I am an educated (university level with Microsoft and Symantec certificates) and experienced software and web developer (Visual C#, ASP.NET(Core), SQL Server, Kendo UI, JavaScript, OpenAI, React, Angular, NodeJS ) located in Serbia. I have extensive experience building Windows, web applications, database solutions, and scrapers. I can work as a standalone developer or as part of a team.

⭐️⭐️⭐️⭐️⭐️ Top 1% Expert-Vetted Web Developer on Upwork 📍 No short-term projects 📞 Kick-off with the team is mandatory 🧨 Available for a quick project start ★ Top-100 Service Provider by Clutch ★ $500M+ Raised by clients ★ 99+ International Awards ★ 15+ years of expertise (NOKIA, OPERA, OPPO, UDEMY, AUTH0, etc.) 👋 Hi, I'm Sergii! I'm a senior web developer, full stack developer Next.js specialist, and front end developer with 10+ years of experience building SaaS platforms, eCommerce products, AI applications, and custom web solutions. Over the years, I've helped launch 100+ products using React, React NextJS, Next.js, and modern JavaScript frameworks. My work combines technical architecture, front-end engineering, and product thinking to create fast, scalable applications that deliver measurable business results. 🏆 Why Clients Work With Me ✔ 100+ React, React Next, and Next.js projects delivered ✔ 50+ fully launched products across SaaS, AI, fintech, and eCommerce ✔ $500M+ raised by companies I've supported ✔ 20+ Upwork clients and long-term partnerships ✔ 30+ Shopify and Shopify Webflow projects completed ✔ Mobile and web products used by thousands of daily users ✔ Extensive experience as a front end developer React and front end Next specialist 🚀 Core Expertise 📌 Front-End Development As a front end developer, front end web developer, and front end designer, I've built interfaces for startups, enterprise products, and high-growth SaaS companies. Using React, React NextJS, Next.js, TypeScript, Tailwind, and modern UI frameworks, I create scalable applications focused on performance, maintainability, and user experience. My front-end work has helped companies reduce load times, improve conversion rates, and accelerate product delivery through reusable component systems and scalable architecture. 📌 React & Next.js Development I've delivered 100+ projects using React, React Next, and Next.js, including SaaS platforms, dashboards, marketplaces, AI tools, and enterprise applications. As a front end developer React specialist and full stack developer Next expert, I focus on building high-performance applications with clean architecture, SSR, SEO optimization, and long-term scalability. 📌 Mobile App Development Beyond web applications, I have extensive experience in mobile app development using React Native. I've helped teams launch mobile apps for healthcare, fintech, logistics, education, and SaaS businesses. As a mobile app developer, I work across the entire product lifecycle—from mobile app design and architecture to deployment and optimization. My experience includes React Native Mobile applications, cross-platform development, and React Native Full Stack solutions connected to modern APIs and cloud infrastructure. 📌 Shopify & Webflow Solutions I've worked on 30+ Shopify and Shopify Webflow projects, helping brands improve storefront performance, customer experience, and conversion rates. As a Shopify front end developer, I build custom themes, Shopify Hydrogen storefronts, and modern eCommerce experiences using Liquid, React, and headless architectures. I also collaborate closely with Webflow teams, helping businesses bridge design and development through scalable Webflow implementations and front-end optimization. 📌 AI & Python Integrations As a front end developer Python specialist, I've worked on AI-powered products featuring OpenAI integrations, vector search, chat interfaces, workflow automation, and custom dashboards. My experience includes Python APIs, automation workflows, AI assistants, and modern SaaS products powered by LLM technologies. 💻 Technology Stack React • React Next • React NextJS • Next.js • React Native • React Native Mobile • React Native Full Stack TypeScript • JavaScript • Node.js • NestJS • Express • Fastify Shopify • Shopify Webflow • Webflow • WordPress MongoDB • PostgreSQL • MySQL AWS • Google Cloud • Azure Tailwind • Storybook • GraphQL • Redux 🔥 What Clients Hire Me For ✔ Front End Developer React projects ✔ Full Stack Developer Next.js applications ✔ React Native Mobile App Development ✔ Shopify Front End Developer services ✔ Webflow and Shopify Webflow implementations ✔ Front End Designer and UI implementation ✔ Front End Developer Python integrations ✔ SaaS platforms and enterprise applications ✔ Mobile App Design and development ✔ Custom Web Development solutions 💎 Why Work With Me I combine the expertise of a web developer, front end developer, mobile app developer, and full stack developer into one delivery process. Clients work with me because I don't just build features—I help create products that scale, perform, and generate business value. Whether you need a front end developer React specialist, Shopify front end developer, React Native full stack engineer, mobile app developer, Webflow expert, or full stack developer Next.js partner, I'd be happy to discuss your project.

