Tired of short-term fixes and looking for a reliable tech partner for the long haul? 💡 Whether you need to build a high-performance web application from scratch, scale an existing SaaS platform, or continuously optimize your backend and frontend infrastructure to drive real revenue, I am here as a seasoned Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer to turn your vision into a scalable r I am working as a dedicated Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer, building robust scalable web architectures that actually move the needle on user engagement and performance, not just look good in a screenshot. My background in software engineering and UI UX I shapes how I approach every system. A quick snapshot of the work: I have built 35+ custom web applications from scratch as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer executing flawless frontend-to-backend integrations. Engineered 45+ custom scalable backend apps and microservices on Node.js and Python as a Node.js Developer, Python Developer, and Full Stack Developer, handling 100,000+ active users and API requests without issues. Completed 100+ technical code and performance audits as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer and can do it for you! I have delivered 30+ complex system migrations, including moving massive relational databases and data rows with zero downtime, led by an expert Full Stack Developer, Node.js Developer, and Python Developer. 🔹 Where I focus as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer: Performance, speed, and clean code. Modern frontend builds with React.js and Next.js combined with powerful backend systems (Node.js, PHP/Laravel, Python) have pushed client platform efficiency up 15–35%, mostly by fixing bottlenecks, optimizing server response times, and refining client-side navigation. As a Full Stack Developer, React Developer, and Next.js Developer, I also eliminate technical bloat: replacing heavy libraries with lightweight native hooks and optimized components. 🔹 Custom development as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer: When a product needs something standard frameworks don't offer out of the box, I build it: as a Node.js Developer, Python Developer, and Full Stack Developer, I build custom APIs, REST & GraphQL integrations, secure webhook setups, authentication systems, and dynamic user interfaces using React.js and Next.js (App Router) with Tailwind CSS and Shadcn UI. 🔹 Migrations and Database Architecture with a Full Stack Developer: Legacy system upgrades, monolith-to-microservice splits, or database restructuring are handled carefully by an experienced Full Stack Developer, Node.js Developer, Python Developer, and Next.js Developer where data safety, security, and performance optimization are absolute priorities. 🔹 Industries I've worked in as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer: SaaS & digital products, FinTech, healthcare & wellness, logistics & supply chain, enterprise internal tools, and high-traffic e-commerce ecosystems. 🔹 How I work as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer: I start with a technical architecture review before touching any code. From there, as a Full Stack Developer, React Developer, Node.js Developer, Next.js Developer, and Python Developer, I handle system design, component wiring, and development with clean, maintainable code, followed by rigorous testing and deployment. Everything gets tested cross-browser and mobile-first. 🔹 Specialize in modern frontend architectures, React.js, Next.js (App Router), TypeScript, Tailwind CSS, and mobile-first responsive design as a Full Stack Developer and React Developer. 🔹 Build high-throughput server-side applications, REST APIs, and microservices leveraging Node.js, Express, and asynchronous event-driven patterns as a Node.js Developer and Full Stack Developer. 🔹 Engineer lightning-fast server-side rendering (SSR), static site generation (SSG), and optimized routing structures as a Next.js Developer and React Developer. 🔹 Develop smart automations, data scraping scripts, machine learning integrations, and heavy backend data processing using Python as a Python Developer and Full Stack Developer. 🔹 Handle complex relational database design, optimization, and migrations across PostgreSQL, MySQL, MongoDB, and SQLite as a Full Stack Developer, Node.js Developer, and Python Developer. 🔹 Optimize Core Web Vitals, fix page speed bottlenecks, and eliminate third-party script bloat to maximize web performance as a Full Stack Developer, React Developer, and Next.js Developer.

