Hire the best JavaScript Developers in Juiz de Fora, BR

Check out JavaScript Developers in Juiz de Fora, BR with the skills you need for your next job.
Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 793 client reviews
  • $40 hourly
    ***** I'm not interested in borrow, rent, sell, assign or anything about my upwork profile than jobs or freelances. Please, contact me only if you are interested in my developer services. ***** I am Bachelor's Degree in Information Systems at Federal Education, Science and Technology Institute of southeast of Minas Gerais, Brazil I am NodeJS developer since 2014, most part of time working on backend/API to Internet Of Things projects. Also worked in projects envolving from cryptocurrencies to geolocation, using the most moderns approaches such serverless (AWS, Firebase, Heroku), microsservices, common hosting (Digital Ocean, AWS EC2, Google Cloud Engine, KingHost) and devops (Docker). I'm usually working in backend projects
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    React Native
    Firebase
    PostgreSQL Programming
    Internet of Things
    API Development
    AWS Lambda
    ExpressJS
    GraphQL
    Node.js
    React
  • $15 hourly
    I'm a software engineer experienced in .Net Framework, dotNet Core, Azure SQL Database, and various cloud technologies. I enjoy collaborating on innovative ideas that can make a difference in the user's life.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Xamarin
    Oracle PLSQL
    Transact-SQL
    jQuery
    Twitter/X Bootstrap
    ASP.NET MVC
    C#
    ASP.NET Core
  • $15 hourly
    Hello, I'm Victor. I design and develop with Webflow, translating Figma, Photoshop, PowerPoint designs, and more into high-performing websites. Whether you need a killer landing page or a full redesign, I'm here to bring your vision to life. Here is my background: - Fullstack developer starting from 2014 - Chief of Technology at Simpla Invest, 2017-present - Using Webflow since 2020 - Simpla Club showcase: my SaaS with 7,000 active subscribers fully built with Webflow and low-code integrations. Services I Offer: - Website Designing & Development - Marketing, business and personal Automations - High-fidelity websites - Membership Platforms - Custom Apps Development (and mobile) - API Integrations - Product & Marketing Advice - Landing Page Conversion-Boost Consulting I aim to deliver every project with maximum satisfaction. You pay only after the completion of the project and once you are 100% satisfied. Ready to have less worries and more customers? Message me or invite me to your job. I'd love to hear about your business!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    jQuery Mobile
    jQuery
    HTML
    CSS
    UI Animation
    Adobe Photoshop
    Web Design
    Webflow
    Responsive Design
    Adobe XD
    Adobe Illustrator
  • $8 hourly
    Minha paixão pela tecnologia se iniciou quando ganhei meu primeiro computador, aos 6 anos de idade. Desde então, nunca fiquei um dia sequer sem me aventurar pelo mundo da informática, o que me incentivou a estudar Análise e Desenvolvimento de Sistemas. Adoro explorar meu lado analítico e criativo, unindo ideias e ideais, caminhando lado a lado com a tecnologia e seus relacionados. Meu principal objetivo na área é contribuir com a inovação digital do mundo e explorar minha grande paixão.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    QA Software & Testing Tools
    Angular
    CSS
    HTML
    Vue.js
    Node.js
    Java
  • $10 hourly
    Computer Science student, with experience in website and systems development. Also experienced in typing and transcribing documents
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    REST API
    Modeling
    Scrum
    CSS 3
    HTML5
    Git
    SQL
    Vue.js
    PHP
    Laravel
  • $25 hourly
    I'm a passionate and versatile full-stack software engineer with a proven track record of delivering high-quality software solutions. My love for technology and problem-solving has driven me to excel in the dynamic world of software development. As a freelancer, I bring a unique blend of technical expertise, creativity, and a commitment to delivering exceptional results. Skills: - Full project management from start to finish - Front-End Technologies: HTML, CSS, JavaScript, React, Next.js, Typescript - Back-End Technologies: Python, Django, Flask, FastAPI, Javascript, Node.js - Database Systems: SQL, NoSQL, MySQL, PostgreSQL, MongoDB, Firebase - Server Management: GCP, Azure, Docker, Kubernetes - Version