Hire the best HTML5 Developers in Seattle, WA

Check out HTML5 Developers in Seattle, WA with the skills you need for your next job.
Clients rate HTML5 developers
Rating is 4.8 out of 5.
4.8/5
based on 170 client reviews
  • $79 hourly
    ✅ Upwork-Ranked Top 1% | ✅ Expert-Vetted | ✅ Google Certified SEO & Digital Marketing Strategy +Implementation. Ranking in the top 1% of Upwork talent. ⛔ Many claim to be Expert-Vetted ( Top 1%). I provide proof via screenshots showing my status in the portfolio section below. If you're not an Enterprise client and unable to see the badges for yourself, I would strongly suggest seeking proof of such statements, as this will help determine the integrity, ethics, and quality of talent you're working with. "Marilyn is an absolute professional when it comes to digital marketing and her work ethic is top-notch. 10/10 would recommend." With a comprehensive understanding of Google algorithms and how Panda, Penguin, Hummingbird, Mobilegeddon, and RankBrain updates have affected websites and their ranking factors. I'm able to quickly and effectively diagnose penalties and repair rankings. My custom-tailored digital strategies combine my skills in copywriting, content creation, white-hat SEO, web design, branding, and creative marketing to drive maximum impact and deliver long-lasting cumulative results for your business. DYNAMIC IMPLEMENTATION & RESULTS: Unlike many who focus solely on strategy, I prioritize real-world execution. Do you need more than just a strategist? My approach is hands-on, ensuring that the digital marketing and social media campaigns I devise are not only planned but also meticulously executed and managed to convert traffic into paying customers effectively. I offer the following services: SEO AUDITING I will deploy my in-depth technical and analytic skills to your website foundation, metadata, and social profiles. I will examine your overall visibility and authority, NAP citations, keywords, SERPs positions, and competition. You will receive a complete report with a full overview of your project's next steps. FULLY MANAGED SEO I am always up to date on SEO best practices and marketing trends and am proactive in my SEO efforts. I will continually assess and tweak as necessary to obtain and maintain optimal results. From on & off-page SEO, social media, content writing/creation, and online marketing, I’ve got you covered! (SELECT PROJECTS ONLY) DIGITAL MARKETING STRATEGY I will provide custom-tailored strategies for your specific website and marketing personas. My personalized approach to each project nets results because my strategies shine in their ability to outrank the competition. COPYWRITING Using my experience and thorough understanding of search engine indexing, I will create search engine-friendly content that is both engaging and optimized for maximum SEO and exposure. More importantly, I have the expertise to create content and calls to action that convert! WEB DESIGN I specialize in responsive web design and redesign services. My design aesthetic is stunning and modern looks that are both visually appealing and mobile-friendly. I will build your site with proper structuring, architecture, and metadata. Your site will be optimized according to Google standards and built to maximize user experience, engagement, and conversions. AI AUTOMATION - customer support (chatbot - voice/phone agent) - sales (email outbound - phone outbound) - lead reactivation, sms/email messages and follow up system for nurturing and closing calls on existing leads Company internal automations Company GPT: GPT trained on company wide knowledge base, helps with employee/client onboarding, speeds up team communication and Q&A. Email autoresponder, follow ups, invoices, document organization. Custom Application development: Web apps/Mobile apps: Company dashboards, employee management, payments, custom request ⚠️ Side Note: Anyone who promises to rank your site or page in position 1-3 in search is engaging in unethical tactics that mask their lack of SEO knowledge & technical skills. NO ONE can guarantee a #1 position. If they do, they are either scamming you or intending to employ black-hat tactics, which will demolish your future site rankings. Regardless of what you may have been told or read, it takes months to achieve and/or restore top organic rankings and increase conversions.