Full Stack Developer React Node 🧩 оhhh, so the frontend works, the backend works… but somehow the project doesn’t? Let’s fix that. 😄 What my clients got from working with me: ✔️ launch SaaS products in 6-10 weeks as Full Stack SaaS Developer ✔️ improve API performance by 30-45% as a Full stack Developer ✔️ reduce manual operations by 40-60% as a Node.js Developer ✔️ build platforms ready to support 10k+ users as a Full stack Developer React node As a Full Stack Developer React Node and SaaS Developer I help startups and established businesses: 16+ years in software development React developer 225+ delivered products as Full stack Developer React Node | MERN stack developer 9+ years of hands-on Node.js developer experience. As a Certified Full Stack Developer React Node and Web Full Stack React Developer, I focus on business outcomes first: launching SaaS MVPs 30–40% faster, improving release stability, building scalable architecture and reducing costly rework as products grow. My experience as a Full Stack React JS specialist allows me to deliver production-ready solutions with React.js, Node.js, Next.js, Nest.js and modern JavaScript Developer workflows, supporting platforms with 10k+ users, 99.9% uptime targets, and integrations across APIs, payments, CRMs, AI developer tools. As a Backend Developer Nest.js with strong TypeScript Backend Development skills, I design maintainable server-side application architecture, secure APIs, and clean business logic for SaaS, internal tools, marketplaces, and custom platforms. As a Node js Developer ( Nodejs Developer ) I use Node.js to simplify complex workflows, improve backend stability by 33–45%, and support products built on both SQL and NoSQL databases. My Typescript Nodejs background helps teams move 25–35% faster with modular services, readable code and easier long-term maintenance. I also build advanced integrations with Stripe, third-party services node.js graphql solutions for scalable product ecosystems, including platforms with 10k+ users, 99.9% uptime targets 20+ API development projects / payment / CRM integration. I’m a Full Stack Developer React Node who has delivered 30+ scalable web applications, including 10+ SaaS platforms, CRM systems, dashboards, admin panels, internal tools, and custom business products. My React js Node js work has supported products with complex integrations, role-based access, payments, analytics, and automation, with a focus on shipping fast, usable, and maintainable solutions that support real business goals. As a React Developer and Full Stack Developer React Node, I build responsive, scalable interfaces using React, JavaScript, Node.js, Next.js. My work as a React Developer focuses on creating fast, user-friendly products that improve usability, support growth, reduce friction across the customer journey. I also work as a React Native Developer ( Full Stack Developer SaaS ) when a product needs mobile-first extensions or companion app experiences aligned with the main platform. As a Full stack AI SaaS developer, I help businesses with scalable SaaS Projects, Edtech Products with dashboards and payment flows, advanced e-commerce solution beyond CMS limits, Corporate Websites with strong backend logic, marketplace platforms with secure transactions, Authentication and Security with JWT-based access control, API Development and Integration, GraphDB, REST API, node.js graphql, CRM Development, Payment Gateways Stripe Paypal Liqpay, Database Management & Optimization and ongoing Deployment & Maintenance. I also bring practical experience with PHP, Laravel, Python, Vue.js, Angular, React, Node.js, full stack developer supabase react, full stack react native spring boot, JavaScript, MySQL, WordPress, Tailwind CSS, Bootstrap, HTML, HTML5, CSS, CSS 3, TypeScript, Redux, jQuery, Responsive Design, Web Design, PHP, MongoDB, Next.js python full stack developer, full stack developer ai, full stack developer react, full stack developer shopify My work covers full stack node.js react for modern Web Application products, including custom API development and API Integration, while Git supports a clean and reliable delivery workflow. I also bring strong Web Design awareness, helping create interfaces that are not only functional, but also responsive, polished and user-friendly. 👉If you need a Full Stack Web Developer who can launch faster, improve performance, stabilize architecture, and build for long-term growth - let’s discuss your product. ggrrppkkll

