Name: JavaScript developers
Brand: Upwork
Rating: 4.8 (10718 reviews)

Check out JavaScript Developers in the United States with the skills you need for your next job.

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Clients rate JavaScript developers

4.8/5

based on 10,718 client reviews

$40 hourly
- 5.0/5
- (30 jobs)
**With over 5 years of Full Stack development experience, I'm your go-to UI design and development expert.** My Pledge: You're not just getting a developer; you're getting a partner committed to your project's success. Whether you need a tailor-made React-powered application or a user-friendly WordPress site, I've got your back. Your expectations? I'm here to exceed them. Need help designing? I'll use tools like Figma, Photoshop, and Illustrator to make your website stand out from all the rest. Development Technologies: -- HTML | React | Next.js | JavaScript | Typescript | Node | Python Design: -- Tailwind | Boostrap | CSS | Sass | Photoshop | Figma CMS tech: - -WordPress | Sanity.io | Strapi | Gatsby AI tools: -- GPT 4 | GPT 3.5 | DALL-E | OpenAI How Can I Help You Today? The journey begins with understanding your unique needs and requirements. Let's chat about your project, and together, we'll create something remarkable. Feel free to reach out!

JavaScript
TypeScript
AI Chatbot
OpenAI Inc.
HTML
React
Web Development
Search Engine Optimization
Elementor
Next.js
Bootstrap
Tailwind CSS
Website
CSS
WordPress
$100 hourly
- 5.0/5
- (25 jobs)
Hi! I'm just your average senior software whiz with a ton of hands-on know-how. Throughout my career journey, I've been the captain of some pretty massive squads and cooked up seriously scalable stuff using all the cool tech toys like: + Python (with Flask and Django) + JS (with React and Angular) + C++ + Java (with struts & spring). + MySQL + AWS/GCP + Stripe/Paypal/Auth.net By the way, my work clock follows Eastern Standard Time (EST), and I'm chilling right here in the good ole US of A ;)

JavaScript
C
MySQL Programming
jQuery
CSS
C++
HTML5
Java
Python
PHP
$100 hourly
- 5.0/5
- (64 jobs)
UPWORK TOP-RATED WordPress website designer & developer with skills in HTML5, CSS3, JavaScript, PHP, jQuery, UI/UX design and fully responsive development. I build premium, custom-theme WordPress websites for large corporations, SMBs, nonprofits and funded startups across various industries. I consider my skillset rare in that I am equally strong in three critical areas: UI/UX/website design, WordPress development and Search Engine Optimization (SEO). The websites and web apps I design are modern, with friendly and highly branded experiences. I use Adobe XD to design your website prototype for both desktop and mobile and work with you, iteratively, until we achieve an aesthetic and user-experience you're proud to present. Once we complete your design phase, we move onto development. All of the websites I build on WordPress originate from a custom theme (hand-written HTML, PHP, CSS, JS) with the use of Advanced Custom Fields (ACF) for content management. This ensures your site is safe & easy to update, without the bloat of too many plugins or a clunky visual builder. When it comes to SEO, I develop a strategy specific to your type of business and conversion goals. We start with an SEO audit to clean up any technical issues that could be preventing Google from crawling your site content optimally and fix the issues so your site health is 90%+ at any given time. I will then help you devise a content strategy to target the keywords most important to you—after we've conducted thorough keyword research and competitor benchmarking, of course! Beyond my three main service areas of design, development and SEO, I design logos/brands and various marketing collateral. If you're a business in need of a premium web presence, please feel free to reach out or send me an invitation. I'd love to learn more about your organization and your digital marketing & WordPress website design/development needs!

JavaScript
Conversion Rate Optimization
Adobe XD
WordPress Theme
UX & UI
WordPress Development
CSS
PHP
Custom Web Design
Web Development
HTML
Web Design
Adobe Illustrator
Search Engine Optimization
WordPress
$38 hourly
- 5.0/5
- (19 jobs)
Logan A. is a full-stack web developer with a background in graphic design and sales. Additionally, he has shown excellence in customer communications and management of high-risk customer-facing scenarios through his Stevie Award-winning work at Google Fiber and Vacasa. He has an Associate's of General Arts from Idaho State University and studied software engineering at Chegg's Thinkful boot camp. He is employed as a software engineer at Builder.io. Front-End: JavaScript, HTML5, CSS, Bootstrap, React & JSX, Webflow, Material.io Back-End: Node.js, Express.js, MySQL, PHP, Python 3.7 Additional Technical Skills: Node Package Manager, Git & GitHub, Postman, Vercel, Adobe CC, Google Apps Scripts, CINEMA 4D, ZBrush, Affinity Suite, macOS & Windows

