Hire the best JavaScript Developers in San Francisco, CA
Check out JavaScript Developers in San Francisco, CA with the skills you need for your next job.
- $70 hourly
- 5.0/5
- (23 jobs)
I am a highly skilled and experienced web developer with 8 years of experience in front-end and back-end technologies. With a strong foundation in various programming languages, frameworks, and tools, I excel in building robust, scalable, and user-friendly web applications that meet the unique needs of clients. My expertise lies in leveraging cutting-edge technologies and best practices to deliver high-quality solutions that drive business growth and exceed client expectations. Key Skills: 1. Front-End Development: - Proficient in HTML5, CSS3, and JavaScript for building responsive and interactive user interfaces. - Experience with modern front-end frameworks/libraries such as React.js, Angular, or Vue.js. - Knowledge of UI/UX principles and design patterns to create visually appealing and intuitive web experiences. 2. Back-End Development: - Strong understanding of server-side languages such as Node.js, Python, PHP, or Java. - Experience with back-end frameworks like Express.js, Django, Flask, Laravel, or Spring Boot. - Database management skills, including SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases. 3. Full-Stack Development: - Ability to work on both front-end and back-end components of web applications. - Proficiency in integrating front-end and back-end systems, RESTful APIs, and microservices architecture. 4. Web Development Tools and Technologies: - Familiarity with version control systems (e.g., Git), package managers (e.g., npm, yarn), and build tools (e.g., Webpack). - Experience with testing frameworks (e.g., Jest, Mocha) and continuous integration/continuous deployment (CI/CD) pipelines. - Knowledge of web performance optimization techniques, browser compatibility issues, and debugging tools. 5. Problem-Solving and Critical Thinking: - Strong problem-solving skills and the ability to analyze complex technical challenges. - Capacity to think critically, identify root causes of issues, and propose effective solutions in a timely manner. 6. Project Management and Collaboration: - Experience working in Agile/Scrum environments and collaborating with cross-functional teams. - Effective communication skills for interacting with stakeholders, gathering requirements, and providing project updates.
JavaScript
WixWebflowZapierEcommerceCRM AutomationAPIShopifyNode.jsPythonWeb ApplicationSQLCSSPHPWordPress - $80 hourly
- 5.0/5
- (17 jobs)
I am a result-oriented full-stack software engineer with valid experience in design, development, and testing across mobile, web, protocols and APIs. My journey in the world of development began 2014, and since then, I've immersed myself in various technologies, with a primary focus on JavaScript and PHP and mobile development. Technical Expertise: Front-End: I specialize in crafting seamless and user-friendly front-end experiences using modern JavaScript frameworks like React and Angular. My commitment to writing clean, modular, and scalable code ensures that the applications I build are not just functional but also maintainable. Back-End: On the server side, Node.js is my weapon of choice. I've architected and developed robust back-end systems, leveraging AWS, GCP, Node.js, TypeScript and PHP. Database Design: I possess strong expertise in database design and management, having worked extensively with both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases. My skills extend to optimizing database performance and ensuring data integrity. Mobile Applications: I'm well-versed in the mobile application development using frameworks like ReactNative, SwiftUI and Flutter. I've created and published 5+ applications to apple and google stores so far. Why Work With Me: Passion for Learning: I thrive on keeping up with the latest industry trends and technologies. Continuous learning is not just a professional goal but a personal commitment. Problem-Solving Mindset: I approach challenges with a problem-solving mindset, breaking down complex issues into manageable tasks and delivering effective solutions. Effective Communication: Communication is key to successful projects. I pride myself on my ability to convey technical concepts to both technical and non-technical stakeholders. I'm always excited to explore new opportunities, collaborate on innovative projects, and connect with fellow developers and industry professionals. I'm looking forward to the next exciting chapter in my journey, and I would love for you to be a part of it.