Experienced AI & Full Stack Developer with a strong track record across web, mobile, and desktop application development, including AI avatar generators, virtual AI assistants, text chat, VoIP, and video chat. Skilled in building autonomous AI systems, multi-agent architectures, RAG pipelines, LLM-powered applications, and workflow automation solutions. Experienced in deploying production-ready AI systems with a focus on reliability, scalability, and performance. Proven ability to contribute as both an individual contributor and team leader, with successful projects delivered across finance, commerce, entertainment, lifestyle, and AI domains. Key strengths include: - AI: OpenAI, Claude, Gemini, Stable Diffusion, LoRA, ElevenLabs, HeyGen, RunwayML, LangChain, LlamaIndex, AutoGen, CrewAI, RAG, Multi-Agent Systems, MCP Servers - Cross-Platform & UI: C++, Qt & QML, PySide, Rust - DevOps & Cloud: CI/CD, AWS, GCP, Azure - Frontend & Mobile: React, Angular, React Native, Swift, Flutter - Backend & Core: JavaScript, TypeScript, Node.js, Python, Go, Java, PHP, Ruby on Rails * Architecture & Leadership: Full-cycle product development, UI/UX focus, agile processes, team collaboration

Built mobile apps used by 𝟏𝟓𝗠+ users | Launched a FinTech 𝗠𝗩𝗣 𝗶𝗻 𝟑 𝗺𝗼𝗻𝘁𝗵𝘀 | build iOS & Android apps that scale 𝗳𝗿𝗼𝗺 𝗠𝗩𝗣 𝘁𝗼 𝗺𝗶𝗹𝗹𝗶𝗼𝗻𝘀 I've spent 10+ years building mobile products that people actually use. Whether you need to validate an idea quickly or scale an existing application, I focus on architecture first so your MVP becomes the foundation of a long-term product instead of something that needs to be rebuilt a few months later. What makes me different is the combination of deep mobile expertise and full-stack experience. I work across Flutter, Swift, Kotlin, React, Python, and .NET, allowing me to take ownership of the entire product - from architecture and APIs to mobile applications, cloud infrastructure, and production deployment. Here's what I deliver: 📱 Cross-platform mobile apps - Flutter, KMP (Kotlin Multiplatform), Swift, Kotlin 🌐 Scalable web - React, Next.js, Node.js, .NET Core 🤖 AI & Computer Vision - Python, PyTorch, YOLO, real-time video analysis ☁️ Cloud & security - AWS, Docker, PCI-DSS compliance, PassKey encryption Whether you need an MVP in 90 days or a production system built for 10M+ users, I map out the architecture first so you never rebuild from scratch. 📌 FxPro - architected native mobile apps and high-load backend for a 15M+ download trading platform. Won multiple international awards. 📌 Grineo FinTech Wallet - launched secure MVP in 3 months, 50% faster than industry average, with PassKey encryption. 📌 Volga Surf Camp KMP App - increased service usage 2-4x, reduced admin workload by 3x. 📌 PPE Detection System - real-time AI safety monitoring on construction sites using YOLO and PyTorch. ⭐ 5.0 rating | Top Rated on Upwork | Certified: Flutter Development (Udemy), Full-Stack Web & Mobile (Coursera) 📩 Send me a message with a brief description of your project and I'll respond within a few hours with a clear next step!

Only complex projects, no fixed-price based contracts. ⭐️⭐️⭐️⭐️⭐️ "Anybody who gets the opportunity to work with Nazar will be not only satisfied but thrilled. He's humble, smart, capable. Definitely hire again." Hey — what are you working on? Maybe I can help 🙂 I usually jump in at different stages of a project: 🚀 Build products from scratch (idea → flows → UI → full dev) 🛠 Upgrade / refactor existing systems ⚙️ DevOps, server setup & scaling 🕸 Scraping, data extraction & pipelines 💳 Payment integrations (Stripe, PayPal, etc.) 🔗 API integrations (Google APIs, third-party services) …and more depending on what you need About me: I have 20 years of experience building: ✔ Websites (custom or CMS-based) ✔ Web apps & SaaS platforms ✔ Data-driven systems I’ve worked across fintech, healthcare, retail, logistics, edtech, and more. Typical projects: ✔ CRM / ERP systems ✔ AI-powered platforms ✔ Data & analytics tools ✔ Web & mobile apps ✔ IoT solutions ✔ Legacy system upgrades AI stuff I do (real-world, not just demos): 🤖 AI chatbots & AI agents (support, internal tools, automation) 🧠 RAG pipelines (connect LLMs to docs, DBs, APIs) 📊 Predictive analytics (forecasting, anomaly detection) 🔍 Semantic search & vector DBs 🗣 Speech AI (STT, TTS, voice agents) 👁 Computer Vision ⚙️ AI automation workflows (multi-step agents, business processes) 🧪 Fine-tuning, evaluation & MLOps pipelines Tech stack.. Backend: - Python (Django, Flask, FastAPI, Tornado) - Node.js (MEAN / MERN stacks) - PHP (Laravel, CodeIgniter, CakePHP) Frontend: - React, Angular, Vue - HTML5, CSS3, JS (jQuery, AJAX, etc.) - Responsive, mobile-friendly, cross-browser layouts - Bootstrap, Tachyons Data & DBs: - PostgreSQL, MySQL, MongoDB - Data pipelines, transfer, processing Other: - REST APIs, third-party integrations - Payment systems (Stripe, PayPal, Braintree, etc.) - Scrapy + custom scraping solutions - Cloud (AWS/GCP), deployment, infra --------------- If you’ve got an idea (or something half-built and messy), I can help you figure out how to actually ship it without over engineering. Happy to jump on a quick 30-min call, understand your goals, and map out next steps. Just ping me 👍 -------------- Python, Django, mysql, Postgres, flask, fast api, ai chatbot, scrapy, data extraction, data scraping AI Chatbot, AI Agent Development, AI App development, Chatbot Development, Generative AI, MLOps, Artificial Intelligence, Machine Learning, AI Development, AI Bot --------------- Node.js, Express.js, NestJS, Next.js, TypeScript, JavaScript, MongoDB, PostgreSQL, MySQL, GraphQL, REST API, Prisma, Sequelize, Redis, WebSockets, Socket, API Integration, Microservices, Serverless, AWS Lambda, Docker Backend Development, Full-Stack Development, API Development, Real-time Applications, Microservices Architecture, Cloud Development, Scalable Systems, SaaS Development, Web App Development, System Design

✊Knock, knock 👋 Who’s there? Someone who can turn “I have an idea” into a working product. 🧑🏻‍💻 I'm a Full Stack Web Developer (React + Node.js), 9+ years, 89 projects delivered SaaS platforms, 🛍️ marketplaces, 💶 fintech, 🩺 healthcare and AI products, including builds serving 6M+ users.👥 As a Full Stack Web Developer, build the whole product: database and API on the backend, the interface clients actually use on the frontend, and AI features inside both. Backend Development — MVP to 600,000+ users on a rewards platform I built - Node.js, NestJS, Express, TypeScript - REST & GraphQL APIs, auth, role-based permissions (RBAC), row-level security - PostgreSQL, MongoDB, Redis — schema design, indexing, query optimization - Background jobs, queues, cron pipelines, webhook processing - Real-time features with WebSockets - AWS, Docker, CI/CD, monitoring Full Stack Web Developer: Front-End Development — real-estate marketplace shipped in 6 months, client raised €2.2M - Full Stack Web Development - React, Next.js, TypeScript - SSR/SSG, Core Web Vitals, SEO-critical page performance - Data-heavy dashboards & admin panels (multi-tenant SaaS with 10,000+ active users) - Design systems, reusable component libraries - State management at scale: Redux, Zustand, React Query - Search, filters, maps, complex forms API Development & Integrations — Stripe billing, maps, messaging, CRMs - Payment flows: subscriptions, usage-based billing, refunds, webhooks - Third-party API integrations and anti-corruption layers - Multi-tenant architecture with per-tenant data isolation AI Development — healthcare AI MVP that raised $2M - RAG chatbots and AI assistants: 70% of support tickets handled automatically, reply time cut from 4 hours to under 1 minute - AI chatbot handling 300+ chats/day in production - OpenAI / Anthropic integrations, LangChain & LangGraph agents - Semantic search with vector databases (pgvector, Pinecone, Qdrant) - 50+ automation workflows on n8n / Make Mobile & Cross-Platform - Full Stack Web Developer— 6M+ users on a React Native product - React Native apps shipped to App Store and Google Play - Shared TypeScript logic between web and mobile Stack React · Next.js · TypeScript · Node.js · NestJS · PostgreSQL · MongoDB · Redis · GraphQL · Docker · AWS · Stripe · LangChain · OpenAI API Track record 89 completed projects · $200K+ earned · 93% Job Success · Top Rated Plus Why clients keep me on long-term as a Full Stack Web Developer: - I think in product logic, not tickets - I flag architectural mistakes before they get expensive - I write code the next developer can read - I stay with products as they scale Building a SaaS platform, marketplace, AI product or internal tool? Tell me what you're building and I as a Full Stack Web Developer reply with a concrete technical direction.