JavaScript
Web Development
Maxon Cinema 4D
Digital Illustration
Branding
Calligraphy
Adobe Photoshop
Logo Design
Vector Graphic
Lettering
Adobe Illustrator
$75 hourly
- 4.7/5
- (2 jobs)
🚀 Kristen Ellerbe Taylor - Full Stack Product Manager and Agile Coach 👋 I'm Kristen, a former back-end engineer. seasoned Full-Stack Product Manager, and Agile Coach. I am passionate about driving innovation, empowering people to build high-impact products, and transforming teams to be quick, smarter, and better. 🌟 Strengths and Skills: Full Stack Product Management: From ideation to execution, I bring a holistic approach to product development, ensuring a seamless blend of user-centric design, technical feasibility, and business viability. Agile Mastery: I'm your Agile spirit guide, moving storming teams quickly to high-performing self-sufficiency through successful Agile adoption, empowering them to deliver value-creating software. Strategic Vision: I've honed my strategic thinking through years of experience, helping companies find their North Star and charting a course to get there. Data-Driven Decision Making: My analytical mind thrives on data, turning it into actionable insights to drive product and team improvements. 🏆 Accomplishments and Projects: 🏆 Product-Market Fit Champion: Led a Series A EdTech curriculum company through a journey to find its product-market fit, resulting in exponential growth and investor confidence. Agile Transformation Catalyst: Spearheaded Agile transformations in various organizations, elevating teams to high-functioning units delivering 90%+ on-time monthly releases. Cost-Savings Superhero: Slashed cloud-based expenditures by $2.5M annually by optimizing infrastructure and streamlining cloud services. Engineering Foundation: Armed with practical engineering experience on tiger teams, back-end, full-stack, and customer-facing teams. I have a strong technical foundation to bridge the gap between engineering and product teams. 🎯 Education: 🎯 B.S. Electrical Engineering from North Carolina State University, Raleigh, NC (2013) Ready to collaborate on your next exciting project? Let's chat and transform your ideas into reality!

JavaScript
User Acceptance Testing
Software Debugging
Requirement Analysis
Database Design
API Documentation
Backlog Grooming
Technical Writing
Python
SQL
MongoDB
$60 hourly
- 4.9/5
- (86 jobs)
You need an eager, able, and confident freelancer who's devoted to making your vision a reality. That's exactly who I am. Hi, I'm Jason. Im an eCommerce specialist and Professional Web Developer in the making. I specalize in Shopify, and I mean every aspect of it. From custom themes to email marketing and SEO best practices, I can help you build them all for success. Send me an invite and lets talk about your next project today! Skill Set: - eCommerce CMS ( Shopify ) - HTML5 - CSS3 - JavaScript - Liquid - Responsive web designs - UX/UI - Graphic Design - Marketing and Advertising - Product, industry and niche research - SEO - Email Marketing

JavaScript
Ecommerce Website Development
Copywriting
Shopify Templates
Shopify Theme
Email Marketing
Liquid
Website Customization
Theme Customization
Web Development
WordPress
CSS 3
HTML5
Shopify
Landing Page
Web Design
$150 hourly
- 5.0/5
- (7 jobs)
Information Security professional with a Masters in Cyber Security focused on emerging threats in a highly contested and persistent threat environment. I leverage excellent attention to detail in conducting analysis and apply adept writing skills to capture and accurately record my work.

JavaScript
Cloud Management
Security Engineering
Bash
Terraform
Amazon Web Services
Software Testing
Ansible
GitLab
Security Infrastructure
Python
Cloud Architecture
Docker
Kubernetes
Security Testing
Business with 100-999 Employees
$95 hourly
- 4.9/5
- (16 jobs)
US Full Stack Developer & WordPress Expert with over 20 years of experience. Imagine being able to work with an articulate developer (in the United States) who can understand and solve your problems while communicating in a professional way (and in clear, friendly English). I know right?! WordPress Development Security and Hack Fixes & Prevention Bugs WooCommerce Plugins Multisite Javascript Solutions Web Server Administration Any associated service with running a website (from database administration to analytics). I can fix any issue with WordPress and it's associated services. Let's talk!

