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Hire the best HTML Developers in Sao Paulo, BR

Check out HTML Developers in Sao Paulo, BR with the skills you need for your next job.
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Clients rate HTML developers
Rating is 4.8 out of 5.
4.8/5
based on 555 client reviews
  • $50 hourly
    • 5.0/5
    • (47 jobs)
    I have been working as a System Developer and Solution Researcher since 2009. With my experience with api integration, script languages like python, javascript and no code development (zapier, integromat, bubble) I can help companies to quickly automate repetitive proccess and create time for the employees to focus on what really matters. More than 70 jobs succesfully completed as a freelancer worldwide. Around 7 years of experience on remote work. My main skills are API integration and process automation. I have extensive experience with Google Apps Script, Gmail API, Google Sheets API and Google Forms also integrating with different APIs. Additionally, I have worked with Zapier, implementing custom Python code, and more complex zaps using paths, filters, loop. Knowledge on other automation tools like make.com. I also have experience with C, C++, C#, Java, JavaScript, PHP, HTML5, CSS, MySQL, game programming, Python, web scraping, and Django.
    Featured Skill HTML
    Scripting
    Make.com
    Google Apps Script
    Python Script
    Web Services Development
    Google Docs
    Zapier
    Automation
    Google Sheets
    API
    RESTful API
    Web Development
    Django
    API Integration
  • $15 hourly
    • 5.0/5
    • (6 jobs)
    Hi! I'm a Full-Stack Web Engineer with more than 6 years of professional experience. I have extensive experience with TypeScript, Node.js, and React. Additionally, I’m actively getting into Rust and Swift. I have experience working across a variety of environments, including startups, small and large companies, as well as freelance projects. I easily adapt to different team dynamics, workflows, and business scales. I am fluent in English, with strong communication skills. ✅ About my approach: I write code that is both easily understandable and performant. I prevent code complexity and keep designs scalable and maintainable. I stay up-to-date with the latest technologies, integrating them into my work to enhance problem-solving and development efficiency. I have experience with different kinds of projects—teams with 100+ people and small startups. I have developed basic front-end applications such as admin views, account views, landings, real-time chat apps, Telegram mini-apps (high-load real-time crypto clicker), a small crypto trading platform, and worked a bit with smart contracts and web scraping with Puppeteer. I can work with almost anything—if I don’t have experience with a particular technology, it’s not a problem for me to learn it quickly. I’m a shell user, primarily using Linux and Neovim in my job. I enjoy both for their performance. Here are more details about my stack: MacOS; Linux - mostly Debian, Ubuntu, and Kali Shell scripts (I have repos with shell scripts for the automated setup of my Linux machine) Neovim - custom setup with Lua Object-Oriented Programming, Functional Programming TypeScript, Node.js, HTML, CSS, PHP, and Rust Git Methodologies - SOLID, DRY, KISS, YAGNI REST, WebSockets JavaScript Stack: Node.js (+nvm), Bun (also yarn and pnpm) ECMAScript 6+ standards TypeScript React, NestJS Vite, Webpack, Monorepos with yarn and pnpm workspaces, and turborepo socket.io yup, zod animejs, react-spring eslint, stylelint, prettier, biome Jest, Vitest, Cypress Other libraries like lodash, d3, ramda, dayjs, date-fns, collect.js, and more. React Stack: React Hooks React Query, Axios, rtk-query React Router Dom, Tanstack Router Zustand, Jotai, Redux Toolkit react-hook-form react-three-fiber, react-three/drei, react-spring/three Next.js Styles: Tailwind, CSS Modules, styled-components, tss-react, stitches.js dnd-kit Backend Stack: PHP - Laravel Node.js - NestJS, Express, Hono (for Bun.js), Prisma Rust - Tokio, Axum, Tokio-Tungstenite MySQL, MongoDB, MariaDB, PostgreSQL, CockroachDB, Cassandra, TypeSense, Redis SQL, CQL Rust Stack: Tokio, Tower Axum Tokio Tungstenite Serde, Rmp, Rmp Serde and other utility libraries
    Featured Skill HTML
    macOS
    SQL
    MongoDB
    Bash
    Linux
    Rust
    NestJS
    ExpressJS
    RESTful API
    GraphQL
    CSS
    Node.js
    TypeScript
    React
  • $15 hourly
    • 5.0/5
    • (10 jobs)
