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Arturo Jiménez
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A personal touch

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Original
Full-Stack & Blockchain Developer

Developing innovative
solutions for a digital world

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With over 18 years of experience leading technology development teams and creating web and blockchain applications. I transform ideas into digital realities with elegance and precision.

Selected project
01 / 15
AI Communication Platform
Web Apps

AI Communication Platform

Advanced communication and AI assistance platform for professionals with real-time conversation analysis.

18+Years of experience
50+Completed projects
40+Satisfied clients
Discover more
Get to know me

About me

Developer with extensive experience in creating comprehensive technological solutions, from web applications to blockchain implementations.

Full-Stack & Blockchain Developer

Specialized in the adoption, training, and development of the Blockchain ecosystem since 2013. I combine advanced technical knowledge with a strategic vision to create digital solutions that drive business growth.

I provide services ranging from virtual tours, self-managed websites, user management panels, cryptocurrency bots, blockchain contracts ERC20 - ERC721 (NFT), AI solutions, server management, and desktop software.

My approach is based on creating scalable, secure solutions with intuitive interfaces that enhance the end-user experience and optimize business processes.

Frontend

  • JavaScript
  • HTML5 & CSS3
  • Bootstrap & Tailwind
  • Responsive design
  • SEO and optimization

Backend

  • Python, Django, Flask
  • RESTful API
  • Nginx, Supervisord
  • Redis, Celery
  • Ubuntu, security scripts

Databases

  • PostgreSQL, MySQL
  • SQLite3
  • Advanced optimization
  • Data modeling
  • Backup and security

Blockchain

  • Solidity, Smart Contracts
  • ERC20 tokens, DeFi
  • ERC721/1155 (NFTs)
  • Ethereum, Polygon, BSC
  • Web3.js, Ethers.js
My journey

Professional experience

Throughout my career, I have collaborated with top-tier companies, leading innovative technological projects and development teams in the blockchain and web technologies fields.

2025 — Present

Freelance

Independent Developer

Development of advanced web solutions, implementation of blockchain contracts, trading bots, automated tools, desktop software and machine learning applications...

  • Full-stack development with Django/Python
  • Smart contracts implementation
  • Creation of bots and automated tools
  • Development with AI and machine learning
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Main responsibilities:

  • Development of progressive web applications (PWA) with Python, Django and JavaScript
  • Implementation of smart contracts in Solidity for DApps and NFTs
  • Creation of APIs and backend services with Django REST Framework and FastAPI
  • Technical consulting for startups and established companies
  • Integration of machine learning solutions with TensorFlow and PyTorch
  • Development of trading bots with automated strategies for cryptocurrency markets
  • Creation of automated tools for business process optimization
  • Desktop software development with user-friendly and intuitive interfaces
  • Implementation of AI solutions for text processing, images and predictive analysis
  • Linux server management with Nginx, Supervisord, Redis and security configurations
  • Development of customized POS systems for hospitality and retail
  • Implementation of stock and inventory management solutions for restaurants
  • Creation of financial management applications with multi-banking integration
  • Development of commercial assistance platforms with multimodal AI
  • Implementation of enterprise communication systems with WebRTC

Key achievements:

  • NFT platform with secondary market for digital artists
  • Inventory management system with demand forecasting using ML
  • Web application for crypto asset management with multi-exchange integration
  • Analytical dashboard for real-time marketing data visualization
  • Automated trading bot with customizable strategies and alerts API
  • Text and image recognition application with intelligent OCR for documents
  • Process automation system for companies using Python scripts
  • Desktop software with cloud synchronization for technical service management
  • Implementation of AI models for predictive analysis of business data
  • Stock management software for restaurants with consumption prediction and rotation
  • Complete POS system for hospitality with order, billing and accounting integration
  • Advanced cryptocurrency bot with technical analysis and multi-exchange integration
  • Unified financial management application for account monitoring across different banking entities
  • Confidential commercial assistance platform with AI incorporating real-time conversation analysis
2021 — 2024

Onets

Chief Technology Officer

Strategic and technical leadership of a team that grew from 12 junior developers to 30. Architecture and implementation of innovative legaltech solutions, with focus on security and scalability. Implementation of AI technologies for text, image and OCR processing at local level.