    Featured Skill HTML5
    PPC Campaign Setup & Management
    Copywriting
    Digital Marketing
    Social Media Optimization
    WordPress
    Social Media Management
    Responsive Design
    Copy Editing
    Press Release
    SEO Strategy
    Google Ads
    Google Analytics
    Search Engine Optimization
    Marketing Strategy
  • $30 hourly
    I create Websites that helps my client's to reach their goals. I do not design for the sake of beauty and nice looking, But rather with strategy, user centered, conversion and achieve business objectives. My UI/UX expertise will help the website visitor to easily and convinently find what they are looking for, whether that's making a purchase, scheduling an appointment, or whatever their goal of being there is, A user will not stay more than a minute if they realize the website is really hard to get the information they need. I will not just put all my focus on the user of the website, I will also make sure that the business objective is also reached for the creator of the website, Whether it is more sell, user gorw, or get to new auidience. With over 5 years of experience, I am expert in UX/UI, Webflow, WordPress, HTML/CSS/JS and other modern web technologies, I build websites that are not only visually appealing but also fast, responsive, SEO optimized, accessible across all devices, Clean code and I will setup the project correctly from the start so in the future any other developer can work on it with ease. My past clients range from startups to multinational corporations across diverse industries. Facts about me: ✅ Top Rated for years ✅ 100% Job Success for years ✅ 5 star clients review ✅ 5+ years experience ✅ 100% Long-term Highlighted Skills: UI/UX Design | Web Design | Responsive Design | UX Design | UI design | User experience design | Interaction design | Webflow development | Figma to Webflow | Website Redesign | Landing Page Design | Clean HTML/CSS/JS Looking forward to working with you :)
    Featured Skill HTML5
    Blog
    Content Management System
    Responsive Design
    Webflow
    CSS 3
    Figma
    JavaScript
    HTML
    Web Design
    CSS
  • $85 hourly
    Hi! I'm a professional full stack software engineer with ample experience in various tech companies. During my tenure in tech, I have-- Helped ultra small companies get products off the ground Worked with start-ups to scale products with demand Been an engineer in the world's largest cloud service provider--AWS. Web applications are my speciality. While working at Amazon, I helped create a brand new product which launched with the ability to scale to millions of users. I use TypeScript every day to create cloud based software, both user interfaces and scalable infrastructure. I'm comfortable across the stack, but especially enjoy building a user experience focused frontend. That being said, not every project needs to be gargantuan. I also have a passion for automation and efficiency and I love helping small businesses grow into custom software solutions. If you're just getting started and need some technical expertise, or if your business has outgrown the off-the-shelf tools that have gotten you this far, let's chat!
    Featured Skill HTML5
    Sequelize
    Serverless Computing
    PostgreSQL Programming
    API Development
    Web Application
    GraphQL
    Amazon Web Services
    TypeScript
    Git
    CSS 3
    React
    Node.js
    JavaScript
  • $100 hourly
    I'm a full stack developer with over 10 years of experience building websites and web applications. l work hard to bring big projects to life within a reasonable budget and time frame. I specialize in taking complex processes and distilling them down into simple and straightforward UI and UX. I work with digital marketing, design and media companies in order to bring a wide range of client projects to life. Together with my clients, we've have built and customized hundreds of websites for restaurants, retailers (online and brick and mortar), medical offices, consultants, artists, CROS, science labs, health industry sites (with HIPAA compliancy), event websites and more. I've helped them grow their business as well with consulting and additional developer resources. I build scalable sites and applications with Wordpress and/or React and Node but also have experience with Drupal/Composer as well as Shopify, Wix and Hubspot. I have experience with AWS, EC2, RDS, Cloudflare, Route53 and more. I have experience with a with a wide variety of APIs, HIPAA compliant API's as well as building custom APIs. I have experience with data aggregation across varied sources via web scraper. Some of my more interesting left-field applications I've built have included a Node/React project that streamlines the CRISPR design process for a lab at the University of Washington, and a Node/React application that summarized details on potential real estate opportunities by location. I offer my hourly consulting and development services on Upwork, but you can see more on our site: sounddevelopment.co I'm recently back on Upwork because I'm looking to expand my client list and help more companies grow without needing to grow their development budget. If that sounds interesting to you, please send me a message.