    👍 100% Job Success Score 🥇 +7 years of professional experience 👨🏻‍💻 718+ Websites Created Welcome! I'm Felipe, your expert WordPress developer. I have knowledge in all areas of website creation, from Hosting to SEO. I specialize in transforming digital visions into visually stunning and highly effective websites that drive business growth. My keen eye for design and deep understanding of web functionality ensure that your website will not only look amazing but also perform perfectly. 🌟 Why Choose Me? 🏆 Top Rated Plus Professional: Consistently recognized for delivering exceptional quality. 👍 100% Job Success Score: A proven track record of success. 😄 Satisfied Clients: A long list of happy clients who trust my expertise. ⏳ Fast Turnaround: Efficient project delivery without compromising quality. 📞 Excellent Communication: Clear, responsive, and ongoing communication. 👨🏻‍💻 718+ Websites Created: Extensive experience across various industries. 📈 My Services ✅ Website Design: I excel at creating captivating layouts and visual designs that truly represent your brand. ✅ SEO Optimization: Extremely proficient at enhancing your site to rank higher on Google and other search engines, driving more organic traffic. ✅ Speed Optimization: I implement advanced techniques to boost load times, providing a superior user experience ✅ Website Hosting: Offering reliable and secure hosting solutions to keep your website running smoothly. ✅ Maintenance & Support: Providing top-notch regular updates, bug fixes, and technical assistance to keep your website in perfect condition. ✅ Website Security: Expert in protecting your site against cyber threats and spam, ensuring your data remains secure. ✅ Responsive Design: I ensure your site looks great and functions perfectly on desktops, tablets, and smartphones. 🛠 Tools I Master ☑ WordPress: Expert in building and customizing WordPress sites. ☑ Elementor: I've used this page builder to create over 500 websites. ☑ Yoast SEO: Adept at optimizing websites with this top-notch SEO plugin (as well as others). ☑ DIVI: Skilled in creating versatile and user-friendly designs. ☑ Avada: Proficient in developing highly customizable and powerful websites. ☑ WooCommerce: Specialist in setting up robust eCommerce solutions. ☑ Shopify: Proficient in building and managing eCommerce platforms. Let's make it happen! Send me a message to get started.
    Featured Skill HTML
    Website
    Web Development
    WordPress Migration
    Web Design
    Landing Page
    Web Hosting
    SEO Backlinking
    Avada Theme Customization
    Search Engine Optimization
    Divi
    WordPress Development
    Page Speed Optimization
    Elementor
    WordPress
  • $30 hourly
    • 5.0/5
    • (29 jobs)
    Hey there! I'm a designer passionate about creating visually striking and effective designs that elevate brands and businesses. I specialize in crafting engaging visuals for digital platforms, ensuring consistency and high-impact communication. 🔹 Branding & Logo Design – Unique visual identities that make a lasting impression. 🔹 Marketing & Campaign Visuals – Key visuals, banners, and promotional materials. 🔹 Mockups & App Store Assets – High-quality images for digital products. 🔹 Design Systems & Style Guides – Organized, scalable design frameworks. 🔹 File Optimization & Organization – Well-structured Figma/Sketch files for seamless workflows. I combine creativity with strategic thinking to deliver high-quality visuals that stand out. Let’s create something amazing together!
    Featured Skill HTML
    Design Thinking
    Design Concept
    Design Mockup
    Design Analysis
    Photo Editing
    Photo Manipulation
    Adobe Acrobat
    User Interface Design
    Construction Document Preparation
    UI Graphics
    Web UI
    UX & UI
    User Experience
    Website
  • $20 hourly
    • 5.0/5
    • (144 jobs)
    Previous reviews: "Outstanding Delivery! Rafael exceeded my wildest expectations. I'll definitely be back for more!" "Top quality work and a pleasant experience working with Rafael! His translations are accurate and always on time. He's also a very nice guy – highly recommended!" I am a native Brazilian translator with a decade of experience, proficient in both Portuguese and English. Specializing in English-Portuguese translations and proofreading, I ensure fast and precise delivery. Consistently achieving 5-star reviews and perfect scores in the English to Brazilian Portuguese Translation Skills Test and English to European Portuguese Translation Skills Test, I prioritize exceptional quality and client satisfaction. For me, the job is only complete when the client is happy. With a background in Video Game Development and prior experience as a Computer Repair Technician, I bring a comprehensive understanding of technical subjects. Proficient in C, C++, C#, Java, and HTML, I excel in delivering high-quality technical translations. My previous experience spans various domains including legal, medical, immigration, business & marketing, IT, education, games, technical documents, surveys, scripts, patents, user manuals, and mobile applications & websites.