  • Technical team management
  • Legaltech application architecture
  • AI solutions implementation
  • Infrastructure management on own servers
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Main responsibilities:

  • Training and leadership of a team from 12 junior developers expanding to 30
  • Design and implementation of architecture for high-concurrency legaltech applications with Django
  • Infrastructure management on own servers, implementation of Nginx, Supervisord and Redis
  • Implementation of agile methodologies (Scrum and Kanban) to optimize development processes
  • Consulting and analysis with clients, managing projects from start to finish with focus on results
  • Development and implementation of AI solutions for legal text and document processing
  • Creation of advanced OCR systems for digitization of physical legal documents
  • Implementation of image processing technologies for authentication and verification
  • Development of security scripts and firewalls for data protection
  • Microservices architecture design for processing large volumes of documents
  • Development of secure payment gateways with integration of multiple providers (Stripe, PayPal, Redsys, BBVA)
  • Creation of accounting management applications with automatic generation of tax reports
  • Implementation of IT security tools for auditing and protection of sensitive data
  • Design of automation systems for administrative, legal and commercial processes
  • Analysis and optimization of existing software to improve performance and scalability
  • Development of proprietary software for data management with end-to-end encryption
  • Integration of secure communication systems for confidential information exchange
  • Architecture of backup and disaster recovery systems with automatic replication
  • Development of progressive web applications (PWA) for use in limited connectivity environments

Key achievements:

  • Winning of major tender with initial team of 12 junior developers
  • Development of legaltech platform that processed over 100,000 legal documents per month
  • Successful implementation of security systems on critical platforms with GDPR compliance
  • 40% reduction in development time through process optimization and automation
  • Establishment of effective communication protocols between technical teams and clients
  • Creation of OCR system with artificial intelligence that reduced processing time by 65%
  • Implementation of AI solutions for legal text analysis that improved accuracy by 45%
  • Development of automatic document classification system with 98% accuracy
  • Server infrastructure optimization that reduced operating costs by 30%
  • Payment gateway implementation with 0% incidents
  • Development of accounting management system that reduced tax return preparation time by 75%
  • Creation of IT security tool that detected and prevented over 500 intrusion attempts
  • Implementation of automation system that eliminated 12,000 hours of manual work annually
  • Optimization of key software that reduced response times by 85%
  • Integration of encrypted communication system
  • Development of PWA applications that enabled offline work in areas with intermittent connectivity
2017 — 2020

Cresio Platform

Chief Technology Officer

Comprehensive development of a revolutionary multi-exchange platform for cryptocurrency trading...

  • Multi-exchange platform architecture
  • Backend development with Django/Python
  • Implementation of regulated ICO with ERC-20 token
  • Smart contracts design for WalletHold and Airdrops
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Main responsibilities:

  • Sole developer
  • Design of complex Django/Python-based architecture for integration with multiple exchange APIs
  • Implementation of multi-exchange platform that unified trading across different cryptocurrency markets
  • Development of WalletHold system for rewards and Airdrops system with ERC-20 Smart Contracts
  • Creation of mining rig monitoring systems and real-time alerts
  • Implementation of proprietary algorithms for market analysis and trading signal generation
  • Development of CRES token under Ethereum ERC-20 standard for project funding
  • Participation in meetings with CNMV to ensure ICO regulatory compliance
  • Collaboration with Cysae law firm for legal structuring of the project and token issuance
  • Technical writing of whitepaper and documentation for investors and regulatory bodies

Key achievements:

  • Launch of the first ICO in Spain with explicit knowledge of CNMV after two official meetings
  • 78% reduction in order execution time through Django backend optimization
  • Successful integration with 4 cryptocurrency exchanges through public and private APIs
  • Implementation of scalable architecture that supported up to 5,000 concurrent users
  • Structuring of WalletHold rewards system and Airdrops that distributed tokens among the community
  • Creation of innovative trading signals system for platform users
  • Establishment of pioneering regulatory compliance framework for ICOs in Spain
2013 — 2017

Technical Support and Assistance

Technology and Networks Specialist

Provision of advanced technical services for individuals and businesses...