    Featured Skill HTML5
    Responsive Design
    Node.js
    AngularJS
    WordPress Plugin
    React
    CSS
    JavaScript
    Project Management
    WordPress Theme
  • $45 hourly
    I'm a web developer with 4 years of experience. I love building beautiful websites that reflect the needs and personalities of my clients. I build web applications from scratch using HTML, CSS, Javascript, and various frameworks. All of my work is pixel-perfect on all screens with optimized load-times. I specialize in small-to-medium size business brand development, SEO/SEM, and content creation/management. I am very responsive, a clear communicator, set clear deadlines and get things done. I love what I do! I help small businesses grow and succeed. Skills: -Website Development/Design -Site Layout -UI/UX review and recommendations -Content Creation/Management -Logo Design -Social Media Marketing -Content Writing -Google Analytics -SEO -SEM -Mobile First Design -Full Stack Development -Site Migration -Photo Editing What can I do for you? —Matthew Dwyer
    Featured Skill HTML5
    ExpressJS
    Bootstrap
    Git
    CSS 3
    ECMAScript 6
    GitHub
    Sass
    Brand Management
    JavaScript
    Node.js
    Cloudflare
    Heroku
    Brand Development
    Search Engine Optimization
  • $35 hourly
    Hello! I am a web developer leveraging a background in music production to exercise critical thinking, creativity and anticipation of user needs. My knowledge and experience in web development ensures both a smooth user experience and clean, concise code. Working on projects asynchronously with diverse teams has strengthened my skills in communication and collaboration. Using these strengths, I strive to build accessible, intuitive, and responsive web apps for a far-reaching audience.
    Featured Skill HTML5
    API Development
    RESTful API
    GitHub
    NoSQL Database
    Web Development
    CSS
    Node.js
    JavaScript
    Responsive Design
    MySQL
    MongoDB
    React
    Bootstrap
    jQuery
  • $40 hourly
    SUMMARY Technical Program Manager and Software Developer with 7 years of experience in instructional roles, program management, and an expert in teaching innovative techniques. Demonstrates success in cultivating engaging and effective instructional environments, and driving student achievement. Proficient in Python, Flask, Django, JavaScript, React, Svelte, and HTML. Eager to contribute to a mission-driven tech organization, leveraging my expertise in full stack development to further its impact. PROJECTS Tag Recovery Extension Chrome Web Store/Mozilla Add-On * Currently serving 311 users
    Featured Skill HTML5
    ExpressJS
    CSS 3
    Svelte
    Flask
    SQL
    NoSQL Database
    Node.js
    Django
    Browser Extension
    React
    JavaScript
    Web Application
    Python
  • $100 hourly
    My name is Loren Harris, I graduated from Central Washington University. I studied Computer Science with a specialization in AI, I also have a double minor in math and physics. I would be just at home creating genetic algorithms, doing algorithm optimization, or analyzing neural networks, but web development is what caught on. I have been self taught in PHP and MySQL for over 15 years, and learned and used many associated languages, and have done many projects from the simple to the complex. I have done work for paying customers, friends, myself, contract work, and full time.
    Featured Skill HTML5
    Game Development
    Custom PHP
    Web Crawling
    CSS 3
    JavaScript
    MySQL
    PHP
  • $55 hourly
    Hello! I am a designer with a Bachelor's in Painting from the Rhode Island School of Design. My formal training in traditional oil painting inform my color choices, as well as my skill in composition and use of texture. I attended the Startup Institute's inaugural program in the summer of 2012, focusing in the Product Design track. There I learned the basic principles of UI/UX design and testing, product iteration, and SCRUM. I am excited to help you meet your business goals through great design. Thank you for your interest, and have a beautiful day.
    Featured Skill HTML5
    Email Marketing
    Klaviyo
    Mailchimp
    Icon Design
    WordPress
    Adobe Photoshop
    Squarespace
    Shopify
    CSS 3
    Adobe Illustrator
  • $95 hourly
    I'm a Senior Web & Software Developer with over five years of experience with developing on various platforms and across multiple languages. My development experience includes PHP (including various frameworks such as Laravel and Zend), APEX (Salesforce), Visualforce (Salesforce), HTML5, CSS3, Python, Ruby, Javascript (including jQuery), among others. I've also worked extensively with the Genesis Framework, a WordPress framework, when I worked with the government of New York. I have worked professionally with Linux/Unix-based systems and BSD-based systems for eight years. Part of my career path includes working for Linode, an infrastructure company based in New Jersey, as a senior backup systems engineer. Further experience includes Salesforce development and mobile application development. I've worked with various APIs (such as Stripe, PayPal, and Google's APIs) as well. In my time as a Systems Engineer for a web hosting company, I've worked with DirectAdmin, cPanel, and Plesk at an administrative level (root).
