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

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Clients rate JavaScript developers

4.8/5

based on 10,718 client reviews

$40 hourly
- 5.0/5
- (35 jobs)
Hey 👋 I've been in the industry for over 4 years now and built a niche in developing performant, visually rich websites using React, Next, Tailwind and CMS's like Wordpress and Shopify. I can build a dazzling portfolio or a speedy, custom e-commerce site. Whatever you need, I got the expertise to design and build it. Let's chat about your vision. 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
Shopify
TypeScript
AI Chatbot
OpenAI Inc.
HTML
React
Web Development
Search Engine Optimization
Elementor
Next.js
Tailwind CSS
Website
CSS
WordPress
$100 hourly
- 5.0/5
- (28 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
- (67 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
- (21 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
$80 hourly
- 5.0/5
- (7 jobs)
I am a highly skilled, senior-level full-stack developer, well versed in software development, systems administration and project management best practices. I create well-built web sites and applications. My skills include: content management system (CMS) development; user interface UI and user experience UX design and development; MySQL database development and administration; WordPress plugin & custom theme development; e-commerce development; LAMP server administration; web server and site optimization; cloud administration and deployment. I have many years of experience and a high level of expertise with the following: WordPress (Themes, Plugins, API), Bootstrap, Tailwind CSS, WooCommerce, GSAP (GreenSock), PHP, MySQL, HTML5, Javascript, CSS3, Git, Gulp, Sass and Node.js. I am available to answer any questions you might have regarding my work experience and abilities.

JavaScript
Postman
Git
Bootstrap
Tailwind CSS
Vue.js
MVC Framework
LAMP Administration
Laravel
API Development
Front-End Development
Back-End Development
IT Project Management
PHP
MySQL
$60 hourly
- 5.0/5
- (9 jobs)
I’m a multilingual PERN Full-Stack Developer with 3 years of professional work experience working at some of the largest gaming companies in the world, as well as a few start-ups. My biggest strengths are JavaScript, SQL, Html, CSS Java, NodeJS, Express.JS, ReactJS, PostgreSQL, Spring Framework, Thymeleaf, Bootstrap, Python, Heroku, Cloudflare, Selenium, Firebase, and REST API. I have experience working in Full-Stack development, as well as web automation.

JavaScript
PostgreSQL
ExpressJS
Tailwind CSS
Thymeleaf
React
Node.js
Selenium
Spring Framework
Bootstrap
CSS
HTML
SQL
Python
Java
$250 hourly
- 5.0/5
- (7 jobs)
Secure Your Business with Expert Compliance and Security Services In B2B, proving your organization is Secure, Compliant, and Privacy-law abiding is crucial to doing business with enterprises. Join 30+ satisfied clients in accessing thousands of new business opportunities worth millions by working with this UpWork-featured virtual CISO and Privacy expert (100% Job Success, $100k+ earnings). Client Testimonials CEO, Park National Bank: "Caleb knows Security and DevSecOps extremely well and he's an absolute pleasure to work with. I would definitely recommend his services. We couldn't have gotten our SOC2 Type 2 nearly as fast without him." CEO, US Army Corp of Engineers: "Working with Caleb was great! He is very knowledgeable about cybersecurity and was always willing to go the extra mile to complete the assigned tasks. Will definitely use his services in the future." CEO, Major Hospital Network: "Working with Caleb has been an outstanding experience from start to finish. His commitment to excellent communication, both proactive and responsive, truly sets him apart. Caleb was not only professional but also genuinely pleasant to work with. He is a great resource for teams that value speed and precision. We recommend Caleb to anyone seeking reliable and effective compliance and cybersecurity solutions.” Specializations: • SOC2 • HIPAA • ISO27001 • GDPR • CCPA/USDP • CMMC If you don't get the certification, you'll get a full refund! How to Get Started Ping me here on UpWork, bring your problem, and after a 15-minute scoping call, you will receive a detailed Scope of Work. Services Offered: • Cloud Security Posture Assessment: AWS, GCP, Azure • Penetration Test Report: Rapid turnaround to meet client demands • Endpoint Security Enhancement: Kandji, Jumpcloud, Intune, Google Workspace • Continuous Support: Get a virtual CISO/fractional CISO for an affordable monthly rate • DIY Compliance Tools Assistance: Drata, Vanta, SecureFrame, etc. Benefits of Working with Me: • Focus on your product with your security posture managed professionally • Receive a fully-managed, reliable service • Experience a tailored approach with an ownership mentality, prioritizing your best interests • Enjoy long-term security support at a fraction of the cost of a full-time security employee Invitation and Contact: Click on the green invite button at the top right corner to invite or message me. Important Notes: 🚫 No hacking service! Don't ask to hack, crack, or gain access to any accounts, systems, social media, etc. All invitations for such requests will be declined. 🚫 I only serve businesses, no service for private individuals! 🚫 Ready to secure your business and accelerate your compliance efforts? Contact me today to discuss how I can help.