    Featured Skill HTML
    Software Localization
    Microsoft Office
    Medical Translation
    English to Portuguese Translation
    C++
    C#
    Java
    Portuguese to English Translation
    Creative Writing
    Portuguese
    Medical Device User Manual
    Translation
  • $55 hourly
    • 5.0/5
    • (6 jobs)
    Full-Stack Developer with 10+ years of building web apps. For over a decade I’ve been working with PHP, SQL, JS, HTML, CSS, and other modern tools, from optimization, security, and maintenance tasks, passing through plugin and API, to consulting for new solutions. I love bringing ideas to life using programming. Let's chat 💬
    Featured Skill HTML
    Git
    Amazon EC2
    Mailgun
    CodeIgniter
    Data Modeling
    Web Application
    jQuery
    Custom PHP
    MySQL
    API
    CSS
    JavaScript
    PHP
  • $40 hourly
    • 5.0/5
    • (5 jobs)
    Talented Full Stack Developer who graduated from one of the top universities in Latin America. I have three years of experience delivering highly complex projects in TypeScript, JavaScript and Python. I am also especially skilled in working with Git, Node, Three.js, Vite, Rollup, Vitest, Playwright and the Azure ecosystem. Combining attention to detail and flexibility, I excel at proactively seeking solutions in order to deliver high quality results. I am highly efficient at writing, debugging and testing code. As a multilingual professional, I am fluent in English and have years of experience communicating with peers from different cultures across the globe. Pet projects, curiosity and demanding university assignments led me to explore and become competent in multiple programming languages and technologies.
    Featured Skill HTML
    D3.js
    Three.js
    Prolog
    JavaScript
    Java
    C
    Brazilian Portuguese Dialect
    Translation
    Python
  • $45 hourly
    • 5.0/5
    • (8 jobs)
    Software Engineer with 7 years of experience in software architecture, design and development; Experience in designing intuitive, adaptable and robust interfaces; Big Data Visualization and Data Viz enthusiast; Motivated to lead and work with my team encouraging innovation, creativity and productivity; Solid background with Agile (Scrum & Kanban) teams developing robust & highly scalable applications; Fluent English, Native Portuguese (pt-BR);
    Featured Skill HTML
    Bootstrap
    Redux
    Vue.js
    Git
    React
    TypeScript
    JavaScript
    HTML5
    CSS
    D3.js
    CSS 3
    Web Design
    Data Visualization
    SCSS
  • $33 hourly
    • 5.0/5
    • (24 jobs)
    🥇 Expert in: Clean Architecture, Clean Code, JavaScript/TypeScript, Python, Java and Rust. I also have a decent knowledge in C/C++, Dart, Kotlin, C#, Bash, Ruby and many more! 🙋🏻‍♂️ I'm an entrepreneur Senior Expert Software Engineer extremely passionate about engineering software - crafting applications is my profession and hobby. ⭐ I love solving difficult logic problems, I love finding hidden patterns and I love how programming makes it possible to turn abstract stories into working applications. 📚 Besides the fact I'm relatively young, I have almost a decade of experience in the programming field (I started coding when I was 16 years old in 2016), it's a natural part of me. I've already seen it all so far: from well written code bases to the most messy legacy projects. 🎯 It's possible to summarize my expertise by: I can give life to any - LITERALLY ANY - idea by using clean and easy to update code. 🔎 Tired of messy code bases and applications struggling under pressure? Say no more and let's schedule a call, because I'm a specialist in converting anything (including thoughts) into clean, maintainable, and scalable software solutions! 👀 Want to: - Build the next big web thing? Svelte, React or others. - Take your app to mobile? Flutter, Tauri, Kotlin or others. - Craft robust APIs? Node.js, Python, Java, Rust or others. - Make your life easier with automations? Python, Node.js or others. - Convenience with desktop applications? Tauri, Python or others. 🫡 My commitment is to deliver: - Clean and maintainable code. Writing code that is readable, understandable and easy to modify. - Scalable architecture. Designing solutions that can handle increasing complexity, traffic and data loads. - Efficient problem-solving. Applying the best tools and techniques to overcome any technical challenge. - Clear communication. Keeping you informed throughout the development process with regular updates and transparent communication. ❓ How to start? 💬 Write me on Upwork or send the invitation to your job post! I’ll gladly accept your request, offer an intro call to get your idea, requirements, and expectations. 🗝️ Keywords to find me: Software Engineer, Software Architect, Full Stack Developer, Clean Code, Clean Architecture, Web Developer, Mobile Developer, Android Developer, iOS Developer, SaaS Developer, SaaS Engineer, Cloud Developer, Full-Stack Developer, Fullstack Developer, React Developer, Svelte Developer, Node.js Developer, Python Developer, Flutter Developer, API Development, Monolithic Architecture, Microservices Architecture, Cloud Computing (AWS, Azure, GCP), CI/CD, Fintech Software Engineer, Healthcare SaaS Developer, E-commerce Platform Developer, Scalable Applications, User-Friendly Interfaces, Custom SaaS Development, Agile Development, MVP Development, Expert, Senior, Scalability
    Featured Skill HTML
    Google Apps Script
    Google Sheets
    Bash
    Lua
    SQL
    Spring Boot
    Node.js
    CSS
    PHP
    C#
    Python
    Git
    Java
    JavaScript
  • $50 hourly
    • 4.9/5
    • (8 jobs)
    I've been working with IT since 2009 and during my trajectory I realized that the most important thing between a customer and supplier relationship is trust. In these years of experience, I worked in website development, script development for servers and network administration. I also managed several projects in the technology area and that's why I can keep my work organized. At my college, I learned several programming languages, worked with some databases, but my focus is currently developing applications with Bubble.