JavaScript
Amazon Web ServicesDjangoPythonFlutterFlowReact NativeAPI IntegrationMongoDBPostgreSQLMySQLVue.jsNext.jsReactNode.jsTypeScript - $75 hourly
- 5.0/5
- (19 jobs)
Are you looking to build an AI-powered MVP for VC funding or an AI agent to increase revenue, automate work processes, cut costs, or simplify your business operations through AI integration? Why Choose Me? 🌉 10+ years of experience working for leading Silicon Valley companies like Google, NGINX, F5, Craftable ✨ Top-1% Upwork Freelancer, 'Expert Vetted', I guarantee the strategic allocation of your AI/ML technology investment to deliver superior results for your enterprise. ⏳ 100+ 5-Star Reviews across Upwork and Fiverr (Fiverr Pro, Top Rated) What I do: 🛠️ Custom AI Chatbot Implementation with large custom knowledge base 💡 Natural Language Processing & Tailored Model Development (RAG, fine-tuning LLM) 👓 Advanced Computer Vision Solutions 🤖 Custom multi or single AI Agents 📊 Predictive Analytics 📈 Personalized Recommendation Systems 🔄 Automation Process Optimization How can we succeed together: 1. Research/Planning (Discovery): Together, we'll craft project ideas that perfectly fit your company, identifying the most impactful uses for AI & ML in your business. 2. Prototyping: By creating initial solutions and Proofs of Concept (PoCs), we'll boost efficiency and return on investment, saving both your money and time. 3. Implementation: I'll provide advanced AI & ML solutions aimed at elevating performance and creating real value, helping you quickly outshine competitors in your industry. 4. Launch: I'll deploy, fine-tune, monitor, and optimize effective solutions for continuous business growth and improvement. 📞 𝐓𝐞𝐥𝐥 𝐦𝐞 𝐚𝐛𝐨𝐮𝐭 𝐩𝐫𝐨𝐛𝐥𝐞𝐦 𝐲𝐨𝐮 𝐡𝐚𝐯𝐢𝐧𝐠 𝐧𝐨𝐰 & 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 I offer a complimentary consultation on your project. Reach out to me, and let's elevate your business with AI. This is what clients have said: “We had an excellent AI bot integrated into our web app, which was delivered promptly and performs superbly. This software engineer gets a perfect score of 10 out of 10!” @Monica, Founder - Klimt Creations “The quality of the work I received was absolutely extraordinary. I genuinely feel like I paid less than what his services are worth. Such incredible talent. Arthur is truly unique and a master at what he does. He posed very important questions and customized the final product to suit my preferences perfectly. A true genius!” @Luka, Founder - Perimeter “Absolutely phenomenal work, I would highly recommend this freelancer. He's been one of the best I've ever hired. Very high quality process and deliverables.” @Damiano, Chief Growth Officer - BrandButterMe ______________________________________________________________________________ Tech Stack: - Generative AI (OpenAI, ChatGPT, API integration, GPT-3 through GPT-4, TensorFlow, PyTorch, LangChain, Open-source LLMs like LLaMA2 and Falcon LLM) - AI agents (Crew AI, LangGraph, LangChain, Llamaindex, Autogen) - Computer Vision (Keras, TensorFlow, OpenCV) - Comprehensive Data Science & ML Knowledge (Natural Language Processing, Chatbot Development, Amazon Web Services, Model optimization, NLP Model Fine-Tuning) - Savvy in AI Avatars and Voice Interaction (Voice Synthesis, Text-to-Speech, Speech-to-Text, Voice Cloning) - Backend Web Development Skills (Python, FastAPI, Flask, Node.js, Express, Docker, GraphQL, RESTful APIs, FastAPI) - Frontend Web Development Expertise (HTML, CSS, React, Redux, Next.js, ES6, Webpack, JSS, WebSockets, TypeScript)
JavaScript
FigmaWeb DevelopmentNode.jsWebflowReactLangChainTensorFlowLlama 2ChatGPTHTMLPython - $45 hourly
- 4.9/5
- (46 jobs)
🌟 Elevate Your Project with an Upwork Expert-Vetted Developer! 🌟 Are you looking for a top-tier developer who enhances user experiences, maximizes ROI, and speeds up product launches? Do you appreciate clear communication and an unwavering dedication to success? Your search ends here—I’m ready to bring your vision to life. 🔥 Upwork Expert-Vetted: Ranked among the top 1% of freelancers, recognized for outstanding skills and professionalism. 🔥 Experienced Software Engineer: Holding a Master’s in Computer Science with over a decade of expertise in web and mobile development. 🔥 CTO at Code & Cakes: Leading a globally recognized agency with a flawless 5-star rating on Clutch. 🔥 Ex-Founding Engineer at a Y Combinator-backed startup: Contributed to a successful exit. 🚀 What I Offer: • Full-Stack Proficiency: Skilled in JavaScript, TypeScript, ReactJS, NextJS, Node.js, NestJS, Golang, Rust, Python, and beyond. • Fast Learner: Quick to adopt new technologies, always staying ahead of industry trends. • Reliability & Accuracy: Ensuring high-quality, on-time delivery. • Strategic Thinker: Always asking “Why?” and “What’s the purpose?” to drive the best results. 🔧 Technical Expertise: • Programming Languages: JavaScript, TypeScript, Golang, Rust, Python, Solidity, Bash, HTML5, CSS3, SQL • Frontend: ReactJS, NextJS, Vue3, NuxtJS, Angular, Svelte, Tailwind, Mantine, Sass, Web3.js • Backend: Node.js, Express, NestJS, Loopback, Django, GraphQL, gRPC, REST API • Databases: PostgreSQL, MySQL, Redis, Clickhouse, MongoDB, Firestore, Apache Cassandra • Mobile Development: React Native, Flutter, Android, iOS • Infrastructure & DevOps: AWS, Azure, GCP, Firebase, Docker, Kubernetes, Terraform, Jenkins, Git • AI/ML: OpenAI GPT-4/GPT-o, Anthropic, AWS Bedrock, TensorFlow, PyTorch, Machine Learning, Data Science • Blockchain: Ethereum, Solidity, Web3.js, NFTs, DeFi, Cryptocurrency • Cybersecurity: Ethical Hacking, Penetration Testing, Secure Code Review 📣 Keywords: Senior Software Engineer, Full Stack Developer, AI Developer, AI Engineer, AI App Developer, AI Agent Developer, AI