Control: Git, GitHub, GitLab - Agile Methodologies: Scrum, Kanban - Web and Mobile Development: Responsive design, RESTful APIs Experience: I have worked on a wide range of projects, from creating dynamic web applications to building scalable back-end systems. With a strong foundation in both front-end and back-end technologies, I am able to provide end-to-end solutions. My experience includes collaborating with cross-functional teams, meeting project deadlines, and exceeding client expectations. Let's Collaborate! I'm ready to bring your ideas to life and help you achieve your project goals. If you're seeking a skilled and reliable full-stack software engineer for your next project, let's connect and discuss how I can contribute to your success! =)
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API
    FastAPI
    NoSQL Database
    Flask
    Docker
    Next.js
    TypeScript
    React
    SQL
    MySQL
    PostgreSQL
    MongoDB
    Django
    Python
  • $18 hourly
    Experienced front-end developer with a passion for creating dynamic and user-friendly web and mobile applications. Proficient in React, React Native, and Next.js, with a strong understanding of modern JavaScript, HTML, and CSS. Skilled in translating design mockups and wireframes into responsive and interactive interfaces. Adept at collaborating with cross-functional teams to deliver high-quality products that meet client objectives and user needs. Continuously learning and exploring new technologies to stay updated with the latest trends in front-end development. Languages: JavaScript, HTML5, CSS3 Frameworks/Libraries: React, React Native, Next.js Tools/Technologies: Git, Redux, Styled Components, GraphQL Development Tools: Visual Studio Code, npm, Yarn
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Six Sigma
    Firebase
    SQL
    Node.js
    TypeScript
    HTML
    Next.js
    React Native
    React
  • $17 hourly
    I'm Lucas Figueiredo, a technology enthusiast from Brazil with nearly 7 years of experience as a full-stack developer, specializing in the React Native framework. My deep passion for languages and love for nature fuel my curiosity and innovation, allowing me to connect effortlessly with diverse teams and clients. I thrive on challenges and am proactive in finding solutions, leveraging my strong communication skills to bridge the gap between technical intricacies and clear, effective collaboration. Constantly on the lookout for new technologies and frameworks, I'm driven to create smarter, more efficient solutions that deliver real impact. ➤ Languages: • JavaScript • TypeScript • Swift ➤ Frameworks: • React Native • React.js • Next,js • Node.js • Nest.js • SwiftUI ➤ Cloud • GitHub + GitHub Actions • Gitlab + Gitlab CI • Firebase • AWS (User)
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Git
    TypeScript
    SwiftUI
    Swift
    NoSQL Database
    SQL
    Firebase
    PostgreSQL
    Figma
    NestJS
    Node.js
    Next.js
    React
    React Native
  • $10 hourly
    In 2024, I started my degree in Information Systems (EAD) at Estácio JF and I am in a career transition to the area of front-end development. I have knowledge of HTML, CSS and JavaScript, and continue to expand my skills through continuous studies for Full-Stack. I am proficient in the Windows environment and have knowledge of Office package. I'm excited about the prospect of a career transition for Front-end Web Development to contribute in a way innovative and efficient in future projects.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Application
    CSS 3
    HTML5
    Web Development
  • $91 hourly
    Iniciei minha jornada no fascinante mundo da tecnologia aos 6 anos, quando recebi meu primeiro computador. Desde então, minha paixão pela informática só cresceu, impulsionando minha decisão de estudar Análise e Desenvolvimento de Sistemas. Ao longo dos anos, desenvolvi uma afinidade única com a interseção entre minha mente analítica e criativa. Com uma sólida formação acadêmica e uma trajetória contínua de exploração no campo da tecnologia, busco ativamente oportunidades para contribuir significativamente para a inovação digital. A cada dia, me dedico a unir ideias e ideais, alinhando-me com os avanços mais recentes do setor. Busco oportunidades desafiadoras onde minha paixão pela tecnologia e meu background em Análise e Desenvolvimento de Sistemas possam convergir. Meu objetivo é contribuir ativamente para a inovação digital, aplicando minha habilidade única de combinar análise e criatividade para impulsionar projetos e superar expectativas.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Kanban Board