Your business’s secret weapon - I work with ⭐ Fortune 500s, Start-Ups, and Individuals ⭐ to navigate technologies like AI, blockchain, and complex software infrastructure, daily. Lead @ STAYKool Productions, Co-founder of Squizz Digital Signage (squizz.tv). I often serve as a domain expert, a leader, and a keystone member of any team I integrate with. During my decade+ of experience, I have designed, built, and released multiple SaaS products, individually and as part of a larger team. 📈 I can help your business succeed by: - Serving as an interim or fractional CTO for your growing business. - Providing technical or software development support. - Updating your Android, IOS, or Cross-platform app. - Performing technical due diligence. - Set up payment gateways using services like Stripe, Square, or BrainTree. - Integrating ChatGPT (or other forms of AI) into your business processes and workflows. - Creating sales and marketing funnels, that convert. - Orchestrating social media and Google Ads campaigns - which tug on heartstrings. - Identifying and addressing processes, and shortfalls inhibiting growth. - In addition to any other Admin or IT-oriented consultation roles. 🦄 A wearer of many hats in my own businesses and for past employers, I leverage that experience, in tandem with my professional contacts/team, to efficiently grow your business and increase revenue. "Growth Hacking", if you will. Please ask questions! I'm happy to be a part of your team, even if it is for a short time. # Keywords: Multi-agent AI, Generative AI, GPT-based models, Large Language Models (LLMs), System Design, Microservices, Kubernetes, A/B Testing, AI-Powered Web Applications, Intelligent Systems, Automated Content Generation, AI-Driven Analytics, Web Security, Automated Testing, Web Accessibility, Big Data, Feature Engineering, Model Training, Data Science, Data Analysis, Data Visualization, Data Cleaning, Python, Django, Flask, Node.js, Express.js, ASP.NET Core, Laravel, Go, Java, C#, TypeScript, React.js, Angular, Vue.js, Serverless Architecture, Cloud Computing, Docker, CI/CD, RESTful APIs, Single Page Applications (SPAs), NoSQL, MongoDB, Elasticsearch, PostgreSQL, Oracle SQL Server, MySQL, SQL, GitHub, GitLab, Bitbucket, Git, UI/UX Design, Responsive Web Design, Problem-Solving, Analytical Thinking, Object-Oriented Programming (OOP), Software Development Life Cycle (SDLC), Agile Methodologies, Scrum, Clean Code, Debugging, API Development, Communication Skills, Team Collaboration, jQuery, Bootstrap, Material-UI, HTML5, CSS3, Sass/SCSS, Less

Need a Full Stack Developer who ships production-grade AI-integrated SaaS on time? You're in the right spot. 🏆 𝟭𝟬+ years as a Full Stack Developer (ex-Amazon, UT Austin MS) 📊 $𝟰𝟬𝟬𝗞+ earned on Upwork across 𝟴𝟱 Full Stack Developer projects 🎯 Top Rated Plus with 𝟵𝟵% Job Success Score ⚡ 𝟭𝟬𝟬+ production builds as lead Full Stack Developer ✅ Full Stack Developer for AI agents, SaaS MVPs, and workflow automation 💼 Austin, TX based | Full Stack Developer team with global capacity ⭐⭐⭐⭐⭐ 𝑰 𝒉𝒂𝒗𝒆 𝒘𝒐𝒓𝒌𝒆𝒅 𝒘𝒊𝒕𝒉 𝒔𝒆𝒗𝒆𝒓𝒂𝒍 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒔𝒆𝒓𝒗𝒊𝒄𝒆 𝒑𝒓𝒐𝒗𝒊𝒅𝒆𝒓𝒔 𝒂𝒏𝒅 𝒃𝒆𝒆𝒏 𝒊𝒎𝒑𝒓𝒆𝒔𝒔𝒆𝒅 𝒘𝒊𝒕𝒉 𝑨𝒔𝒂𝒅 𝒂𝒏𝒅 𝒉𝒊𝒔 𝒕𝒆𝒂𝒎 𝒐𝒏 𝒆𝒗𝒆𝒓𝒚 𝒍𝒆𝒗𝒆𝒍. 𝑬𝒙𝒄𝒆𝒍𝒍𝒆𝒏𝒕 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒐𝒓𝒔, 𝒑𝒓𝒐𝒂𝒄𝒕𝒊𝒗𝒆 𝒊𝒏 𝒑𝒓𝒐𝒃𝒍𝒆𝒎-𝒔𝒐𝒍𝒗𝒊𝒏𝒈, 𝒂𝒏𝒅 𝒕𝒉𝒆 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 𝒐𝒖𝒕𝒑𝒖𝒕 𝒘𝒂𝒔 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏-𝒓𝒆𝒂𝒅𝒚 𝒇𝒓𝒐𝒎 𝒅𝒂𝒚 𝒐𝒏𝒆. (Julian M., Upwork, 2025) As a Senior Full Stack Developer and agency lead based in Austin, I build AI-integrated SaaS platforms and custom automation for founders who need real engineering judgment. My team and I focus on Full Stack Developer work that actually ships: React and TypeScript frontends, Python and Node.js backends, AI layers that hold up in production. Full Stack Developer-first approach, agency-grade execution. Ex-Amazon Full Stack Developer, UT Austin Computer Science. 