Full stack developer with 6 years+ experience, with excellent customer communication. If you are new to project management: The better you know the users of your future application, the better i can use my experience to implement the optimal solutions. I can also help you track down the features you are not sure of through my experience, help you to decide which features to actually add, and their details. Also, while you are here, check out my offers for smaller projects, priced $250+. Including domain and hosting for a year. I excell at: Feature specification, quickly responding UI, user experience (Ux/UI), security, database design and system optimisation. Full in depts technical experience with these frameworks and languages: Next.js, SvelteKit, Postgresql, Node.js, Supabase, In details and suplementary: - Frontend Next.js 15, React 19, SvelteKit 5, Javascript, Typescript, CSS/Tailwind, App data management (Jotai, SvelteStore, reactQuery etc.) - Backend Node.js, typescript, ORMs, Golang, Websockets, Payment gateways, any CMS and any online API with docs. -Database Mainly PostgreSQL, MySQL, Redis, Supabase (online wrapper for postgres), Elasticsearch, Prisma and others. -Infrastructure Git, Docker on VPS, Github actions, AWS, general CD/CI

Experienced Full-Stack Web Developer | Open to Collaboration As a freelance developer since 2018, I bring expertise across the full software development lifecycle, from initial design to production deployment. Core Competencies: Full-Stack Frameworks Proficient in scalable frameworks for modern web development: Frontend-First Frameworks: - Next.js - NestJS - Nuxt.js - SvelteKit - SolidStart Backend-First Frameworks: - Laravel - Symfony Back-End Development Skilled in building robust and efficient server-side solutions using Python, Go, PHP, and JavaScript. Specialized frameworks include: - Flask - FastAPI - Express.js, Node.js Front-End Development Adaptable to the dynamic JavaScript landscape and experienced with: React, Solid, Svelte, Vue HTMX, jQuery Databases: Deep experience with relational and NoSQL databases: Relational: PostgreSQL, MySQL, MariaDB, SQLite NoSQL: MongoDB, Firestore, DynamoDB While I favor writing raw SQL queries with database drivers, I collaborate effectively in team settings using ORMs like: Drizzle, SQLAlchemy, Prisma, Django ORM Backend-as-a-Service (BaaS) Proficient in implementing BaaS solutions for streamlined deployment: Supabase, PocketBase, Vercel (DB), AWS Amplify, Firebase Development Philosophy Problem Solving: While testing is a personal growth area, I embrace Test-Driven Development (TDD) to ensure high-quality, bug-free code. Adaptability: Continuously upskill in emerging technologies and frameworks. Collaboration Guidelines Upwork Policy Adherence: Communication and payment must remain on Upwork until a contract is established. External communication tools or profile sharing outside Upwork’s platform are not permitted. Platform Exclusivity: I do not work outside the Upwork platform to ensure security and compliance. Let me know if there’s a project we can work on together!

I help SaaS teams ship AI-powered features faster, by integrating LLMs like Claude and OpenAI directly into your existing SvelteKit, Next.js, or Node.js codebase. No rebuilding your stack. No switching to Python. Clean TypeScript from the API layer down to the UI. Most developers treat AI integration as a separate service bolted onto the side of a product. I build it as a first-class part of your application, streaming responses, tool-calling, Supabase vector search, typed inputs and outputs, and a UI that actually reflects what the model is doing in real time. After 7+ years building production full-stack systems across SvelteKit, React, Node.js, Golang, and Rust, I've learned that the hardest part of AI integration isn't the LLM call , it's making it reliable, observable, and maintainable inside a real codebase. That's the part I specialise in. 🔧 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝 - 𝐋𝐋𝐌 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Claude, OpenAI, and Gemini integrated into your SvelteKit or Next.js app. Streaming via Server-Sent Events, function/tool-calling with typed schemas, multi-turn conversations with memory, structured JSON outputs. TypeScript-first, no Python dependency. - 𝐑𝐀𝐆 & 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Document ingestion, embeddings, and semantic search using Supabase pgvector, all in TypeScript. Build document Q&A, internal knowledge bases, or AI search on top of your existing Supabase database without adding a separate vector infrastructure. - 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐀𝐈 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞𝐬 𝐢𝐧 𝐒𝐯𝐞𝐥𝐭𝐞𝐊𝐢𝐭: Svelte 5 runes, SSE streaming, reactive AI state, live token output. SvelteKit's native reactivity makes it one of the best frameworks for AI UIs, faster to build, lighter to ship, and more maintainable than React for streaming use cases. - 𝐇𝐢𝐠𝐡-𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐀𝐈 𝐁𝐚𝐜𝐤𝐞𝐧𝐝𝐬 𝐢𝐧 𝐆𝐨𝐥𝐚𝐧𝐠 & 𝐑𝐮𝐬𝐭: When your AI pipeline needs throughput, embedding jobs, async agent task queues, concurrent API orchestration. I build it in Golang or Rust. Fast, efficient, and built to handle production load without Python's GIL limitations. - 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐒𝐚𝐚𝐒 𝐌𝐕𝐏𝐬: 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲: SvelteKit or Next.js frontend, Node.js or Golang backend, Supabase database with pgvector, LLM integration, Stripe billing, Vercel or Railway deployment, and documentation your team can maintain. Idea to deployed product in 2–4 weeks. 📂 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 𝐰𝐨𝐫𝐤 — Claude AI + internal system integration: 5-star, $840, 5 days: "Outstanding… seamlessly handling Claude AI and OpenClaw integration… technical depth across both" — Google Speech-to-Text + OpenAI API + Svelte 5: 5-star: "seamless, efficient, and well-structured, showcasing strong technical skills" — SvelteKit + FastAPI full-stack with Docker deployment: 5-star: "Dockerized the app… excellent job" — 24+ months on a SvelteKit production application, $3,400+ long-term contract: "best developer we've worked with on Upwork" (testimonial on profile) — Voice AI agents with Supabase vector DB knowledge retrieval + Google Calendar sync 🛡️ 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤 100% Job Success Score across all contracts. Every delivery includes architecture documentation so your team understands what was built and can maintain it independently. I respond within 4–8 hours and work transparently, no surprises mid-project. Building AI into your existing product, or starting a new AI-powered SaaS? Message me with your stack and what you're trying to build, I'll reply with a concrete plan in our first conversation, not a sales pitch.

