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🚀 My name is Artem, Co Founder and CTO of JoinToIT. I am a Full Stack Developer with more than 12 years of experience building SaaS platforms, AI powered systems, and complex web applications. 💻 As a Full Stack Developer I have participated in more than 1000 successful projects for startups, SaaS companies, and enterprise platforms worldwide. ⚡ If you need a reliable Full Stack Developer who can design architecture, build scalable systems, and integrate AI or APIs into your product, feel free to contact me. I lead JoinToIT, a software development company with nearly 80 engineers including senior Full Stack Developer specialists, web developer experts, react developer engineers, wordpress developer professionals, and mobile app developer teams. Every Full Stack Developer on our team focuses on scalable architecture, business logic, and long term platform growth. Over the past decade I have worked as a Full Stack Developer building SaaS platforms, CRM systems, marketplaces, enterprise dashboards, and AI powered automation tools. Many companies hire me as a full stack developer saas when they need to build a product from idea to production with reliable architecture. Our engineers regularly work as full stack developer laravel and full stack developer php specialists building secure APIs, payment systems, and large scale SaaS platforms used by thousands of users. As a full stack developer crm I have helped companies automate sales pipelines, distribution management, and customer lifecycle platforms used by teams of 100+ employees. On the frontend side we work as full stack developer react engineers building scalable SaaS dashboards and modern web interfaces. Our developers also deliver projects as full stack developer react node building high performance web applications and API ecosystems. We also build real time systems as full stack developer react firebase engineers including authentication platforms, messaging systems, and live dashboards. Beyond SaaS platforms we also operate as full stack web developer teams delivering scalable web applications, internal platforms, and marketplace systems. Our backend engineers work as python full stack developer flask and python full stack developer django specialists building scalable APIs, automation platforms, and data driven systems. Many companies hire us simply as python full stack developer experts when they need robust backend architecture. For modern SaaS stacks, we also work as full stack developer supabase react engineers building scalable backend infrastructure and cloud native systems. Companies building AI driven products often hire us as full stack developer javascript saas ia or full stack ai saas developer teams to integrate OpenAI, Claude, and automation workflows into SaaS platforms. With more than 12 years of experience as a Full Stack Developer I have helped launch more than 100 SaaS platforms, 70 AI integrations, and 50 CRM systems used by companies worldwide. Our platforms support thousands of daily users and process millions of API requests every month. Our teams also work as web developer and react developer specialists building high performance user interfaces and SaaS dashboards. Some companies hire us as wordpress developer experts for custom plugin development and integrations. When projects require cross platform products our engineers also work as mobile app developer teams delivering mobile applications connected to backend SaaS systems. My skills: JavaScript React Web Application Web Development Software Architecture & Design Full-Stack Development Database Architecture PHP Python Node.js API API Integration WordPress PostgreSQL Web Design HTML5 Git Laravel MySQL Tailwind CSS Our technical expertise includes PHP, JavaScript, Python, React, Laravel, Node.js, Supabase, Firebase, Django, Flask, PostgreSQL, MySQL, WordPress development, Web Development, Full Stack development and modern AI APIs such as OpenAI and Claude. Whether you need a Full Stack Developer to build a SaaS product, an AI powered platform, a CRM system, or a scalable web application, my team and I are ready to help turn your idea into a production ready platform. Best regards Artem Chernitsov CTO, JoinToIT