    Featured Skill HTML
    CSS
    Web Application
    JavaScript
    JSON
    PHP
    MySQL
    API Integration
    App Development
    Responsive Design
  • $40 hourly
    • 5.0/5
    • (2 jobs)
    I'm starting a PhD in Economics at the University of Gothenburg, Sweden, in August. Right now, I've just finished my masters in EPGE/FGV in Rio de Janeiro, Brazil, and I'm looking for RA positions.
    Featured Skill HTML
    LaTeX
    Microeconomics
    Microsoft Office
    Microsoft Visio
    MATLAB
    Economics
    C
    C#
    CSS
    Finance
    Python
    Stata
    R
    Microsoft Excel
  • $67 hourly
    • 5.0/5
    • (22 jobs)
    Hi, I'm Lucas👋 I help startups and businesses launch, automate, and scale with Bubble.io—without wasting months or overspending on dev teams. Whether you need an MVP, a high-performance SaaS product, or a custom internal tool, I build solutions that work fast and last long. Having built apps in finance, marketing, law, design, and real estate, I’m skilled at turning ideas into reliable, scalable products. From MVPs to advanced platforms, I handle the entire product lifecycle—so you can focus on growing your business. ✔ I've helped startups scale to thousands of users & 6-figure revenue ✔ Automated operations for businesses, cutting costs by 50% ✔ Worked with global entrepreneurs to launch high-growth SaaS products ✔ Deep expertise in automation, AI, and integrations that drive business impact ✔ Became the top 1% talent in Upwork within 6 months If you're looking for a well-rounded developer who offers direct communication and gives you the experience of having a technical co-founder by your side, then we’re a perfect fit. 💬 "Smart, fast, and kind. A pleasure to work with!" – Jason 💬 "One of the best Bubble.io developers I’ve worked with!" – Frank To ensure the highest quality, I only take a few clients at a time. If you’re serious about building your app, let’s talk! 📩 Message me or send an invite to discuss your project! 🟢 Currently available | Last updated: Apr 2025
    Featured Skill HTML
    Prototyping
    Figma
    Python
    CSS
    JavaScript
    Web Design
    API
    User-Centered Design
    User Experience
    Web Application
    Web Development
    UX & UI Design
    API Integration
    Bubble.io
  • $180 hourly
    • 5.0/5
    • (6 jobs)
    Hello! I'm Giacomo, a Webflow Expert and seasoned Senior UI/UX Designer with over 10 years of experience crafting visually stunning and functional websites 🚀 ▘Here's what I bring to the table: • Webflow Design & Development (pixel-perfect, responsive CMS sites) • Figma Expertise (Landing Pages design, Design systems, variables, clickable prototypes) • Seamless Figma-to-Webflow conversion • Udesly Proficiency (Webflow to Shopify) • UI/UX Design (Web & Mobile) • High-Fidelity Clickable Prototypes • Finsweet Client-First Expertise (Organizing and scaling your Webflow project) ▘ When you choose to collaborate with me, you get: 🛠 Timely deliveries 🛠 Daily updates 🛠 Transparent communication 🛠 Premium quality work You share your business details and challenges, and I'll ask the right questions to ensure I can provide the help you need. If we're a good match, let's take your project to new heights! Ready to chat?