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
$40 hourly
- 5.0/5
- (23 jobs)
- WordPress websites / WordPress themes development with ACF from PSD; - WP website development using builders (Beaver, Elementor, Divi, WPBakery); - implementing new features and functionality; - managing all technical aspects of the CMS; - work with databases / SQL (restore corrupted DB, migrate Joomla website to WordPress) - website speed & performance optimization; - implementing SEO; Skills • Wordpress, Joomla, Prestashop; • PHP, JavaScript, JQuery; • HTML5, CSS3, SCSS; • Bootstrap, flexbox; • SQL, PHPMyAdmin, SQL Management Studio; • Figma, Illustrator, Photoshop (15.01.16 - 15.06.16 - ArtClub ATC certificate in Digital Art); • CRM systems (Zoho, Freshdesk, Jira, Asana); • Git, SVN; • NPM, Webpack • Have experience with React and Laravel;

JavaScript
PHP
CSS 3
WordPress
SQL
Bootstrap
Figma
React Native
Laravel
Adobe Photoshop
$75 hourly
- 5.0/5
- (46 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
$45 hourly
- 4.9/5
- (95 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
$40 hourly
- 4.5/5
- (239 jobs)
⭐️ Web Accessibility ⭐️ ADA / WCAG 2.2 AA / Section 508 Aloha, I am a front-end developer with a passion for web accessibility. I am currently employed as the ADA Coordinator for a college university here in Hawaii. My responsibility is to ensure all digital content that goes through our institution is accessible and ADA compliant. I love what I do and with the help of Upwork, I'm able to provide web accessibility help to individuals and businesses across the world 🌐. Here are the services I can provide you: 🔹 Accessibility audit and consulting for website or application 🔹 Direct remediation development of website or application 🔹 Document remediation (PDF, Forms, Word, Excel, PowerPoint, InDesign) 🔹 VPAT (Voluntary Product Accessibility Template) Audit Report Certification Skillset: 🔹 HTML, CSS, JavaScript (Vanila, React, Typescript, Angular, jQuery) 🔹 WordPress, Shopify, Squarespace, Bigcommerce, Magento, Wix 🔹 Screen Readers: NVDA, JAWS, VoiceOver, and Google TalkBack 🔹 Expertise in the following Accessibility standards: - WCAG (A, AA, AAA) - ADA Compliance / Section 508 / HHS (US) - EN 301 549 (EU) - PDF/UA I look forward to helping you reach your accessibility goals! Mahalo (thank you)!

JavaScript
User Acceptance Testing
Manual Testing
Quality Assurance
Ada
Web Content Accessibility Guidelines
Web Accessibility
Section 508
UX & UI
Front-End Development
Shopify
WordPress
CSS
HTML
$37 hourly
- 4.8/5
- (35 jobs)
Experienced in project management, program coordination, and website management, I bring expertise in data analysis, research, and administration. Skilled in data mining, entry, and analysis, with proficiency in extracting vital information from legal contracts and documents. Detail-oriented and communicative, adept at collaborating remotely. Proficient in Excel, Google Sheets, WordPress, and other relevant tools. Feel free to reach out to discuss how I can help you achieve your business needs.