I am a seasoned senior software engineer specializing in web development. With a rich professional background spanning over 5 years. I am the type of developer to get stuff done quickly and efficiently. I also try to work closely with the product and work with implementing new features and ideas. I am a creative thinker and am always looking for the best way to approach and solve a problem. 🚀 Proficiency in a range of programming languages, including C#, Node.js, Angular, C, and Rust. 💻Familiar with many frontend development technologies including but not limited to Angular, React, Vue.js and Svelte 🌐 Expertise in developing robust RESTful APIs, microservices, and serverless applications, leveraging advanced AWS and Azure cloud-based technologies. 💡Demonstrated analytical prowess and a meticulous problem-solving approach. 📨Exceptional communication and collaboration skills, underscored by a collaborative team-oriented mindset. I approach my work with a commitment to excellence, consistently delivering high-quality software solutions that not only meet but exceed client expectations. My dedication extends to the ongoing enhancement of my skills and knowledge, ensuring that I remain at the forefront of this dynamically evolving industry.s

Proficient in Node.js and TypeScript development. Experienced in writing custom, data-oriented solutions across many fields. Technical stack includes, but is not limited to: Node.js, TypeScript, JavaScript, Svelte, MongoDB, SQLite and AWS solutions.

I'm Samuel Yeshambel, a Full-Stack Engineer with 5+ years of experience building scalable web applications, APIs, microservices, and business platforms for startups and growing companies. My expertise spans both frontend and backend development, allowing me to take projects from concept to production. I have hands-on experience developing SaaS platforms, payment systems, ERP integrations, admin dashboards, authentication systems, and high-performance APIs. Core Technologies: • Frontend: Next.js, React, Vue.js, Nuxt.js, TypeScript, JavaScript, HTML, CSS • Backend: NestJS, Node.js, Golang, Django, FastAPI • Databases: PostgreSQL, MongoDB, MySQL • Architecture: REST APIs, Microservices, Event-Driven Systems • Testing & Quality: Playwright, API Testing, End-to-End Testing • DevOps & Tools: Docker, Git, CI/CD, Linux What I can help you with: • Full-stack web application development • REST API and backend development • Microservices architecture • Payment gateway integration • ERP and third-party system integrations • Authentication and authorization systems • Database design and optimization • Performance optimization and debugging • Application testing and quality assurance I focus on writing clean, maintainable code and delivering solutions that are reliable, scalable, and aligned with business goals. Whether you need a complete application built from scratch, a backend API, or improvements to an existing system, I can help turn your requirements into a production-ready solution. Let's discuss your project and build something great together.

Hi, I build production-ready web applications by combining full-stack development with practical AI integrations that deliver reliable results. What I do - Build full-stack apps with Vue / Nuxt, Svelte / SvelteKit, React / Next.js - Develop APIs and backends using Node.js, Express, Prisma - Work with PostgreSQL, MySQL, MongoDB, Firebase, Supabase - Integrate AI features like chat assistants, document Q&A, smart search, and automation - Deploy and maintain scalable SaaS solutions using cloud & CI/CD workflows Experience Highlights - Built and deployed multiple high-performance full-stack applications - Created interactive, real-time web apps with seamless integrations - Integrated third-party services and AI APIs into existing products - Collaborated with cross-functional teams using agile workflows I focus on clean code, clear communication, and shipping features that work smoothly from day one. If you’re looking for a developer who can take your project from idea to launch including AI features let’s talk 💪