    Featured Skill HTML
    ProtoPie
    Adobe XD
    Adobe Photoshop
    Adobe Illustrator
    User Interface Design
    CSS
    JavaScript
    User Experience Design
    Landing Page
    Responsive Design
    Web Design
    Web Development
    Figma
    Webflow
  • $19 hourly
    • 4.7/5
    • (11 jobs)
    I have Bacharel’s degree in Computer Science from the best university in Latin America (University of Sao Paulo) and I used to be a Java developer but now I am switching my carrier to become a front-end developer focusing on ReactJS, Javascript, HTML, and CSS. Also, I have more than 7 years of customer support experience. I am a result-oriented professional, a quick learner, and determined to start a new career as a front-end developer.
    Featured Skill HTML
    Brazilian Portuguese Dialect
    CSS
    MongoDB
    JavaScript
    React
    English
    Korean
    Zendesk
  • $9 hourly
    • 5.0/5
    • (6 jobs)
    My name is Fernanda, I'm 24 years old and I have a Major and a Bachelor's Degree in Performing Arts. I'm a native Brazilian Portuguese speaker, with over 3 years of experience in Customer Support for over a year in the e-Commerce market. I was an intern for over 2 years at Colégio Maripuara in São Paulo, teaching Arts and Theatre. With the internship, I developed knowledge with Adobe Photoshop. I also speak English fluently, and I have medium proficiency in Spanish too. I am really looking forward to finding new projects. If you have any doubts about my work and area of proficiency, do not hesitate to contact me!
    Featured Skill HTML
    Helpdesk
    WordPress e-Commerce
    Social Media Website
    Employee Onboarding
    Customer Experience
    Portuguese to English Translation
    Adobe Photoshop
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    I am a developer specializing in artificial intelligence solutions, focused on creating intelligent automation workflows, advanced chatbots, and system integrations for platforms like CRM, ERP, and financial systems. With experience in tools such as n8n, LangChain, Make/Zapier, Supabase, and Botpress, I help businesses optimize processes, reduce costs, and improve operational efficiency. My expertise includes: - Developing custom AI Agents and AI Workflows - Automating repetitive tasks with smart workflows - Integrating APIs between systems for seamless data synchronization - Creating AI-powered conversational chatbots - Automating reports and analytics for data-driven decision-making I am committed to delivering tailored solutions that drive your business growth. If you need intelligent automation or system integration, I’m here to help!
    Featured Skill HTML
    Email Communication
    Web Development
    Product Knowledge
    Communication Etiquette
    3D Design
    AI Agent Development
    n8n
    Social Media Chatbot
    GPT Chatbot
    Moderation Chatbot
    Shopping Chatbot
    Chatbot Integration
    Lead Generation Chatbot
    Customer Service Chatbot
    Finance & Banking Chatbot
    Productivity Chatbot
    Natural Language Generation
    Natural Language Processing
    Scheduling & Assisting Chatbot
    Chatbot Development
  • $20 hourly
    • 4.6/5
    • (4 jobs)
    12+years of experience in customer service, customer support, and technical support. Bilingual (fluent in English and Portuguese), analytical and problem solver profile. Basic Italian, Japanese, French and intermediate Spanish Experienced user of the following CRM tools: * Helpshift * Zendesk * Dixa * iLog (AppleCare CRM tool) * Salesforce * Freshdesk * Radix (HP old CRM) * HugMe Experienced user of the SaaS Office 365* Experienced System administrator of Windows server* Experienced user of data analysis platforms, such as: * Power BI Experienced user of cloud-computing platforms, such as: * Snowflake * Amazon AWS * Node.js Technician knowledge of the systems: * Android * iOS, * MacOS * WatchOS * Windows (98 and onwards, always updated) Technician level of knowledge in lan, hardware and general IT troubleshooting* Perks: * Self-taught * Outside of the box thinking * Easygoing Achievements: 2020 Q1 and Q3 Top performer - 5CA / Epic Games Top 10 C-Sat among global agents for 3 consecutive months - AppleCare - 2016
    Featured Skill HTML
    SQL
    DevOps
    Customer Support
    System Configuration
    Communication Etiquette
    Hardware Troubleshooting
    Technical Support
    Microsoft Active Directory
    Python Script
    Product Knowledge
    Web Development
    Email Support
    Zendesk
    English
  • $25 hourly
    • 5.0/5
    • (1 job)