I build scalable, production ready full stack applications with clean architecture, strong performance, and long erm maintainability. I help startups, SaaS companies, and growing businesses turn ideas into high performance web applications fast, structured, and stress-free. 💻 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 (𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 + 𝗕𝗮𝗰𝗸𝗲𝗻𝗱) 🔹 Frontend Development – React.js Specialist I build modern, scalable, and SEO friendly user interfaces using: React.js Next.js JavaScript (ES6+) TypeScript Redux / Zustand Tailwind CSS / Material UI REST & GraphQL integrations 𝗜 𝗱𝗲𝘃𝗲𝗹𝗼𝗽: SaaS dashboards Admin panels Enterprise web apps Progressive Web Apps (PWA) SEO-optimized Next.js web apps Focus: ✔ Clean component architecture ✔ Performance optimization ✔ Scalable state management ✔ Pixel-perfect responsive UI 🔹 Backend Development – Node.js & Python Engineer I design secure, scalable backend systems and APIs using: Node.js Ecosystem Node.js Express.js Fastify NestJS REST API Development GraphQL APIs Prisma ORM Python Backend FastAPI Django Flask Async services & background jobs Databases PostgreSQL MongoDB MySQL Redis Backend strengths: ✔ Microservices architecture ✔ Secure authentication (JWT, OAuth) ✔ Stripe & third party integrations ✔ Scalable database design ✔ API performance optimization ✔ Production grade system architecture 🔹 Full Stack & MERN Development Specialized in: MERN Stack (MongoDB, Express.js, React.js, Node.js) SaaS platforms Fintech dashboards CRM systems ERP solutions AI powered web applications Subscription based systems From idea → architecture → development → scaling I take full ownership. 🎯 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✔ Business-first development mindset ✔ Clean, maintainable code ✔ Clear communication ✔ Reliable timelines ✔ Scalable architecture from day one I do not just build features , I engineer scalable digital products. 📩 Let’s Build If you are looking for a Senior Full Stack Developer (React.js + Node.js + Python) who can deliver secure, scalable, and production ready applications, let’s connect. No fluff. Just strong engineering. Full Stack Developer, React.js Developer, Node.js Developer, Python Backend Developer, MERN Stack Developer, Next.js Developer, API Developer, Microservices Developer, SaaS Developer, Backend Engineer, Web Application Developer.

I'm a full stack developer, React Developer, and MERN stack developer with hands-on tech lead experience, specializing in React, Node.js, and AI integration for SaaS products. Most teams don't need another pair of hands writing tickets - they need someone who can design the system, connect AI Agents and LLM workflows to a real product without hallucinated features or runaway API costs, and still explain every decision in plain terms. That's the gap I fill: architecture-level thinking with full stack execution. 🕒 Availability 🌐 Online: 9 AM - 6 PM EEST | 3:30 PM - 12:30 AM ACST | 1 AM - 10 AM CDT 🗓️ 30-40 hrs/week, 5 days/week I work as a React Developer and node.js developer on the frontend and backend alike, building with React, Node.js, Express.js, and MongoDB as my core MERN stack, backed by TypeScript and Python for services where it fits better. With hands-on tech lead and architecture experience, I don't just write code - I design the system, document decisions, and report progress clearly so the team always knows where the project stands. - Cloud & DevOps (AWS, Azure) - On the infrastructure side, I work as an AWS architect designing systems that stay reliable under real production load, not just in a demo - the same mindset I bring as a React Developer to the frontend. This includes AWS Lambda for serverless workloads, database and storage setup, CI/CD pipelines, and AWS DevOps practices that keep deployments predictable. I also bring working experience with Microsoft Azure. Whether it's python AWS backend services or a Node.js API layer, I treat infrastructure as part of the product, not an afterthought - correct from the first deploy, not patched after something breaks. - AI Integration and API Integration - A growing part of my work as a React Developer moving into backend AI is AI integration - connecting products to OpenAI API, Claude API, and LangChain workflows, building RAG pipelines, AI agents, and structured outputs that make AI features useful in production, not just a demo. I handle API integration end to end, including REST APIs, GraphQL, Stripe, and services like Sendgrid and Google APIs, so every part of the system talks to each other reliably. As an AI machine learning-focused engineer, I care about making AI features fast, cost-aware, and genuinely useful to the people using the product, not just technically impressive. - SaaS Development - On the SaaS side, the same React Developer mindset applies to backend architecture: I build multi-tenant platforms, subscription logic, admin