Registro Civil Tramites
Country certificates and documents management platform for Spanish citizens.
Miguel Ángel Rodríguez
Blockchain Dev & Polyglot Software Engineer
Specialized in creating and designing websites that look great, load fast, and are easy to manage. That attracts users with clean, modern designs that are adaptable to any device.
Projects
AAVE Chan
Private emploees web3 dApps for internal AAVE management.
Achievo
Web3 dApp for goals achieving by doing challenges
Kaspersky
SEO optimized landing pages for best antivirus brands in the world
Remolonas
Eat healthy and help the planet and contribute to a more sustainable future
Maarlab
Technological Solutions for the Accommodation Industry.
Plusholidays
The best holiday accommodations in Spain. Villas with private pool, Apartments and Houses in Spain.
SaaSlidator
Stop wasting hours validating profitable ideas. Gain insights from your SaaS idea description in seconds
Impacting Digital
Helps companies to transform and acquire a digital DNA. From strategic approach, routine tasks, to activities and processes.
The House Talents
In constant movement in search of new opportunities, new projects for our represented and represented actors.
Artistealo
Find all kinds of artists, services and suppliers for events or celebrations.
Web3 Dashboard
Open source dApp specialized in previewing the balance of your Metamask and token managing quickly and easily.
Unic Legacy
The first portal that transforms the most relevant moments of your favorite idols into NFTs.
CryptoMaster Academy
School specialized in cryptoeconomics and decentralized finance.
Avem Finance
Launchpad and DeFi products built on top of Shiden Network.
Themar Solutions
Themar is company that develop custom Blockchain and DLT project solutions.
About
Senior polyglot software engineer with 7 years building web products with real users, real traffic and real technical debt. I build custom software for startups — B2B SaaS with React, Next.js and Web3.
I reduced a hotel booking platform's bundle size by 4×, eliminated manual deployments across an entire agency with CI/CD, and led the frontend of a Booking-style product from day one. Performance is a requirement, not a nice-to-have.
I work with TDD, SOLID and self-explaining architecture, automate everything repeatable, and lead without becoming a bottleneck. Stack: TypeScript, React, Next.js, Angular, Vue, Node.js and Deno, plus multi-chain dApps in Solidity (Polygon, BNB Chain, Avalanche) and AI integration in both products and workflow. Open to Senior or Lead product engineering roles, in Madrid or remote.
Experience
SENIOR FULLSTACK DEV
MAITE.AI (REMOTE)
Full stack development of Maite's AI chat (Next.js + TypeScript / NestJS), serving 1,500+ active users and large data volumes, shipping every feature with test coverage. - Closed 50+ bugs in 6 months, cutting the backlog 20% and average resolution time to 2 days. - Contributed to a retention initiative that halved monthly churn from 4% to 2%. - Active role migrating the app to Doctrine's infra (200+ employees), reaching feature parity in 8 weeks and shaping key architecture and product decisions. - Coordinated in English with several Doctrine teams during the technical integration. - Strongly typed code, tests on every feature, 90% coverage, accurate estimates and direct product communication.
FULLSTACK DEV FREELANCE
REGISTRO CIVIL TRAMITES
Built a document management platform for Spanish citizens to request and track official certificates from the civil registry. - Designed the request flow and status tracking for birth, marriage and death certificates. - Integrated secure payments and document delivery. - Optimized SEO and Core Web Vitals to rank on high-intent legal queries.
SENIOR FRONTEND DEV
MAARLAB (HYBRID)
Led refactoring and infrastructure of the main travel engine of a major hotel booking platform (Spring Hoteles), optimizing performance and developer experience. - Performance: cut the booking web bundle size 4x and sped up build times via testing, asset minification and code optimization. - Automation & scalability: set up automated deployments and optimized infra, streamlining processes and reducing errors. - Modernization: led refactoring and technical documentation of the main project for easier collaboration and maintenance. - Frontend tech leadership: led a small team building a large-scale Booking-like app applying TDD, SOLID and Screaming Architecture. - Process: defined team features and roadmap, cutting meeting and PR-review time and speeding up delivery.
FRONTEND DEV FREELANCE
PLUSHOLIDAYS
- Frontend tech migration from Nuxt2 to Nuxt3. - Pixel perfect layout for one of the biggest travel agencies in Spain. - Implemented better UX increasing the sellings.
FRONTEND DEV FREELANCE
REMOLONAS
- Improved the performance making almost 100 score in mobile Google's lighthouse metrics. - Made the website accessible for everyone.
WEB3 DEV FREELANCE
AAVE CHAN
Built a private web3 dApp for internal AAVE management used by the team. - Implemented wallet connection and on-chain interactions with the AAVE protocol. - Crafted reusable UI components and a typed, testable frontend architecture. - Optimized transaction flows and error handling for a smooth internal UX.
FULLSTACK JUNIOR DEV
IMPACTING DIGITAL (REMOTE)
I am in charge of some of the BMW webpage's frontend layout, microservices and automations. I have configured the CI/CD for every company's project, with production contenerized environment and remote deployments.
FRONTEND DEV FREELANCE
ZONA AGRARIA
- Built the platform with accessible form to create product quotations. - Crafted a fast notification service. - Created reusable django web components for better reusability and scalability of the project. - Managed to created the required MVP of project in no time.
FRONTEND DEV FREELANCE
UNIC LEGACY (REMOTE)
Refactored several web components and styles from an already started project about a NFT SPA in react. I made the microservices integration for the user auth.
SOFTWARE ENGINEER
GO WEB3-TOKEN LIB
Made a fast lib to verify and decrypt signed Ethereum tokens and use it as middleware in Golang backends and libs.
FULLSTACK DEVELOPER
Automated Videos
I made a complex infrastructure that connects several microservices in different programming languages to create an automated SAAS that generates videos / images from templates and scraped data such as online blog posts with a clean and simple user interface to schedule the publication of the contents.
FRONTEND DEV FREELANCE
THEMAR SOLUTIONS (REMOTE)
Implemented the layout for a static web3 crypto related landing pages with vuejs, web3js and tailwind, making reusable layout components to improve the development experience.
FULLSTACK DEVELOPER INTERSHIP
AT CARVER AS (SPAIN, BARCELONA)
Was in charge of the microservices for a CMS, its Frontend layout, the authentication and the Backend integration with Angular and Java Spring boot.
FRONTEND DEV FREELANCE
ALPHA SOLUTIONS (REMOTE)
Created the authentication state, the session persistance, role system and several video features of an crypto investment courses webpage with Vuejs, firebase and docker.