  • Advanced IT technical support
  • Wireless network deployment
  • Security systems implementation
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Main responsibilities:

  • Specialized IT technical service, on-site and through remote assistance
  • Installation and configuration of connectivity solutions with Ubiquiti (parabolic antennas and repeaters)
  • Implementation of IP video surveillance systems for businesses and companies
  • Configuration and management of enterprise networks using MikroTik for load balancing and redundancy
  • Development of Python scripts and automations for system monitoring and administration

Key achievements:

  • Deployment of wireless repeater network for connectivity in extensive hard-to-reach rural area
  • Implementation of integrated surveillance system with remote access for chain of 12 stores
  • Development of redundant connectivity system with high availability for critical services company
  • Creation of automated and encrypted remote backup system for business data protection
  • Implementation of infrastructure monitoring solutions with real-time alerts
2010 — 2013

Tupaginavirtual

Chief Executive Officer

Foundation and management of a pioneering company in tourism digitalization...

  • 360° virtual tour platform development
  • Strategic direction and project management
  • Specialized tourism multimedia production
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Main responsibilities:

  • Web platform development with 360° virtual tour technology using Krpano and XML programming
  • Creation of innovative 'virtual web' system with contextual information and adaptive design based on location
  • Complete multimedia production: panoramic photography, editing, programming and statistical analysis
  • Leadership of multidisciplinary team (photography, sales, development and marketing)
  • Commercial management and business development in tourism and real estate sector

Key achievements:

  • Development of pioneering interactive geospatial virtual navigation system for Puerto de la Cruz
  • Digitization of over 200 tourist establishments, hotels and real estate properties in Canary Islands
  • Implementation of accessible 360° visualization technology for small businesses
  • Creation of comprehensive virtual street map system with real-time tourist information
  • Recognition as innovative company in digital tourism sector by Tenerife Island Council
2009 — 2010

Intermote21

Chief Technology Officer

Development of innovative remote assistance service as a commercial product...

  • Remote assistance system architecture
  • Technical leadership and product definition
  • UI/UX design and user experience
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Main responsibilities:

  • Development of complete architecture for remote assistance system with time tracking and billing
  • Leadership of multidisciplinary team (designers, developers and marketing specialists)
  • Visual product design and promotional materials for distribution in large retail stores
  • Implementation of incident management system and technical support tracking
  • Web platform development with Joomla, PHP, MySQL and JavaScript for client management

Key achievements:

  • Creation of pioneering remote technical support system with prepaid system in Spain
  • Physical product format design for distribution in supermarkets and large retail stores
  • Development of complete visual identity and packaging for technology product
  • Implementation of access control and billing system based on prepaid credits
  • Creation of secure architecture for remote connections to client equipment
My work

Featured projects

A selection of my most relevant projects that demonstrate my skills and experience in different technological areas.

VirtuaLux
Web

VirtuaLux

Specialized portal for virtual tour services with work catalog and quote request system.

View project
Hotel Alhambra
Virtual Tours

Hotel Alhambra

360° virtual web with multiple features: interactive paintings with narration, automatic tour, integrated web information and video presentation.

View project
AI Trading Bot
Cryptocurrency

AI Trading Bot

Advanced trading bot with integrated backtesting system and artificial intelligence algorithms for predictive market analysis.

View project
Hotel Tigaiga
Virtual Tours

Hotel Tigaiga

Virtual tour of Hotel Tigaiga in Tenerife with over 30 interconnected panoramas and interactive information points.

View project
My services

What I can do for you

I offer a wide range of technological services to help businesses and individuals achieve their digital goals.

Web Solutions

Creation of static, dynamic, self-managed web portals...

Blockchain

Creation of custom smart contracts with Solidity...

Machine Learning

Development of Computer Vision, Machine Learning solutions...

Cryptocurrencies

Creation of custom applications, from multi-exchange platforms...

