Hire the Best Web Application Designers

Web application developer with 8 years of experience building web applications. Certified Caspio developer with 5 years of experience building small to complex web application using the Caspio platform. Have experience with the following: -HTML, CSS, PHP, JavaScript, jQuery, MySQL, Database and system design, Caspio platform expert, WordPress/Wix, Web design, GIT, Agile methodology. I can also lead a project, estimate development hours and create a timeline to set customer expectations.

If you're building an AI app, SaaS platform, internal tool, or automation system and need someone who can turn your idea into a working product quickly, you're in the right place. I help founders, startups, and businesses build AI-powered applications that are fast, scalable, and ready for real users. Most MVPs fail because they're rushed without proper structure. Features get added quickly, but the system becomes difficult to maintain, expensive to scale, and frustrating for users. My approach is different. I focus on building complete systems that work together seamlessly from the start, so you can launch confidently and grow without constantly rebuilding. What I Can Help You Build: ✅ AI SaaS Applications ✅ Startup MVPs ✅ Customer Portals & Dashboards ✅ Internal Business Tools ✅ AI Chatbots & Assistants ✅ Workflow Automation Systems ✅ Client Management Platforms ✅ CRM & Operations Systems ✅ API Integrations ✅ Database Design & Optimization Tech Stack: • Lovable • Base44 • Supabase • OpenAI • Claude • n8n • Make • JavaScript • APIs & Webhooks Why Clients Work With Me: ✔ Fast MVP Development ✔ Clean, Scalable Architecture ✔ Strong Communication ✔ Business-Focused Solutions ✔ Long-Term Partnership Mindset I don't just build features. I help you build a product that solves real problems, supports real users, and creates real business value. Whether you're validating a startup idea, launching a new SaaS product, automating operations, or improving an existing system, I can help you move from concept to launch efficiently. Send me a message with your project details, and I'll help you identify the best structure, technology stack, and next steps for a successful build

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma

Enthusiastic, talented Senior Software Engineer with excellent programming skills, strong problem-solving abilities, quality-driven and customer-focused. Passionate not only about technology but also about applying it to improve people’s lives in new and innovative ways. Experienced in handling the entire software development life cycle, and used to working with a wide variety of technologies. A constant learner who motivates their peers. Self-motivated, positive, proactive and pragmatic, communicative and collaborative, and ready to take responsibility and ownership. EXPERTISE • Strong experience with Python, Go, Java, C, C++ and Lua; • Good Knowledge of Ruby and Js; • Solid experience with object-oriented design, and design patterns; • Experienced with UNIX operating system, including Linux for development and basic administration; • Familiarity with databases such as PostgreSQL, Oracle, MySQL and PL/SQL; • Experienced with OpenGL, 3D graphics, and ima​ging; • Great Computer Vision and OpenCV experience; • Good experience working with GUI development such as QT, Swing, and IUP; • Familiar with Web development: J2EE, Spring MVC, Tomcat, JSP, Servlets, JSF, HTML, CSS; • Good Knowledge with Multi-threaded and Client- Server programming; • Strong experience in design, unit testing, reviews, system testing, and requirements; • Experienced with all phases of product development lifecycle; • Experienced with source control systems like CVS, Subversion, JIRA, Buildbot and Hudson; • Familiar with agile methodologies as well as software planning and estimation techniques; • Strong commitment to life-long learning, enjoying teaching and mentoring; • Team oriented, encouraging the use of conventional procedures, practices, and tools; • Excellent written and verbal communication skills (English and Portuguese).

Hi, I'm Dmytro. I'm a Front End developer with more than 8 years of experience building web and mobile applications for startups, product companies, and growing businesses. As a Front End developer, I've worked on MVPs, SaaS platforms, e-commerce products, internal business tools, and customer-facing applications used by thousands of users. My primary focus as a Front End developer is creating fast, responsive, and user-friendly applications using modern JavaScript technologies. I enjoy transforming complex requirements into clean, maintainable solutions that provide real value to users and businesses. Throughout my career as a Front End developer, I've worked closely with designers, product managers, backend engineers, and business stakeholders to deliver products that are both technically solid and enjoyable to use. I believe a successful Front End developer should understand not only the code but also the goals behind the product. Technologies I work with As a Front End developer, my main stack includes: React Next.js TypeScript JavaScript React Native Angular Vue.js HTML5 CSS3 Tailwind CSS Material UI (MUI) SCSS Webpack Vite Node.js Over the years, I've helped companies hire a reliable Front End developer who can contribute quickly, improve existing codebases, and build new features with confidence. What I can help with As a Front End developer, I can help with: Building modern web applications from scratch Developing scalable React and Next.js applications Creating reusable component libraries Design system implementation Responsive and mobile-first development Performance optimization Server-Side Rendering (SSR) Progressive Web Apps (PWA) API integration Frontend architecture React Native mobile applications Refactoring legacy projects Bug fixing and maintenance Many clients choose me as a Front End developer because I can quickly understand business requirements and translate them into practical solutions. When companies need a Front End developer who can take ownership of a feature from planning to production, I can provide that support. I've worked as a Front End developer on both small startup projects and large-scale applications. My experience as a Front End developer allows me to adapt to different team structures, coding standards, and development processes. Although my primary role is a Front End developer, I also have experience with backend development. This broader perspective helps me become a more effective Front End developer because I understand how frontend systems interact with APIs, databases, and cloud infrastructure. I've worked with: PostgreSQL MongoDB MySQL Firebase Firestore Supabase AWS Node.js Python PHP This experience allows me to work effectively with backend teams and contribute as a Front End developer who understands the complete product lifecycle. How I work I believe a great Front End developer should focus on more than writing code. A Front End developer should understand user experience, accessibility, performance, maintainability, and business objectives. As a Front End developer, I value clear communication, ownership, and attention to detail. Every Front End developer should be able to balance technical excellence with practical business needs, and that's the approach I bring to every project. I've also contributed as a Front End developer in areas such as: Code reviews Technical planning Frontend architecture Git workflows CI/CD pipelines Agile development Team collaboration Mentoring junior developers Whether you need a Front End developer for a short-term project, a Front End developer for long-term collaboration, or a Front End developer to strengthen your current engineering team, I can help. My goal as a Front End developer is to build products that users enjoy using and that businesses can confidently grow over time. Companies often look for a Front End developer who can join an existing team and become productive quickly. Others need a Front End developer to help launch a new product or modernize an existing application. In both cases, I focus on delivering reliable, maintainable, and scalable solutions. If you're looking for a Front End developer with strong React expertise, modern frontend experience, and a practical approach to product development, I'd be happy to discuss your project. Best regards, Dmytro