🔶 𝗣𝗿𝗼𝗽𝗧𝗲𝗰𝗵 𝗔𝗜 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 ($𝟳𝟬𝗞): Lead Full Stack Developer on an AI-driven real estate assistant for a US startup. React, TypeScript, Python, OpenAI API, Supabase. Shipped to production. 🔶 𝗘𝗹𝗲𝘃𝗲𝗻𝗟𝗮𝗯𝘀 𝗩𝗼𝗶𝗰𝗲 𝗔𝗴𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺: Full Stack Developer architecture connecting voice AI to Zapier, CRM, and calendar booking. 🔶 𝗟𝗶𝗻𝗸𝗲𝗱𝗜𝗻 𝗟𝗲𝗮𝗱 𝗚𝗲𝗻 𝗼𝗻 𝗻𝟴𝗻: Full Stack Developer build processing 10K+ profiles/day with AI enrichment, deduplication, and CRM sync. 🔶 𝗠𝘂𝗹𝘁𝗶-𝗧𝗲𝗻𝗮𝗻𝘁 𝗔𝗜 𝗦𝗘𝗢 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: Full Stack Developer from zero to launch. Next.js, FastAPI, PostgreSQL, LangChain. 🚀 𝗔𝗜-𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗦𝗮𝗮𝗦 & 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 ✔️ Full Stack Developer for AI agents, RAG systems, LangChain and LangGraph workflows ✔️ OpenAI API, Claude API, and custom LLM integration with prompt reliability and context management ✔️ Full Stack Developer on FastAPI, Node.js, Next.js, Supabase, and PostgreSQL data layers 🔄 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 ✔️ Full Stack Developer for n8n, Zapier, and Make (dot) com at production scale ✔️ Full Stack Developer integrations: CRMs, databases, email, payments, AI services ✔️ Error handling, retry logic, and data consistency across systems ⚡ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 𝗠𝗩𝗣 𝘁𝗼 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗦𝗮𝗮𝗦 ✔️ Full Stack Developer builds on React, TypeScript, Python, MVP to production-grade SaaS ✔️ Multi-tenant architecture, auth, permissions, and scaling patterns ✔️ DevOps and deployment on AWS, Vercel, Railway, and Supabase 🎯 𝗪𝗵𝗼 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗮𝘀 𝗮 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 🔹 Founders building AI-native SaaS products from zero 🔹 Agencies needing Full Stack Developer capacity for client work 🔹 Series A to C startups scaling production systems 🔹 Operators replacing broken n8n, Zapier, or Make .com workflows with a real Full Stack Developer 𝗡𝗼𝘁 𝗮 𝗳𝗶𝘁 𝗶𝗳: you need a solo Full Stack Developer for a $500 landing page, WordPress customization, or trading/crypto systems. 💡 𝗛𝗼𝘄 𝘄𝗲 𝘄𝗼𝗿𝗸: ✔️ Day 1-3: Discovery call, architecture doc, and scoped milestones from your Full Stack Developer team ✔️ Week 1: First working increment deployed to staging ✔️ Ongoing: Weekly demos, async Slack updates, documented handoffs from the Full Stack Developer lead ✔️ What you get: Production Full Stack Developer output, full source, handoff docs, direct team access 📞 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗺𝗼𝘃𝗲? Send the job details and we will reply with a scoped plan within 24 hours. Looking for a Full Stack Developer who ships? Let's talk.

As a React Developer and Full Stack Developer I build custom Web Application products for B2B clients, from interface to backend. Most of my work is Full Stack Developer React Node delivery, where a React frontend and a Node.js backend support one business workflow end to end. As a Node.js Developer I own the REST API logic, authentication, roles and permissions, and the data layer behind each product. My focus is practical Web Application Development that ships, scales, and stays maintainable, with clean API Integration at the core. Across 14+ years and 130+ completed projects I