    If you're looking for a professional WordPress Developer who can bring your vision to life with responsive and interactive designs, you've come to the right place. I specialize in creating high-quality WordPress websites that combine flawless functionality with stunning visuals. Whether you need a custom design crafted from scratch or a seamless conversion of Figma, PSD, XD, AI, PNG, or JPG files into a fully responsive website, I ensure that every project is executed with precision, delivering results that perfectly align with your goals and expectations. Features ✅ WordPress Website Design / Wix Website Design ✅ Elementor Expert ✅ Figma/Sketch/PSD/AI/XD to WordPress or Wix ✅ Fully Responsive (Cross-browser/platform) and Mobile-Friendly ✅ WordPress Speed Optimization, Performance Improvement, and SEO ✅ Any WordPress Theme customization (Avada, Divi, Genesis, StudioPress, Astra) ✅ e-Commerce setup/customization (Woocommerce, Shopify, Nuvemshop) ✅ Setup Payment Gateway (Visa, Master, PayPal, Klarna, Square, Stripe) ✅ Membership Plugin (Memberpress, Membermouse, Learndash, ActiveMember360) ✅ Page Builder (Thrive Architect, Elementor Pro, Bricks Builder, Divi Builder, Visual Composer, Beaver Builder) ✅ Slider Plugin (Slider Revolution, Smart Slider 3, LayerSlider) ✅ Contact Form Plugin (Contact Form 7, WPForms, Ninja Forms, Gravity Forms) ✅ Others (ACF, Codestar, CMB2, Underscoresme) ✅ Speed Optimization (WP Rocket, W3 Total Cache, WP Super Cache, Sucuri Firewall) ✅ Higher Level of Security ✅ Social Media Integration ✅ Google Maps Integration ✅ Mailchimp Integration ✅ Facebook Pixel Integration ✅ Booking, Appointment, Calendar, Event Integration Why Should you buy? 😄 Satisfied Clients: A long list of happy clients who trust my expertise. 🌟 7+ Years of Experience: Extensive experience across various industries. ⏳ Fast Turnaround: Efficient project delivery without compromising quality. 📞 Excellent Communication: Clear, responsive, and ongoing communication. 🚀 I am responsible, punctual, and creative. I have a genuine passion for my work and will do my utmost to exceed your expectations. What do my clients say about me? 🗣️ - Marcelo Almeida (Pocket Creative) "Trust is the word that defines working with João." 🗣️ - Camila Surian (Cleck) "Incredible sites with fast deliveries and always in line with customer requests. Super recommended!." 🗣️ - Patricia Knebel (Splash Lab) "High level of technical knowledge, professionalism, and superpartners in the development of projects. I recommend!" Check the portfolio section to see some of my work. Let's get started? 😊
    Featured Skill HTML
    jQuery
    JavaScript
    CSS
    Web Design
    Web Development
    Wix
    Figma
    Elementor
    WordPress
    Project Management
  • $35 hourly
    • 5.0/5
    • (3 jobs)
    I'm able to understand and apply Data Science and Technology to business and research projects. For the last couple of years I've been building and deploying data-driven products, and bridging the gap between business and technical areas, due to my generalist and interdisciplinary profile. My efficient communication skills allow me to understand and address stakeholders' needs, which is key to success for data science & machine learning projects. Selected Completed Projects: Predictive Model for Churn in Health Insurance Plans - 2020 Technologies: KNIME Analytics Platform, R, Docker, Metabase, PostgreSQL. A Health Insurance provider with tens of thousands of individual clients needs to be more assertive in customer retention efforts. I’m the team leader of an ongoing project to use Machine Learning to predict the probability of churn for each contract based on a history of 3.5 years of interactions and dozens of variables. We’ve explored and created new variables, selecting them by their relation to the target. The model was built and we deployed it as a web application running in docker inside the client premises. The probability of churn is currently being used by the customer retention team in production. I was the lead developer for this project. Optimization of Mental Health Surveys - 2020 Technology: KNIME Analytics Platform. The client wanted to decrease the burden of respondents by reducing the number of questions in surveys used to diagnose mental illness in corporate workers. I tested several Machine Learning models to predict the diagnostics based on partly completed surveys, detecting which questions could be removed without losing substantial accuracy compared to the completed survey. It was possible to reduce the number of questions by 20% and still have around 95% of accuracy on the diagnostic.
