Are you seeking 𝐚 𝐰𝐞𝐛 𝐞𝐱𝐩𝐞𝐫𝐭, 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐩𝐚𝐫𝐭𝐧𝐞𝐫, 𝐨𝐫 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐭𝐞𝐜𝐡 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭? - With over 10 years of commercial experience in web development, I have the skill set and knowledge to handle all your business needs, from concept to completion! Additionally, as the CEO and co-founder of Devima Solutions, I lead a team of seasoned professionals specializing in developing innovative and profitable applications, regardless of complexity. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮'𝐥𝐥 𝐠𝐚𝐢𝐧 𝐛𝐲 𝐜𝐡𝐨𝐨𝐬𝐢𝐧𝐠 𝐮𝐬 𝐚𝐬 𝐲𝐨𝐮𝐫 𝐬𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐩𝐚𝐫𝐭𝐧𝐞𝐫 🟩 Tailored Solutions: A personalized approach that ensures your unique needs and goals are prioritized. 🟩 Expert Knowledge: Our team brings a wealth of expertise across various industries, ensuring your project benefits from the best technical insights. 🟩 Effortless Onboarding: We guarantee a quick and seamless start to your project, reducing complexities and maximizing efficiency. 🟩 Ongoing Support: We don’t just build; we partner. You’ll receive dedicated support and further development even after deployment. 🟩 Creative Problem-Solving: We pride ourselves on thinking outside the box, delivering innovative solutions for top-tier results. 𝐎𝐮𝐫 𝐭𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: 🟩 Front-end Development: TypeScript, React.js, Next.js, Vue.js, Nuxt.js, HTML5/CSS3, Tailwind, Ant design, Material UI. 🟩 Back-end Development: Node.js, Nest.js, Koa, Express.js, Sequelize, TypeORM, PHP, Laravel, Symfony, .net, REST API. 🟩 Database: PostgreSQL, MYSQL, MongoDB, GraphQL, Redis. 🟩 Quality Assurance: Manual functional testing, Test automation. 🟩 DevOps tool: Docker, Nginx, Jenkins, Amazon ECS. 🟩 Cloud services: Amazon Web Services, Google Cloud Platform, Microsoft Azure, DigitalOcean. Stop scrolling through endless profiles - you've just found the right partner! Contact me now to schedule a consultation, and let’s discuss your needs and business goals. 𝐁𝐮𝐳𝐳 𝐰𝐨𝐫𝐝𝐬 Development Services: Product Development, Web Development (Web Application), Website development, Ecommerce Website Development (eCommerce), MVP development (Minimum Viable Product), Application Development, Front-End Development, Back-End Development, Full-Stack Development, MERN Stack Development (MERN), Test-driven Development (TDD), Agile Software Development, SaaS (Software as a Service, SaaS Development), Software Architecture & Design, API integration, API Development (RESTful API, API, RESTful Architecture), RESTful API integration, Integration of Third-party APIs, ChatGPT API Integration, Website Optimization (Performance Optimization), Progressive Web App (PWA), Database Architecture, Database Design, Database Development, System Architecture, Responsive Design, Server deployment. Languages: TypeScript (TS), JavaScript (JS), ECMAScript, PHP, C#, XML (XML Sitemap), JSON, HTML (HTML5), CSS (CSS3). Frontend Frameworks and Libraries: React.js (React, ReactJS), Next.js (Next, NextJS), Redux, Redux-Saga, ReactQuery, MobX, Vue.js (Vue, VueJS, Vue 2, Vue 3, Vuex, Vuetify), Nuxt.js (Nuxt, NuxtJS), Quasar (Quasar Framework), Angular, Ember.js, Tailwind CSS (TailwindCSS), Ant design (ANT), Material UI (MUI, Material-UI, Material Design), Bootstrap (Twitter Bootstrap), CSS Framework, CSS Preprocessors, CSS-in-JS (Styled Components, Emotion), SASS, LESS, CSS Grid (Grid), Flex (Flexbox). Backend Frameworks and Libraries: Node.js (Node, NodeJS), Nest.js (Nest, NestJS, NestJS), Koa, Express.js (ExpressJS, Express), Socket.io, Passport.js, Sequelize, TypeORM, Slim, Yii2, Laravel, Symfony, ASP.Net Core, ASP.Net MVC, ASP.Net SignalR, ASP.Net Web API, ADO.NET, EntityFramework, Dapper, LINQ, GraphQL. Databases: PostgreSQL, MongoDB, MySQL, Firebase, MariaDB, Redis. Testing Frameworks: Jest, Jasmine, Mocha. DevOps, Cloud and Infrastructure: Docker, Nginx, Jenkins, CI/CD integration, Amazon Web Services (AWS), AWS Lambda, AWS Amplify, Amazon EC2, Amazon ECS, Google Cloud Platform (GCP), Microsoft Azure, DigitalOcean, Heroku, Webpack, Bitbucket, Git, GitHub, GitLab, Grunt, gulp, Swagger, Vercel, NPM, YARN. APIs and Integrations: Stripe API, Paypal API, ElasticSearch, Twilio API, OpenAI API, GPT API, GPT-3, GPT-3.5, GPT-4, GPT-4o, OpenAI Codex Prompt, API. Project Management and Collaboration Tools: Agile Project Management, Agile Methodologies (Scrum), Kanban, Jira, Trello, Asana, Slack, Monday.com, Notion, Atlassian Confluence. Design and UI/UX: Figma, FigJam, UX/UI, UX User Experience, UI Design, Mockup, Wireframing, Prototype, UI kit, Mobile-first Design, Team Expansion. Other Skills: Single Page Application (SPA), Server Side Rendering (SSR), Client Side Rendering (CSR), Search Engine Optimization (SEO), Content Management System (CMS, CMS development), ChatGPT, Web3, NFT & Cryptocurrency (NFT), NFT marketplace, NFT art, Payment gateway integration, Data Scraping, CRM Development (CRM), Cross-Browser Compatibility, Quality Assurance (QA).

