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Sebastián Aparicio
es

Software Engineer & FounderBucaramanga, Colombia

Sebastián Aparicio

I build and operate multi-tenant SaaS platforms.

Not practice projects: more than 21 businesses in Colombia invoice, track inventory and run payroll every day on systems I designed, deployed and keep in production.

Read the case studyDownload CV (PDF)
Portrait of Sebastián Aparicio, software engineer

Open to remote roles

By the numbers

+3
years building and operating software in production
+21
businesses running daily operations on systems I built
6
months from custom software to multi-tenant SaaS in production
3/4
of the SaaS products I operate are live in production

Experience

Two tracks in parallel: my own product company, and software consulting for a firm in Mexico.

  1. December 2025 – Present

    Bucaramanga, Colombia

    Founder & Lead DeveloperAutomatIQ

    • My own SaaS software company serving small and medium businesses. Responsible for product, architecture, development, deployment, support and customer relationships.
    • Scaled Gran Mayorista —a venture with partners, a separate company from AutomatIQ— from a single-tenant system to multi-tenant SaaS; it now runs operations for more than 10 wholesale businesses across sales, inventory, online storefront, employees and payroll.
    • Shipped AutomatIQ POS: a cloud point-of-sale platform with web catalog, table management, offline mode with deferred sync, real-time reporting, per-business data isolation and role-based access control.
    • Building a DIAN electronic invoicing portal on top of the Factus API: a single piece of infrastructure covering the electronic documents a company needs, with document packages, clients and allocation administered separately for AutomatIQ and for Gran Mayorista.

  2. May 2025 – Present

    Mexico City (remote)

    Frontend Developer — Next.js & TypeScriptVectux Analytics

    AI and advanced analytics consultancy serving enterprise clients across Mexico, Chile, Guatemala and El Salvador. Engaged under a professional services contract.

    • Build user interfaces with React, Next.js and TypeScript, applying server-side rendering, incremental static regeneration, code splitting and Core Web Vitals optimization.
    • Integrate REST and GraphQL APIs, manage global state and implement user authentication with JWT and OAuth2.
    • Scope extended beyond frontend: delivery of complete MVPs including backend, and setup of Google Cloud Platform infrastructure.
    • Unit and integration tests with Jest and React Testing Library; code reviews, technical documentation and agile ceremonies under Scrum.
    • Enterprise projects for clients across the region; client names and details are covered by a confidentiality agreement.

  3. July 2023 – March 2025

    Remote

    Freelance & contract developmentIndependent projects

    • Delivered web and mobile applications end to end for clients in Colombia and abroad, covering backend, frontend, deployment and support.
    • Detailed work in the projects section below.

Products

AutomatIQ is my company, building vertical SaaS for Colombian small and medium businesses; Gran Mayorista is a separate venture, with partners. Every product is multi-tenant: a single deployment serves all of its businesses, and one fix reaches all of them at once. Each status below is stated exactly as it stands today.

Gran Mayorista

A separate company from AutomatIQ, with two partners. I run the platform; they run commercial expansion.

In production

My largest deployment

Gran Mayorista

+10 businesses · since December 2025

A venture with partners, a separate company from AutomatIQ. Management system for wholesale distributors: it started in December 2025 as custom software for a single business, and in June 2026 I rebuilt it as multi-tenant SaaS.

  • Sales and invoicing
  • Inventory
  • Online storefront
  • Employee management
  • Payroll
Read the full case study Visit site
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Gran Mayorista landing page: headline “You know what you have, what you sold and who owes you”, with an “In production today” badge.
Public landing page
Gran Mayorista dashboard showing monthly sales, transactions, stock alerts, a seven-day trend chart and the active plan.
Inside the system

AutomatIQ

My company. Product, architecture, development, deployment and support.

AutomatIQ logoIn production

AutomatIQ POS

7 businesses · since May 2026

Cloud point-of-sale for retail and food businesses. The customer base is deliberately small: I use it to validate every feature in real operation before opening the product up.

  • Public web catalog per business
  • Table management
  • Offline mode with deferred sync
  • Real-time reporting
  • Per-business data isolation and role-based access control
Visit site
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AutomatIQ POS landing page: headline “Charge faster, sell more and control your whole business”, with demo buttons and three feature cards.
Public landing page
AutomatIQ POS dashboard on the settings screen, showing payment methods — cash, card and bank transfer — and their account details.
Inside the system
AutomatIQ Repair logoPilot

AutomatIQ Repair

Going live August 2026

Inventory and sales for technology retailers, with a portal where the end customer tracks the status of their repair. Going live with a pilot business.