have built 60+ SaaS, CRM and dashboard products, 40+ admin panels and client portals, and 200+ REST API integrations. As a React Developer and Full Stack Developer with experience leading development teams of up to 6, I have shipped for 50+ EU and US B2B clients across SaaS platforms, CRM systems, marketplaces, booking websites and API Integration projects. As a React Developer I build Web Application interfaces with React.js, Next.js, TypeScript and Responsive UI , wired to live data through API Integration . As a React Frontend Developer and Frontend Developer I deliver usable, fast interfaces — data tables, filters, admin panels and client portals. On the backend side, as a Node.js Developer and Backend Developer I build the REST API layer, ExpressJS services, authentication, roles and permissions, payment flows and CRM integrations. Many clients come to me as a Node.js Developer when a frontend already exists but the API, the data model and the business logic need to be done right. As a Backend Developer I keep the Node.js layer predictable and documented, and as a Node.js Developer I handle the API Integration between third-party services, the database and the frontend. A typical Full Stack Developer React Node project for me looks like this: a SaaS platform or internal business tool with a React frontend, a Node.js backend, a structured database and an admin workflow for the team behind it. On every Full Stack Developer React Node build I design the database structure, the REST API , the dashboards and the permissions model so the product holds up as it grows. This Full Stack Developer React Node approach keeps frontend and backend in one system. Hiring one Full Stack Developer React Node engineer also keeps the React Developer and Node.js Developer decisions consistent across the whole build. I also work as a Directus Developer and Headless CMS Developer . On 20+ content-driven and data-heavy products I use Directus CMS or Strapi as a headless backend, which gives clients a clean admin panel and an API-ready foundation. As a Directus Developer I model the data, set roles and permissions, and connect a React frontend through REST API ; as a Strapi Developer I do the same on Strapi. Headless CMS work with Directus CMS pairs naturally with my React Developer and Node.js Developer delivery. Stack I use daily: React, React.js, Next.js, Node.js, TypeScript and JavaScript on the application side; ExpressJS, REST API and API Integration on the service side; SQL, MySQL, MongoDB, Firebase and Supabase for data; Directus CMS and Strapi for headless content. Authentication, roles and permissions, payment flows, dashboards, data tables, filters and admin workflows are standard parts of how I deliver Web Application Development . How I work on a Full Stack Developer React Node project: discovery and scope first, then architecture and backlog, design where needed, development in sprints, QA on staging, production release, and support after launch. As a Web Developer with 14+ years behind me, my main promise is delivery predictability — clear scope and no surprises. As a JavaScript Developer I write code the next developer can actually read and extend. Typical projects clients hire me for: SaaS platform development, CRM systems, admin panels, marketplaces, booking websites, lead generation websites, dashboards, client portals, internal business tools, e-commerce platforms and API-based Web Application work with workflow automation and business automation. Clients also find me under related searches that match my real stack. On the React side: React Native Developer , React Native App Developer , React Next.js Developer , React Developer Firebase , and Full Stack Developer Supabase React . On the full stack side: Python Full Stack Developer , Full Stack Developer AI , Full Stack Developer Shopify , Full Stack React , Full Stack Node.js React and Node.js React . On the backend: Node.js Backend Developer and Back End Developer Node.js . I also fit Front-End Developer Full-Stack , Python Developer , WordPress Developer , Mobile App Developer and Senior Full Stack Developer . If you need a React Developer , a Full Stack Developer React Node engineer, or a Node.js Developer for a serious product, I can take it from architecture through release and support. Let's talk about your product and what it needs to do.

⚡ 14-Day MVP Delivery – Your production-ready mobile app launched in 2 weeks, not 2 months 🏆 Former Apple iOS Engineer – Silicon Valley standards meet startup speed for investor-ready applications 📱 70+ Apps Launched – Proven track record turning founder ideas into funded businesses on iOS and Android Need Expert Mobile App Development That Actually Delivers on Time? I'm a former Apple iOS engineer offering professional mobile app development for startup founders who need results fast. While other mobile app development agencies take 3-6 months and disappear mid-project, I deliver market-ready MVPs in 14 days or less. No crashes. No excuses. No communication gaps. I've successfully launched 70+ applications across the iOS App Store and Google Play Store through strategic mobile app development. But here's what matters more: I've helped multiple founders turn their ideas into investor-ready apps that secured real funding. One client came to me after their previous mobile app development team ghosted them 3 months into the project. They had an investor meeting in 2 weeks and nothing to show. I rebuilt their entire native app from scratch in 13 days using React Native. The app worked flawlessly in their pitch. They closed $500K in seed funding. That's the difference between a developer who codes and a developer who understands your real goal isn't just an app – it's launching your business before competitors beat you to market. I use test-driven mobile app development methodology with enterprise-grade architecture, so your app doesn't just work on day one. It scales as your business grows. You get weekly progress builds for continuous feedback, and I respond to messages within hours, not days. No more chasing developers who went silent. Whether you need iOS development, Flutter development, or cross-platform solutions with React Native, my mobile app development services deliver apps that look professional, function perfectly, and stay within your budget. No surprise costs. No endless revisions. Just a clear timeline and a finished product that's ready to make you money. Mobile App Development Services: - iOS App Development (Swift, native iOS development) - React Native Development (cross-platform iOS & Android apps) - Flutter Development (modern, scalable mobile applications) - MVP Development (investor-ready apps in 14 days) - Mobile App Design (professional UI/UX that converts) - App Store & Google Play Deployment (end-to-end launch support) Ready to Launch Your App Fast? If you're tired of mobile app development projects that drag on for months, developers who disappear, or apps that crash when you need them most – let's talk. Send me a message with your project details, and I'll show you exactly how my proven mobile app development process can get your app built, tested, and launched in 14 days. Every successful mobile app development project starts with a conversation. Your competitors aren't waiting. Neither should you.

