Hire the best JavaScript Developers in San Mateo, CA

Check out JavaScript Developers in San Mateo, CA with the skills you need for your next job.
Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 2,042 client reviews
  • $125 hourly
    Self-directed and motivated Sr. Software Engineer experienced working effectively in Startup, Midsize, and Enterprise environments. Fluent in Ruby and Elixir programming languages, including Rails and Phoenix.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Heroku
    Test-Driven Development
    Phoenix Web Framework
    Domain-Driven Design
    Agile Software Development
    HTML
    HTML5
    SQL
    Ruby
    MongoDB
    CSS
    Elixir
    Ruby on Rails
    jQuery
  • $45 hourly
    I can be your web designer who knows how to design, build and maintain any website of any complexity. I have built many websites on different CMSs and you can see my most recent projects below - both from UpWork and outside of it. I have over 5 years experience in web design and development across many industries. I am your guy to: ✔️ convert PSD/Figma/AdobeXD/Zeplin to HTML; ✔️ convert PSD/Figma/AdobeXD/Zeplin to WordPress; ✔️ make different animation on your website (CSS, GreenSock, ScrollMagic); ✔️ optimization page load speed; ✔️ improve SEO; My skills: ✔️ HMTL5(Jade); ✔️ CSS3 (sass, less, bootstrap, foundation, flex, grid layout); ✔️ JavaScript, ES6, jQuery; ✔️ React js, Redux; ✔️ Node js; ✔️ PHP; ✔️ Gulp; ✔️ Webpack; CMS: ✔️ Wordpress; ✔️ Shopify; VCS: ✔️ GitHub ✔️ Bitbucket Also, do not hesitate to reach out if you need help with graphic design and brand identity elements - logo, style guide, business cards, letterhead, brochures, stickers, car wrapping, menu, merchandise - T-shirts, cups, pens, bags, etc. I can guarantee your satisfaction and the best value.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CakePHP
    MySQL Programming
    WordPress
    Shopify
    React
    WooCommerce
    HTML5
  • $60 hourly
    Full-stack engineer living in San Francisco. Engineering background with MS. 10+ years experience in web development. I am the CTO of NachoNacho.com My strong skills: - Frontend: React.js, Next.js, TailwindCSS - Languages: CSS, HTML, JavaScript, Typescript, SQL - Backend: Node.js, Express.js, Socket.io - RESTful API, tRPC, GraphGL - Databases: MySQL, PostgreSQL, MongoDB, Redis, DynamoDB - AWS: Amplify, EC2, S3, Lambda, Cognito, API Gateway, Cloud Front, AppSync, DynamoDB... - Jest, Cypress, Mocha, Enzyme for unit test
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    AWS Lambda
    ExpressJS
    Tailwind CSS
    GraphQL
    MySQL
    TypeScript
    Material UI
    Web Application
    Node.js
    Vue.js
    Git
    Next.js
    React
  • $90 hourly
    For the last years, passionate about technology and human relations. Experienced professional with extreme ability to align with the business and their expectations. Focused on web development and services. Strong professionalism, charismatic with great relationship skills in a professional environment. Effective, communicator, technical and polished.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    HTML
    MySQL
    Node.js
    PHP
    PostgreSQL
    Ruby on Rails
    WordPress
    CSS
  • $15 hourly
    - Strong understanding of business flow, feature usage/priority, and product strategy. - Demonstrated leadership and ability to provide guidance to project teams throughout all QA phases and cycles. - Proficient in planning and scheduling testing activities. - Knowledgeable about cross-functional applications, processes, and procedures. - Excellent communication skills. - Capable of analyzing business requirements and translating them into a comprehensive test plan. - Skilled at prioritizing tasks/stories effectively. - Ability to create detailed, well-structured test plans and test cases. Testing Expertise: - Manual testing - Automation testing - Functional testing - Regression testing - BDD Testing Tech Stack: Management tools: Jira API testing: Postman, Rest API VCS: Git, Github, Databases: SQL, MYSQL, Oracle CI/CD: Jenkins Automated Testing: - Programming languages: Java, JavaScript - Frameworks: TestNG, JUnit, Selenium, Maven, Rest-Assured, Cucumber, JBDC
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Testing
    Bug Reports
    Manual Testing
    Quality Assurance
    API
    Automated Testing
    Web Testing
    Functional Testing
    SQL
    Selenium WebDriver
    Java
  • $25 hourly
    Motivated software engineer and data scientist with experience developing software tools and employing machine learning techniques to analyze flight data from different simulators. I also have strong technical skills in front-end and back-end frameworks and relational and non-relational databases. As a Full-Stack Software Engineer, I look forward to developing intuitive and enjoyable user products. Specialties: Frontend Web Development (React JS, HTML, CS) Backend Web Development (Express JS, Django) Database Management (MongoDB, SQLite) Data Science (Python, Pandas, Matplotlib, OpenCV, scikit-learn) I enjoy learning new things and connecting with people across various industries, so don't hesitate to reach out if you'd like to get in touch.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    pandas
    Data Visualization
    Data Analysis
    MongoDB
    Matplotlib
    RESTful API
    Django
    Python
    Web Development
    ExpressJS
    CSS
    Front-End Development
    HTML
    Node.js
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