Freelancers para contratação em United States - Página 3
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Mostrando 80 resultados
Freelancers Patrocinados
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Experienced Full Stack Developer with a proven track record of designing and building robust, scalable, and user-friendly web applications. Proficient in utilizing a wide range of front-end and back-end technologies, including JavaScript, React.js, Node.js, and SQL/NoSQL databases. Capable of translating business...Experienced Full Stack Developer with a proven track record of designing and building robust, scalable, and user-friendly web applications. Proficient in utilizing a wide range of front-end and back-end technologies, including JavaScript, React.js, Node.js, and SQL/NoSQL databases. Capable of translating business requirements into technical solutions, collaborating cross-functionally with stakeholders, and leading the full software development lifecycle. Key Skills: - Expertise in front-end development using React.js, HTML5, CSS3, and JavaScript - Proficiency in back-end development with Node.js, Express.js, and RESTful API design - Experience in database management, including SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) - Familiarity with cloud computing platforms (e.g., AWS, Azure, Google Cloud) - Hands-on experience with DevOps tools and CI/CD pipelines - Ability to write clean, maintainable, and well-documented code - Strong problem-solving and analytical skills - Familiarity with agile methodologies and project management Notable Achievements: - Designed and developed a complex e-commerce platform with advanced features, resulting in a 25% increase in online sales. - Led the migration of a legacy web application to a modern, cloud-based architecture, improving system performance and reducing maintenance costs by 35%. - Implemented a robust security framework, including authentication, authorization, and data encryption, ensuring the protection of sensitive user information. menos
Contratar james0720
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Leading the development and implementation of complex web applications using Web3, ASP, PHP, MERN, or MEAN stack technologies. Designing and optimizing the front-end and back-end architecture for scalability and performance. Collaborating with cross-functional teams to deliver innovative solutions that meet client...Leading the development and implementation of complex web applications using Web3, ASP, PHP, MERN, or MEAN stack technologies. Designing and optimizing the front-end and back-end architecture for scalability and performance. Collaborating with cross-functional teams to deliver innovative solutions that meet client requirements. Full Stack Developer (MERN/MEAN) menos
Contratar jsont012
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jeremy788 jeremy788
$30 Dólares / hora
Flutter/ Flutterflow / React / Typescript / PythonUnited StatesAs a full stack engineer specializing in AI technologies, I excel in crafting comprehensive solutions, employing React for frontend development, Python for backend systems, and now incorporating FlutterFlow into my technology stack. With 2 years of experience in FlutterFlow, I have expanded my capability to build...As a full stack engineer specializing in AI technologies, I excel in crafting comprehensive solutions, employing React for frontend development, Python for backend systems, and now incorporating FlutterFlow into my technology stack. With 2 years of experience in FlutterFlow, I have expanded my capability to build versatile mobile applications alongside web platforms. My expertise in integrating AI into applications using this diverse set of technologies ensures the delivery of innovative, user-centered products that align with clients' visions and contribute significantly to organizational success. This unique combination of skills allows me to offer a broad perspective on project development, from mobile and web applications to AI-driven solutions, enhancing user engagement and operational efficiency. menos
Contratar jeremy788