🚀 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐒𝐚𝐚𝐒 & 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐄𝐱𝐩𝐞𝐫𝐭 | React · Next.js · Node.js | 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 I'm a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 specializing in 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐀𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧, 𝐑𝐞𝐚𝐜𝐭/𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐚𝐧𝐝 𝐍𝐨𝐝𝐞.𝐣𝐬. With 𝟖+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I help startups and businesses design, build, and scale 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 — from MVP to production. I focus on delivering 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐜𝐥𝐞𝐚𝐧, 𝐚𝐧𝐝 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 that not only work today but are built for long-term growth. By combining 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐰𝐢𝐭𝐡 𝐀𝐈 𝐜𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬, I help businesses automate workflows, improve efficiency, and launch faster. → 𝗖𝗼𝗿𝗲 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 ✔ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 React, Next.js, Node.js, Express.js, FastAPI, Django | TypeScript, JavaScript, Python, SQL ✔ 𝐒𝐚𝐚𝐒 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Multi-tenancy, subscription billing, role-based access, and scalable backend systems — from MVP to production. ✔ 𝐀𝐈 & 𝐋𝐋𝐌 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 OpenAI API, LangChain, RAG pipelines, Pinecone, Weaviate, FAISS — building intelligent and automated systems. ✔ 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 & 𝐀𝐏𝐈𝐬 REST, GraphQL, WebSockets — live dashboards, chat systems, notifications, and real-time updates. ✔ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 & 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 PostgreSQL, MongoDB, Supabase, Redis, Firestore, MySQL — optimized for performance and scalability. ✔ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 AWS, Docker, Kubernetes, CI/CD — reliable deployments and scalable infrastructure. ✔ 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 & 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 OAuth, JWT, Google/GitHub Sign-In, Stripe, PayPal — secure and production-ready integrations. ✔ 𝐔𝐈/𝐔𝐗 & 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Tailwind CSS, Shadcn UI, Material UI — clean, responsive, and user-friendly interfaces. → 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 ✔ 𝐄𝐧𝐝-𝐭𝐨-𝐄𝐧𝐝 𝐎𝐰𝐧𝐞𝐫𝐬𝐡𝐢𝐩: From planning to deployment — I handle the complete product lifecycle. ✔ 𝐀𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡: Practical AI integrations that solve real business problems. ✔ 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 & 𝐒𝐜𝐚𝐥𝐢𝐧𝐠 𝐅𝐨𝐜𝐮𝐬: Fast MVP development with a strong foundation for growth. ✔ 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐑𝐞𝐚𝐝𝐲 𝐂𝐨𝐝𝐞: Clean, modular, and maintainable codebases. ✔ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 & 𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲: Optimized systems with focus on speed and stability. ✔ 𝐂𝐥𝐞𝐚𝐫 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: Quick responses, transparent updates, and smooth collaboration. → 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (React, Next.js, Node.js) 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 — MVP to Production 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 & 𝐑𝐀𝐆 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐎𝐩𝐞𝐧𝐀𝐈 & 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Real-Time Dashboards, Chat & WebSocket Systems Database Architecture & Performance Optimization AWS Deployment with Docker & CI/CD Authentication Systems & Role-Based Access Control Stripe, PayPal & Subscription Billing Integration 📱 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 SaaS Platforms & Productivity Tools E-Commerce & Marketplace Applications FinTech & Finance Systems Healthcare & Telemedicine Platforms AI-Powered Applications Social & Community Platforms 📩 Let's build your next 𝐒𝐚𝐚𝐒 𝐨𝐫 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭! If you're looking to launch fast, scale efficiently, or integrate AI into your product — I’m here to help. 🟢 Available for long-term and short-term projects | Fast response time | Flexible with time zones 🔍 Keywords: Full-Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, Web Application Development, TypeScript Developer, JavaScript Developer, Python Developer, AI Integration, LLM Integration, OpenAI API, LangChain Developer, RAG Pipeline, Vector Database, Generative AI, AI-Powered App, Full-Stack AI Developer, FastAPI Developer, Django Developer, REST API Development, GraphQL API, PostgreSQL Developer, MongoDB Developer, Supabase Developer, Redis Developer, AWS Deployment, Docker, Kubernetes, CI/CD Pipeline, Startup MVP, MVP Development, SaaS MVP Developer, Scalable SaaS Architecture, Multi-Tenant SaaS, Subscription Billing, Stripe Integration, OAuth Integration, Real-Time Web App, WebSocket Developer, Dashboard Development, Chat Application, E-Commerce Development, FinTech App, Healthcare Web App, Performance Optimization, Secure Web Application, API Integration Expert. less