I build production-ready Agentic AI systems, RAG chatbots, and full-stack LLM applications that help businesses automate workflows, search internal knowledge, and turn complex data into intelligent AI assistants. I’m Ali Masroor, a Top-Rated Full Stack AI Developer with 10+ years of software development experience, a 100% Job Success Rating, and a Bachelor’s Degree in Computer Science. My main focus is building AI-powered applications using LangGraph, LangChain, OpenAI, Claude, RAG pipelines, vector databases, React, Node.js, Next.js, NestJS, Express.js, PostgreSQL, MongoDB, and scalable backend architectures. I can help you build: • Agentic AI workflows using LangGraph, LangChain, tool calling, function calling, and multi-step reasoning • RAG chatbots trained on PDFs, websites, documents, CRMs, databases, and internal knowledge bases • AI assistants for customer support, sales, onboarding, operations, and internal teams • LLM-powered SaaS platforms with React, Next.js, Node.js, NestJS, Express, PostgreSQL, and MongoDB • Document AI systems for PDF Q&A, data extraction, summarization, and automation • AI dashboards and admin panels with secure APIs, user roles, and clean UI/UX • Full-stack MERN/PERN applications integrated with AI models, vector search, and automation tools My technical stack includes: Agentic AI: LangGraph, LangChain, AI Agents, Tool Calling, Function Calling, Agentic Workflows, Multi-Step Automation RAG & Vector Search: RAG Pipelines, Pinecone, Vector Databases, Semantic Search, Document Q&A, Knowledge Base Chatbots LLM Applications: OpenAI API, ChatGPT, Claude, Gemini, Prompt Engineering, Structured Outputs, AI Chatbots Frontend: React.js, Next.js, Vue.js, Svelte, Redux, React Query, HTML5, CSS3, Bootstrap, Material Design Backend: Node.js, NestJS, Express.js, Fastify, REST APIs, GraphQL, PHP Yii2 Databases & Architecture: PostgreSQL, MongoDB, Redis, MERN, PERN, Microservices, RabbitMQ, AWS SQS Tools & Workflow: Docker, AWS, GitFlow, Jira, Swagger, OpenAPI, Postman, CI/CD What makes me different is that I don’t just build AI demos or chatbot wrappers. I build complete, reliable, and scalable AI products with clean architecture, secure APIs, optimized databases, polished user interfaces, and maintainable code. If you need an Agentic AI assistant, LangGraph workflow, RAG chatbot, AI-powered SaaS platform, or a full-stack web application with modern AI capabilities, I can help you take it from idea to production.

Welcome to the crossroads where expertise meets innovation! I'm a seasoned web developer, celebrated for transforming client visions into reality with bespoke solutions that exceed expectations. With a decade of triumphs under my belt, my approach is simple yet powerful: your vision leads the way, enhanced by my strategic insights to ensure we not only meet your goals but redefine them. As a top-rated Upwork professional, I'm not just about ticking boxes. My work embodies excellence, punctuality, and adherence to your budget, proven by an exceptional job success rate that speaks volumes. My forte? A broad spectrum of services tailored to your unique needs, from Web3/DApps and custom web applications to CMS systems, REST/GraphQL API development, seamless API integrations, cutting-edge serverless deployments, and meticulous server management. But it's not just about the code. It's about building a partnership that thrives on trust, innovation, and the relentless pursuit of excellence. Every project is a testament to quality, rigorously tested to ensure flawless performance that stands the test of time. Looking for a developer who not only understands your needs but is also committed to turning your digital aspirations into success stories? Let's connect. I'm here to bring your ideas to life, one line of code at a time.

I'm a Top Rated Plus full-stack developer specializing in SvelteKit, React, and Next.js — and one of the few developers featured in Google's AI Overview when people search for top SvelteKit developers on Upwork. I build scalable SaaS applications, AI-powered systems, and business automation workflows for international clients. I architected and engineered the Fleeet platform from the ground up as the Lead Solo Developer — a production-ready system managing terabyte-scale media datasets using S3-compatible storage (Wasabi), including high-concurrency upload pipelines, secure versioning systems, and automated deletion workflows ensuring 100% data integrity at scale. I also specialize in AI integration and intelligent automation — building LLM-powered applications, RAG pipelines, AI chatbots, and real-time WhatsApp bots using n8n, Claude API, and OpenAI for small and medium businesses. What I can help you with: Scalable SvelteKit, React, and Next.js applications SaaS platforms (MVP → production) AI integration — LLMs, Claude API, OpenAI, RAG pipelines AI chatbot development — WhatsApp, web, and custom interfaces Business workflow automation using n8n File upload/download systems (S3, Wasabi, AWS) High-performance dashboards and UIs API integrations and backend systems Why clients work with me: I focus on performance and scalability from the start Experience with real-world edge cases (large files, deletion consistency, versioning) Clean, maintainable, production-ready code Strong communication and reliable delivery Tech stack: SvelteKit, Svelte, React, Next.js, Node.js, TypeScript, AWS S3, Wasabi, REST APIs, Claude API, OpenAI, LangChain, RAG, n8n, WhatsApp Business API If you're building something serious and need it done right — let's talk.