Bot Developer, Machine Learning Engineer, Data Scientist, Software Engineer, Backend Developer, Frontend Developer, DevOps Engineer, Cloud Engineer, Mobile Developer, Web Developer, Blockchain Developer, Cybersecurity Engineer, Ethical Hacker, Penetration Tester, Natural Language Processing Engineer, Computer Vision Engineer, Deep Learning Engineer, Reinforcement Learning Specialist, Predictive Analytics Specialist, AI Model Integration Specialist, API Integration Specialist, Cloud Infrastructure Engineer, Site Reliability Engineer, Android Developer, iOS Developer, AI Researcher, Automation Engineer, JavaScript, TypeScript, Python, Golang, Rust, ReactJS, NextJS, Vue3, Angular, Svelte, Node.js, NestJS, NX/JS, Express, Loopback, Django, GraphQL, gRPC, REST API, PostgreSQL, MySQL, Redis, MongoDB, Firestore, Apache Cassandra, Docker, Kubernetes, Terraform, AWS, GCP, Azure, Firebase, Jenkins, Solidity, Ethereum, Web3.js, NFTs, DeFi, Blockchain, Blockchain Development, TensorFlow, PyTorch, OpenAI, GPT-4, AWS Bedrock, Anthropic, AI App Development, AI Development, AI Agent Development, AI Bot, AI Model Integration, AI-Generated Code, Natural Language Processing (NLP), Computer Vision, Neural Networks, Deep Learning, Reinforcement Learning, Supervised Learning, Unsupervised Learning, Ethical AI, Predictive Analytics, Cybersecurity, Ethical Hacking, Penetration Testing, React Native, Flutter, Android Development, iOS Development, API Integration, Web Development, Mobile Development, Stripe, Git, Chatbot Development, BigCommerce, Ecommerce Website, HTML5, OpenAI API, LLM Prompt Engineering, Model Training, Java, Android App Development, Smartphone, Shopify, Firebase Realtime Database, Database Architecture, Web Application, Prototyping, HIPAA, Compliance, Information Security, Shopify Apps, Shopify Templates, Shopify Plus, Shopify Theme, Full-Stack Development, Artificial Intelligence, Machine Learning. 🎯 Let’s Build Something Great: Ready to take your project to the next level? Reach out, and let’s exceed expectations together. Leverage an Upwork Expert-Vetted Developer to bring unmatched value to your project!
JavaScript
ChatGPTMicrosoft ExcelAPI IntegrationReact NativeWeb ApplicationNext.jsChatbot DevelopmentAPIArtificial IntelligencePythonReactWeb DevelopmentTypeScriptNode.js - $50 hourly
- 4.9/5
- (1 job)
As a Full-Stack Developer, I have 5+ years of experience in Python, Django, JavaScript, and React. I specialize in building high-performance web applications and AI/ML models that deliver measurable business outcomes. My expertise also extends to 3D visualization and design, which allows me to provide innovative solutions that integrate technology with design. **Core Expertise:** - Python & Django for scalable backend development - JavaScript, React, and Three.js for interactive frontend experiences - AI/ML with TensorFlow and PyTorch for intelligent systems - 3D modeling and rendering with Blender for creative solutions **Project Highlights:** - Developed a custom AI/ML solution that reduced processing time by 30%. - Built a complex Django-based platform for managing moving service contractors, improving client and contractor engagement. - Created 3D visualizations for a web-based application, enhancing the user experience and providing interactive product showcases. **Why Choose Me?** I am committed to delivering results through clear communication, thorough planning, and agile execution. Whether you need a full-stack developer, an AI/ML specialist, or 3D visualization, I can bring your vision to life.
JavaScript
Showcase Website3D File FormatThree.jsReact3D Product RenderingParametric DesignAutomation3D AnimationPython3D RenderingBlenderGrasshopper 3D3D ModelingRhinoceros 3D - $75 hourly
- 4.9/5
- (196 jobs)
Have a great idea for a web or mobile app but not sure where to start? Book a consultation today to strategize the best way to bring your idea to life! -Top 1% in app design & development by Upwork -Trusted by Harvard, Yamaha, UC Berkeley & Samsung -Clients' apps have raised +330M USD and made it to Forbes. I specialize in designing and developing web and mobile apps from scratch. About a decade ago, I launched my own application and startup called SchooLinks with no tech background... Hired the wrong freelancers, used the wrong tech stack, and made many other expensive mistakes along the way. I learned that "cheap" can be expensive in app development. I also learned how to effectively validate your idea before building an app— a crucial step that many people tend to overlook. While anyone can design or code, very few can create products that actually help you test if there's a market for your idea. This is critical when developing MVPs (Minimum Viable Products) and POCs (Proof of Concepts), where the right approach can make the difference between success and costly failure. After 2 years, I was able to finally launch SchooLinks. It has raised over $90 MM USD and became the industry leader of its category. This experience led me to want to help other fellow entrepreneurs and business owners avoid the expensive mistakes I made. I went back to school at UC Berkeley, where I became the VP of Technology for Entrepreneurial Association. During my time there, I helped dozens of startups launch their apps! As a result, I created Geekbears, my app design & development agency. Our clients have raised over $330 MM USD with web and mobile apps we helped them launch. You can count on me being upfront when I don’t think we are a good fit and point you in the right direction. Schedule your consultation today! My preferred tech stack includes: Figma, Flutter, NodeJS, Angular, AWS & MongoDB. I also have solid experience integrating API’s, including Stripe, ChatGTP and Twilio.
