Hire the Best JavaScript Developers in California

Full-stack JavaScript developer with 1+ year of hands-on experience building production-oriented web applications using React, TypeScript, Node.js, and SQL databases. Experienced in designing scalable REST APIs, clean backend architecture, and maintainable frontend systems.

Here for the picky ones who require A+ quality full-stack web, mobile, and e-commerce solutions. I write clean, scalable Python and TypeScript code. I have an eye for great design, an extreme attention to detail, strong communication skills, and an efficient workflow. My results oriented nature does not allow me to stop work on your project until completion. Favorite industries: Fashion 🏄‍♂️ • e-Commerce 🛍 • Marketing 🗣 • Health 🧘‍♀️ • Travel 🛩 • Finance 📈 Experience includes (8+ years): • Engineering: End-to-end architecture and development of full-stack apps from concept to production • Product strategy: Defining product vision, roadmap planning, feature prioritization, and aligning technical execution with business goals • UX/UI: Designing intuitive user journeys, translating design files into pixel perfect code • Shopify: Storefront, theme, and app development • Performance and scalability optimization: Bottleneck identification, resolving N+1 queries, caching, database indexing, materialization, and denormalizations • Security: Role-based access controls and permission systems, JWT/OAuth implementations, input validation, rate limiting • Stripe: Billing integrations, platform marketplace development with Stripe Connect ... and more Primary tech stack: React • React Native • Django • PostgreSQL • GraphQL • Stripe • Shopify • Storybook • Nginx

I love to create clean & professional web development projects. I specialize in WordPress, WooCommerce, and PHP development. I am proficient in JavaScript and have expertise in React as well. My passion is working with technology and learning new things every day. It's a joy to program with PHP, JavaScript, and React, and it feels like a game to me 👨‍💻. My goal is to provide great value to those I work with, and make my work into an art. I want people who I work with to walk away feeling pleased, and knowing that doing business together was a great deal. ⭐️ 5-star Client Reviews 📜 Web Development University Graduate 🚀 Passionate about providing you with excellent results I love talking to people and communicating, and I want my clients to feel that they know everything they want to about what's going on in the project. I deliver projects on time and strive to provide service that exceeds your expectations. ⭐ What you can look forward to when working with me: ⭐ ⏱️ PROFESSIONALISM: I work to deliver products in a timely and impressive manner, always working and communicating with poise. ⛏️ HARD WORK: I want to show my clients that they can trust me to deliver what I promise, no matter what. 💠 INTEGRITY: One of my key pillars is Honesty, and also following the Golden Rule. I know that adhering to timeless principles is not only great for others, but that this is the best way to help myself achieve my dreams as well. Take a look at this example of one of my ✨Client Reviews✨, to get a feel for what you can expect from me: "Thank you Omar for your detailed work. You are truly a professional. I believe I will work with you again since you are experienced JavaScript developer. You don't need detailed job explanations, you know what to do." - Alperen Durmus, Full-Stack Developer I appreciate you taking the time to view my profile, and I look forward to working with you to make your next project stellar! 📲

𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗡𝗼𝗱𝗲.𝗷𝘀 | 𝗡𝗲𝘅𝘁.𝗷𝘀 | 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 | 𝗣𝗼𝘀𝘁𝗴𝗿𝗲𝗦𝗤𝗟 | 𝗔𝗪𝗦 | 𝗔𝗣𝗜 𝗜𝗻𝘁𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 | 𝗠𝗘𝗥𝗡 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 I am a Senior Full Stack Developer with 10+ years of experience building modern, scalable and high-performance web applications from frontend to backend. I specialize in React.js, Next.js, Node.js, and PostgreSQL, delivering complete end-to-end solutions with clean architecture, responsive design, and seamless API integrations. My focus is on building full stack products that work beautifully on the frontend and scale reliably on the backend. I have worked on healthcare, fintech, logistics and SaaS platforms, handling everything from pixel-perfect UI to database design, REST API development, and cloud deployment. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝟭- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗙𝗶𝗻𝘁𝗲𝗰𝗵 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 - Built fintech platform with virtual cards, wallet flows, and real-time dashboards - Developed REST APIs, database architecture, and responsive frontend UI - Managed complex app states including loading, errors, modals, and empty states Skills: React.js, Next.js, Node.js, PostgreSQL, REST API, TypeScript, Material UI 𝟮- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗟𝗼𝗴𝗶𝘀𝘁𝗶𝗰𝘀 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 - Built logistics platform with shipment tracking, booking flows, and operational dashboards - Designed scalable REST APIs and backend business logic - Delivered responsive, maintainable full-stack architecture Skills: React.js, Next.js, Node.js, Express.js, PostgreSQL, AWS, TypeScript 𝟯- 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 - Developed healthcare web app with frontend + backend ownership - Built REST APIs, database management, and responsive UI architecture - Worked long-term with US client on ongoing feature development Skills: React.js, Node.js, PostgreSQL, REST API, TypeScript, AWS 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 - React.js, Next.js, JavaScript (ES6+), TypeScript - Redux, State Management, Component-Based Architecture 𝗨𝗜 & 𝗦𝘁𝘆𝗹𝗶𝗻𝗴 - Tailwind CSS, Material UI, Responsive Web Design - Pixel-Perfect UI, Cross-Device Development 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 - Node.js, Express.js, Nest.js, Python, Flask - REST API, GraphQL, WebSockets, Microservices 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 - PostgreSQL, MongoDB, MySQL, Redis - Database Design, Query Optimization, Data Modeling 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 - AWS, Docker, CI/CD - Vercel, Heroku, Azure, Firebase 𝗧𝗼𝗼𝗹𝘀 & 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 - GitHub, Jira, Trello, Agile/Scrum - Figma, Cross-Functional Team Collaboration 𝗙𝗹𝗲𝘅𝗶𝗯𝗹𝗲 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 I work across multiple time zones and adapt to full-time, part-time, or milestone-based projects, ensuring clear communication and on-time delivery. 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? ✅ 10+ years of Full-Stack experience across frontend and backend ✅ End-to-end ownership, from UI design to database and cloud deployment ✅ Clean, scalable, and maintainable code across the entire stack ✅ Experience across fintech, healthcare, logistics and SaaS ✅ Reliable, client-focused developer committed to on-time delivery 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 Full Stack Developer, MERN Developer, React Developer, Next.js Developer, Node.js Developer, JavaScript Developer, TypeScript Developer, REST API Developer, PostgreSQL Developer, AWS Developer, Python Developer, Backend Developer, Frontend Developer, Web Application Developer, SaaS Developer, Fintech Developer, Healthcare Platform Developer, Logistics Platform Developer, Responsive Web Design, API Integration, Cloud Deployment

I am a senior full stack developer with experience in all the technical areas you need. I have extensive experience in: 1. AI development, Chatgpt, LLM 2. Complex websites and webapps 3. Mobile app development (iOS, Android) 4. Software as a Service (SAAS) developments 5. Custom ecommerce 6. UIUX and design On the technical side I like using Django for the backend as python is well suited for web and AI developments. Frontend I like Vue or React. For mobile apps, I like React Native or Flutter although I can also do native code. I also have experience building and managing cloud servers for your project. My team has AWS and Azure certifications. I will be available *after* your project is completed for continued support. Satisfaction guaranteed. I'm located in Southern California (PST) for easy communication.

I have expert knowledge of JavaScript, TypeScript, React, HTML5 & CSS3. I have specialized in JavaScript over the last decade, and my accomplishments run the gamut from flashy portfolio sites to robust single-page applications using current best practices for front-end development. I have extensive experience developing for Ruby on Rails, Node.js with Express & Next.js. I have worked with databases including MySQL, PostgreSQL & MongoDB and have recently adopted Prisma as my JavaScript ORM of choice. I am adept at designing and consuming various styles of APIs, including REST & GraphQL. I am passionate about doing the best possible work, and I code using the most modern technologies available. I am a very strong communicator and can discuss requirements with technical or non-technical team members with equal facility. I pursue test-driven development and am especially fond of React Testing Library.