Javascript Developers for hire in Portugal
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Sponsored Freelancers
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My major skills: ✅ Programming languages: React, Vue, Next, Nuxt, Tailwind CSS, C#, Nest, Python, PHP ✅ Database Design: MongoDB, MySQL, Postgresql, SQL Server, RabitMQ ✅ Project management Toolkits : Github, Gitlab, CI/CD About Me: As a developer, my primary goal is to provide my customers with precisely what they...My major skills: ✅ Programming languages: React, Vue, Next, Nuxt, Tailwind CSS, C#, Nest, Python, PHP ✅ Database Design: MongoDB, MySQL, Postgresql, SQL Server, RabitMQ ✅ Project management Toolkits : Github, Gitlab, CI/CD About Me: As a developer, my primary goal is to provide my customers with precisely what they want while guiding them throughout the development process. I am a competitive and passionate professional who thrives on challenges and is always eager to improve and learn new technologies. Work Ethics: I deeply respect my clients and take full responsibility for my work. I welcome constructive criticism as an opportunity for growth and continuous improvement. By maintaining open lines of communication and a collaborative approach, I ensure a smooth and successful partnership with my clients. If you're looking for a dedicated and ambitious developer to create custom websites tailored to your needs, I'd be thrilled to collaborate with you. Kind regards less
Hire MNasich
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I am highly experienced back-end developer with expertise in Django(Django REST framework), Ruby on Rails, PostgreSQL. I specialize in creating scalable, secure, and efficient solutions tailored to client needs. My hands-on experience spans designing system architectures, integrating payment systems, building modular...I am highly experienced back-end developer with expertise in Django(Django REST framework), Ruby on Rails, PostgreSQL. I specialize in creating scalable, secure, and efficient solutions tailored to client needs. My hands-on experience spans designing system architectures, integrating payment systems, building modular APIs, and deploying cloud-based applications. Technical Expertise Back-End Development ✔ RESTful API Development, Microservices ✔ Node.js, Django, Flask, Ruby on Rails ✔ Payment Integration: Stripe, PayPal ✔ ORM Tools: SQLAlchemy, Django ORM, Active Record ✔ Serverless Applications: AWS Lambda ✔ Security: JWT Authentication, OAuth Front-End Development ✔ React, Angular, jQuery ✔ Redux for State Management ✔ Responsive UI Design and Optimization Databases ✔ PostgreSQL, MySQL, MongoDB WebGIS and Mapping ✔ArcGIS Pro, ArcGIS Online, JavaScript API Why Choose Me? ✪ Proficient in writing clean, modular, and maintainable code. ✪ Experienced in troubleshooting and optimizing performance. ✪ Expertise in integrating secure and reliable payment gateways like Stripe and PayPal. ✪ Committed to delivering high-quality solutions tailored to client goals. ✪ Unlimited revisions and a focus on client satisfaction. ✪Timely delivery, often ahead of schedule. Portfolio Highlights ➞ Integrated Stripe and PayPal payment gateways into e-commerce platforms, streamlining transaction processes. ➞ Built scalable APIs for an e-commerce platform using Ruby on Rails, reducing load times by 25%. ➞ Developed a geospatial web application with ArcGIS API, improving data visualization for users. ➞ Designed a responsive front-end with jQuery and React, enhancing user interactivity. ➞ Deployed a serverless application on AWS Lambda, cutting operational costs by 20%. less
Hire joeabrha
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Klenilton Silva - Especialista em Desenvolvimento e Automação Web Sou um desenvolvedor web experiente, especializado em Python e Java, com ampla expertise em desenvolvimento de aplicações web, automação e sistemas customizados. Minha missão é transformar ideias em soluções digitais eficientes, escaláveis e seguras. O...Klenilton Silva - Especialista em Desenvolvimento e Automação Web Sou um desenvolvedor web experiente, especializado em Python e Java, com ampla expertise em desenvolvimento de aplicações web, automação e sistemas customizados. Minha missão é transformar ideias em soluções digitais eficientes, escaláveis e seguras. O que posso fazer por você? Desenvolvimento Web Full Stack (Front-end e Back-end) Automação de Processos (Web Scraping, Bots, Integração de API) Desenvolvimento de Aplicativos Desktop (Windows, Mac, Linux) Criação de Chatbots (Telegram, Discord, Assistentes Virtuais) Gerenciamento de Banco de Dados (MySQL, PostgreSQL, MongoDB, SQLite) Integração de API e Web Services (REST, GraphQL, Google Apps) Sistemas de E-commerce (Shopify, WordPress, Wix) Análise de Dados e Machine Learning Tecnologias que domino: Front-end: HTML, CSS, JavaScript (React, Vue, Tailwind) Back-end: Python (Django, Flask), Java (Spring Boot) Bancos de dados: MySQL, PostgreSQL, MongoDB Automação: Selenium, BeautifulSoup, Scrapy, Appium Desenvolvimento de desktop: PyQt, Tkinter, Electron Infraestrutura e hospedagem: Docker, AWS, Firebase Com mais de 3 anos de experiência, entrego projetos de forma eficiente e de alta qualidade, sempre com foco em código limpo, melhores práticas e desempenho. Além de ser um profissional dedicado, sou marido e pai de três filhos, o que reforça minha disciplina e comprometimento com cada projeto. Se você está procurando um desenvolvedor confiável, estratégico e voltado para resultados, estou pronto para dar vida à sua ideia! Vamos discutir seu projeto! less