JavaScript
WordPress Theme
PSD to WordPress
Linux System Administration
WordPress Malware Removal
PHP
WordPress Plugin
CSS
WooCommerce
WordPress
$75 hourly
- 5.0/5
- (2 jobs)
I am a Front End | Full-Stack Web Developer with a computer science degree and experience with both hardware and software technologies. I have a true passion for solving human problems. In the past, I achieved this through providing hardware solutions. In the present, I write elegant code to make Internet a better place for people. PROFESSIONAL EXPERIENCE Languages: Javascript, Ruby, Java, HTML5/CSS3 Frameworks/ Libraries: Rails, React-Redux, Material-UI, Node.js, Sass Database: PostgreSQL, MySQL, ActiveRecord Other: Git/Github, Heroku, webpack, AJAX, JSON, RESTful APIs, JSX

JavaScript
React Native
Android
Sequelize
ExpressJS
TypeScript
PostgreSQL
Java
Node.js
React
$75 hourly
- 5.0/5
- (45 jobs)
I build professional websites for small businesses and nonprofits, where security is a top priority, not an afterthought. While functionality and design are important aspects in building a website, so is protecting that end product, from the onset. I produce a high quality digital marketing product that is as secure as it is professional. Every organization deserves to put its best foot forward on the global platform of the Web, no matter their size. With my college education, military experience, history in crafting and small business management, and continued desire to learn more about web technology, I bring a lot more to the table than just website coding and design. My best qualities: - Highly organized and detail-oriented - Overwhelming work ethic - Desire to learn, willing to try new things - Desire to succeed, can't leave a job unfinished - Team player, motivator Specialties: - Website development - Front-end development - Local and small businesses - Nonprofits and charity organizations - Start-ups - Web presence - Web application development - Security focus - Professional websites - Website consulting - Web Information Security

JavaScript
Static Site Generator
PHP
Website Security
jQuery
HTML5
CSS 3
WordPress
$100 hourly
- 4.8/5
- (54 jobs)
--- No fixed price projects. No projects with Russians. Only if you prefer quality. Taking long term projects (3+ months) by lower rate. --- I am your guarantee of 100% completed tasks. I’m expert in Web programming with over 25 years of experience (full stack, (fav stacks are LEMP, LAMP, MEAN), all modern web frameworks, secure, HIPAA-compliant, both front and back-end (for JavaScript, TypeScript, NodeJS, PHP, Perl), plus Windows desktop application development (Delphi, C++, C#), more than 25 years experience. Also I have some experience creating native applications for iOS, Android and various Unix-based OS’s (Linux, SunOS etc), but my primary focus is Web and/or Windows desktop apps. My goal as a programmer — to automate everything as much as possible. To save humans time and money while programs and robots doing all the routine work. All the data can be processed automatically, interacting with user via extremely intuitive and friendly interfaces or by scheduled messages (via emails, messengers or sms). Also, during the last couple of years, I have created several geo-data visualization apps (GIS dashboard, store locator etc) using Leaflet JS, MapBox and OpenLayers. Some of my works has been integrated into e-commerce sites running on WordPress/WooCommerce, ShopSite and SnipCart (last is my favorite). If you need to sell tickets for some events, I can integrate your site with SimpleTix. In general I'm doing any 3rd-party API integrations, like DocuSign, Twilio, BigMailer, full set of Google APIs and others. I prefer working with Cloud services (have experience with AWS, Azure and GCP). For CI/CD workflows I prefer Azure DevOps, although I also have experience with GitLab and GitHub+Netlify. Also, although I’m focusing on software development, I have good design skills, can create user interfaces from scratch and draw vector graphic in Adobe Illustrator, etc. And if you need an old school developer, I do low-level Windows/DOS programming in Assembly language too. And can support and update legacy web-applications written in Perl. I am the author of AppControls and DiskControls packs, 2 popular sets of the VCL components for Delphi and C++ Builder (google for AppControls). I have following significant periods in my career: 2019 — 2022: freelancer + support, maintenance & couching for past projects (after I moved to the USA in 2019) 2007 — 2018: Full Stack Web Developer + Team Leader. 1995 — 2007: Windows programmer (Delphi, C++ Builder + various databases + some backend web development in Perl and PHP). 1992 — 1995: DOS programmer (Turbo Pascal and Assembly language)