15 years building production systems. Led teams. Shipped products. Made clients millions in revenue. I don't do "simple websites" or "quick fixes" - I architect scalable SaaS platforms that handle real traffic and make real money. WHAT I BUILD: • SaaS platforms (React/Node.js/Next.js) • Enterprise web applications with complex architecture • API integrations and microservices (NestJS, GraphQL) • Mobile apps (React Native) WHY CLIENTS WORK WITH ME: ✓ 15 years of production experience - I've seen every edge case ✓ $100K+ earned on Upwork with 100% Job Success Score ✓ 4,200+ hours delivered - I show up and ship on time ✓ Clear communicator - daily updates, no surprises RECENT WINS: → Built real-time analytics SaaS processing 2M events/day. Client raised $1.5M seed. → Led migration to microservices architecture (reduced costs 40%) → Architected SaaS MVP that raised $1.5M seed funding I specialize in: AI, JavaScript, TypeScript, React, Redux, Next.js, React Native, Vue.js, Node.js, NestJS, ExpressJS, MySQL, PostgreSQL, MongoDB, Amazon Web Services, GraphQL, Firebase. I can build large and complex systems by myself and I have plenty of those to show as my project examples. Need someone who can architect, code, and ship? DM me and let's talk about your project.

Available to start today - 14.01.2026 ⚡Tech Lead ⚡AI Developer ⚡MVP in 100 hours ⚡project from scratch ⚡project scalability⚡ ⭐️ Top Rated Plus – Top 3% of talent on Upwork ✅ 9+ years of experience as an AI Developer, Full Stack Developer, Web Developer, and React Developer ✅ 40+ full-cycle products delivered by me as Full Stack Developer and AI Developer 📈 Scaled platforms to 100,000+ active users as Web Developer and React Developer ⚡ Reduced load time from 3s to under 1.5s across frontend and backend as Full Stack Developer 📊 Built systems processing 1M+ events/hour with data pipelines ready for AI workloads as an AI Developer 💰 Helped clients generate over $50M+ in revenue as a Full Stack Developer 🔁 90%+ repeat clients due to consistent delivery as an AI Developer and React Developer 👋 I’m a Senior AI Developer, Full Stack Developer, Web Developer, and React Developer with deep experience creating production-grade systems supporting model inference, real-time streaming, preprocessing, embeddings, and compute orchestration. I work as a Full Stack Developer on backend-heavy architecture while delivering smooth web and mobile interfaces as a Web Developer and React Developer. My projects integrate multi-step reasoning, distributed data flow, and high-throughput pipelines prepared for LLMs and custom AI models as an AI Developer. I focus on building scalable systems with stable performance under real load as a Full Stack Developer and AI Developer. 🧠 AI-Oriented Development I have hands-on experience as an AI Developer building Completions and Chat Completions APIs. I develop agent-based systems using tools, handoff mechanisms, and guardrails as an AI Developer and Full Stack Developer. I’ve also built voice agents leveraging the WebRTC API as an AI Developer and Web Developer. My work includes image-to-text workflows, prompt engineering, and real-time inference pipelines, as well as Replicate integration for image generation tasks. I implement workflows generating styled images from user prompts through streamlined API integration as an AI Developer. Additionally, I build AI agents using LangChain and the Vercel AI SDK, applying structured memory, tool calling, execution control, and multi-step reasoning as an AI Developer, Full Stack Developer, and React Developer. I am proficient with all their core concepts, APIs, and