dashboards, and customer-facing portals that are ready to grow with the business, not patched together for a single client. Whether the goal is a new SaaS product from scratch or scaling an existing one, I bring backend architecture thinking to every decision - from database schema to role-based access to billing logic. What I build: 🔹 SaaS platforms and multi-tenant web applications 🔹 Internal business tools, admin dashboards, and workflow systems 🔹 AI-powered features and LLM integrations added to existing products 🔹 REST and GraphQL APIs connecting frontend, backend, and third-party services 🔹 Cloud infrastructure and deployment pipelines on AWS and Azure 🔹 Backend systems built with Node.js, Express.js, and Python Areas of expertise: React Developer, React js Developer, Full Stack Developer, Full Stack Developer React Node, Node.js Developer, Backend Node.js Developer, MERN Stack Developer, MEAN Stack Developer, Python Developer, SaaS Developer, AI Integration, API Integration, AWS Architect, AWS Developer, AWS DevOps, Azure Developer. - How I work - I'm a proactive, communicative engineer with strong English. I flag risks early, keep documentation current, and give clients honest, regular updates instead of silence between milestones. I treat every project the way I'd want my own business built - clear scope, clean code, a system the team can maintain after I hand it off. What I don't take on: SaaS marketing, SaaS sales, WordPress-only builds, or Shopify-only integrations. If your project needs real backend logic beyond what a template or off-the-shelf app can handle, that's where I come in. Clients typically bring me in when they: 🔹 Need to launch a SaaS MVP and get it into paying customers' hands quickly 🔹 Have an existing platform that's outgrown its current architecture and needs a full stack developer to restructure it 🔹 Want to add AI integration to a product that already has real users, without breaking what already works 🔹Need someone to own AWS infrastructure and DevOps so deployments stop being a source of stress 🔹 Are looking for one node.js developer or react developer If you need a react developer, node.js developer, mern stack developer, or AWS architect to build or scale a SaaS platform with AI integration built in, let's talk about your project.

𝗠𝗮𝗻𝘆 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝗰𝗮𝗻 𝘄𝗿𝗶𝘁𝗲 𝗰𝗼𝗱𝗲. 𝗙𝗲𝘄𝗲𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝘁𝗮𝗸𝗲 𝘁𝗵𝗲 𝘁𝗶𝗺𝗲 𝘁𝗼 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱 𝘁𝗵𝗲 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗯𝗲𝗵𝗶𝗻𝗱 𝘁𝗵𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁. I help startups and businesses build scalable web applications, mobile apps, AI-powered products, and automation systems that solve real business problems and create measurable value. What sets me apart is that I don't just focus on writing code; I focus on understanding the business goals behind the product, the users you're serving, and the outcomes you're trying to achieve. Then I build solutions that help get you there. 🏆 Top Rated on Upwork | 36+ Jobs Completed | 1,100+ Hours Worked | 100% Job Success Score Over the past 5 years, I've helped clients build SaaS platforms, fintech applications, healthcare systems, e-commerce products, AI-powered solutions, and real-time web and mobile applications used by businesses around the world. 𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝: 🛠️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗔𝗣𝗜𝘀 Python (Django, FastAPI, Flask), Node.js (NestJS, Express), REST APIs, GraphQL, JWT/OAuth2 Authentication, Stripe, Twilio, SendGrid ⚡ 𝗔𝗜 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 OpenAI Integrations, AI Agents, LangChain, RAG Systems, Pinecone, n8n Workflows, Zapier, Make, Custom Chatbots & Automation Solutions 🎨 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 React.js, Next.js, Vue.js, Nuxt.js, TypeScript, Tailwind CSS, Shadcn/UI 📱 𝗠𝗼𝗯𝗶𝗹𝗲 Flutter, React Native 🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 PostgreSQL, MySQL, MongoDB, Redis, Firebase, Supabase ☁️ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 AWS, Docker, GitHub Actions, DigitalOcean, NGINX, CI/CD Pipelines 💬 𝗖𝗹𝗶𝗲𝗻𝘁 𝗙𝗲𝗲𝗱𝗯𝗮𝗰𝗸 ⭐⭐⭐⭐⭐ "Kidus was an exceptional contributor who played a pivotal role in launching our first product version. He skillfully translated ambiguous requirements into live features while demonstrating remarkable self-motivation." ⭐⭐⭐⭐⭐ "Kidus has an excellent disposition, good communication, and meets deadlines. I recommend him 100%." If you're building a SaaS platform, AI-powered application, automation system, custom web application, or mobile app, I can help you plan, build, and deploy it from idea to production. Feel free to review my portfolio, client feedback, and Project Catalog services. If your project sounds like a good fit, send me a message or invite me to your job posting—I typically respond quickly.