I set up Odoo, configure it around how a business actually runs, build the custom modules standard Odoo doesn't cover, and stay on for support after go-live. Odoo 16 through 19, odoo.sh and self-hosted Most companies I work with are somewhere in the same place: they either just bought Odoo and don't know how to make it fit, or they've been running it for a year and half the processes still live in spreadsheets. That's the work I take What I do Implementation and deployment - odoo.sh, Docker, or your own server. Staging/production branches, backups, upgrades, CI. I don't hand over a system that only works on my machine. Configuration - Sales, CRM, Purchase, Inventory, Manufacturing, Accounting, Projects, Website/eCommerce. Multi-company and multi-currency setups, user roles and record rules, approval flows. Configure first, code only where configuration genuinely can't do it. Custom module development - Python, XML, QWeb, OWL. New models and business logic, automated workflows, custom PDF reports and print templates, portal pages for clients or suppliers, dashboards. Migrations and data — moving from spreadsheets or another ERP into Odoo, version upgrades (16-17-18-19), data cleaning and import with real validation, not just a CSV dump. Integrations - payment and shipping providers, marketplaces, external APIs, Telegram bots for approvals and notifications, and any third-party system over REST or JSON-RPC. Support and maintenance - bug fixes, performance work on slow databases, small feature requests, ongoing retainer if that's what you need. How I work I own the technical side so you don't have to manage it. I'll tell you when a request is a bad idea and what to do instead, and I'll tell you when something is out of scope rather than quietly padding the invoice. Clear scope, direct communication, no hand-holding required. Recent work Multi-company Odoo 19 setup for a cosmetics manufacturer - separate legal entities, shared product catalogue, and a restricted client portal so partner brands see only their own orders and production status. Odoo 19 on odoo.sh for a private clinic - eight custom modules covering appointments, treatment records, staff scheduling and consent documents, plus full localisation into a second language. ERP migration for a German e-commerce company - product, stock and order history into Odoo without stopping the shop. Insurance broker module (Odoo 18) - policy and renewal tracking, custom QWeb print templates, Telegram bot for agent notifications. Also available for Full-stack and backend work outside Odoo: web apps and APIs, SaaS products, Claude/LLM integration, Telegram bot backends, AWS deployment. Recent example — an AI CRM analytics platform: sales teams connect HubSpot, Salesforce or Pipedrive, data syncs every 15 minutes through a Redis job queue, and the team asks questions about their pipeline in plain English. Built on Node/TypeScript with a multi-tenant Postgres backend. Stack Odoo: Odoo 16–19, odoo.sh, custom modules (Python/XML), QWeb, OWL, ORM, JSON-RPC/XML-RPC, Odoo Studio, OCA modules, data migration & version upgrades Backend: Python, Node.js, TypeScript, FastAPI, Django, Express/NestJS, Laravel (PHP), C#, Java, Celery, BullMQ, WebSockets, REST, GraphQL, gRPC Frontend: React, Next.js, TypeScript, Angular, Vue, Tailwind CSS, Vite, shadcn/ui, HTML/CSS Databases: PostgreSQL, MySQL, Supabase, Redis, MongoDB, Elasticsearch, query optimization & indexing Infrastructure / DevOps: Docker, Docker Compose, Nginx, Linux (Ubuntu/Debian), AWS (EC2, S3, RDS), Google Cloud, Railway, Kubernetes, Terraform, GitHub Actions, CI/CD, Cloudflare, Sentry, Prometheus/Grafana AI & automation: Claude API, Anthropic MCP, OpenAI API, LangChain, RAG & vector search (pgvector), n8n, Zapier, Claude Code, prompt engineering, ML model integration Integrations: Stripe, PayPal, HubSpot, Salesforce, Pipedrive, Shopify, WooCommerce, Telegram Bot API, Google OAuth / Calendar / Drive, Twilio, webhooks Tools: Git, GitHub, Jira, Postman, pytest, Playwright, Figma