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Welcome! We offer high technology for programming - Ecommerce, Web apps, Mobile apps, AI, Blockchain. - Proficiency in Ecommerce platforms such as Shopify, WordPress, Magento, CS-Cart and etc. - Skillful for frontend design and development using React.js, Vue.js, Bootstrap, TailwindCSS and etc. - Rich Experience in...Welcome! We offer high technology for programming - Ecommerce, Web apps, Mobile apps, AI, Blockchain. - Proficiency in Ecommerce platforms such as Shopify, WordPress, Magento, CS-Cart and etc. - Skillful for frontend design and development using React.js, Vue.js, Bootstrap, TailwindCSS and etc. - Rich Experience in backend development using Hapi.js, Express.js, Python(Django), Rust and etc. - Expertise in AI Development - Data Manipulation & Visualization - Powerful Web Scraping - Blockchain Development menos
Contratar DavidBaker530
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I have a strong working knowledge Web Applications and Web Application Development. In a previous position, at RestaurantMarket.Com, I single handedly wrote over 90% of the nearly 1 million lines of code that drove a large scale public facing e-commerce website. As a Website Application Developer, I have experience...I have a strong working knowledge Web Applications and Web Application Development. In a previous position, at RestaurantMarket.Com, I single handedly wrote over 90% of the nearly 1 million lines of code that drove a large scale public facing e-commerce website. As a Website Application Developer, I have experience with website programming, SQL programming and administration and programming, and web/SQL server administration and set up. I'm always happy to roll up my sleeves to get the job done. My previous experience working as an Associate Vice President for Citibank, gave me a wide range of programming experience in many different languages on mission critical applications. One of my core responsibilities in this position was as the sole programmer, DBA, and systems administrator for a mission critical in-house application responsible for facilitating the transfer of nearly 3 billion dollars around the world every day. menos
Contratar james399
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Hi there, I'm a seasoned full-stack developer with a passion for creating innovative digital solutions. With over 8 yrs of experience in the industry, I have honed my skills in both front-end and back-end development. My expertise includes proficiency in languages such as JavaScript, Python, and PHP, as well as...Hi there, I'm a seasoned full-stack developer with a passion for creating innovative digital solutions. With over 8 yrs of experience in the industry, I have honed my skills in both front-end and back-end development. My expertise includes proficiency in languages such as JavaScript, Python, and PHP, as well as experience with frameworks like React, Node.js, and Django. I thrive in fast-paced, collaborative environments and have a proven track record of delivering high-quality, scalable applications. Whether it's building responsive user interfaces or designing robust databases, I bring a holistic approach to every project, ensuring seamless integration and optimal functionality. I'm excited to leverage my skills and experience to contribute to cutting-edge projects and drive meaningful impact in the tech world. menos
Contratar john0445
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✓ Back-end: .NET, Ruby on Rails, PHP, Node.js, Laravel, Wordpress ✓ Front-end JS: Next.js, AngularJS & 2+, React.js jQuery, AJAX, CoffeeScript ✓ Front-end UI development: HTML5, HAML, CSS3, SASS, LESS, Bootstrap ✓ Databases: MS SQL Server, PostgreSQL, MySQL, MongoDB, Redis ✓ Payment: Braintree, Stripe, PayPal,...✓ Back-end: .NET, Ruby on Rails, PHP, Node.js, Laravel, Wordpress ✓ Front-end JS: Next.js, AngularJS & 2+, React.js jQuery, AJAX, CoffeeScript ✓ Front-end UI development: HTML5, HAML, CSS3, SASS, LESS, Bootstrap ✓ Databases: MS SQL Server, PostgreSQL, MySQL, MongoDB, Redis ✓ Payment: Braintree, Stripe, PayPal, Authorize.net, 2CO, Google Checkout ✓ Searching: Solr, Elastic Search, Ransack ✓ TDD: RSpec, Mini_test, TestUnit ✓ TDD/BDD support: Capybara, Cucumber, Factory_girl, PhantomJS, Selenium ✓ Servers: AWS, MS Azure, Heroku, Rackspace, DigitalOcean ✓ Code Management Tools: Github, Bitbucket, Gitlab ✓ PM Tools: Jira, Trello, Asana menos
Contratar wolfredM