AI products don't fail on the model, they fail on everything around it - auth, billing, telephony, retries, cost. I'm an AI SaaS Developer who ships the whole system: Voice AI agents, LLM and RAG features, and multi-tenant SaaS platforms built on Next.js, Node.js and Python. Recent AI SaaS work: an AI-driven booking system for a $300M company. An AI hiring platform that parses and screens 5,000+ CVs. A multi-tenant Voice AI SaaS running real-time telephony on VAPI, Twilio and Whisper. An AI automation pipeline that cut a client's lead-to-meeting time by 78%. And an MVP that helped a founder close a $300K round. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 As an AI SaaS developer I get called in for four things: - AI SaaS platforms: multi-tenant AI SaaS platform for startups - auth, billing, dashboards, and a real AI layer underneath, not a ChatGPT wrapper. - Voice AI agents: a Voice AI agent for inbound calls and appointment booking - lead qualification, call routing, CRM sync. VAPI, Twilio, ElevenLabs, Whisper. - LLM integration: a RAG chatbot integrated into an existing SaaS platform, plus document and OCR automation, embeddings, and OpenAI API work. - MVP development: investor-ready in weeks, then hardened and scaled for production - not thrown away and rebuilt. 𝗦𝘁𝗮𝗰𝗸 Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express, NestJS, Python (FastAPI, Django) Data: PostgreSQL, MongoDB, Supabase, Firebase, vector databases (Pinecone, pgvector) AI: OpenAI API, LangChain, RAG, Whisper, VAPI, ElevenLabs Infra: AWS, GCP, Docker, GitHub Actions, CI/CD, serverless Payments and comms: Stripe, Twilio, OAuth, webhooks, WebSockets I'm a full stack developer by training. I don't hand off the backend, and I don't hand off the deploy. 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 I'll tell you when your idea doesn't need AI. A good share of the "AI features" I get asked for are a database query and a cron job wearing a costume, and I'd rather build you the cheap thing that works than the expensive thing that demos well. Most AI SaaS builds I inherit were shipped fast and then rebuilt twice. I'd rather build it once. That means boring decisions early: real auth, real billing, real error handling, a cost model for your tokens before you have 10,000 users, not after. I use Claude Code and Cursor daily. They make me faster; they don't make the decisions. Every line is reviewed by me before it reaches your repo, and I'll tell you where the model got it wrong. You're paying for the judgment, not the typing. We start with a small, fixed-scope paid engagement. You judge me on shipped code, not on how well I talk. If it goes well, we scale up. If it doesn't, you've lost a fraction of a bad hire. 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 SaaS - FinTech - Healthcare - Logistics - PropTech - HRTech - Marketplaces - CRM/ERP If you need an AI SaaS developer who can architect, build and scale the whole product - not just wire up an API - hit INVITE or send a MESSAGE. Tell me what's broken, or what you're trying to launch, and I'll tell you straight whether I'm the right person for it. I usually reply within a few hours. 𝗔𝗹𝘀𝗼 𝗵𝗶𝗿𝗲𝗱 𝗳𝗼𝗿: AI voice agent development, conversational AI, LLM integration, RAG chatbots, AI automation, multi-tenant SaaS, MVP development, and AI integration into existing platforms.