Need to ship faster without losing control of quality? I lead a vetted, AI-native team that takes real ownership of your product and starts moving the needle in days, not weeks. I help founders, CTOs, and product owners turn roadmaps into shipped, scalable products. My team works as true partners, not order-takers — we obsess over the user, sweat the details, and make decisions through the lens of your business goals, not just the ticket in front of us. Here's what working with us looks like: thorough testing plans and clear documentation so quality holds as you grow, daily updates that report real progress instead of activity, and tight alignment to your priorities so every sprint moves the product forward. We build for scale from day one, so what we ship today doesn't become tomorrow's bottleneck. We've delivered across the full spectrum: consumer apps with 1M+ downloads like Christian Dating For Free, the marketing site for unicorns like Deepgram, and complex enterprise systems like Arriba Data Systems, a leading California platform for workers' compensation. That range means we're as comfortable with a focused 2–3 week build as we are with ongoing, flexible engagements that run for years. We're as comfortable with a focused 2–3 week build as we are with ongoing, flexible engagements that run for years. We're stack-agnostic across 100+ technologies — whether your product needs TypeScript, Dart, C#, or something else, we bring the right tools and senior engineers to the problem. The constant isn't the language; it's the ownership, accountability, and product thinking we bring to every engagement. You get the speed and flexibility of staff augmentation with the structure, visibility, and ownership of a real delivery partner. Can you share a bit about your product so we can schedule a quick 30-min call to confirm we're a great fit to work together?

𝐄𝐑𝐏 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭 || 𝐂𝐮𝐬𝐭𝐨𝐦 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐄𝐱𝐩𝐞𝐫𝐭 || 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐖𝐞𝐛 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 || 𝐇𝐑𝐌𝐒, 𝐀𝐜𝐜𝐨𝐮𝐧𝐭𝐢𝐧𝐠, 𝐀𝐓𝐒, 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦, 𝐏𝐫𝐨𝐩𝐞𝐫𝐭𝐲 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭, 𝐁𝐨𝐨𝐤𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦 ERP Expert with 10+ years of expertise building custom business platforms, ERP systems, HRMS, accounting solutions, and workflow automation. With 10+ years of experience in ERP consulting, business process automation, and custom software development, I help organizations transform complex operations into scalable, efficient, and data-driven digital ecosystems. I specialize in designing and developing enterprise-grade web applications, mobile applications, ERP systems, and custom business platforms tailored to unique business requirements. From requirement gathering and business process analysis to architecture design, development, integration, deployment, and support, I work closely with stakeholders to deliver solutions that improve efficiency, reduce operational costs, and drive business growth. Whether you're a startup building an MVP, a growing business streamlining operations, or an enterprise modernizing legacy systems, I can help translate your business vision into a powerful technology solution. Expertise / Core Systems 𝐄𝐑𝐏 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 & 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 • ERP Consultation & Digital Transformation • Business Process Analysis & Optimization • Business Requirement Documentation (BRD) • Software Requirement Specification (SRS) • Workflow Automation & Process Reengineering • Enterprise System Architecture Design • Multi-Department ERP Implementation 𝐇𝐑𝐌𝐒 & 𝐖𝐨𝐫𝐤𝐟𝐨𝐫𝐜𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Human Resource Management Systems (HRMS) • Payroll Management Software • Leave Management Systems • Time & Attendance Tracking • Performance Management Systems • Employee Self-Service Portals • Recruitment & Onboarding Automation 𝐑𝐞𝐜𝐫𝐮𝐢𝐭𝐦𝐞𝐧𝐭 & 𝐓𝐚𝐥𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Applicant Tracking Systems (ATS) • Candidate Management Platforms • Interview Scheduling Systems • Recruitment Workflow Automation • Talent Acquisition Dashboards 𝐅𝐢𝐧𝐚𝐧𝐜𝐞 & 𝐀𝐜𝐜𝐨𝐮𝐧𝐭𝐢𝐧𝐠 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 • Accounting Systems • Financial Management Platforms • Invoicing & Billing Systems • Expense Management Solutions • Budgeting & Forecasting Tools • Accounts Payable & Receivable Automation • Financial Reporting Dashboards 𝐏𝐫𝐨𝐩𝐞𝐫𝐭𝐲 & 𝐅𝐚𝐜𝐢𝐥𝐢𝐭𝐲 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Property Management Systems • Real Estate Management Platforms • Lease Management Solutions • Tenant & Owner Portals • Maintenance Management Systems • Rental Booking Platforms 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 & 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Project Management Systems • Task & Resource Management • Timesheet Management • Service Management Platforms • Ticketing & Helpdesk Systems • Asset Management Systems 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 & 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Document Management Systems (DMS) • Digital Approval Workflows • Contract Management Solutions • Knowledge Base Platforms • Enterprise Content Management 𝐁𝐨𝐨𝐤𝐢𝐧𝐠 & 𝐄𝐯𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 • Booking Systems • Reservation Platforms • Appointment Scheduling Solutions • Event Management Systems • Venue Management Platforms 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐏𝐨𝐫𝐭𝐚𝐥𝐬 • E-Commerce Platforms • Marketplace Development • Customer Self-Service Portals • Vendor Management Systems • Subscription Management Solutions • Order Management Systems 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 & 𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠 • Dashboard Development • Executive Reporting Systems • KPI Tracking Platforms • Business Intelligence Solutions • Data Visualization & Analytics • Real-Time Monitoring Dashboards 𝐄𝐑𝐏 & 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 • Odoo ERP • ERPNext / Frappe • SAP Integrations • Microsoft Dynamics Integrations 𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 • Automated manual workflows, reducing operational effort by up to 70% • Built enterprise ERP solutions supporting thousands of daily transactions • Reduced administrative processing time by 50–80% through automation • Delivered centralized business platforms replacing multiple disconnected systems • Improved reporting accuracy and executive visibility through real-time dashboards • Streamlined HR, finance, operations, and customer management processes • Successfully implemented scalable solutions across startups, SMBs, and enterprise organizations 𝐖𝐡𝐲 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬𝐞𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 • 10+ years of ERP consulting and enterprise software expertise • Strong understanding of business operations across multiple industries •. Ability to translate business requirements into scalable technical solutions

I help B2B companies replace spreadsheets, manual workflows, and disconnected tools with full-stack development, custom software development, system integrations, and workflow automation. Most of my work is focused on B2B SaaS development, custom SaaS solutions, logistics systems, operations platforms, and AI-powered automation that solves real business problems. With 15+ years in full-stack web development and 250+ delivered projects, I work as a founder and technical lead. I partner with clients in logistics, B2B services, and eCommerce to build custom CRM platforms, internal business systems, management systems, and operational software that reduce manual work, improve visibility, and give teams a more reliable way to run day-to-day operations. I'M A GOOD FIT IF • Your team still relies on Excel, Google Sheets, shared documents, or email threads to manage important workflows; • Your current SaaS platform, CRM, ERP, WMS, or internal business system has become hard to change and needs stronger technical direction; • You need a reliable full-stack development partner for API integrations between your internal systems and marketplaces, shipping carriers, payment gateways, or AI services. WHAT I BUILD • Full-stack development for custom B2B SaaS platforms, CRM solutions, and internal operations tools; • Logistics systems and fulfillment software, including TMS, route planning, dispatcher dashboards, cargo planning, warehouse management views, and inventory workflows; • System integrations, business process automation, and AI-powered automation that keep data in sync and reduce repetitive manual work. Recent examples include a TMS for 3PL and eCommerce fulfillment, a multi-source marketing analytics platform, and an AI-assisted translation workflow system. HOW I USUALLY WORK • Review your workflows, constraints, and required integrations, then define a clear scope and milestone plan; • Deliver iteratively with demos, staging, and QA before release; • Support stabilization, handover, documentation, and further improvement after launch. My full-stack development work usually covers backend architecture, frontend implementation, databases, API integrations, deployment, and long-term system support. CORE STACK: Laravel/PHP, Node.js, Vue, React, TypeScript, MySQL/PostgreSQL, AWS, Docker, REST/GraphQL, and integrations with marketplace, payment, shipping, and AI APIs. If you already have a project in mind, send me 3 - 5 sentences about your current workflow and what you want to improve. I'll reply with initial fit, a possible direction, and a rough budget/timeline range.