JavaScript
C#
jQuery
WordPress Development
PHP
CSS
HTML
$70 hourly
- 5.0/5
- (6 jobs)
I am a Data Engineer and a Software Developer with a focus on data processes. Proficient in Web Development, Data Science, Web Scraping, and DevOps, I craft robust applications and optimize workflows for seamless data management. I love exploring diverse technologies. From developing full-stack web applications to contributing to open-source projects, I’m always eager to learn and push my expertise. I can review your code to improve its readability and usability and I can write tests to ensure your software runs correctly. I am a quick learner and a reliable worker. Collaborative and open to ideas, I value teamwork and communication. Let’s connect and embark on a journey of data-driven success together. Summary of skills and experiences: Software Development: - Full-Stack Development: Proficient in building full-stack web applications. - Backend: Experienced in building APIs, data pipelines, and automated solutions. - Frontend: Familiar with frontend technologies for creating interactive user interfaces. Machine Learning and Data Science: - Machine Learning: Experienced in machine learning concepts, including model training and evaluation. - Data Analysis: Proficient in analyzing data, deriving insights, and making data-driven decisions. - Data Processing: Skilled in processing and transforming data using various tools and frameworks. - Jupyter Notebooks: Familiar with using Jupyter notebooks for interactive data analysis. Development Tools and Practices: - Git & GitHub: Proficient in version control and collaborative development using Git and GitHub. - DevOps: Able to use GitHub Actions and similar tools to automate delivery and integration of software. - Testing: Skilled in writing tests, including unit test, integration tests, and end-to-end tests. - Airflow: Experienced in building and scheduling data pipelines using Apache Airflow. - Cloud Development: Skilled in defining and managing cloud infrastructure on all major cloud providers using tools like AWS CloudFormation and CDK. - Terraform: Able to define infrastructure and set up repeatable deployments. - Docker: Familiar with containerization using Docker for efficient deployment. Programming Languages and Frameworks: - Python: Proficient in Python programming in the following areas: web development, data science, general scripting, and web scraping. - Java: Experienced in Java development, including Spring Boot for building robust applications. - SQL: Skilled in writing SQL queries and working with databases in various SQL dialects. - Machine Learning: Familiar with machine learning libraries including SciKit Learn for building and training models. - Pandas: Proficient in data manipulation and analysis using Pandas and numpy. - AWS: Experienced in various Amazon Web Services, including EC2, S3, CloudFormation, Redshift, Lambda, Glue, and Athena. - GCP: Knowledgeable in Google Cloud Platform, including Cloud VPS, Cloud DNS, Cloud Functions for serverless computing. - APIs: Experienced in creating and consuming APIs to integrate external services and data sources. Contribution to Open Source: - Contributed to the Komiser project by adding support for Linode Object Storage Bucket. Volunteer Experience: - exercism.io - Coding Mentor - Guided learners in Python coding exercises and practical applications.

JavaScript
HTML
CSS
Stripe
SQL Programming
Python
pandas
$50 hourly
- 4.8/5
- (35 jobs)
I am a senior full stack developer with experience across a wide range of industries and technologies. Strong project management skills as well, and exposure to DevOps on AWS and GCP. I graduated with an Economics degree from Cornell University in 2016. I also have an FAA license for remote piloting of drones. ● Over 5 years of commercial experience with React.js and Node.js using modern frameworks (Nest.js, Next.js, CRA, Koa.js, Express.js) and its ecosystem ● Used to working with Scrum and Kanban forms of Agile methodologies in both large and smaller teams ● Predominantly a hands-on engineer with strong system design and architecture experience ● Excellent skills across AWS and GCP (some exposure to Azure) ● API integration experience with Twilio, Contentful, Zoom, Google Calendar, OpenAI, Mapbox, Google Maps, SendGrid, Stripe, Authorize.net, PayPal, Auth0, Okta, Jira, SSO login, Oauth, OpenID Connect ● Keen machine learning and data science enthusiast, with intermediate Python (FastAPI, Flask) and database development skills (SQL-based and MongoDB engines) and some exposure to data processing libraries such as Pandas and R

JavaScript
Microsoft Azure
Scrum
Agile Software Development
Python
DevOps
Google Cloud Platform
Amazon Web Services
Node.js
React
$60 hourly
- 5.0/5
- (103 jobs)
Hi, I am an experienced Chatbot Developer for GPT, Dialogflow, Twilio, Azure, Messenger 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 at your convenience so we can discuss your project. 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, Kotlin, React - Chatbots: GPT, Dialogflow, Azure, Lex, Watson, Messenger, Twilio/SMS, Instabot, Tidio, ManyChat - Frontend: React, 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 recent projects include: - Voice chatbot that conducts interviews and surveys over the phone (built with GCP, and Azure) - GPT with Azure: A therapy simulator voice chatbot allows students to train in psychology with mock patients. - GPT lesson plan generator for grade levels K-12, generating 12-15 pages of lesson material. - GPT API Chatbot to generate lectures and content for an online university. - GPT, Dialogflow and Twilio working together to produce high quality customer support and lead gen capabilities via SMS. - Orchestration Chatbot: Combining Dialogflow, Lex, Watson NLU recognition simultaneously . - Persuasive Sales Agent Chatbot: The chatbot uses reinforcement learning to show different messages to different people based on the likelihood of a response. - Robust Customer Support/Sales Chatbot: The chatbot featured on Kettlebell Kings’ Facebook page has helped reduce hours spent interacting with customers for support inquiries.

