ROBOTICS / ROS 2
Robotics, in the real world
Robots that move on their own: lidar navigation, sensors, motors and the software that coordinates them. It is where code meets physics and every mistake shows.
FREELANCE SOFTWARE DEVELOPER · BARCELONA · REMOTE · SINCE 2016ARTUR PUIG / 2026
Apps. Websites. Automation.
For small businesses, professionals and new products that need software built by one accountable person. Freelance since 2016, I design, build and answer for the work myself. We can start with a free demo of the key part before you commit to anything.
Free consultation and basic demo.
We agree what the demo will show. No obligation to hire; the full build is quoted separately.
Free · 30 min · Google Meet · You talk directly with me
ARTUR PUIG / INTERACTIVE STUDY
Portrait & form.
In the particle portrait, move the pointer to push particles away; hold or touch to attract them. Drag shapes to rotate. Use arrow keys when the artwork is focused. Hold Space to gather particles at the center.
Appearance
Move to push particles · Hold to attractTouch and drag to attract particlesDrag to rotate · Arrow keys also workDrag to rotate
Next
Play with particles
Score
Wave
Lives
Invaders
Break the formation into particles.
← → move · Space to fireDrag the ship · Hold Fire
Ready when you are
Apps, websites and automation
What would you like to build or improve?
You don’t need a technical brief. A short description of your idea or the problem is enough to start.
Book a free consultation 01 / 02 / 03 /
I have an app idea
A booking app, a customer portal or a tool for your team. Tell me what people should be able to do.
I want to save time on tasks
Copying data, sorting documents or updating several systems. Tell me which task takes too much time.
I need a website
A new site, a page for a specific service or a redesign. Help visitors understand your business and contact you.
01 /WHAT I BUILD
Software development services, from websites to robotics
A new application, a clearer website or less manual work. I can start from an idea or improve the tools you already use.
You don’t need to know which technology to use. Tell me what you want to achieve.
01Websites
Business websites and landing pages that explain your offer and make it easy to contact you. I take care of design, development, loading speed and the technical foundations for search.
Custom Website Development, Freelance & Remote02Custom applications
Web applications and internal tools for bookings, customers, orders or invoicing. I adapt the software to your workflow and connect it to the tools you already use.
Custom App & MVP Development03Mobile apps
Apps for Android and iPhone, from an early concept to development. We define the essential features first, then choose the platforms and integrations the app needs.
Custom App & MVP Development04Business automation
Reduce repetitive work such as copying information between tools or processing documents. I connect your systems and add checks or human review where needed.
Business Process Automation05Connected devices & robotics
Software, electronics and sensors for connected devices, home automation and robots. We first check what can be tested remotely and what equipment the project needs.
iGrow: automatic control of growing conditions. Utility model application, 2018.OEPM · ES 1211990 UDocument (PDF)
Describe my idea06Search & AI visibility
Clear content, fast pages and technical SEO help search and AI systems understand your website. I work on these foundations; rankings and citations cannot be guaranteed.
Describe my ideaHave something else in mind? Describe it in a few lines.
Describe my idea01.5 /OFF THE SCREEN
There are cables too.
Part of what I know I learned with my hands, in projects of my own with no client behind them: robots navigating with lidar, sensors, boards like Arduino and ESP32. Out of that came iGrow, an automatic controller for growing conditions, and a way of working: understand how something works before building on top of it.
iGrow is the project that went furthest: automatic control of growing conditions, filed as a utility model application in 2018.OEPM recordDocument (PDF)
ESP32 / ARDUINO / IOT
Electronics that do things
Small boards that read sensors and connect devices to a network. I prototyped iGrow with them. If something physical has to measure, alert or act, I know where to start.
SECURITY / BUG BOUNTY
Take it apart to understand
Understanding how a program is built, finding its weak points and reporting them through bug bounty programmes. That mindset ends up in the software I build: accounts, data and integrations designed for what can go wrong.
AGENTS / RPA
Agents that get to work
Systems in which AI uses tools to complete several steps of a task, connected to company data and with human review where it matters. That is what I apply every day in automation work.
Does your project cross these lines?
Read the guideLET'S TALK
Let’s discuss your project.
A LITTLE HELP GETTING STARTED
A clearer idea. A better first meeting.
Tell me what you want to build or improve. I’ll help you put together a short brief for Artur.
A FREE FIRST CONVERSATION
Book a free consultation.
A 30-minute video call to discuss your idea or a problem you want to solve. If a basic demo would help, we can agree what it should show.
Free · 30 min · Google Meet
Book a free consultationLet’s talk about your project
Write to me here.
Prefer to write? Send a brief summary and I’ll reply by email.
Your message comes straight to me. No newsletter, no sales calls.
Connect on LinkedIn
Based in Barcelona · Working remotely
04 /How it gets made
From your idea to a clear next step
Start with a free consultation or a short message. Then we define the first step together.
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Talk through your idea
Book a free consultation or send a short message. Tell me what you want to build or the task you want to improve.
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Define a useful demo
For suitable projects, we agree a small, free demo so you can try the main idea. The scope is confirmed before I start.
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Review the proposal
If you want to continue, I outline the work, price and timing. You decide whether to commission the project.
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Build and hand over
I develop and test the agreed solution, connect the necessary tools and explain how to use it.
03 /A little context
You work directly with me.
I’m Artur, a freelance software developer. I work remotely in English, Spanish, Catalan and German, from the first conversation through development and delivery.
Current focus
Applied AI & enterprise automation
05 /Selected experience
Where the work has happened
Four roles, one throughline: research turned into systems that run.
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Jun 2016 — Present Freelance · Remote
IndependentFreelance Software Developer
Custom software, agentic systems, automation and projects that connect software with electronics. I work freelance and keep building personal projects out of curiosity, from robotics to security tools.
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Aug 2026 — Present Remote
GoAnswersDirector of Research & DevelopmentResearch and development in applied AI, and how the latest advances hold up inside enterprise environments.
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Mar 2023 — Present Remote
Wallner GroupDirector of Research & DevelopmentCombining AI and RPA to automate complex administrative work, building CRM/ERP systems, and exploring blockchain among other technologies.
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Jan 2021 — Mar 2023 Full-time · Remote
Grupo AdgestHead of IT DepartmentLed the IT function and applied RPA with UiPath to administrative processes.
Capabilities
- Enterprise AI & agent systems
- Automation & RPA (UiPath)
- Custom CRM/ERP and business systems
- Reverse engineering (OllyDbg)
- Security tooling & pentesting (Metasploit)
- Embedded & IoT (Arduino, Home Assistant)
- ROS2 robotics
- C# · Java · Python
- Systems architecture
- Blockchain
- ESP32 · ESP8266 · IoT
- Bug bounty
- SEO & GEO: search and AI visibility
What can I ask you to build?
Applications, business websites, mobile apps and automations. You can bring a new idea or ask me to improve something you already use.
Can you help people find my website?
I work on useful content, page structure, loading speed and technical SEO so search and AI systems can understand your site. Rankings and citations depend on the platform and competition.
Can we work remotely?
Yes. I’m based in Barcelona and work remotely in English, Spanish, Catalan and German. With teams in the United States or other time zones, we agree on the overlap needed for calls and reviews; the booking calendar shows availability in your local time.
How do we start?
Book a free 30-minute consultation or send a short description using the form. We’ll clarify the idea and a useful next step. You don’t need a technical specification.
What is free, and when do I pay?
The initial conversation is free. For suitable projects, I also offer a free basic demo with an agreed scope and no obligation to continue. Full development, larger prototypes and additional work are quoted separately.