JavaScript
User AuthenticationSoftware DevelopmentAndroid App DevelopmentiOS DevelopmentUser Experience DesignUX & UIFront-End DevelopmentMobile App DevelopmentWeb ApplicationiOSAndroidUI/UX PrototypingMobile App RedesignMobile App Design - $128 hourly
- 5.0/5
- (6 jobs)
I'm Tom, a specialist in AI-powered business automation focusing exclusively on enterprise and growth-stage companies. I help leadership teams transform their operations by implementing secure, scalable automation solutions that deliver measurable ROI within 90 days. My expertise centers on creating custom automation systems for: • Complex approval workflows • Document processing and data extraction • Secure data handling and compliance • Rapid prototyping for POC and pilot projects Typical client results include: • 70% reduction in manual data entry • 85% faster document processing • $100K+ annual cost savings • 98% accuracy in automated workflows I specialize in private, secure implementations where sensitive data never leaves your control. My solutions are built for scale, ensuring your automation investment grows with your business. Investment levels: • Strategic projects starting at $15,000 • Monthly retainer: $7,500 • Hourly consultation: $147 I selectively take on 2-3 clients per quarter to ensure dedicated attention and exceptional results. Let's discuss how automation can transform your operations if you're looking for a strategic partner rather than just a developer. Note: I typically respond to inquiries within 3 hours during business hours (PST).
JavaScript
DialogflowGPT-JChatbot DevelopmentAmazon LexSvelteManyChatAlexa Skills KitDialogflow APINode.jsVue.jsChatGPTTypeScriptGPT-3 - $50 hourly
- 5.0/5
- (1 job)
I have worked as a Software QA engineer for many years in numerous esteemed and multinational companies across Europe and America. During this period, I have undertaken significant projects, delivering each one flawlessly, on time, and with high quality. I have also managed many valuable projects, providing high confidence to companies during decision-making processes as Project Lead. Beyond the realm of professional work, as Software Engineer, I have continuously developed myself through Bachelor, master's, PhD in engineering fields and online courses like Full-stack Developer and React Native Apps, staying abreast of technological advancements over time. Additionally, I have enriched my life by exploring over 50 countries across Europe, Asia, and America, discovering new places, and immersing myself in diverse cultures. All these life experiences have enabled me to successfully overcome every challenging and complex project I have undertaken. They have allowed me to make crucial and swift decisions in a short amount of time, instantly apply what I have learned, and achieve success in difficult tasks throughout my career.
JavaScript
React NativeApache KafkaSoftware QARedisSelenium.NET CoreElasticsearchNode.jsReactAPICSSHTMLPythonC# - $50 hourly
- 4.8/5
- (147 jobs)
💎Top Rated freelancer for the past 3 years. ⭐More than 110 completed projects on Upwork 👍with a 100% satisfaction rating! 📦 Services include - Design, Development, and Quality Assurance with collaboration ⌚ Willing to work based on my client's time zone needs for optimal results Looking for a great website to achieve your dream business? Let me help you with great results with a timely, professional, accurate execution of your vision. 𝐌𝐘 𝐒𝐊𝐈𝐋𝐋𝐒: • Web design (UX/UI); • User flow creation; • Wireframing; • UX strategy; • Website design; • E-commerce design; • Logo creation; • Branding / corporate Identity creation; • Style & colour guideline creation; • Landing page design; • Web application/SaaS product design; • Dashboard design; • Website development •CMS development •Full Stack (frontend & backend) web development 𝐓𝐎𝐎𝐋𝐒: • Figma • InVision • Sketch • Adobe XD • WordPress •Webflow •Shopify •Wix •Squarespace • HTML 5/CSS 3 (& frameworks) •JavaScript •PHP 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄: Website, Website developer, UX design, Customer Journey Design, UI Design, Mobile, Design, Mobile Design, website design, wireframes, wireframing, design, animation, Figma, AdobeXD, User interface design, Webdesign, Marvelapp, InVision, WordPress Website, WordPress theme, WordPress migration, WordPress, WordPress design, GraphicDesign, Logo Design, PSD to WordPress, WooCommerce, Website Customization, Landing page, Landing Pages Design, Shopify, Shopify design, Shopify Development, Shopify templates, Shopify Customization, Shopify Migration, eCommerce web design, EcommerceSolutions, Mobile Friendly, User Experience, User Experience Design, GUI design, responsive web development, Responsive Design, PSD to HTML, PSD to Shopify, Theme setup, Custom Development, Speed Optimization, Site Speed Optimization, Divi, Elementor, Visual Composer, Front End, Front End Development, Back End, CMS, SEO, Website Redesign, Interactive Design, Cross Browser, Website Maintenance, Content Management, Plugin Development, Theme Customization, Website Security, API Integration, Payment Gateway, Payment Gateway Integration, HTML5, CSS3, JavaScript, jQuery, Bootstrap, PHP, WebFlow, SquareSpace, Wix, Mobile responsiveness, Tablet responsive website.