integrations. Key capabilities as AI Developer, Full Stack Developer, Web Developer, React Developer: ✔️ Completions and Chat Completions APIs ✔️ Agent logic with tool calling, state management, multi-step orchestration, and guardrails ✔️ Voice agents with WebRTC API for real-time streaming, transcription, and control ✔️ Image-to-text pipelines and prompt engineering workflows ✔️ Image generation via Replicate API ✔️ AI agents built with LangChain and Vercel AI SDK ✔️ Streaming endpoints (SSE/WebSockets) for inference ✔️ Vector DBs, embeddings stores, and data pipelines for model training ✔️ Monitoring, audit layers, and threshold management for AI models 🛠 Tech Stack as Full Stack / Web / React / AI Developer Backend: ✔️ TypeScript, JavaScript, Go ✔️ Node.js, NestJS, Fastify, Express ✔️ Event-driven systems, microservices, DDD ✔️ Kafka, RabbitMQ, Bull.js ✔️ REST, GraphQL, WebSockets, gRPC ✔️ Auth0, JWT, OAuth2, SSO Databases: ✔️ PostgreSQL, MySQL, MongoDB, Redis ✔️ Schemas for tens of millions of records, partitioning, triggers, caching Frontend: ✔️ React.js, Redux, Redux-Saga, Next.js 13 ✔️ Real-time dashboards and analytics UIs ✔️ Web Vitals optimization ✔️ React Native mobile apps Cloud & DevOps: ✔️ AWS (ECS, Lambda, RDS, S3, CloudFront, Secrets Manager) ✔️ GCP (GKE, BigQuery, CloudSQL, Pub/Sub) ✔️ Kubernetes setups (Istio, ArgoCD, Helm) ✔️ Terraform, Vault, CI/CD with GitHub Actions or Jenkins ✔️ Monitoring via Prometheus, Grafana, ELK 📌 Why work with me as AI Developer, Full Stack Developer, Web Developer, React Developer I take complete responsibility for architecture, development, and deployment — focusing on measurable improvements. I optimize inference pipelines, data flow, and frontend interfaces as an AI Developer and React Developer, while managing backend systems as a Full Stack Developer. 📉 Cut infrastructure costs by 20–30% 📈 Improved team throughput by 5x using automation and instrumentation 🔐 Delivered GDPR/HIPAA-compliant systems with strict access controls 📦 Migrated monoliths to modular services without downtime 📩 Let’s discuss how I can help you launch AI-driven products, scale your stack, or deliver complex workflows as an AI Developer, Full Stack Developer, Web Developer, and React Developer.

Hi 👋👋👋, I have 8+ years in Full-Stack Development. I build scalable web application with React / Angular / Vue.js / PHP / Laravel / Python. About me: ◉ Software Engineer with a Master's Degree in Computer Science. ◉ 8+ years of experience building complex solutions for clients from the USA, Canada, Australia, the EU, and the United Kingdom. ◉ Delivered over 7,600 man-hours in remote teams developing SaaS level 4/5 – multi-tenant, highly available, fault-tolerant platforms. ◉ An open-minded, goal-oriented individual with creative thinking, a positive attitude, and strong problem-solving skills. My Experience: ✅ 7+ years in Front-end development: HTML, CSS, Bootstrap, jQuery, Angular, React / Redux / VueJS and various additional libraries. ✅ 8+ years in Back-end development: Python, PHP / Laravel, REST API, Redis, SQL and NoSQL Databases, Firebase, AWS, Google Cloud Platform, etc. I've developed a wide range of React applications for healthcare, retail, construction, social network, fitness, e-commerce, food delivery, education industries with geo-location, live-chat, work-force management, accounting, invoicing and other modules. I offer: 1) Pre-launch support (Graphic design, Back-end API development, Front-end development, Admin Panel or CMS, Testing and Quality Assurance, App Store Submission and Approval) 2) Post-launch support (Maintenance/Bug Fixing, Further Extensions).