👨‍👩‍👦‍👦 Kids: 4. 🐕Dogs: 2. 📱 Mobile Apps: 80+. 🏥 I build great healthcare apps. My handwriting is like a real doctor's. ⏰ Deadlines - never missed. Family birthdays... - sorry, Mom. --- I am mobile app developer with 14+ years of mobile app development, 80+ apps shipped, and a Flutter app past 2M+ users. ⭐ Top Rated on Upwork since 2018 · 5.0 on Clutch · 4.93 on GoodFirms If you're starting a Flutter app from scratch, I take it from concept to the App Store. If your iOS or Android app has stalled, I get it shipping again. If a previous mobile app developer missed what you needed, that's where I usually come in. 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 ✔️ As a Flutter developer I ship one codebase to iOS and Android at once, up to 40% cheaper than two native builds. ✔️ I am mobile app design and mobile app development specialist. No handoffs, no two contractors blaming each other. ✔️ Healthcare apps that pass HIPAA and GDPR. Logistics apps that keep working when the signal drops. ✔️ Hire the wrong mobile app developer and the scope gaps surface at the first build. I flag them earlier, and clients have brought me in to redo exactly that. ✔️ 80+ apps in, I have already hit the problems your build will run into. One app I built passed 2M+ users. Send me what you're building and I'll reply with a scope estimate and the first technical decision I'd settle. Best, Stan ————— Selected work and skills: HEALTHCARE APP DEVELOPMENT, 25+ projects - I am Healthcare App Developer with 5,000+ secure patient transfers a year across a 25+ vehicle fleet and a 24/7 control room. - I am HIPAA Developer with secure PHI handling for 5,000+ patient records - HL7 FHIR syncing records across 3 hospital systems - GDPR compliance on 100% of builds - Healthcare Apps prompting status updates every 30 minutes across 4 job levels - Healthcare SaaS development, Secure Care UK: replaced a third-party subscriber platform, cutting running costs $3,000+ a month. - I am Full Stack Developer Healthcare, Secure Care UK across web and mobile: 5,000+ transfers coordinated from one system. - I am Flutter developer, Patient Gateway UK medical transport: Firebase sync and real-time driver tracking with dispatch updates under 5 seconds. - Flutter Developer, Rheo health wearable: 5 vital-sign categories streamed over LTE in real time, secure PHI handling tested across iOS, Android, and web. - Mobile App Developer, fertility health app: bug-free rate raised 85% to 96% in a two-week retest, delivered in 3 months against a 4-month estimate. LOGISTICS APP DEVELOPMENT, 20+ projects - I am Logistics App Developer with last-mile delivery app: satisfaction raised 35% to 85%, wait times cut 34% in low-signal areas, 12 partners signed in 3 months. MOBILE APP DEVELOPMENT, 80+ apps - Flutter developer, mobile app development: 30+ Flutter projects, build cycles cut 50% and costs 40% vs native with Flutter development. - Flutter App Developer: 2 app stores from one Flutter codebase, 50,000+ installs in year one. - Mobile App Developer, Quran learning app: 2M+ users, rebuilt in 4 months. - Flutter Developer, train ticketing app: shipped in 6 months against a 7-month deadline, NFC storing 5 tickets offline across 20 screens. - iOS Developer and Swift iOS Developer: native iOS apps shipped since 2012 in Swift, one rebuilt to full feature parity in 8 weeks. - Android App Developer: rebuilt an unstable Android app, crashes cut 90% and rating lifted to 4.7. - Mobile app developer, Android Developer and Mobile Developer: native and cross-platform mobile development across 80+ apps. FULL STACK - I am Full Stack Developer: 150+ products shipped end to end, frontend, backend, and database. - Full Stack Mobile Developer: frontend plus backend on 30+ products, delivered end to end. MOBILE APP DESIGN, 40+ designs - I am Mobile app designer, mobile app design expert: 70+ wireframes and 40+ mobile app designs, engagement up 40%. - Mobile UI UX Design: consistent UI across both platforms on 40+ screens, task completion up 30%. - Mobile App UI UX Design in Figma: Figma App Design and Figma Mobile App Designer work across 35+ flows. REACT NATIVE - As a React Native Developer running React Native Development, I have shipped 10+ React Native apps live on the App Store and Google Play. That work spans React Native Developer Expo, React Native App Developer, and React Native Expert roles, covering React Native Expo, React Native iOS, React Native Firebase, and React Native UI UX builds, and it lifted repeat usage 12-19%. Elsewhere, as an AI App Developer and AI Mobile App Developer, my AI Mobile App Development adds on-device intelligence that cut manual work 60%. As a FlutterFlow developer I turn out prototypes 3x faster in FlutterFlow, and as a Full Stack App Developer I run Python and Wordpress backends alongside React Native and mobile React apps across 30+ products. iOS Development, Android App Development, Swift, Node.js, PHP, JavaScript, Java, Desktop Application, Web Design.

