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Valentina Ramírez · Colombia · COT (UTC-5) Limited availability · I reply within 24h

I help entrepreneurs save time and sell more with software and digital marketing, and I show how I build it in public.

I build what your business needs and make sure people find it.

Profile photo of Valentina Ramírez
Fig. 01: Founder of Lúmina W

I'm Valentina Ramírez, a Colombian software developer and content creator. My two strengths are software and digital marketing: I build landing pages, websites, chatbots and custom apps for businesses that want to stop doing everything by hand and sell more on social media.

I deliver real applications: multi-user, complex business logic, my own APIs, and frontends people actually use. Security by design, so the code doesn't break, with AI integrated where it counts.

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4 apps
in production
Lúmina W
founder
24h
response time
01 Projects

From challenge to product

Real systems in production: complex business logic, integrated AI, and security by design.

Featured
01 Live

TerraCore | Smart Farming

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Problem
Colombian farms track animals, crops, and accounts across notebooks, spreadsheets, and WhatsApp, and the systems that exist are too complex.
Solution
One platform to manage animals, crops, production, health, and finances, which also works without a signal.
Result
In validation with real clients in Colombia. Working product in production.
Stack

Django · DRF · PostgreSQL · React · TypeScript · Dexie · Astro

TerraCore dashboard: real-time metrics, production charts, and livestock distribution
02 Live

OKroot | Eat Healthy, Live Free

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Problem
Eating with celiac disease, diabetes, or lactose intolerance means reading every label and cross-checking several restrictions by hand.
Solution
The user photographs the label and gets a verdict in seconds, with the reason, based on their profile.
Result
In validation with real clients. App core in production, in early access, with the waitlist open.
Stack

Django · DRF · PostgreSQL · React · TypeScript · PWA · Claude API · Astro

OKroot: PWA with AI food-label scanner and dietary restriction profile
03 Live AI · Security

NullBreach | AI-Powered AppSec Chat

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Problem
A security finding is of little use if it does not say how serious it is and how to fix it.
Solution
You paste a code snippet and get an analysis with severity, impact, and remediation, or ask in a security chat.
Result
In production and open source under the MIT license.
Stack

Next.js · NextAuth · Prisma · PostgreSQL · React · TypeScript · OpenAI API · Astro

NullBreach: OWASP-aligned AI code analysis and security chat
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02 What I work with

Go-to stack

01 Featured

Backend

The backbone of every product.

  • Python
  • Django
  • Django REST Framework
  • PostgreSQL
  • JWT
  • Software architecture
  • PWAs
  • Offline-first
  • REST APIs
  • Multitenancy
  • Relational modeling
02

Frontend

Interfaces that complete the product.

  • Next.js
  • React
  • TypeScript
  • Astro
  • Tailwind CSS
  • JavaScript
03

Design & UX

Products that look good and anyone can use.

  • UX/UI
  • Figma
  • Accessibility (a11y)
  • Technical SEO
  • Web Performance
04 Featured

AI Integrations

AI as a real co-pilot, not a shortcut.

  • OpenAI
  • OpenClaw
  • Claude API
  • LLM Workflows
  • Prompt Engineering
  • n8n
05 Featured

Marketing & Content

Content and digital presence that bring in customers.

  • Digital marketing
  • Content creation
  • TikTok
  • Instagram
  • CapCut
  • Canva
  • ElevenLabs
  • Higgsfield
06

Security

Security by design in every line of code.

  • OWASP
  • MITRE ATT&CK
  • PTES
  • Linux
  • AppSec
View technical criteria
03 Beyond the code

About me

"A good product starts by understanding who will use it and is done when it reaches who will buy it."

I'm a self-taught software developer by conviction, with two strengths: software and digital marketing. I work with Django and React, with AI and security by design. I founded Lúmina W to build my own products. I also create content and know how to sell on social media, so the software I build is meant to bring in clients, not just to work. I study English Language at Universidad de San Buenaventura, learning in parallel because I don't know how to do it any other way.

Outside of code, you'll find me in photography, behind the drums, and listening to a playlist that doesn't respect genres.

Read Blog W Read about me
One click away

Less work by hand, more customers who find you.

I build landing pages, websites, automations, chatbots and custom apps, plus the content that gets you found. Security by design and a fixed price.

MVP in 6 to 10 weeks. Limited availability, I reply within 24 hours.

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