👋 Need a Front end Developer React who can take ownership of your product and deliver polished, production ready experiences? I'm a Top Rated Front end Developer React with 12+ years of commercial experience building SaaS platforms, dashboards, customer portals, and modern web applications. With $30K+ earned, 1100+ hours worked, and a 100% Job Success Score, I focus on creating scalable solutions that combine excellent user experience with maintainable architecture. As a React Full Stack Developer, I've helped clients across 15+ countries transform ideas into successful products and scalable platforms. I've contributed to applications ranging from startup MVPs to products serving more than 5 million end-users worldwide. I've built mobile applications used by millions, SaaS products powering growing businesses, and streaming platforms delivering video and audio experiences in real time across multiple markets. As a React Full Stack Developer and Full Stack Developer React Node.js, I contribute across the entire product lifecycle from frontend architecture and user experience to backend integrations and feature delivery. My experience as a Full Stack Developer React Node.js allows me to support complex business requirements while building reliable systems designed for growth. 🏆 Why Clients Work With Me • Top Rated with 100% Job Success • 12+ years of commercial development experience • $30K+ earned and 1100+ hours on Upwork • Product ownership • Scalable solutions • Reliable delivery As a React Full Stack Developer, I focus on delivering practical solutions that balance technical excellence with real business objectives. 🚀 Services 📌 Front End Development As a Front end Developer React Node.js, I build responsive, highperformance applications using React, Next.js, TypeScript, modern frontend practices. • Dashboards & Admin Panels • Customer Portals • Internal Tools • Responsive Web Applications • Reusable UI Systems • Frontend Architecture & Refactoring 📌 Full Stack Product Development As a React Full Stack Developer and Full Stack Developer React Node.js, I work with growing teams to build and evolve SaaS products, MVPs, business applications. • SaaS Platforms • MVP Development • Feature Development • Product Modernization • Technical Discovery • End to End Implementation 📌 Backend Integrations As a Full Stack Developer React and Full Stack Developer React Node.js, I integrate backend services that support business workflows. • REST API • GraphQL • Authentication & Authorization • Payment Integrations • Third Party Services 📌 Product Growth As a Full Stack Developer React, I support products beyond launch through performance improvements, architecture enhancements, and ongoing development. 🔧 Technologies React • Next.js • TypeScript • JavaScript • Node.js • Redux • Tailwind CSS • REST API • • Supabase • Firebase • PostgreSQL • Docker • Stripe • AWS As a React Full Stack Developer and Full Stack Developer React Node.js, I build applications using clean architecture, reusable code patterns, and development practices designed to support long-term business growth. 💼 Selected Experience 🏥 Healthcare Platform Worked on healthcare applications focused on improving operational workflows and user experience. As a Front end Developer React, I developed responsive interfaces, integrated APIs, optimized user journeys, and delivered features supporting both medical staff and end users. 🚚 Cargo & Logistics Platform As a React Full Stack Developer and Full Stack Developer React Node.js, I built dashboards, shipment management interfaces, workflow solutions, and integrations supporting logistics operations and transportation processes. 👥 Recruitment & Hiring Platform As a Full Stack Developer React, I developed candidate management dashboards, search and filtering systems, workflow features, and integrations supporting recruitment and hiring processes. 📌 Additional Expertise As a Front end Developer React, I collaborate closely with founders, product managers, and stakeholders to transform business requirements into intuitive user experiences and scalable technical solutions. As a React Full Stack Developer I have experience working with existing codebases as well as building products from the ground up. My background as a Full Stack Developer React Node.js includes implementing secure authentication flows, integrating payment systems, optimizing application performance, and supporting products through multiple stages of growth. 📌 Industries Healthcare, logistics, recruitment, booking platforms, E-commerce As a Full Stack Developer React Node.js, I enjoy partnering with ambitious teams building products designed to scale. 💡 What Clients Value Clients value my ability to contribute as a Front end Developer React while understanding the broader product vision and delivering results as a Full Stack Developer React. If you need a Front end Developer React Node.js, let's connect.