  • Inventory and sales
  • Repair orders
  • Customer-facing tracking portal
View screenshots (2)Hide screenshots
AutomatIQ Repair landing page: headline “Your workshop, organised and professional” next to a mockup of the device types the workshop takes in.
Public landing page
AutomatIQ Repair dashboard with a consolidated view of two branches: monthly revenue, devices in the workshop, appointments today and critical stock.
Inside the system
AutomatIQ Mechss logoIn production

AutomatIQ Mechss

4 businesses · since June 2026

The Repair equivalent for mechanics and automotive workshops. Front desk, mechanics and back office work off the same information, and the customer checks their vehicle status from their phone.

  • Service orders
  • Parts inventory
  • WhatsApp status notifications
Visit site
View screenshots (2)Hide screenshots
Mechss landing page on a dark background: headline “Your workshop, on a single platform”, with entry points for advisors and for customers.
Public landing page
Mechss dashboard in dark mode, showing workshop onboarding at 83% and the monthly summary for two branches.
Inside the system

Earlier work

Freelance and contract engagements before moving into my own products.

Tesla Lift logo

Tesla Lift

2025

Mobile application for elevator installation, maintenance and support service management. Published on the App Store and Play Store.

  • React Native
  • Expo
  • Next.js
  • Supabase
  • Push notifications
LaLista WBC logo

LaLista WBC

2024–2025

Full web platform: custom backend, media management, real-time chat, domain, hosting and deployment.

  • Node.js
  • Express
  • MongoDB
  • Next.js
  • React
  • Cloudinary
  • Vercel
Card Software Traceability logo

CS Tracer — CardSoftware

2025

Frontend development for the CS Tracer product under a one-month contract, embedded in the client team.

  • Next.js
  • React
  • TypeScript
  • 2024

    Trascender Global

    Interface development and optimization, refactoring for performance and maintainability, sprint management in Azure DevOps under Scrum.

    React · Next.js · Tailwind CSS · Azure DevOps

  • 2024

    Software development consulting

    Point-in-time technical guidance for teams and founders.

  • 2023–2024

    Raffle management platform

    Full platform with the Wompi payment gateway and custom authentication.

    Node.js · Express · MongoDB · Vue 3 · Quasar · Wompi · JWT

  • 2023

    Transport company system

    The first management system I built end to end.

    Node.js · MySQL

References

Working with Sebastián on our Tesla Lift application was an outstanding experience. His grasp of our needs and his ability to implement innovative solutions turned our idea into a robust, functional application.

Tesla Lift logoMiguel GaiborCEO, Tesla Lift

Sebastián integrated into our team quickly and delivered exceptional work on the CS Tracer project. Despite a one-month timeline, his command of Next.js and React moved our front-end development forward significantly.

CardSoftware logoJonathan HernándezCEO, CardSoftware

Sebastián built LaListaWBC.com exactly as we needed it. His meticulous approach and his ability to implement complex features such as real-time chat exceeded my expectations.

LaLista WBC logoDiego BallesterosOwner, LaLista WBC

Sebastián proved to be an exceptional developer. His ability to solve complex problems and his attention to detail made our projects a success. He always met deadlines.

Trascender Global logoAndrés MartilianoCTO, Trascender Global

AI in my workflow

AI is part of how I build, not a line on a résumé. It is also one of the reasons four products in production do not take four times the work.

How I use it
Writing and refactoring code, weighing architecture options before committing to one, reviewing my own changes and keeping documentation current.
What I never delegate
Judgement. I understand and review everything that reaches production: real businesses depend on these systems and I am the one accountable for them.
At work
At Vectux Analytics — an AI and advanced analytics consultancy — I build the interfaces and deliver complete MVPs for their enterprise clients.

Technical stack

Frontend
ReactNext.jsTypeScriptVue 3QuasarTailwind CSS
Mobile
React NativeExpo
Backend
Node.jsExpressAPIs RESTGraphQLJWTOAuth2
Data
MySQLMongoDBSupabase
Cloud & infrastructure
Google Cloud PlatformVercelArquitectura multi-tenantCI/CD
Integrations
Facturación electrónica DIAN (Factus)WompiWhatsAppCloudinary
Practices
GitJestReact Testing LibraryCode reviewScrumAzure DevOpsJira

Education

  • Expected graduation: 2027Software Engineering degree (in progress)Corporación Unificada Nacional de Educación Superior (CUN) — Colombian university · Online
  • 2024Technologist Degree (Tecnólogo) in Software Analysis and DevelopmentSENA — Colombia's national vocational training institute · San Gil, Colombia
  • 2021High school diploma, technical emphasis in ElectronicsColegio San José de Guanentá · San Gil, Colombia

Certifications

Platzi — Full Stack Development track, with certifications in React, Vue, React Native and Scrum.

Languages

  • Spanish — native
  • English — basic: I read technical documentation and work in writing; conversational level actively in progress

Contact

Open to remote software engineering roles and to conversations about AutomatIQ.

sebastianmunoz603@gmail.com
Phone
+57 301 591 4917
LinkedIn
/in/sebastian-aparicio00
Location
Bucaramanga, Santander, Colombia
CV as PDF
Download CV (PDF)