    Featured Skill HTML
    Database Design
    Data Interpretation
    Data Analysis
    Ruby on Rails
    CSS
    KNIME
    SQL
    Data Science
    Machine Learning
    Python
    Deep Learning
  • $5 hourly
    • 5.0/5
    • (2 jobs)
    Mobile and Frontend Developer with extensive experience in mobile and web applications. Proficient in ReactJS, JavaScript, and Flutter, specializing in integrating applications with REST APIs, Firebase, and AWS. Known for adaptability, attention to detail, and a passion for clean code. Experienced in Kanban project management and skilled in Gitflow for effective version control.
    Featured Skill HTML
    Android
    React Native
    Flutter Stack
    Flutter
    Mobile App Development
    Web Development
    Web Application
    Sass
    JavaScript
    React
    CSS 3
    Vue.js
    CSS
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I’m a developer with experience in building e-commerce for small, medium and big sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help! I’m experienced in HTML, CSS, JavaScript, React, Next. I’ll fully project manage your brief from start to finish.
    Featured Skill HTML
    TypeScript
    Scrum
    Front-End Development
    Azure DevOps
    RESTful API
    Next.js
    SCSS
    React Native
    Kanban Methodology
    React
    jQuery
    Node.js
    CSS
    JavaScript
  • $15 hourly
    • 5.0/5
    • (4 jobs)
    Hi! I'm Renan Aba, a front-end developer with experience in modern web applications, HTML, CSS, Javascript, React, Typescript, SQL and Git/Github. I'm a great at problem-solving and debugging, I pay a lot of attention to details and quality. I can deliver you a great, modern and functional website with maximum professionalism.
    Featured Skill HTML
    Responsive Design
    Front-End Development
    Landing Page
    CSS
    Web Development
    JavaScript
    Web Design
  • $40 hourly
    • 0.0/5
    • (2 jobs)
    With over 7 years of experience in Drupal development (versions 7, 8, 9, 10 and 11), I am a full-stack specialist proficient in both front-end and back-end development, as well as architectural solutions for complex projects. My expertise spans a wide range of environments, from working within agile teams to freelancing for independent clients and companies. I have successfully delivered a variety of projects, from simple informational websites to intricate systems that require seamless integration with external services through APIs. My work often includes custom module and theme development, as well as optimizing solutions for performance and scalability. Additionally, I have extensive experience in reviewing and performing quality assurance on code and solutions created by peers, ensuring high standards of quality and reliability. Technologies I am proficient in include: Front-end: HTML, CSS, JavaScript, jQuery, React Back-end: PHP, Symfony, MySQL Tools & Frameworks: Drush, Composer, PHPUnit, Git, Docker, Acquia Site Studio, Acquia Cloud, Pantheon I am passionate about creating robust and efficient solutions that meet client needs and exceed expectations.
    Featured Skill HTML
    Jira
    jQuery
    PHPUnit
    Symfony
    API Development
    Back-End Development
    Front-End Development
    JavaScript
    Web Development
    CSS 3
    MySQL
    PHP
    Drupal
    Docker
  • $30 hourly
    • 5.0/5
    • (7 jobs)
    Experienced Systems Engineer and Administrator. Passionate about all things Cloud and DevOps. I enjoy leveraging technology to solve business problems and streamline operations. My expertise lies in systems engineering and cloud operations, where I focus on integrating systems and building automation. With a solid foundation in administering and supporting cloud and on-prem environments, I have sharpened critical thinking and troubleshooting skills to resolve complex issues efficiently. Specialties: ● Systems Engineering ● Cloud Operations ● Systems Administration ● IT Ops & Support Key Technologies: ● Cloud: AWS, GCP, Terraform Cloud with GitOps ● SysAdmin: Okta, Google Workspace, Active Directory, Jira, Slack, SCCM, Linux (Ubuntu) ● IAM: Okta, SailPoint, Active Directory, LDAP ● SSO Integrations: SAML, OpenID Connect, SCIM ● Networking: VPCs, VPNs, Load Balancers, and related concepts ● APIs / Automation: Python, OpenAI, Zapier, Google Apps Manager (GAM), and more ● Web Development: JavaScript/React, Next.js
    Featured Skill HTML
    Windows 10 Administration
    Amazon Web Services
    TypeScript
    Office 365
    CSS
    Troubleshooting
    MongoDB
    ITIL
    JavaScript
    React
    MySQL
  • $35 hourly
    • 0.0/5
    • (1 job)