JavaScript
Database
Mapbox
Scripts & Utilities
jQuery
PHP
Web Application
HTML5
CSS 3
WordPress Development
MySQL Programming
Delphi
API Integration
$45 hourly
- 4.9/5
- (91 jobs)
I am a UI/UX Designer, Front End Developer, and Brand Strategist based in Los Angeles. My passion is making technology more inclusive to everyone no matter their age, race, or gender. In my projects, I combine business, marketing, communications, and design thinking to develop meaningful, differentiated, and authentic brands for companies big and small, start-ups or stalwarts. I don't just come up with what’s trendy; I craft a message your customers want to hear and one that you can deliver on. My focus every day is on my clients, their needs, desires, and goals. I strive to make their product goals into a reality. Not just making something that looks good which most designers can do. I create a marketing strategy for the client to show the product's value to the public. Leading to more conversions and users. MY SERVICES: - User Interface Design - Landing page Design - User Experience Design - Website Design - SEO - App Design - Prototyping - Content Writing - Website Development - Web Animations - Brand Identity - Logo Design - Personas - Interactive PDFs - SVG animations - Wireframe Design - Youtube Thumbnails - Video Animations - User Flows - Mobile UI Design(iOS/Android) - HTML Emails - SEO - Google Analytics - Firebase - Poster Design - Ad banners - Design Systems - Style Guides SERVICES GUARANTEED: - Up to 4 revisions - Multiple file formats - Support on files after project completion Feel free to send me a message, I'd love to chat! Tools I use: Figma, Adobe XD, Indesign, Sketch, Illustrator, Visual Studio Code, HTML, CSS, Javascript, React, Next JS, Squarespace, WordPress, Webflow, Divi, Elementor, Adobe Photoshop, GSAP, Framer, Three JS, Rive, Github, Node JS, Canva

JavaScript
Video Ad
Branding
Website Redesign
WordPress
Elementor
CSS
Divi
React
HTML5
Webflow
Wireframing
Search Engine Optimization
Web Design
UI/UX Prototyping
$75 hourly
- 4.8/5
- (19 jobs)
I've spent the last 20 years as a developer and designer in a number of areas primarily focused on web, mobile, print and games. Whether I'm coding a new web app or designing a logo, I love problem-solving on every level. I've had the great fortune to work on a variety of amazing projects over the years. Skills & Experience Web Design & Development - HTML / CSS / JS / JQuery - WordPress - Ruby on Rails - React / Svelte - Node.js / Express - PHP / Codeigniter / Laravel - Python / Django / Google App Engine - Heroku / AWS / Google Cloud Platform Game Design & Development - Unity (8 Years Experience) - MonoGame / XNA - Cocos2D - Godot - Gamemaker - The Debug Log - Host of a podcast about game development (thedebuglog.com). Mobile - iOS - Objective-C / Swift - Cross Platform - Phone Gap, Xamarin Graphic Design - Photoshop / Illustrator / Indesign / Premiere / AfterEffects - Sketch / Procreate - Branding Strategy / Logo Design / Cover Art - Marketing Materials / Emails / Banner Ads / Posters - UX Strategy / UI Interface Design / Mockups I am a very detail-oriented person who likes coming up with creative solutions to hard problems. I have worked on several different freelance projects over my career ranging from simple design work to full-blown web apps and games. You will not regret considering me for your next project. Thanks, Andrew Currie

JavaScript
UX & UI
Unity
Web Development
UI/UX Prototyping
Game UI/UX Design
PHP
HTML5
C#
UX Wireframe
Responsive Design
Game Development
WordPress
Web Design
Graphic Design
$80 hourly
- 5.0/5
- (10 jobs)
I am a web and software developer with over 10 years of experience working in multiple programming languages and frameworks. I specialize in responsive and reactive applications that are both functional and appeasing to the eye. I focus on futureproofing your app by planning for scalability both in size of the customer-base and infrastructure changes needed in the future.

JavaScript
Network Engineering
Web Application
Information Security
Network Security
Web Server
Web Design
API Development
Website Redesign
SQL
PHP
Python
Web Service
API
$60 hourly
- 5.0/5
- (102 jobs)
👋 Hi, I am an experienced Chatbot Developer for GPT, Dialogflow, Azure, ManyChat and more. Get commercially viable AI chatbots to decrease your overhead (through automation) and increase sales through lead generation and nurturing from a Microsoft Certified Azure AI Engineer and GPT/NLU/Conversational Specialist with 5-years professional experience solving real-world challenges across voice and text chatbot platforms. ➡️ Send a message or schedule a consultation call at your convenience. Tags: Marketing Automation, Emerging Tech, Full Stack Development, Back-End Development, Chatbots Certifications: Microsoft Certified Azure AI Engineer Associate - Microsoft - 2022 Mobile App Design Certification - Coastline College, Fountain Valley, CA - 2018 Skills: - Programming: JavaScript, Node.js - Chatbots: GPT, Dialogflow, Azure, Lex, Watson, Messenger, Twilio/SMS, Instabot, Tidio, ManyChat - Frontend: HTML, CSS, JavaScript - Databases: Google Cloud, Firebase, Azure, AWS - Backend: Node.js, Firebase Functions, Azure Cognitive Services, GPT - Cloud: GCloud, AWS, Azure Some of my past and recent projects include: - GPT API Chatbot to generate lectures and content for an online university. - Orchestration Chatbot: Combining Dialogflow, Lex, Watson NLU recognition simultaneously . - Persuasive Sales Agent Chatbot: The chatbot is currently 1 out of 25 chatbots to appear on ManyChat’s official site (manychat.com/templates). - Robust Customer Support/Sales Chatbot: The chatbot featured on Kettlebell Kings’ Facebook page has helped reduce hours spent interacting with customers for support inquiries. - IoT Telematics Server: An IoT device server for a rental sharing company. - Google Voice Assistant Chatbot: The voice chatbot for Google Assistant implements DialogFlow with Google Actions SDK (including Google Transactions to facilitate payments for premium version upgrades). Designed and launched in 2019 the game reached the top #100 most popular (according to Google Actions Explore rankings)