Hire KLENILTONSILVA
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A Senior Mobile Developer with 10 years of comprehensive experience in software engineering, specialize in mobile application Development and artificial intelligence, I combine robust app development skills with innovative AI solutions to create smart, user-friendly applications that deliver value. Whether it’s a...A Senior Mobile Developer with 10 years of comprehensive experience in software engineering, specialize in mobile application Development and artificial intelligence, I combine robust app development skills with innovative AI solutions to create smart, user-friendly applications that deliver value. Whether it’s a high-performance mobile app or a custom AI solution (like chatbots, predictive analytics, or computer vision), I am here to bring your vision to life. What I Offer: - Mobile App Development Expertise Cross-Platform Apps: React Native, Flutter, and Ionic. Native Apps: Swift, Kotlin, and Java. Backend Integration: Firebase, REST APIs, GraphQL, AWS. - AI Development Expertise Machine Learning Models: Python, TensorFlow, PyTorch, scikit-learn. Natural Language Processing (NLP): Chatbots, Text Analysis, and Voice Assistants. Computer Vision: Image Recognition, OCR, and Object Detection. Predictive Analytics: Data insights for smarter decision-making. AI Deployment: Integration of AI models into mobile apps. - Full-Stack Development Frontend: React, Vue.js, HTML/CSS. Backend: Node.js, Django, Flask. Cloud: AWS, Google Cloud, Azure. Key Skills ✅ React Native, Flutter, Swift, Kotlin, Java ✅ TensorFlow, PyTorch, OpenCV, scikit-learn ✅ NLP: SpaCy, Hugging Face, Dialogflow ✅ API Integration, Firebase, MongoDB, PostgreSQL ✅ App Store & Google Play Deployment less
Hire MartimB
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I am a web and mobile developer with over 20 years of experience. In my career, I have finished numerous web and mobile projects with modern javascript frameworks.I am a web and mobile developer with over 20 years of experience. In my career, I have finished numerous web and mobile projects with modern javascript frameworks. less
Hire jilvanx
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VitorAMoreira25 VitorAMoreira25
$30 USD / hour
Cloud Specialist | Python | Web Scrape | PowerBIPortugalGreetings! I am experienced in Data Engineering and Data Analysis having 2.5 years of experience in these areas. I'm currently finishing my graduation in Computer Engineering at the University of Porto, Portugal, with a robust experience in data analysis, visualization, and engineering. My professional journey across...Greetings! I am experienced in Data Engineering and Data Analysis having 2.5 years of experience in these areas. I'm currently finishing my graduation in Computer Engineering at the University of Porto, Portugal, with a robust experience in data analysis, visualization, and engineering. My professional journey across various industries, coupled with my academic pursuits, has equipped me with profound expertise particularly in Python, SQL, and data visualization tools like PowerBI. My areas of expertise include: ✅ SQL and Database Design ✅ ETL and Data Pipeline Development ✅ PowerBI and Advanced Data Visualization ✅ Data Migration and Web Scraping Techniques ✅ Python Scripting and Automation ✅ Project Management and Team Leadership ✅ Effective Communication across Multilingual Environments As a Data Engineer, I specialize in transforming complex datasets into clear and actionable insights. I have refined my skills over the years to build and optimize data processes that support data-driven decision-making. When working with clients, I view myself as an integral part of their team, dedicated to understanding their needs and delivering precisely what they require. If given the opportunity to collaborate on your project, you can expect me to: ✅ Thoroughly comprehend your business objectives and data challenges ✅ Maintain clear and open communication at all stages of the project ✅ Develop a detailed, actionable project plan tailored to your specifications ✅ Offer continuous support and adapt to project evolutions and needs ✅ Ensure the final deliverables align with your expectations and add tangible value Let’s collaborate to harness the full potential of your data and achieve your business goals efficiently and effectively. Let's get your project done right the first time around. less
Hire VitorAMoreira25