🟢 Send me what you have so far even a rough idea or a Figma link and I'll send back a short plan of how I'd approach. 🫵 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a full stack developer React Node I ship SaaS platforms used by 750K+ users. ✔️ As a React developer I build dashboards, analytics, and React frontends serving 130K+ signups, raising activation by 25%. ✔️ As a front end developer I architect component systems across 1,800+ organizations, lifting engagement 18–27%. 🔥 𝗔𝗖𝗛𝗜𝗘𝗩𝗘𝗠𝗘𝗡𝗧𝗦 ✔️ 19+ years and 100+ projects as a full stack developer React Node across SaaS Platform, MVP, and Event Management delivery. ✔️ 750K+ users and 1,800+ organizations in production, with 1.5M+ interactions and $30M+ processed as a React developer and front end developer. ✔️ 130K+ signups delivered as a React developer building auth, dashboards, and payments, raising signup completion by 35%. ✔️ 10+ years shipping multi-tenant products as a SaaS developer and full stack developer React Node. 🚚 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ As a full stack developer React Node I built NFL FLAG Youth Sports, an Event Management Platform serving 750K+ participants with registration, ticketing, scheduling, and analytics, cutting registration time by 45%. ✔️ As a React developer I built University Athlete Recruitment, a multi-tenant SaaS matching 130K+ athletes with matching algorithms, RBAC, reaching 92% match accuracy. ✔️ As a front end developer I built SportWrench, an Event Management Platform with scheduling, ticketing, and updates at 100% performance compliance, handling 50K+ concurrent users. ✔️ As a full stack developer React Node I architect SaaS, Stripe Connect split payments, and real-time analytics, onboarding tenants 60% faster. ✔️ As a React developer I build trade show software, conference management, and booth booking with Stripe Connect across 1,800+ organizations, processing $30M+. ✔️ As a React developer I build high-load check-in handling 1,000+ QR badge scans per hour, cutting check-in queues by 70%. ✔️ As a front end developer I build SSR/SSG frontends in Next.js, improving load speed by 50%. ✔️ As a front end developer I build engagement tools, lifting member engagement by 40%. ✔️ As a React developer and MERN stack developer, MERN developer, and full stack MERN engineer, I deliver SaaS development on MERN and MERN stack architecture, shipping MVPs in 4–6 weeks. ✔️ As a Full-Stack Developer, Full Stack Developer, fullstack developer, fullstack web developer, and Full-stack dev, I deliver Association Management Software (AMS) with member portals, dues management, CE credits, and certification workflows, automating 80% of admin work. ✔️ As a React web developer, React js developer, full stack React developer, and full stack developer React, I build SSR/SSG platforms, cutting checkout drop-off by 30%. ✔️ As a front end developer React, front end web developer, Front End Web Developer, Front End Website Developer, front end engineer, and front end designer, I deliver UI, dashboards, and responsive UI, with 99.9% UI uptime. ✔️ As a Shopify front end developer, front end developer Next.js, angular front end, front end angular developer, and front end developer vue, I build storefronts, Next.js frontends, and Angular and Vue migrations, improving conversion 15–22%. ✔️ As a React Native developer, React Native mobile app developer, and mobile app developer, I build React Native mobile apps for booking, notifications, and payments, with 12–19% better repeat usage. ✔️ As a Python developer and Python full stack developer, I build Django backends and automation across distributed teams, including React developers Ethiopia setups, cutting delivery risk by 28%. ✔️ As a SaaS developer and web developer, I deliver react developer firebase integrations, Wordpress full stack builds, full stack developer PHP and full stack developer Laravel work, and WordPress developer customizations, with 99%+ delivery consistency. ✔️ Hired as a Senior Full-Stack Developer, Senior Full Stack Engineer, Senior Full-Stack Software Engineer, Senior React Developer, Senior Backend Engineer, Backend Developer, Integration Engineer, Full-Stack Engineer, Frontend Developer, Front-End Developer, and Front end Developer across 6–18 month engagements. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ Frontend: React, react js, Java React, frontend React, TypeScript, Redux, JavaScript, HTML, HTML5, CSS, CSS3, Bootstrap, React Bootstrap, jQuery, and Responsive Design, with deep front end development and Front-End Development practice. ✔️ Backend: Node.js, backend nodejs, PHP, Python, SQL, MongoDB, and PostgreSQL, delivered as a Node.js developer and Backend Developer. ✔️ Frameworks & CMS: Next.js, NestJS, Vue.js, Angular, Laravel, .NET full stack, WordPress, Shopify, and Webflow. ✔️ Practice: Software Architecture & Design, Software Development, Agile Software Development, Software Design, Software Debugging, Git, Web Design, and Desktop Application work with a UX designer mindset.