Need help with a web platform development? I have significant experience in building marketplaces, multi-vendor platforms I can help you at any stage of development. If you only start working on your product, modernize it, continue improving it, or need help with a launch, we have the expertise to cover all your needs. We build unique, fast, secure platforms that scale according to your requirements and business goals. What You Get: 🥇Simple, transparent & step-by-step process of cooperation, 🥇10+ years of experience in WebApp development 🥇100% platform-standard development 🥇Out-of-the-box thinking to find the ideal solutions for your business concerns 🥇Easy communication and quick answers 🥇Guarantee your project will not go over budget. Areas of Expertise • eCommerce development • Multi-vendor platform development • SaaS platforms Industries • eCommerce: Fashion, Beverage, Supplement, Home decor, Beauty etc • Education: Music, Sport, Healthcare, Real Estate • Hospitality: Rental apps, OTA • SaaS: Recruitment, Layer, Docs management, Project management apps 🖥 𝗕𝗮𝗰𝗸-𝗘𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: PHP, Node.js, Python, Laravel, and Nest.js. 🌐 𝗙𝗿𝗼𝗻𝘁-𝗘𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: React, Vue.js, Angular and Next.js Have any questions or proposals? - Feel free to contact me! ⚡"

Click "INVITE" I am a Full Stack Mobile App Developer with deep expertise in React Native, React, Angular, and ASP.NET. As a full stack mobile app developer, I build scalable mobile solutions for both iOS and Android, ensuring smooth performance across platforms. With over 6 years as a full stack mobile application developer, I have delivered 40+ apps, leveraging React Native, React, Angular, and ASP.NET to transform ideas into high-performing products. Why top companies and startups choose me as a full-stack mobile app developer: 🔺1 million+ total app downloads powered by React Native (iOS and Android) 🔺6+ years of consistent development via React Native, React, Angular, and ASP.NET 🔺100% client satisfaction on the last 20 contracts What I deliver as a full stack mobile app developer: 🔺Lightning-fast, native-like mobile apps with React Native (single codebase → iOS + Android) 🔺High-conversion web apps using React or enterprise-grade Angular solutions 🔺Rock-solid, scalable backends and APIs with ASP.NET Core 🔺Full-stack ownership: pixel-perfect UI → React Native / React / Angular frontend → secure ASP.NET backend → CI/CD → App Store/Play Store launch Full-Stack Web Development: 🔺 Build scalable, fast, and maintainable web platforms using React, Angular, and ASP.NET. 🔺 Develop enterprise dashboards, workflow automation systems, and custom portals. 🔺 Ensure seamless integration with React Native mobile apps for full-stack solutions. Mobile App Development (iOS & Android): 🔺 Create cross-platform mobile apps using React Native that feel fully native on iOS and Android. 🔺 Implement offline mode, real-time updates, GPS tracking, payment systems, and multi-language support. 🔺 CI/CD for instant App Store & Google Play deployment with React Native and ASP.NET Custom Web Development: 🔺 Leverage React, Angular, and ASP.NET to ensure future-proof and maintainable systems. 🔺 Progressive Web Apps (PWAs), SaaS platforms, CRM/ERP systems with React and Angular Security & Authentication (ISO 27001): 🔺 Implement secure authentication, role-based access, advanced encryption, and GDPR-ready solutions. 🔺 Follow ISO 27001-aligned workflows to meet enterprise-grade security standards. 🔺 Ensure apps are secure without compromising performance or usability. If you’re looking for a Full-stack Mobile app developer with expertise in React Native (iOS and Android), React, Angular, and ASP.NET who can take your project from concept to launch with measurable results, let’s collaborate! Click "INVITE".

👉🏻I translate your Figma design into pixel perfect HTML CSS. 🟢 Available immediately and ready to dive into your project ASAP. 📊 By the numbers: ✔ 300+ Figma to HTML CSS projects completed ✔ 120+ clients ✔ 5.0 average rating ✔ 8+ years of expirience 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫: —————— 🔹 Figma to HTML CSS — pixel-perfect, fully responsive 🔹 PSD to HTML CSS / AdobeXD to pixel perfect HTML CSS / Sketch to responsive HTML CSS 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: —————— 🔹 HTML, CSS(SCSS), JavaScript; 🔹 JavaScript; 🔹 CSS Grid, Flexbox; 🔹 bootstrap, tailwind css; 🔹 gsap, greensock, css animations Why clients keep coming back: —————— ✔ 100% pixel-perfect match every time ✔ Clean, scalable, fully responsive, developer-friendly code ✔ Fast Turnaround: 24-48 hour first-draft delivery on core pages ✔ 100% On-Time Delivery record across all contracts across 300+ projects ✔ Unlimited revisions until you're 100% happy ✔ 8+ years experience • 300+ projects • 120+ happy clients • 5.0 from 120+ reviews Ready to bring your design to life? Join 120+ satisfied clients — message me today to discuss your project! Best regards, Roman