    Experienced Digital Marketing Manager Specializing in Email Marketing Hey there! Chad Bittle here - I'm an experienced digital marketing manager with a strong passion for audience engagement, brand voice and identity. I've built and lead Email Marketing Departments in the marketing agency world, and am spreading my wings to take on my own projects. My background encompasses both client relations and strategic planning, ensuring that every campaign I manage aligns perfectly with the brand's unique voice and goals. Why Choose Me? Email Marketing Expertise: I specialize in email marketing and have established partnerships with leading platforms like MailChimp and Klaviyo. I can help your organization maximize the effectiveness of your email campaigns, from strategy development to execution. Client-Centric Approach: My approach is always client-first. I take the time to understand your needs and tailor strategies that resonate with your audience, driving engagement and conversions. Strategic Planning: Whether it's internal strategizing, planning, or development, I bring a strategic mindset to every project, ensuring that all efforts are cohesive and goal-oriented. Services I Offer: ESP Migration: Need to migrate to a new email service provider? I've got you covered, ensuring a smooth and seamless transition. Automation and Flow Building: Customers not going through the funnel as smoothly as you'd like? Let me build (or rebuild) your automations to ensure a smooth customer journey. Template Design: Looking to refresh your email templates to better match your brand identity? Let's collaborate to create designs that stand out and engage your audience. Email Marketing Strategy: Searching for a consultant to help you develop a robust email marketing strategy? I'm your guy! I can provide insights and strategies to optimize your email marketing efforts for maximum impact. Let's Connect! Feel free to message me if you have any questions or want to discuss your project in-depth. I look forward to helping you elevate your email marketing and achieve your business goals.
    Featured Skill HTML
    Platform Migration
    Email Marketing
    Copywriting
    Klaviyo
    Email Design
    Email Marketing Strategy
    Google Ads
    Analytics
    Digital Marketing
    Email
    Sendinblue
    Mailchimp
  • $30 hourly
    • 5.0/5
    • (4 jobs)
    I'm UX/ UI designer with a great passion to my work, I lead end-to-end-user-centered-driven process, from user research to the final product - I can help you throughout the whole process! My main goal is to create attractive and user-friendly interfaces and find creative design solutions for your business and users! 👩🏻‍💻Say goodbye to your struggle designing:👩🏻‍💻 - Landing page - Responsive website/ e-commerce (web and mobile) - App (Web/ Mobile/ Tablet/ Smartwatch) - Design System - Marketing Emails I'll help you! 💡The Design process:💡 1. Briefing and discussion 2. Research (User research, Competitor analysis, Brand research, etc) 3. Design Concept and Wireframe 4. Prototype 5. Revision 6.Delivery 💻 Softwares and Coding 💻 - Figma -Adobe XD -Adobe Illustrator -Adobe Photoshop -Adobe After Effects -HTML -CSS 👩🏻‍💻 Get to know me 👩🏻‍💻 As a graduated in "Visual Design with emphasis on Marketing", I've gained experience in multiple areas such as marketing, ux design, product design, typography design, product design, ergonomics, branding, editorial design, and more. My passion for product design started when I designed the university app as my final project, which eventually led me to my first job as a UX Designer at Ericsson. While at Ericsson, I had the opportunity to work with clients such as Claro, a leading Brazilian cellphone service company, and contributed to the development of an app for their new product, "Claro Flex." Later, I joined Globant where I worked with Autodesk to develop their Design System, which is now used across multiple software platforms. Additionally, I played a key role in the development of an internal app called "Near By," which helped connect Globant employees with each other during the COVID-19 pandemic. I have also studied User Research at the Parsons New School of Design, where I gained expertise in interpreting both user needs and project requirements. Nowadays I am developing my coding skills so I can the designs we build alive! I look foward to building your project together! 🤗
    Featured Skill HTML
    Design & Usability Research
    XD
    Website Prototyping
    Design Thinking
    Adobe Inc.
    Wireframe
    Adobe InDesign
    Figma
    CSS
    Adobe Illustrator
    Adobe Photoshop
    Adobe XD
    Prototyping
  • $60 hourly
    • 0.0/5
    • (1 job)
    10+ years of experience actively working with digital marketing, SEO and Performance teams; Hands-on and leadership profile, use of agile methodologies in SEO, product and development teams; Experience managing technical SEO projects, as well as content SEO, YouTube optimization and ASO; Data mindset to explore opportunities and quick wins; Experience managing teams and developing people careers on marketing and SEO.
    Featured Skill HTML
    Website Optimization
    YouTube SEO
    App Store Optimization
    SEO Content
    Video SEO
    Search Engine Optimization
    SEO Performance
    Content SEO
    On-Page SEO
    SEO Keyword Research
    SEO Strategy
    SEO Audit
    Ahrefs
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