    SQL
    CSS
    HTML
    C#
    .NET Framework
    Java
  • $60 hourly
    With technical training in Electrotechnics from Senai, completed in 2023, and computer skills, including the Office suite and Adobe, I am currently deepening my knowledge in Systems Analysis and Development at Estácio. Work autonomously, which allows me to apply and expand my technical skills in diverse projects. I am moved by continuous search for learning and innovation, always aiming deliver solutions that combine technology and efficiency.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Cybersecurity Management
    Web Analytics
    Adobe Photoshop
    Illustration
    HTML
    CSS 3
    Microsoft Office
    Web Application
    Web Development
  • $3 hourly
    Durante minha trajetória, forneci serviços especializados para grupos de desenvolvimento e manutenção de scripts voltados para jogos. Ao longo desse percurso, desenvolvi proficiência em diversas linguagens, incluindo .Lua, C#, HTML, CSS e JavaScript. Atualmente, estou ampliando meus conhecimentos ao cursar Engenharia de Software na Estácio. Minha paixão e afinidade particularmente destacadas estão nas linguagens JavaScript , PHP , nas quais busco constantemente aprimorar minhas habilidades e conhecimentos.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    PHP
    MongoDB
    Node.js
    CSS 3
    HTML5
    MySQL
    jQuery
    Laravel
  • $20 hourly
    I'm an experienced developer with a strong focus on creating responsive web solutions. Whether you're aiming to establish a commanding online presence, streamline your services, or bolster your development team, I'm here to lend a hand. My expertise encompasses a range of technologies, including React, JavaScript, TypeScript, Node.js, MongoDB, Supabase, and more. I'm well-versed in enhancing user experiences through the power of Tailwind CSS and Bootstrap, and I've dabbled in mobile app development using React Native. I'm comfortable with both greenfield projects, where I can guide your vision from start to execution, as well as existing projects, where I can implement new features, provide maintenance, and create custom components.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Supabase
    MongoDB
    React Native
    jQuery
    Bootstrap
    TypeScript
    Node.js
    Next.js
    Vue.js
    React
    Tailwind CSS
  • $28 hourly
    I am an experienced frontend developer with a strong background in SvelteKit, React, Next.js, and React Native. I have independently developed and maintained complex CMS platforms, integrated APIs, and implemented responsive UIs for web and mobile applications. I excel in full-cycle development, handling both backend integrations and frontend logic while enhancing user experiences. Proficient in modern CSS frameworks like Tailwind, SCSS, and Styled Components, I bring versatility and problem-solving skills to every project I undertake.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    SCSS
    CSS 3
    HTML
    TypeScript
    Next.js
    API Integration
    Tailwind CSS
    React Native
    React
    Svelte
    Mobile App Development
    App Development
    Web Application
    Web Development
  • $15 hourly
    Objetivo: Busco uma oportunidade na área de Tecnologia da Informação (TI), onde posso aplicar meus conhecimentos em análise de sistemas e contribuir para o sucesso da equipe. Sobre Mim: Sou um entusiasta da tecnologia da informação (TI) com paixão por análise de sistemas. Em transição de carreira atualmente trabalho como autônomo, onde desenvolvi habilidades essenciais, como organização, pontualidade e atendimento ao cliente. Agora, estou empenhado em transformar essa paixão em uma carreira sólida na área de TI.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Personal Computer
    Product Development
    Time Management
    Communication Skills
    CSS
    Microservice
    Organizational Development
    React Native
    React
    Java
    Desktop Application
    International Development
    Web Application
    Web Development
  • $3 hourly
    Sou estudante da área de tecnologia e tenho interesse em desenvolvimento no geral, com foco nas linguagens que tenho mais repertório e conhecimento: C++, JavaScript e Java.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Algorithms
    Java
    C++
    Software Development
    Desktop Application
    Web Development
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