JavaScript
WordPress ThemeShopify ThemePSD to HTMLWeb DesignWooCommerceAdobe XDPHPShopifyFigmaWordPressEcommerce WebsiteCSS 3HTML5Adobe Photoshop - $40 hourly
- 4.9/5
- (58 jobs)
Top Rated Plus full-stack engineer here who has experience working on web/mobile applications development with the latest technologies, and I'm always happy to discuss my client's needs and find the best solutions for them. I have been working professionally as both a front-end and back-end developer for 9+ years. Technologies I work with: - PHP (Laravel, Codeignitor & Symphony) - WordPress & Woocommerce - Shopify Stores & Apps - WIX | Squarespace | Bubble - JavaScript - Graphql & Express - Nextjs & Nestjs - React.js & Node.js - React Native - MySQL, MongoDB, Firebase - Various AWS services - Git, GitHub, Bitbucket - GCP, Digital Ocean, Heroku, Netlify, Firebase, Rackspace I'm focused on the revolutionary stack and have a firm grip over MERN & MEAN stack development. To whom I help: - Multi Vendor E-commerce Businesses - Entrepunures - Startups - Maintenance - Scalability - SaaS Companies - MVPs for Funded Startups - Small to Large Businesses Pain points that I help solve: - You need to have a more efficient business by eliminating tedious manual labor and increasing your revenue by saving dozens of human hours. - You need to plan and build a web or mobile app from scratch. Some accomplishments: - $40 MM+ of funding for web/mobile apps I helped our clients launch - Ranked No.1 App Development Companies in San Francisco - Top 10 Best Mobile Development in San Francisco - Worked with clients like Samsung, Harvard, and Indeed What do I expect from my clients? - Having a solid idea of the vision they have and industry domain expertise - Having open and clear communication - Ability to provide feedback in a timely manner - Values integrity and relationships MY WORKING HOURS: 8 am - 5 pm (Pacific Standard Time), Monday – Friday. I look forward to learning more about your project. Please drop me a short line to find out how I can help you. You’ll hear back from me within one business day if not hours. I have good communication skills and always updated my clients on their ongoing work. I would love to work with you and build a useful product together. Best Regards, Awais Panhwar.
JavaScript
Smart ContractBlockchainSolidityReactWooCommerceLaravelWebsite RedesignHTML5Ecommerce WebsiteUI/UX PrototypingShopify PlusFront-End DevelopmentWordPress Development - $75 hourly
- 4.9/5
- (36 jobs)
✅ 5 Star Reviews ✅ 100% Job Success Rate ✅ Top Rated Plus Badge I specialized in developing high-quality web solutions, spanning across designing dynamic user interfaces and building scalable web applications that cater to complex business needs. Whether you're seeking to develop a cutting-edge SaaS platform or a custom-built website designed for client acquisition or branding, I offer a comprehensive suite of services to help businesses succeed online. 🟢 Professional Expertise: As a seasoned Full Stack Developer, I provide a broad range of services tailored to your unique digital requirements. My technical proficiency includes: ➛ Front-End Development: Building user-friendly interfaces using React.js, creating optimized web applications with Next.js, and crafting responsive designs with HTML, CSS, and JavaScript. ➛ Back-End Development: Developing efficient server-side applications with Node.js and Express.js, ensuring seamless data handling and application logic. ➛ Database Management: Expert management of both SQL and NoSQL databases with MongoDB and MySQL, offering reliable and efficient data storage solutions. 🟢 Specialized Services: My service offerings are designed to address various digital challenges: ➛ Custom Full Stack Web Solutions: I specialize in building bespoke web applications that go beyond basic functionality to include features like user authentication, API integrations, dashboards, and dynamic data-driven interfaces. ➛ SaaS Platform Development: From planning to deployment, I handle all aspects of SaaS development, providing businesses with scalable and secure cloud-based solutions. ➛ Responsive Web Design Services: Ensure your site performs flawlessly on any device with tailored responsive design techniques that improve engagement and user retention. ➛ Advanced API Integration Services: Enhance your applications with custom API integration, facilitating better connectivity and expanding functionality. ➛ Interactive 3D Experience Development: Using tools like Spline, I create interactive 3D experiences that engage users and make your web applications stand out. 🟢 What to Expect When Working with Me: Choosing to work with me means your project will be handled with the utmost attention to detail and dedication to quality. Here’s what I bring to every project: ➛ High-Quality Work: Every project is an opportunity to deliver excellence. Expect superior quality and performance in all aspects of your web development needs. ➛ Timely Deliverables: I respect your time and adhere strictly to deadlines, ensuring your project progresses smoothly and launches successfully. ➛ High Availability: Communication is key to successful projects. I am available to discuss your project needs, updates, and queries to ensure alignment and project success. ➛ Open Communication: Stay informed with regular updates and collaborative discussions to ensure your vision is accurately translated into digital reality. ➛ Organized Workflows: Through structured planning and execution, I manage projects efficiently from inception to completion. 🟢 My Portfolio: Explore my previous projects and witness the breadth of my capabilities at startercode.dev. Each portfolio piece exemplifies my approach to solving unique business challenges through innovative web solutions. 𝙍𝙚𝙖𝙙𝙮 𝙩𝙤 𝙎𝙩𝙖𝙧𝙩? 💪 If you’re looking for a developer who not only builds functional and attractive web applications but also focuses on delivering strategic business results, look no further. Contact me to discuss how we can transform your business ideas into successful digital solutions. 🚀
JavaScript
Full-Stack DevelopmentGSAPWeb ApplicationSQLFront-End DevelopmentNode.jsReactMongoDBNext.jsWeb DevelopmentPHPHTML5FigmaCSS 3 - $50 hourly
- 4.8/5
- (4 jobs)
🌟 Experienced Team Leader | CTO | Software Architect | Web3 & AI Expert|Django/python developer|Mobile flutter developer| 🌟 APIWORLD Hackathon 2024 Winner, Silicon Valley With over 15 years of leadership experience and a background as CTO in several U.S. startups, I bring deep expertise in software architecture, API development, and code review. I’ve successfully led and participated in more than 200 projects, teaching over 100 developers, and delivering scalable, high-quality solutions for businesses. Based in Silicon Valley, California, I stay at the forefront of technological innovation. What I Bring to the Table: • 15+ Years in Commercial Development: Specializing in Django for 15+ years, I design and build robust systems tailored to your needs. My stack includes JavaScript/Angular, HTML, CSS, Bootstrap, SASS, Docker, and more. • Full-Stack Expertise: Proficient with MySQL, PostgreSQL, MongoDB, Redis, RabbitMQ, and cloud technologies like AWS, ensuring the scalability and efficiency of your applications. • Mobile Development: Skilled in Flutter, Swift, and Java, creating cross-platform mobile apps that deliver seamless user experiences. Web3 & Cryptocurrency Solutions: • Over 200 projects in crypto exchanges, development of crypto gateways (USDT, BTC, ETH, SOL, XRP), and cashback services. • Expertise in Telegram bots and chatbots, automating customer interaction and boosting engagement. AI & ChatGPT Integration: • AI-driven solutions for business automation, including ChatGPT agents to streamline operations and enhance customer service. Team or Solo Development Options: • Whether you need an individual developer or a full development team, I provide flexible solutions to match your project requirements. Why Work with Me? • 12+ years as a team leader, mentoring and teaching over 100 developers. • Extensive experience with cutting-edge technologies like Web3, AI, and crypto development. • Based in Silicon Valley, with a deep understanding of the latest industry trends. Let’s discuss how I can help turn your ideas into reality! Feel free to reach out with any questions or to explore how we can collaborate.