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550+ Mobile App Development / Web Design/Development Projects Successfully Completed 9+ Years of Experience Quality of Service with 100% work satisfaction to clients. Accuracy Rate is about 98% to 100% Eager to learn - Honest - Reliable - Analytic - Ambitious - Team Player ✅...550+ Mobile App Development / Web Design/Development Projects Successfully Completed 9+ Years of Experience Quality of Service with 100% work satisfaction to clients. Accuracy Rate is about 98% to 100% Eager to learn - Honest - Reliable - Analytic - Ambitious - Team Player ✅ C#/C/C++/Java/Python/QT/OCR/OpenCV/Reverse ✅ Front End : React Js / Angular Js / HTML / CSS ✅ Back End : Node Js /Php /Laravel ✅ Mobile Apps : React Native ✅ E-Commerce ( Magento, Shopify, Woocommerce, Opencart) ✅ Amazon AWS, API's Development, Angular Js, Node Js, React Js ✅ Enterprise Websites & Web-services(XML, JSON), SOAP ✅ 3rd party APIs for integration into websites Web services(XML, JSON), SOAP ✅ Ui/UX Design Solutions ✅ Web Page Designing ✅ Mobile App Development ✅ Landing Pages ✅ Mobile App Development ( Hybrid+ Native apps) for both Android & IOS Platforms. - React Native I do both urgent and long-term projects. I always did and will do things in time. Contact me and I'll be happy to help menos
Contratar marko589
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anisamushtaq001 anisamushtaq001
$30 Dólares / hora
Graphic Designer | CMS Website Developer | UX/ UIUnited StatesI bring over a decade of expertise as a Graphic Designer, Web Designer, and Developer, contributing to the success of businesses through compelling graphics and user-centric web designs. With a proven track record of crafting 500+ logos and developing 100+ websites/platforms for both online and local clients, I...I bring over a decade of expertise as a Graphic Designer, Web Designer, and Developer, contributing to the success of businesses through compelling graphics and user-centric web designs. With a proven track record of crafting 500+ logos and developing 100+ websites/platforms for both online and local clients, I specialize in bringing brands to life in the digital space. My role extends beyond mere design and development; I excel in helping businesses establish a distinguished online presence. Proficient in customizing websites across various platforms and CMS, I leverage custom coding tools such as PHP and liquid. My experience spans collaboration with diverse themes and plugins, ensuring tailored solutions that align with unique business needs. Key Design Expertise: UI/UX UX Research User Flow Wireframing (Low, Medium, High Fidelity) Prototyping Responsive Design Design Tools Mastery: Figma Adobe XD Adobe Photoshop Sketch InVision Versatile CMS Development: WordPress Shopify Wix Squarespace Webflow Magento Opencart BigCommerce Drupal Weebly Joomla Comprehensive Web Development Skills: HTML CSS JavaScript Bootstrap Framework PHP Laravel Yii CodeIgniter Custom Development Expertise: React React.js Node.js Express.js Next.js Nuxt.js HeadlessCMS API Development Rest API JSON Effective Database Management: MongoDB SQL PL SQL SQL lite Oracle If you're seeking an exceptional professional to elevate your brand, let's schedule a discovery call. I am eager to exchange ideas and collaborate on a solution that will make your business stand out in the ever-evolving digital landscape. Best Regards, menos
Contratar anisamushtaq001
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Hi I am a skilled front-end and back-end web developer with on-the-job experience with technologies like HTML, CSS, JavaScript, TypeScript, React.js, Next.js, PHP and many more. Also I have done many Website Design and UI/UX Design such as e-commerce design projects. My main skill is to stay constantly in contact...Hi I am a skilled front-end and back-end web developer with on-the-job experience with technologies like HTML, CSS, JavaScript, TypeScript, React.js, Next.js, PHP and many more. Also I have done many Website Design and UI/UX Design such as e-commerce design projects. My main skill is to stay constantly in contact with you, updating you on my progress and the difficulties I'm facing. I will respond to your feedback in real-time, and keep working at it until we are both satisfied with the result. I have been working for over two decades years with 5 years of professional experience. if you think your project will interest me, I will definitely take a look at it! Please initiate the chat so that we can discuss on your project. These are my skills. ⭐Python: ML, YOLO, Tesseract, Tensorflow, Django, Chatbot, Data Scraping ⭐Design: Website Design, UI/UX Design, Figma, HTML5, ⭐Front-end: Node.js, React.js, JavaScript, Next.js, Tailwind CSS, TypeScript.js, jQuery, Vue.js... ⭐Back-end: PHP, Nest.js, Redis, postman, REST API... ⭐Database: MySQL, MongoDB, PostgreSQL, SQLite ... ⭐Frameworks: Laravel, Wordpress, CodeIgniter, ... ⭐GIS: Three.js, Leaflet.js, Cessium.js, … ⭐Version Control: Github, Bitbucket Thank very much for your reading my profile. menos
Contratar mulps