JavaScript
Artificial Intelligence
Chatbot
Machine Learning
Chatbot Flow Design
Marketing Automation
Chatbot Development
Firebase
Dialogflow
Node.js
ManyChat
Productivity Chatbot
Natural Language Processing
Firebase Cloud Firestore
Chatbot Integration
$75 hourly
- 5.0/5
- (43 jobs)
I am a highly experienced Java developer with 20 years of industry experience and I have been specializing in implementations using Adobe Experience Manager (AEM) for the past 8 years. I've built solutions in AEM 6.1 - 6.5 and AEMaaCS. In 2018, I was one of the winners of the Adobe Immerse 2018 Community Code Contest, as well as a presenter at the Adobe Immerse virtual conference, leading a discussion on Creating Custom ContextHub Stores and UI Modules in AEM. I have also contributed to ACS AEM Commons (the main AEM open source project) by helping to build Shared Component Properties. I also have solid experience working with various JavaScript frameworks like jQuery and VueJS and the drive to pickup new ones when necessary. I am also familiar with Less, SCSS, and CSS and the concepts of building responsive sites using Bootstrap and AEM Grid. I strive to write clear and maintainable code, and fully document my code to ensure future developers have a clear understanding of all methods and classes. Also, I will gladly provide any additional documentation or training materials requested, which will be well structured and well written. I am a strong problem solver and skilled at exploring and debugging complex problems to get software applications back on track when strange errors or edge case scenarios arise.

JavaScript
NodeJS Framework
Adobe Experience Manager
Vue.js
Spring Framework
CSS
Jakarta Server Pages
HTML
Java Servlet API
jQuery
Java
$100 hourly
- 5.0/5
- (7 jobs)
Hello! I'm a seasoned developer specializing in creating robust and scalable digital solutions. With expertise in web and mobile app development, I leverage technologies like React, Angular, StencilJS, Firebase, Capacitor, Ionic, and Material UI to deliver high-quality products. My approach combines a strong professional ethic with swift execution, ensuring that your projects are completed efficiently and to the highest standards. Whether you need a sleek website, a dynamic web app, or a responsive mobile application, I'm here to help you make your digital vision a reality. Let's connect and bring your ideas to life!

JavaScript
Angular Material
Angular 6
Google Cloud Platform
Google Maps API
Mobile App Development
Ionic Framework
SCSS
CSS
Python
TypeScript
HTML
Supabase
Firebase
Stencil
Angular
React
$125 hourly
- 5.0/5
- (187 jobs)
Hi there. I'm a freelance Web Developer that specializes in Squarespace. If you want some extra customization for your page, or you want someone to set it up the first time, I'm your guy! For the past 9+ years, I've been creating Squarespace sites for businesses of all sizes. No project is too big or too small. My specialty is to consult with you to set up and design your page and then train and hand off the page for you to continue on your own with minimal help going forward. I'm also available to do recurring work updating your page regularly as well as one on one training sessions.

JavaScript
CSS 3
CSS
Training
HTML
Web Development
Plugin Installation
Squarespace
Responsive Design
Web Design
$75 hourly
- 5.0/5
- (30 jobs)
Hey I'm Aansh - a Web Developer from New York. I have a B.S. in Computer Science from Tufts University and have years of experience building clean custom Wordpress websites built with Elementor as well as my own custom code (HTML/CSS, Javascript). I’ve built simple yet sophisticated websites for many individual clients as well as worked on more complex projects for larger companies. My main goal for each of my clients is to deliver an end product that is professional yet sleek, easy to navigate, and fully responsive. Most recently, I singlehandedly built and maintained an innovative TV startup's website from the ground up - creating top-level pages, custom javascript API integrations, market-specific buyflows, and dozens of landing pages designed and optimized specifically for ad driven traffic. Through the implementation of geotargeting/retargeting techniques, SF integration, A/B testing content, and more, I (alongside the marketing team) helped drive significant subscriber growth - resulting in the company going from 0 to 7000+ new active monthly customers. Additionally, I helped manage our tracking tags within Google Tag Manger, optimized website load speeds, and improved our SEO ranking. I have strong communication skills and enjoy working collaboratively so reach out if you'd be interested in talking more!