JavaScript
Machine LearningTrading AutomationCrypto WalletCrypto Exchange PlatformLinuxAPIDjangoRESTful APICryptocurrencyPostgreSQLMySQLPython - $65 hourly
- 5.0/5
- (0 jobs)
Howdy! I am a full stack engineer who loves a difficult challenge to push me to my limits. I love being a software engineer because I learn new things every single day and I'm faced with unique challenges on the regular. But what truly excites me about building new applications is the opportunity for me to be creative and to build something beautiful with my own hands. As part of an interdisciplinary clinical team in my previous career, I learned to exchange expertise in order to provide patients with the best care possible. Now I use these same skills to act as a productive member of a development team; sharing the skills I have and absorbing the skills that I need in order to optimize outcomes. As a student at HackReactor, I obtained hard skills in JavaScript, React, Node.js, express.js, SQL, MongoDB, AWS and much more. As a software engineering mentor at Galvanize, I teach students in the Advanced SWE immersive these skills and other computer science fundamentals.
JavaScript
Tailwind CSSRESTful APICSSReactExpressJSAmazon DynamoDBAmazon Web ServicesMongoDBNext.jsNode.jsSQLHTMLBootstrap - $50 hourly
- 5.0/5
- (1 job)
- Master's Computer Science from Northeastern University - 3 years' experience in developing full-stack applications. - Coding Languages: Python, JavaScript, Java, C - Other Language/tool: HTML, CSS, R, TailwindCSS, Bootstraps, Jira, Docker - Framework: Flask, React, Node, Express, AWS DynamoDB, MongoDB, MySQL, AWS Chalice - Native fluency in English and Chinese - 1 year Start-up experience: - Set up CI/CD pipelines with AWS Code Pipeline - Developed serverless applications with AWS Lambda and API Gateway using the AWS Chalice framework, - Configured domain servers with AWS Route 53.
JavaScript
User Interface DesignAPI DevelopmentREST APIFigmaJiraAWS LambdaJavaFlaskGitCSSHTMLTypeScriptReactPython - $59 hourly
- 5.0/5
- (2 jobs)
I'm an engineer with varied experience with a passion for interactive media, simulation and video games. I believe in building on great open-source foundational technology, like the World Wide Web. I have an eye for clean, engaging design and take pride in creating solid and delightful software. I enjoy working closely with clients, rapidly prototyping and iterating towards their goals. Let's take your project to the next level!
JavaScript
Game DevelopmentPhysicsGame DesignBlenderLinuxAutomated TestingTechnical WritingSoftware Architecture & DesignWebsocketsHTML5ElixirPythonNode.jsTypeScript - $50 hourly
- 5.0/5
- (26 jobs)
Does your kid love Roblox and want to learn how to program? I can teach them! I have worked in the computer industry for over 20 years, including at Google, YouTube, Adobe, and several Silicon Valley startups. I am a passionate and experienced tutor who has been teaching for over 10 years. I have a degree in Computer Science and Electrical Engineering from Brown University. The programming skills your kid will learn in Roblox are transferable to other programming languages (such as Python or Javascript) they might want to learn. I can also teach these other languages. Roblox is also a fun way of moving beyond Scratch into a real programming language where you need to type your program and maintain multiple files. Every student learns differently and I tailor my teaching style to each student's individual needs. I am patient and encouraging, and I always strive to help my students succeed. I am also a great listener, and I am always willing to answer questions and provide support. I also worked in the Peace Corps in The Gambia as a volunteer high school computer teacher. In this role, I taught students how to program and also helped them develop their problem-solving and critical thinking skills. I am confident that my experience in the Peace Corps has made me a better tutor. I specialize in helping students new to programming but I am happy to have intermediate or advanced students too. I have a proven track record of success in helping students of all ages and abilities learn these subjects. I am confident that I can help your child achieve success in programming. (I also teach teens and adults) In addition to teaching Roblox, I can teach Python, Javascript, C/C++, and Arduino programming. I look forward to hearing from you!