360° Virtual Tour

Creation of interactive 360° virtual tours...

Desktop Software

Development of desktop applications and script creation...

Business Management Systems

Development of customized solutions to optimize...

Automation and Bots

Creation of automated systems and bots for trading...

Legaltech Solutions

Specialized tools for the legal sector with AI...

Testimonials

What my colleagues and clients say

Some opinions from my colleagues and satisfied clients with my work and professional services.

The 360° virtual tour that Arturo developed for our hotel has significantly increased our online bookings. His professionalism, attention to detail and technical skills are impressive.
Ursula Talg
Ursula TalgDirector · Hotel Tigaiga
Arturo completely transformed our digital presence. His strategic approach and technical skills gave us exactly what we needed. A highly recommended professional who thoroughly understands business needs.
Jordi Fernandez
Jordi FernandezCEO · Hotel Alhambra
Arturo was more than a leader, he was a true mentor to me during my time at Onets. He taught me to approach problems in a structured way and, above all, to trust more in my abilities. Thanks to his guidance, I grew both professionally and personally, and his way of leading left a mark that I will always carry with me. I am very grateful for everything I learned from him and for the support he gave me in every challenge. Without a doubt, he is one of those people who make a difference in the professional life of those fortunate enough to work with him.
Álvaro Frías Romero
Álvaro Frías RomeroDEV · Onets
I was lucky to work with Arturo as my boss at a company. As a foreign programmer, I greatly appreciate his ability to adapt to any difficulty, including language issues. I especially highlight his ability to lead and carry out many projects quickly and with high quality. He is a reliable, professional person with a lot of experience. Working with him was a great opportunity.
Yelyzaveta Hryshchuk
Yelyzaveta HryshchukDEV · Onets
I was lucky to work under his leadership for a year and a half, during which time I learned a lot. He taught me from scratch how to use Django, I greatly improved my frontend skills, especially in Bootstrap, HTML and CSS, and I also learned to manage servers to deploy web pages. Additionally, thanks to his guidance, I understood the importance of security and how to apply CSP in Django. Beyond his technical knowledge, he is a person of complete trust, committed to his work and with an admirable level of professionalism. Without a doubt, a reference from whom I learned a lot.
Juan Antonio Noci Sanchez
Juan Antonio Noci SanchezDEV · Onets
Working with Arturo is a pleasure, he is able to give you the product you want and at the same time improve it to points you did not suspect. I would highlight his great technical level as he has a very complete full stack profile that goes from secure and continuous development to security configuration on servers, through mastery in mechatronics and public and private web3 networks. Great professional and better person, it is always a pleasure to work with him. If you are looking for a personal or innovative project development, he is your trusted engineer.
J. Francisco Belizón Rodríguez
J. Francisco Belizón RodríguezDEV · Onets
Great leader and professional. Working alongside him has been an unparalleled experience. His great capabilities not only as a professional, but also as a mentor, allowed the team to grow and become a small family. Arturo is a great professional with great abilities to capture what the client is looking for and the ability to make it a reality.
Alberto Cucarella Beltrán
Alberto Cucarella BeltránGraphic designer · Onets
We started working with Arturo following an international Joint Venture between two corporations, with great process and integration complexity for both, especially in workflows, communication and urgency in various multisector developments. We brought Arturo in as an external consultant, and after the demonstrated leadership, problem solving, initiatives and even media management against the clock due to product launches, we decided to hire him permanently as CTO. Probably the best decision we have made. Without him, we would not only not have come so far, but we would not have opened new business lines thanks to the brand positioning that his experience, degree and involvement in the entire process gave us.
Gonzalo Aupí
Gonzalo AupíChief Technology Officer · Digital Ventures
I commissioned Arturo to develop a web application with bank connections via API and fully customized dashboards, and the result exceeded my expectations. It's not just a saying - Arturo was very proactive with the functional design and added features to the platform that were even beyond what I had in mind and, most importantly, they were things that fit perfectly and added value to my project. From the very first moment, Arturo demonstrated a very high level of commitment and attention to detail, and this is something very difficult to find in development projects. He personally devoted himself to the project, making sure at all times that the result was exactly what we needed and that we were fully satisfied. I greatly appreciate his dedication and closeness, and I will definitely count on him again for future projects.