JavaScript
UI/UX Prototyping
WooCommerce
WordPress
HTML5
Elementor
CSS
jQuery
Responsive Design
Page Speed Optimization
Web Design
$195 hourly
- 5.0/5
- (24 jobs)
Hi! I'm James, a Harvard Computer Science graduate, an ex-Googler, and CTO-level fullstack software engineer. I have 21 years of work experience, and can meet in-person if you’re in or near silicon valley. I believe that brilliance is good; reliability is better; and most important are integrity and compassion.. I help awesome people doing amazing things in the world; and I will deliver you delightful tech and tech leadership, on time, on budget, with full transparency and candor. I provide the following services: - Fractional CTO: I will work with you to clarify your visionary goals into an actionable technical roadmap; help you secure funding if necessary; and then run the technical operation start to finish. - Web and native app development: From napkin-sketch ideation to 7+ figure production, I will deliver intuitive, elegant digital experiences to your customers, from top-rated games and 3D virtual worlds to FDA compliant medical software, on the web and on devices. - Solving “unsolvable” tech problems. Examples of real projects I was engaged for: building a low power “hurricane proof” weather camera (Weather Channel); assisting with the development of the Semantic Reactor (a Google/Alphabet internal project); building a physical neural network entirely out of glass. - Technical project management: I will ensure your project runs on time and on budget, with incremental milestones and mitigated risks, using the best of Agile and PM tooling. I can manage teams large and small. - Productionalizing Research. Give me the research paper or the patent, I’ll make it real and scalable. - Consulting, with lawyers and attorneys, as a software engineering resource, for instance with respect to contracts and other legal matters (like Privacy Policies or GDPR/CCPA concerns). - Modernization of old technology: I will migrate and modernize your legacy application using the industry’s latest best practices. I have experience with performance tuning, scalability, devops, security hardening, penetration testing, and much more. - Teaching and coaching: I teach middle and high schoolers competitive coding. I enjoy tapping into every student’s life story and motivations. I also advise entrepreneurs and can act as a sounding board for personal and professional goals. - Solutions Architect: I provide comparative analysis of modern cloud technologies and explanations of how to use them for different scenarios. For example, I delivered a research paper to a private equity firm comparing Kafka, Kinesis, and other message queue technologies. The following are some of the technologies I have experience with: • Languages: Javascript/Typescript (ES6, ES7), C and C++, Java, Kotlin, Scala, Python, C#, Go / Golang, Rust • Analytics and Automation: make.com, Zapier, Twillio, Vercel, Airtable, Tableaux, Salesforce • Web: HTML5/CSS /SCSS/SASS/CSS-in-JS, React, Angular, WASM, 3js / three.js, Svelte, Astro, Vue.js, Qwik, Next.js, internationalization/i18n, localization l10n, accessibility/a11y • AI: PyTorch, TensorFlow, ChatGPT, GPT3 and GPT4, GAN (generative adversarial networks), Transformers, LSTM, RNN, belief networks / HMM • Mobile: ios (Swift and Objective-C), Android (Kotlin, Java) and DEX / Dalvik debugging, Google Play, App Store, React Native, expo • Geospatial: S3, H2, KD-tree, quadtree, ArcGIS, choropleths, NLP (including slack and discord chat bots) • MVP and Project Management: Figma, Trello, Jira, Agile, Scrum, Kanban • Testing and QA: JUnit, Jest, Mocha, Chai, Selenium, Puppeteer, Playwright, Cypress • Backend: NodeJS, Express, Django, flask, Tomcat, Spring, RabbitMQ • Infrastructure and DevOps: Docker, Kubernetes/k8s. GitHub Actions, CircleCI, Jenkins, Vercel, Netlify, Gatsby, Drone, Vagrant, Chef, Ansible, Terraform • Auth and InfoSec: auth0, oauth2, pentest, ISO 27001, GDPR, CCPA • Cloud tech: AWS, Azure, GCP, EC2, S3, Lambda, Kafka, Kinesis, AppSync, Spark, Storm, DataFlow, Hadoop • Databases: MySQL, Postgres, Firebase, Mongo, DynamoDB, Redis, NoSQL • Games / 3D: Unity, Unreal, OpenGL, webgl, photogrammetry, Meshlab, Blender, OpenCV • Embedded Tech: IoT, Raspberry Pi, Arduino, • Code Management: Github, Gitlab, Gerrit, Git, Svn • DevOps and Command Line: Bash, ZSH, Linux, PowerShell, Make, ImageMagick, FFMpeg, cron, GNU core tools