JavaScript
LuaGame DevelopmentCoding LessonTeachingTutoringGoogle Apps ScriptScratchArduinoRoblox StudioCC++Python - $40 hourly
- 5.0/5
- (2 jobs)
FULL STACK DEVELOPER Accomplished Full Stack Developer with 5+ years of experience in crafting scalable web applications using TypeScript, React, Angular 14+ and RESTful APIs. Experienced in implementing micro-frontend architecture to modularize user interfaces for enhanced scalability. Proficient in leveraging AWS for CI/CD and cloud infrastructure management. Skilled in collaborating with design teams through Figma to translate concepts into intuitive user interfaces. Adept at debugging and troubleshooting complex application issues, ensuring optimal functionality and performance. Proven ability to thrive in fast-paced environments, collaborating seamlessly with cross-functional teams to deliver high-quality solutions
JavaScript
Next.jsExpressJSMongoDBNode.jsAngularReact NativeReactTypeScript - $40 hourly
- 5.0/5
- (3 jobs)
I am a Full-Stack Developer with 5+ years of experience in web and mobile application development. My expertise lies in building scalable and high-performance applications using Python, Ruby on Rails, and the MERN stack. A dedicated developer who crafts, builds, and flawlessly integrates high-performance applications 🚀 I focus on user-centric development, creating intuitive and responsive applications. My code is scalable and maintainable, following best practices for future-proof solutions. I thrive in Agile, collaborative environments, working closely with teams to deliver seamless solutions. With a problem-solving mindset, I resolve technical challenges and optimize performance. I specialize in seamless integrations and take end-to-end ownership, from ideation to deployment Tech Stack & Expertise: Frontend: React.js, Next.js, Redux Toolkit, Material UI, and TailwindCSS Backend: Python, Django, Ruby on Rails, RSpec, Node.js, and Express.js Databases: MySQL, NoSQL, PostgreSQL, MongoDB, and Redis Cloud Services: Docker, Kubernetes, AWS Lambda, EC2, and ECR Testing: Pytest and Capybara Payment Methods: Stripe, Paytm, PayPal, Square, and Amazon Pay Project Management: Jira, Slack, Trello, Git, GitHub, and Azure DevOps Looking for a dedicated developer who not only masters the technical aspects but also understands the broader impact on your business? Let's collaborate to turn your vision into a powerful, high-impact product. Lets Connect 🚀
JavaScript
FlaskDjangoPythonJenkinsMocha FrameworkExpressJSMERN StackNode.jsRuby on Rails StackCapybaraRSpecReactRuby on RailsRuby - $50 hourly
- 5.0/5
- (2 jobs)
Senior Software Engineer with a Product Manager Certification and 9 years of engineering experience, specializing in automation and AI. Leading test automation efforts at PTC, I've enhanced testing efficiency and managed automation projects across several products. My expertise spans computer vision, augmented reality, generative AI, and cross-platform testing for web, mobile, and desktop applications. As a product-oriented engineer, I'm always aiming to bridge technical solutions with business goals and customer needs. Open to new challenges and opportunities to drive product excellence.
JavaScript
Prompt EngineeringGenerative AICSSHTMLWeb DevelopmentConversational AIAutomationOpenAI EmbeddingsOpenAI APIArtificial Intelligence - $45 hourly
- 5.0/5
- (8 jobs)
Full Stack developer who worked at Nokia, Goodyear, worked at 2 FinTech startups and created social media apps, similar to Twitter for web developers (Yes 🙃 it does have free "Edit" button.) DM chat, avatars and image uploads in timeline, retweet feature, delete tweet (I use CRUD pattern for API calls.) Worked at several start-up companies in Web Development industry (Including lead UI developer at a project for GoodYear Tire Co.) and with skills developed there I decided to take Freelance path for now. Not being attached to a company gives me freedom I need. UI Web Developer proficient in React.js, Node.js, NPM, Babel, WebPack, JavaScript, some PHP. Solid knowledge of MySQL and MongoDB, Node.js, some Python. Primary experience is custom user interface development for large scale applications. Worked for Good Year tire company, DropShip Direct, and few others. Programming, developing new features from scratch, or upgrading or modifying existing code.