Hi all, Experienced software engineer and digital nomad with a strong background in backend (Go, Node.js) and frontend (Angular, React) development. Skilled in building scalable, high-performance applications and delivering end-to-end solutions. 🌍 Comfortable working across New York, Singapore, and Germany time zones. Technical summary: Programming languages: Javascript, Typescript, Go Front-end Frameworks & libraries: Angular, AngularJs, NgRx, RxJs, Tailwind, SASS, LESS, VanilaJS Back-end: Node, Express, NestJS, Prisma, SQL, Amazon, Google Cloud, Heroku, Oauth DB: MySQL, Postgres, Redis, MongoDb PM Processes: Agile, Scrum, Kanban Tools and process, JIRA, VS Code, Unit Testing, E2e Tests, Scrum Additional tools: Git, Vim If you are looking for a reliable, creative and experienced IT professional, you have come to the right place, as I will eagerly become your longtime partner. Let's start to work!

Hi! I'm Dmitriy, a senior full stack developer Are you ready to transform your vision into a state-of-the-art product? Look no further! Here's why I'd be a good fit for your project: 🎯 Expertise: With over 8 years of experience, I develop web and mobile apps that meet industry standards. 🚀 Speed: I'm a strong believer in quick and efficient delivery. Leveraging the latest development frameworks and agile methodologies, I ensure your product gets to market swiftly without compromising quality. 🔑Security: The systems I build follow the best practices in data encryption and secure user authentication, protecting you and your users' information at all times. 📈 Scalability: I build platforms that are scalable, ready to grow with your business and handle increased user demands with ease. Front-End Development ✔ Vue.js | Vuex | Nuxt.js | Vuetify ✔ React.js | Redux | React Native | React TypeScript ✔ JavaScript | TypeScript ✔ HTML5 | CSS3 | SCSS | Bootstrap ✔ jQuery | AJAX ✔ Adaptive Web Design Back-End Development ✔ Laravel | Laravel Livewire | Full Stack Laravel ✔ PHP | Core PHP | Custom PHP | PHP Script ✔ Yii | Yii2 | CodeIgniter | Symfony 4 | Laminas ✔ Backend Nodejs | Express.js | Java Backend engineer | Laravel Vue.js ✔ PHP MySQL | PostgreSQL | MongoDB | Microsoft SQL Server | SQLite ✔ PHP API Development | RESTful API | GraphQL CMS & E-commerce ✔ Familiar with: WordPress developer | WooCommerce | PHP WordPress ✔ Shopify | Shopify Web Developer | ERP Development | CRM Customization Cloud & DevOps ✔ AWS Integration | Amazon Web Services ✔ Docker | Continuous Integration ✔ Apache Server | Vtiger | Shopware Software & Tools ✔ MadCap Flare | Affinity Designer ✔ Database Architecture & Administration ✔ ETL | Transact-SQL | Oracle Database Roles & Specializations ✔ Full Stack Developer PHP | Back-End Developer | Front-End Developer ✔ PHP Laravel Developer | Vue Developer | React Developer | Flutter Laravel PHP Developer ✔ Senior PHP Developer | Senior Backend developer Node.js | Full Stack Developer React Node Industries I Worked With ✔ E-commerce ✔ Healthcare ✔ Real Estate ✔ AI & ChatGPT Integration ✔ Social Media ✔ Sales & Digital Marketing ✔ Education & Legal ☎️ Contact me if you are looking for experienced developer

I’m an experienced Full-Stack Developer with several years of expertise building projects of all scales - from MVPs to large, production-ready platforms. 🔹 Front-End: React.js, Next.js (SSR, SSG, CSR) TypeScript, Redux, React Query TailwindCSS, Material UI, SCSS Pixel-perfect UI from Figma/Sketch/PSD Performance optimization & SEO best practices 🔹 Back-End: Django / Django REST Framework / FastAPI Flask for lightweight APIs and microservices PostgreSQL, MySQL, MongoDB Authentication & Authorization (JWT, Auth0) Building scalable RESTful and GraphQL APIs 🔹 DevOps & Tools: Docker, CI/CD pipelines AWS, DigitalOcean, Heroku Git (GitHub, GitLab, Bitbucket) ✅ What you get working with me: Clean, scalable, and well-documented code Clear communication and on-time delivery Focus on business goals, not just code Experience in SaaS, CRM, eCommerce, marketplaces, and enterprise solutions My mission is to turn client ideas into high-quality, reliable, and scalable web applications. I’d be happy to discuss your project and bring it to life 🚀