    Featured Skill HTML5
    Web Host Manager
    PSD to WordPress
    Linux System Administration
    CSS 3
    WordPress e-Commerce
    PSD to HTML
    Red Hat Enterprise Linux
    WordPress
    PHP
  • $105 hourly
    Digital Transformation Management eSign DocuSign Integration Adobe Sign SaaS Implementations | Technical Success | Professional Services Experience includes providing Client Success, Technical Account Management & Professional Services to pre-sales engineering consultation, solutions architecture, best practices, BPI, compliance, go-live, adoption, training & on-going support & account management. Typical client portfolios have included Government Organizations (local, state & federal), SMB & Fortune 100 & 500 companies all of whom required a trusted technical advisor and/or SME to provide consultation, solutions and support for complex enterprise proprietary software and custom partner solutions and integration. eSignature | Digital Mortgage | Digital Asset Management | eVault In-depth experience in design/customization, implementation, support documentation and training of consumer lending including loan origination, automated loan decisioning and the complete Digital Mortgage life-cycle from implementing each of the following either individually or as a complete solution, robust customizable LOS(s), electronic signature, eNotary, vaulting and electronic asset management.
    Featured Skill HTML5
    PHP
    JavaScript
    Node.js
    RESTful Architecture
    ExpressJS
    SOAP
    CSS
    React
    Salesforce CRM
    API
    Technical Documentation
    Angular
    DocuSign
  • $35 hourly
    I'm a strong JavaScript/TypeScript/Python developer. I have extensive experience building a solid backend+setting up a database, and I'm just as comfortable creating a modern, responsive website. I worked for Microsoft for 5 years, and as a Senior Engineer+tech lead for the fintech company Lively HSA. I also love writing utility scripts and making internal desktop apps, especially converting data files from one format to another. I can contribute to your project and help bring your ideas to life!
    Featured Skill HTML5
    Audio Editing
    Video Editing
    Database Design
    C++
    Linux
    Node.js
    React
    Google Cloud Platform
    JavaScript
    CSS 3
    Java
    C#
    Python
    Amazon Web Services
  • $35 hourly
    I am a longtime fan of syntax, grammar, and linguistics, experienced in writing and editing a variety of content across many different topics and avenues. Whether you are looking to edit pre-existing work or starting from scratch, I'm excited to work with you! I prefer a collaborative approach to projects with efficient and responsive communication. I firmly believe editors are not only there to edit, but also to be an advocate and support system. Armed with a B.A. in English and work experience ranging from copywriting to content creation to creative writing, I am ready to put my skills to use for my clients. Let's get to it.
    Featured Skill HTML5
    SEO Content
    Research Methods
    CSS
    Figma
    Microsoft PowerPoint
    Microsoft Word
    Technical Editing
    UI/UX Prototyping
    Editing & Proofreading
    Document Formatting
    Grammar & Syntax Review
    Copy Editing
  • $50 hourly
    Motivated Web Developer with a passion for creating engaging and visually compelling digital experiences. Experienced in responsive design, instructional content development, and user engagement strategies. Skilled in integrating multimedia elements and interactive components to enhance learning outcomes and user experiences. Adept at collaborating with teams to develop tailored digital solutions that align with strategic objectives.
    Featured Skill HTML5
    Accessibility Testing
    SEO Audit
    Adobe Creative Suite
    Figma
    Git
    Amazon Web Services
    MongoDB
    SQL
    ExpressJS
    Node.js
    Responsive Design
    React
    JavaScript
    CSS 3
  • $50 hourly
    I am a front-end and back-end software engineer, specializing in small-business websites and small-scale web applications. I especially enjoy building React, Wordpress, and Jekyll websites. I also help optimize websites for SEO and marketing.
    Featured Skill HTML5
    NodeJS Framework
    Jekyll
    Search Engine Optimization
    React
    AngularJS
    Node.js
    Flask
    Python
    ExpressJS
    WordPress
    JavaScript
    CSS 3
    TypeScript
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