Juan Pablo Fernández Agüero
Juan Pablo Fernández AgüeroCEO · Platapp Tech S.L.
Arturo is a multifaceted developer who has many years of experience and many projects under his belt. He knows how to find a way to solve a problem and manages to translate it into code with his methodology. Additionally, he always has a unique approach to each problem, so when working with him it is difficult to label him with an existing tag - the best way to describe him is one of a kind. If you want your project to come to life in a competitive timeframe, don't hesitate to consult him.
César Patiño Burgos
César Patiño BurgosProduct Manager · TechFlow Solutions
Working with Arturo was a true pleasure. He is one of those rare people who, when you work with them, give you a sense of mental speed - he understands what you want, asks what is necessary to develop the project, and does whatever it takes to make it happen. I am not a programmer, but I always got the feeling that Arturo is one of those people who operates at a higher level of thinking than most, and despite that, he is humble and has great communication, as well as great human quality, which he demonstrated with flying colors despite the difficult circumstances in which we collaborated. He is one of those people I will remember for a long time.
Jaume Guardiola Salvatella
Jaume Guardiola SalvatellaCEO · Jaumeguardiola
I had the opportunity to work with Arturo on a blockchain technology project, and it was an excellent experience. From the very first moment he demonstrated deep technical knowledge, a very professional approach and great teamwork ability. His commitment to quality and attention to detail made a big difference in the project development. I would definitely recommend working with him to any team looking for a reliable and highly competent professional.
Fran Vañó
Fran VañóWeb3 Developer · Blockchain
The portal not only has a professional appearance, but also has a very characteristic style that makes it visually attractive and dynamic. The combination of fonts, the contrast of yellow color on black background and hover effects on key sections contribute to a fluid and immersive browsing experience. One of the aspects I liked most is the timeline, which presents a clear and well-structured description of each of your works. The information is synthesized precisely, achieving a perfect balance between detail and readability, without overloading the reader's view. Without a doubt, I can affirm that you are a dedicated professional who always seeks to squeeze the most out of each project to give it even greater meaning. You not only meet expectations, but exceed them by far.
Diego Fernández Villalba
Diego Fernández VillalbaDEV · Onets
I was lucky to coincide with Arturo on a particularly complicated project for many reasons, and from that experience I took away much more than long working hours. He was project manager and his leadership, commitment and closeness made a real difference in the team and results. And personally, I learned another way to face problems, with an attitude that mixes humor, determination and heart. Arturo not only handles a lot of programming languages, tools, frameworks - something that becomes evident quickly when you see the quantity and variety of projects he has worked on - but he has the ability and speed to analyze, find the root of problems and solve them, with some humor along the way. And beyond the technical, which is already a lot, Arturo is a person you can trust without hesitation. When he gets involved, he really does. He is one of those who stays late if necessary, not to look good, but because he really cares that the team reaches objectives without burning out along the way.
Javier Luque
Javier LuqueApp Developer · Grand Solar
I have known Arturo for twenty-five years, a correct, upright and optimistic person to the max. If there is something I am clear about in life, it is that attitude represents ninety-five percent; the rest is made up of knowledge and practice. Being able to count on Arturo is a privilege. In my opinion, he is too generous... but a star. What he is capable of creating is difficult to describe in few words. Master of masters, always willing to learn, etc... Additionally, he has the magic of understanding what you need and flowing knowing what you think. He understands the essence of the client and their thoughts. Endless qualities that one is born with. And Arturo was born with the gift of understanding, developing and respecting... It has been a true fortune to cross paths with him in my life. Total thanks always.
Alberto Cortés Rodriguez
Alberto Cortés RodriguezCEO · Villa Cortés
01 / 15
Let's connect

Let's talk about your project

Do you have a project in mind? Contact me to discuss how I can help you take it to the next level.

Emailinfo@arturojimenez.es
LocationSpain
Working hoursLun - Vie: 9:00 - 18:00

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