JavaScript
PyTorch
NodeJS Framework
TensorFlow
Artificial Intelligence
React Native
Unity
Apache Kafka
Raspberry Pi
Scala
Java
Python
Android
Bash Programming
Enterprise Architecture
$60 hourly
- 5.0/5
- (6 jobs)
🚀 Transforming Projects, Delivering Excellence! 🚀 Are you seeking a dedicated Full Stack Engineer to elevate your projects? Look no further. 🛠️ **Experience**: With a track record at Amount and NobleIndustries, I've consistently led teams, managed daily stand-ups, and served as the main point of contact for product managers. I specialize in building new features using cutting-edge technologies like ReactJS, VueJS, JSON, and TypeScript. 💡 **Optimization Expert**: My expertise extends to streamlining deployments. At Amount, I uncovered and implemented Jenkins deployment optimizations that boosted deployment speed by 10%. I review and provide optimization techniques, resulting in streamlined approval processes and a decreased building time in Jenkins. 🏆 **Problem-Solver**: I've automated customer shopping experiences, revamped client authentication, and optimized customer billing with technologies like Node.js, JavaScript, PostgreSQL, and Express. This led to remarkable sales increases and improved customer retention. My bug-testing prowess ensures an efficient, bug-free application. 🤝 **Reliable Partner**: As a Full Stack Engineer, I'm committed to tracking deliverables to ensure timely and efficient production, resulting in a remarkable 20% increase in workflow. I'm your trusted partner for taking your projects to new heights. Ready to discuss your project's needs? Let's connect and make your goals a reality. Best regards, Hamadou Diallo

JavaScript
Tailwind CSS
Redux
GitHub
TypeScript
Vue.js
Nuxt.js
Next.js
PostgreSQL
React
Node.js
CSS 3
Redis
Python
HTML5
$115 hourly
- 4.7/5
- (51 jobs)
🥇 Top Rated Upwork Contractor 🏆 100% Job Success Score 💰 Completed over 50+ projects with 100K+ earnings ⌚ 15 years of professional experience 👨‍💻 Impressive collection of websites, mobile apps, and web applications (SaaS) exemplifying excellence in design and functionality (visit: afdigitalnative.com) 🙋🏻‍♂️ Hello! I'm Angel Flores, a US-based Senior Developer specializing in website & mobile app development and custom software solutions through platforms like WordPress, Shopify, Magento, & Hubspot. WordPress: I have extensive expertise in customizing themes, developing responsive UI/UX, and customizing plugins for Wordpress. Additionally, I am well-versed in various premium Wordpress themes such as Astra, Avada, Divi, Elementor, Salient, Jupiter, X, and more. Shopify: I'm adept at the Shopify Liquid Programming Language, allowing for unique theme customization. I can create custom mega menus, collections, advanced product pages, custom app integrations, content page templates, as well as ensure seamless integration of 3rd party software including logistics partners, dropshippers, ERP, CRM, and accounting systems. Need help with design? I am equally proficient in Web & Mobile App Design. Let's collaborate to transform your next dream project! Here is just a handful of the major programming languages and frameworks I work with: ✅ React.js ✅ Angular ✅ PHP ✅ Laravel ✅ Node.js ✅ MongoDB ✅ Html5 ✅ Css3 ✅ Bootstrap ✅ ExpressJS ✅ JavaScript ✅ MySQL Certifications and Partnerships: ** Google Partner (Google Analytics & Google Ads Certified) ** Shopify, BigCommerce & Magento Partner ** Hubspot & Klaviyo Partner Shopify Services: ✅ Expert at the Shopify Liquid Programming Language (For Unique Theme Customization) ✅ Custom Mega Menu ✅ Custom Collection Page templates ✅ Custom Content Page templates ✅ Advanced Product Detail templates ✅ Custom Functionality ✅ 3rd Party software integrations like Logistics partners, dropshippers, ERP, CRM, Accounting systems etc. ✅ Provide consultation/strategy/execution for B2B & B2C clients in the Ecommerce, IT, SaaS, healthcare, enterprise, and non-profit industries. ✅ Marketing automation expert: using Hubspot, Marketo, Klaviyo, ActiveCampaign. ✅ Certified Hubspot Expert with advanced design, development and copywriting capabilities. ✅ Can design and build your website, landing pages and email templates.