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
$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
SCSS
CSS
HTML
Supabase
Stencil
Mobile App Development
Ionic Framework
Python
TypeScript
Firebase
Angular
React
$50 hourly
- 4.9/5
- (163 jobs)
Who I am: I am a developer and designer, I am very hands on, and will try to understand your brand and business to ensure a quality deliverable. Web Development Experience: ---------------------------------------- I have extensive experience creating websites and fixing existing code bases. ○ Angular 6/Typescript ○ HTML5 ○ CSS3 ○ Wordpress/Php ○ NodeJs ○ Javascript Software Development Experience: ---------------------------------------- My interest lies in creating repeat project work, with emphases on quality and completion time and I am always ready for new challenges. As a software developer I can handle most projects. My experience is as follows: ○C# ○ Java○ C++○ Typscript ○ WebScraping ○ Automation Tools Graphic Design Experience: ---------------------------------------- I can handle all graphic design tasks. I excel at the following: ○Logos ○ Business Cards ○ Flyers ○ Site and Product Mockups ○ Banners Video Animation Experience: ---------------------------------------- From logo animations to explainer videos, I'm your guy.

JavaScript
HTML5
CSS 3
WordPress
Shopify
Angular 6
Automation
Web Design
$125 hourly
- 5.0/5
- (200 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
$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
$75 hourly
- 4.8/5
- (19 jobs)
As a seasoned full stack developer with over 8 years of experience in both front-end and back-end development, I am confident that my skills and expertise align perfectly with the requirements of any role. Throughout my career, I have successfully led projects from concept to production, working collaboratively with cross-functional teams while also thriving under tight deadlines. For instance, while working at Dashcam, I developed a Google Chrome extension that communicated with their Electron desktop using Pubnub. Additionally, I created new features that enabled the browser extension to inject URLs into popular sites such as Github, Jira, BitBucket, and height.app. At Morgan & Morgan, I spearheaded the front-end development efforts and implemented new UI/UX processes that led to significant improvements in the company's performance. By analyzing web analytics and user behavior data, my team and I identified opportunities to optimize the user experience, which we tested using Google A/B testing. This resulted in a remarkable increase in conversions from 10% to 30%. I also had the privilege of working with Liberty Insurance, where I created an internal tool for supervisors that enhanced their productivity levels and improved their management skills. Working closely with the marketing and management teams, we set ambitious goals for the project and achieved impressive results that transformed the company's internal work structure. Finally, at Ackert Inc, I honed my expertise in React JS, building features based on designs, wireframes, and prototypes while troubleshooting product issues and developing stable long-term solutions. My work in data visualization and component optimization has enabled seamless cross-browser and cross-device functionality.

JavaScript
Electron
Desktop Application
Landing Page
Website
React
MongoDB
Node.js
API Integration
CSS
API
React Native
Next.js
HTML
$60 hourly
- 5.0/5
- (10 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
$75 hourly
- 5.0/5
- (7 jobs)
🌟 I offer high quality service to my clients. I’m experienced, highly-responsive with a track record of quick turnarounds. I take pride in doing my job well so you can focus on what's most important - growing your business! ➡️ I have over 15 years of web dev/design experiences ranging from eCommerce development, full stack and front end development, WordPress development…etc. I am highly experienced in JavaScript, HTML, CSS, SQL / MySQL, PHP, React, Node.js, Java, SpringBoot, JQuery, Bootstrap, MaterialUI, AngularJS, WordPress, Shopify, Squarespace, Webflow, WooCommerce and PrestaShop. I am also a mobile app developer developing mobile games and utility apps. ➡️ Why am I the perfect gal for you project? I have a keen eye for detail, a great sense of design, and write good clean codes. I design and develop each project with great focus on user experience (UX) and client's needs. I love learning about a client's business and tailoring a project to it's unique needs. Please feel free to take a look at my portfolio for some examples of my prior works. I look forward to working with you Ming

JavaScript
PHP
UX & UI
Ecommerce
Web Design
Shopify
MySQL
WooCommerce
Web Development
WordPress Development
WordPress
CSS
Website Redesign
HTML
React
$50 hourly
- 5.0/5
- (354 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
$100 hourly
- 5.0/5
- (54 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
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