Looking for a skilled Full-stack Developer with expertise in Python, Django, FastAPI, and React?🌟 I specialize in delivering high-performance web applications, combining the power of Python frameworks like Django and FastAPI with modern frontend technologies such as React. I’m also passionate about integrating AI & ML solutions, creating intelligent systems that drive innovation and solve real-world problems efficiently. 🌟 Quick Overview ✔ Developed 15+ projects with a strong focus on delivering value and improving business processes. ✔ Created high-performance web apps using Django, FastAPI, React, Next.js, and JavaScript, ensuring smooth user experiences. ✔ Integrated PostgreSQL & SQL (ORM) databases, optimizing data handling and performance. ✔ Led the development of secure APIs with thousands of active users, ensuring reliability and scalability. 🔧 Key Skills & Technologies ✔Backend Development: Django, FastAPI, Python (Django DRF, SQL (ORM)), building fast and secure server-side APIs. ✔Frontend Development: React.js, Next.js, JavaScript, creating seamless, responsive, and dynamic user interfaces. ✔ Database Management: PostgreSQL, MySQL, SQLite, with a focus on high performance and scalability. ✔ Version Control & CI/CD: Git, GitHub, GitLab, automating deployment processes for faster time-to-market. ✔AI & ML Expertise: Proficient in machine learning frameworks such as TensorFlow, PyTorch, and Keras, enabling AI-driven solutions to enhance your business. 💼 Industry Experience I’ve built custom solutions across multiple industries, including: Fintech: Scalable financial platforms with real-time data processing. E-commerce: Integrated payment systems and optimized inventory management. Healthcare: HIPAA-compliant patient management systems and telemedicine solutions. Logistics: Real-time tracking systems and fleet management tools. TravelTech: Customized booking systems and travel management solutions. Stop Waiting, Let’s Start Building! If you’re looking for a reliable, results-driven developer who can transform your ideas into reality, let’s connect! I’m ready to collaborate and bring your vision to life with clean, scalable code and exceptional performance. Find me with the keywords below: API, Python, JavaScript, Django, FastAPI, React, Next.js, Web Development, Full-Stack Development, PostgreSQL, SQL, RESTful API, Git, Docker, CI/CD, API Integration, React Hooks, Unit Testing, Web Application, React.js, SaaS, Automation, Backend, Frontend.