JavaScript
jQuery
Web Design
Divi
Theme Development
Shopify
Squarespace
WordPress
Bug Fix
Wix
WooCommerce
PHP
HTML
Angular
CSS
Mailchimp
$50 hourly
- 5.0/5
- (336 jobs)
Greetings! My name is Waldon. Please, though, call me Doug! Thank you so much for clicking on my profile. I’ve been a SquareSpace designer for over three years. I have designed websites in a variety of fields, from e-commerce, to services, to portfolios, and many more. I can build your website from the ground up, do a redesign, or add some custom code to give your website some extra flair! Since joining UpWork in 2019, I have worked with over 200 clients, and I am lucky to call many of them my friends to this day. I see myself as a very enthusiastic and personable designer. I apply these attributes when working with clients. It’s not enough for me to enjoy designing your website and delivering an efficient end product. It’s important that you, the potential client, thoroughly enjoy our time working together as well. I believe from my client’s written feedback; they agree with that sentiment. Thank you so much for your time. I am so excited to meet all of you. I am very much looking forward to what the next project holds! Wishing you all the best, Doug

JavaScript
Ecommerce Website Development
Web Design
CSS
Shopify
HTML
Squarespace
$55 hourly
- 5.0/5
- (18 jobs)
I believe in the power of the internet and it's ability to connect. Being essentially plugged in since birth, and given the opportunity to experience this gift of communication, knowledge, and looks into other worlds - I'm very grateful to have an opportunity to contribute to it through web development. Although money is nice, I didn't teach myself full-stack development just to earn it - I'm also passionate about seeing your idea come to life. Over the years, I have become experienced in the ins and outs of UI Design, APIs, Javascript, React, and Node.js. In all of this though, I want to help make other people's ideas be the best that they can possibly be. If you like the work I do for you, please leave a positive review! :) Feel free to book a consultation, or message me to get my email!

JavaScript
Google APIs
Bootstrap
WordPress
jQuery
ExpressJS
PHP
HTML5
MongoDB
Node.js
CSS
React
$90 hourly
- 5.0/5
- (52 jobs)
Expert-Vetted - in the top 1% of freelancers on Upwork Hi future client! I'm Sonia, a full-time freelance web and brand designer specializing in modern, sleek websites that make your company shine. I'm the founder of Duo Studio (duo-studio.co), a creative digital agency specializing in building brand identities for luxury brands and interactive websites that stand out on the web. If the project is small in scale, I am available to work as a freelancer. For more extensive projects, I collaborate with my agency, Duo Studio. My portfolio and agency website is available at duo-studio.co. I specialize in designing modern, creative websites and brands that are simple, yet impactful. I've worked with clients among multiple in industries including real estate, film, theater, e-commerce - you name it, I've done it. My most notable clients include Quentin Tarantino, The Maryland Film Festival, and Georgia Pacific. My design skills have even earned me recognition from esteemed platforms like Awwwards, Mindsparkle Mag, and DesignRush, so know that your brand is in good hands! Contact me and let's talk about you. I'm enthusiastic about connecting brands to people through strategy-driven solutions and collaboration. I always lead with empathy and am fueled by innovative new technologies and trends. If you're in the area, I'd love to grab a cup of coffee, tea or whatever you drink. Talk soon!

JavaScript
Brand Strategy
Brand Identity
Logo Design
Copywriting
WordPress Development
Branding
Web Development
Interactive Design
User Experience Design
Website
Web Design
User Flow
$100 hourly
- 4.9/5
- (85 jobs)
I am a professional web developer with expertise in the Shopify platform. I have built websites for clients on Shopify, Wix, Squarespace, and Wordpress as well as from the ground up. I can help with integrating complex APIs, task automation or fixing broken code.

JavaScript
Shopify Plus
Coding Art
CSS 3
Shopify Apps
Website Customization
HTML5
Stripe
CSS
React
Shopify
Business with 1-9 Employees
Web Design
$105 hourly
- 5.0/5
- (9 jobs)
I'm a data visualization and UI developer with 13 years experience. I've worked independently and on dev teams large and small to build compelling front ends and dashboards using React, WebGL, D3, JavaScript, Python, and many other technologies. I've also designed sites and visualizations using Illustrator, Figma, and Photoshop.

JavaScript
React
WebGL
CSS
D3.js
TypeScript
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