence. Quantitative rigor and ontological grounding in a single program.

    Doctoral research

    Visit Estructuras Preontológicas ↗Code Estructuras Preontológicas

  • Interactive atlas of artificial intelligence

    Nóesis

    Nóesis

    Interactive AI atlas spanning logic, probability, neural networks, transformers, generative models, reinforcement learning and world models. Each family combines intuition, formulas, history and limitations with labs that compute in the browser.

    Live AI labs

    Visit Nóesis ↗

  • Learn complexity by coding

    Phúsis

    Phúsis

    Complexity science course platform with three active courses and 22 lessons. Learners code cellular automata, chaotic systems and agent-based models, with live previews, automated checks and philosophical reflection.

    Learning platform

    Visit Phúsis ↗

§ 04

Enterprise

Production business software, with real clients.

Catalog · 15 offerings

Humanizar

Business software and AI agents

It brings together Humanizar Systems’ public offerings: software for sales, distribution and operations, platforms for coordinating AI agents, and tailored engineering services. Each entry links to its product or service.

Enter the catalog Humanizar ↗
  • Products 12
  • Services 3

4 projects with a site of their own

  • Orders & last-mile delivery platform

    Graf

    Also in Humanizar

    Graf

    Commercial platform for order management and last-mile delivery logistics, in production with real clients. The highest-traction product in the portfolio.

    In production · live clients

    Visit Graf ↗

  • Ops platform for food distributors

    Deméter

    Also in Humanizar

    Deméter

    Operations platform for food distributors: from order to route with no manual entry — order intake, route building, dispatch, receivables and DIAN e-invoicing, multi-company. In production.

    In production · distribution

    Visit Deméter ↗

  • Modular business suite

    Prizma

    Also in Humanizar

    Prizma

    Modular corporate suite in production on Cloud Run: POS with DIAN e-invoicing (Talanton), interest-free credit (Pistis), WhatsApp marketing (Iris), conversational e-commerce (Hermes), last-mile logistics (Talaria) and CRM, orchestrated by an event hub (Nous). NestJS + Next.js, 8 deployed microservices.

    Business suite

    Visit Prizma ↗

  • Social network for Colombian businesses

    Gravitatoria

    Also in Humanizar

    Gravitatoria

    A social network where businesses publish what they offer and need, follow each other and connect on behalf of their business. Search products, services and businesses by municipality, explore their coverage on the map and connect needs with offers.

    Business network

    Visit Gravitatoria ↗

Contact

Let’s talk

A project, some consulting or a conversation about logic: write to me wherever suits you.

My story →