Full Stack Developer, 12+ years and 150+ products shipped across 20+ countries. I lead a team of Laravel and Vue.js developers. The work I am proudest of runs real operations: medical transport moving 5,000+ patients a year, delivery fleets planning 500+ routes a day. Top Rated on Upwork since 2018. Clutch 5.0 across 20 reviews, GoodFirms 4.93 across 25. You probably recognize yourself in one of these. You are launching a product and want a first version that still holds up a year in. You are running on a system that has gotten slow and fragile, and hard to hand to a new developer. Or you work in a field where the software has to hold up because people depend on what it moves. WHAT YOU GET ✔️ A Full Stack Developer team behind your build. I lead Laravel developer and Vue.js developer specialists plus a WordPress developer. One person out does not stall the build. ✔️ Ratings you can check. 98% positive reviews across 100+ web projects, an 8-year client relationship still running. ✔️ Systems that hold under real load. The Secure Care UK platform runs 5,000+ secure patient transfers a year across a 25+ vehicle fleet and a 24/7 control room. ✔️ Code you can maintain after handover. Documentation, tests and knowledge transfer. You are never locked into depending on us. Send me what you are building or the system you need fixed, and I will reply with an architecture plan and the first decision I would settle. Kind regards, Alexandra ----- HEALTHCARE, 25+ PROJECTS DELIVERED - Full Stack Developer, Secure Care UK medical transport: 5,000+ secure patient transfers a year, 25+ vehicle fleet, 24/7 control room. - Healthcare App Developer, Secure Care UK tablet app: status prompts every 30 minutes across 4 job levels, saving a few thousand a month over the old platform. - Healthcare App Developer, Rheo vitals wearable: 5 vital-sign categories streamed over LTE in real time with per-user alert thresholds. - HIPAA Developer, fertility tracking app: bug-free rate raised from 85% to 96% on retest, delivered in 3 months against a 4-month estimate. - Full Stack Developer, Healthcare Apps portfolio: 25+ healthcare projects across web and mobile in 12+ years. LOGISTICS, 20+ PROJECTS DELIVERED - Logistics App Developer, multi-depot delivery system: 12+ depots, 500+ daily routes, automated planning. - Laravel Developer, multi-tenant fleet platform: 5+ subsidiaries on one Full Stack Web Developer build with automated route planning. - Logistics App Developer, courier fleet tool: 3 regions, 100+ active drivers, offline navigation that re-syncs on reconnect. - Full Stack Developer, last-mile logistics app: customer satisfaction lifted from 35% to 85%, delivery wait cut 34% in low-signal areas. - Back End Developer and Backend Developer, logistics launch: 12 new partners signed within 3 months, 8 more in the pipeline. WEB PLATFORMS AND LARAVEL - Full Stack Developer, The Cultivist rebuild: 90% jump in user base after launch, 8-year relationship and counting. - Laravel Developer, FATBZ crypto platform: dual-wallet setup, in-house RNG engine, ForumPay for deposits, payouts and USDT conversion. - Laravel Developer and Expert Laravel Developer, PHP Laravel API work: 100+ web solutions over 12 years in web development. - Full Stack Developer, Laravel backend developer builds: REST APIs with clean architecture, Laravel Docker deployment, Laravel Wordpress integrations. - PHP Developer, Wordpress Developer work: custom themes, plugin development and web design overhauls. VUE.JS AND FRONT END - Vue.js Developer, admin dashboards: reusable component libraries in Vue Tailwind with Vuex and Pinia state. - Vue.js Developer, UX UI Vue.js interfaces: 35+ web designs and 70+ wireframes behind the builds. - Vue.js Developer, Vue.js Node.js stack: API-driven dashboards with GraphQL and JWT auth. - Front End Developer, Nuxt Developer work: Vue.js Nuxt and Vue Nuxt server-rendered front ends. - Vue.js Developer and React Developer collaboration: PHP Laravel React and Laravel Vue delivery with trusted partners. DESIGN AND MORE - Web Designer and Website Designer, product design: 40+ mobile app designs, 35+ web designs, 70+ wireframes. - Website Developer and Full Stack Website Developer, web development: 150+ products shipped, used in 20+ countries. - MORE: Web Design, Web Development, Full Stack Developer AI, Full Stack MERN, Full Stack React Developer, Full Stack Developer React Node, Python Full Stack Developer, Full Stack Web App, Full Stack Developer Webflow, Full Stack Laravel, Full Stack Developer Laravel, Vue Js Wordpress, Webflow Developer, Shopify Web Developer, Wix Website Developer, Web Scraping: 150+ products, 12+ years, Top Rated since 2018. SKILLS: HTML, HTML5, CSS, CSS 3, JavaScript, jQuery, PHP, Python, SQL, React, Node.js, Angular, WordPress, Bootstrap, Git, software design, software architecture & design, software development, software debugging, desktop application.