JavaScript
JSONMobile UI DesignTailwind CSSCSSChatGPTSocket.ioNext.jsMERN StackMobile WebMobile AppPHPMongoDBReactNode.js - $300 hourly
- 5.0/5
- (19 jobs)
Hi, I am a 25+ year Silicon Valley CTO providing software services. Programming since 1980, a hands-on and accomplished leader with a solid track record of creating novel, forward-thinking enterprise and consumer products for millions of users. Talent for establishing innovative decision frameworks, owning strategic roadmaps, and building and growing teams as a servant leader. History of overseeing multimillion-dollar engineering operations, driving complete SDLC process, and commanding product management, systems architecture, DevOps, and QA functions. Passion for maximizing efficiency with repeated success managing large-scale properties and systems, including the US Census, Wells Fargo, Toyota, and Kaiser Permanente. I have delivered dozens of mobile apps, APIs, SaaS / PaaS platforms in B2B and B2C in traditional markets, social networks, health tech, blockchain, and cryptocurrency. Experience in SAMD / FDA CFR 21 part 11, GDPR, SOC2 HIPAA HITECH. Unix/Linux 30 yrs, Windows/Server 30 yrs, C/C++ 30 yrs, Java 25 yrs, Python 27 yrs, JavaScript 26 yrs, PHP 27 yrs, C#/.NET 20 yrs, Ruby 15 yrs, Go 10 yrs, Erlang 18 yrs, Android: 12, iOS/Objective-C 12, Swift 6, Kotlin 6, React / React Native 7, Spark & Tensorflow 7yrs, Kafka 6 yrs, Solidity 5 yrs, Rust 4, MySQL 22 yrs, PostgreSQL 16 yrs, MongoDB 14, MS-SQL 25, Oracle 25, DB2 25, Sybase 25, Cassandra 9 Neo4j 7 yr Power BI 7 yr, Snowflake 4 yr, Tableau 9 yr AWS 14 Years Azure 8 Years Google Cloud 8 Years
JavaScript
MongoDBOracleMySQLPostgreSQLDevOps EngineeringSaaS DevelopmentAWS ApplicationSoftware Architecture & DesignReactPythoniOSAndroidDevOpsSaaS - $85 hourly
- 5.0/5
- (5 jobs)
I'm a developer with a diverse range of experiences, having been a builder, consultant, and involved in product sales. I understand that the success of a project lies not in the technology itself but in identifying and solving the right problem for yourself or your business. I bring a wealth of experience in various programming languages, frameworks, data modeling in SQL and NoSQL databases, and CI/CD tooling. Additionally, I have expertise in working with Retrieval-Augmented Generation (RAG) models and Artificial Intelligence/Machine Learning (AI/ML) technologies, having applied RAG models, which combine traditional language models with information retrieval systems, to enhance the quality and accuracy of generated outputs by incorporating external knowledge sources. Projects: - Cohesive AI: Utilized Whisper, GPT-3.5 and Scenario.com to generate automated summaries of sales calls, update data in Salesforce and attach customers to open feature requests to reduce data duplication and improve data quality. - Barcade.ai: A web based arcade for LLM powered agents to compete on games. The goal being to introduce audience interaction into the games to build more engaging experiences where the agents have to adapt to audience controlled environments.
JavaScript
AutomationTerraformVault by HashiCorpCI/CDReactPythonGolangApache Spark - $99 hourly
- 5.0/5
- (16 jobs)
Review my work by technology, industry, company or year from my portfolio @ taylormadetraffic.com. Also review my Open Source project and AI agent @ oaexample.com/oa/readme (including $500 full stack solution: oaexample.com/oa/consulting)
JavaScript
OpenCVSciPyDrupalExpressJSReactTypeScriptPHPElasticsearchPythonMachine LearningTensorFlowComputer VisionSQLNode.js - $90 hourly
- 4.8/5
- (177 jobs)
I'm Melissa Hong, the founder of OMG Code, a tech company specialized in web and app development. I'm honored to be a Top Rated Plus freelancer in Upwork's Customer Advocacy program, boasting a flawless Job Success Rate and holding the prestigious Top Rated Plus Badge. Additionally, I proudly serve as a Wix Community Leader and a Velo Certified Official Wix Legend Partner, bringing extensive experience in front-end and back-end web and mobile design and development. Throughout my career, I have achieved significant milestones. I have earned over $400,000 in earnings, received more than 90 five-star reviews, and successfully completed over 150 jobs, totaling an impressive 4500 hours of work. Recognized by Upwork, I have been named among the "Top 15 Wix Specialists," as well as the "27 Best Javascript Developers," "Top 27 Best Freelance PHP Developers," "Top 8 iPhone App Developers," and "Top 11 Android App Developers" for hire near San Francisco. In addition to these achievements, I have been invited as a speaker for respected organizations such as Wix, Upwork, Women Who Code, and Coding Dojo. Furthermore, I have contributed as an instructor and blogger for Udacity, collaborating closely with Stanford University. Follow your dreams, don't give up, and believe in yourself!
JavaScript
AI BotAI DevelopmentPrompt EngineeringPythonMachine LearningChatGPT PromptFlutterWeb ApplicationiOS DevelopmentWixAndroid App DevelopmentWeb DesignApp DevelopmentMobile App - $185 hourly
- 5.0/5
- (44 jobs)
I am a California based NFT smart contract developer/web3-DApp developer/NFT consultant/advisor and have successfully launched over 10 NFT projects for my clients. I have provided consultation for over 20 NFT clients too. I have also worked on my own 10k generative ERC721 NFT art project. I was involved in every aspect of the NFT project from start to finish including contract development, twitter/discord marketing, generating the 10k art illustration, uploading images to IPFS, website design, integrating web3 for website minting, etc. I look forward to hearing from you and learning more about your project! Eugene
JavaScript
BlockchainEthereumFront-End DevelopmentBlockchain DevelopmentWebsiteWeb DesignCryptocurrencyDAppsSmart Contractweb3.jsSolidityWeb DevelopmentReact - $80 hourly
- 5.0/5
- (8 jobs)
Primary technologies that I work with are Python/Django, ReactJS, AngularJS, NodeJS, and React Native.
JavaScript
SwiftReact NativeAndroidSketchCSS 3DjangoAngularJSReactDockerNode.jsRuby on Rails - $125 hourly
- 4.9/5
- (43 jobs)
I am an iOS developer based in San Francisco. I've built several highly rated apps on the AppStore and I'm looking for relatively small well-defined projects that I can quickly finish. I know both Swift and Objective-C and can build your app from start to finish. I like solving problems and getting things done. I have a CS degree and over 15 years of Software Engineering experience.
JavaScript
iOS DevelopmentDjangoSwiftHTML5Python Want to browse more freelancers?
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