Freelance AI engineer · Founder of Onezix

AI and automation adapted to how your company works.

I’m David Tovar, an AI engineer with more than 14 years of experience. I sit down with you, learn how your company operates and design the artificial intelligence systems it needs: autonomous agents, process automation and data analysis, integrated into your systems. And I stay with you to monitor and evolve them.

  • 14+years of experience
  • 25projects on Malt
  • 5.0 ★from 8 reviews
David Tovar, AI engineer and founder of Onezix
Supermalter on MaltFreelance AI engineer and founder of Onezix
The challenge

AI can already take on much of your company’s repetitive work. What matters is implementing it properly.

01

Generic AI that doesn’t know your business

Off-the-shelf AI tools don’t know your processes or your data. Without adapting them to the way you work, they remain trials with no real impact.

02

Standard software that doesn’t fit

Generic solutions handle standard processes; what sets your company apart still depends on manual work.

03

Talent tied up in operational tasks

Your team spends hours on tasks AI can now take on, instead of focusing on customers, sales and decisions.

What I implement

Tailored solutions for every area of your business.

Some of the systems I have implemented in real companies.

Customer service

Conversational and voice agents that resolve queries at any time and hand over to your team the cases that need personal attention.

Real caseMortgage brokerage and holiday accommodation

Sales

Automatic opportunity qualification, intelligent follow-up and AI-managed scheduling.

Real caseMortgage brokerage

Administration

Intelligent document processing: extraction, validation and case-file control with AI.

Real caseMortgage brokerage

Operations

Automated tender analysis, bid preparation and intelligent supplier management.

Real casePrinting and promotional products

Phone service

Voice agents that run surveys, collect information and structure it for analysis.

Real caseHealthcare

Training

Assistants that answer each student from the course content, with references to the original material.

Real caseHealth sciences training

Services in detail

How I work

I join your company as part of your team.

  1. Initial meeting

    I review with you the processes that take up the most time and where AI can add the most value. No commitment.

  2. Implementation

    In the first weeks I learn your operations, we prioritise the first process and I get it running.

  3. Continuous improvement

    Every month I work on the priorities you set, monitor the systems in place and report on the results.

Engagement

Two ways to work with me.

Recommended

Monthly commitment

I work with you on an ongoing basis, with a fixed commitment each month: maintaining what already works and improving it according to your priorities.

  • From maintenance to several days a week
  • Priorities you set
  • Monthly progress report

Defined projects

For a well-defined need, such as an integration, an assistant or an application. We agree the scope and I get it running.

  • Agreed scope and deliverables
  • Complete documentation
  • Optional ongoing maintenance

Each proposal is tailored after the first meeting.

Projects

Projects I have worked on.

For confidentiality, I don’t disclose client names.

Printing and promotional products

Public tenders and supplier management

A tailored platform that analyses tender documents, prepares the paperwork, recommends suppliers based on their history and manages communication with them. Used daily, it is gradually replacing their old intranet.

Mortgage brokerage

AI-powered service, acquisition and documentation

An AI agent that handles new leads and books the meeting, with a document portal reviewed daily by AI and full integration with their sales platform.

Training

AI for a centre with over a thousand students

Server migration and security, plus AI built into the courses, answering from recorded classes and each subject’s materials.

Technology

What I work with.

I choose the technology for each project. These are the tools I use most often.

Artificial intelligence

  • OpenAI
  • LangChain
  • LangGraph
  • ElevenLabs
  • RAG
  • AI agents

Automation and orchestration

  • n8n
  • Make
  • LangGraph
  • Systems integration
  • Asynchronous processing

Development

  • Python
  • FastAPI
  • Node.js
  • NestJS
  • TypeScript
  • React
  • Next.js
  • Angular

Data and cloud

  • PostgreSQL
  • MongoDB
  • Redis
  • AWS
  • Azure
  • Docker
  • Kubernetes
  • Terraform
Background

More than 14 years building software for businesses.

I hold a degree in Software Engineering from the University of Granada. I have worked on projects for Inetum, Getronics and the Prado Museum, and today I implement artificial intelligence in companies across different sectors.

My work covers everything from defining the need and the architecture to going live and ongoing maintenance.

Onezix

I also build my own products.

I’m the founder of Onezix, the studio through which I build and grow our own software products for people and businesses. Client projects, including large ones, I lead myself.

Discover Onezix

I also publish practical guides on AI and automation at dvtovar.com.

Read the guides

Frequently asked questions

Who is David Tovar?

David Tovar (David Pérez Tovar) is a freelance AI engineer based in Spain and the founder of Onezix. He sits down with each company, understands how it works and adapts artificial intelligence and automation to its processes, integrated into its systems. He has more than 14 years of software development experience.

What if my project is large?

I still lead it. If it needs more capacity than I can give on my own, I bring in more people from my team, and I remain your point of contact and responsible for the architecture and quality.

What is Onezix?

It’s the company I founded. Through it I build our own software products, each with its own brand. Client projects are contracted with me, as David Tovar; the contract and invoice are issued by ONEZIX S.L.

How much does it cost?

It depends on the commitment or the scope of the project. We define it after a first meeting, once I understand your needs.

Can you work on a system we already have?

Yes. I first review the code, the architecture and how your team uses it, and then propose the changes.

Do you work remotely?

Yes. I work remotely with companies across Spain, with video meetings and a direct line of contact.

What happens once the system is running?

I take care of its maintenance and evolution: monitoring, incident resolution and improvements according to your priorities.

Contact

Let’s talk about how AI can help your company.

Book a meeting or leave your number and I’ll call you. In the first conversation we’ll identify which processes you can automate.

Would you rather I called you?

Shall I call you?

Leave your number and I’ll call you as soon as possible.