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⭐⭐⭐⭐⭐ Top Rated Plus on Upwork 100% Job Success Score I'm a Java developer with 8+ years delivering production-grade systems from serverless AWS architectures to distributed microservices serving healthcare and fintech clients. 𝗪𝗵𝗮𝘁 𝗜'𝘃𝗲 𝗕𝘂𝗶𝗹𝘁 ➡ As lead Java developer at my current company, managed a team of 8 engineers over 7 years — delivering 4 production systems across healthcare, fintech, and AI verticals. ➡ Designed serverless AWS infrastructure for a US longevity and healthcare platform as an AWS developer — Lambda, AppSync, DynamoDB, Cognito, SNS/SQS, Stripe, HubSpot currently in production. ➡ Led migration from monolithic Spring apps to distributed microservices — reducing deployment complexity and enabling independent scaling per service. ➡ Built a PDF/UA accessibility compliance platform as backend developer using Java 21, iText 7, PDFBox, veraPDF processing and remediating documents of hundreds of pages against international accessibility standards. ➡ Delivered an AI-powered workflow automation platform as an AI developer integrating Spring AI, Azure cloud, and automated Stripe subscription workflows. ➡ Shipped a medical practitioner dashboard integrating 3rd-party hardware APIs and clinical toolkits as backend developer and tech lead serving real patients and practitioners in production. Core experience as a Java developer and Backend developer As a Java developer with 8+ years in production systems, my core is Java 8 through Java 21 with the full Spring ecosystem Boot, Cloud, Security, WebFlux, Batch, and Spring AI for AI-integrated backends. I work across both relational (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB, Redis) databases, selecting the right store based on access patterns not habit. As a backend developer I've optimised slow MongoDB queries to cut response times, redesigned DynamoDB access patterns for a high-throughput healthcare API, and built Redis caching layers that kept latency flat under load. As an AWS developer, my hands-on stack covers Lambda, AppSync, DynamoDB, Cognito, SQS, SNS, SES, S3, API Gateway, Route 53, and CloudFormation built and maintained in a live US healthcare platform. I design serverless pipelines end-to-end, not just deploy to them. For async workloads I wire event-driven systems using Kafka, RabbitMQ, or AWS SNS/SQS depending on durability and throughput requirements. On the container side: Docker, Kubernetes, Helm, OpenShift, Terraform, and Jenkins full IaC from infrastructure definition to CI/CD pipeline. As an AI developer, I've shipped Spring AI integrations for workflow automation backends, built document intelligence services capable of processing and remediating hundreds-of-pages PDFs against accessibility standards, and connected GraphQL APIs via AWS AppSync for mobile and web AI-driven applications. I also have production experience integrating medical hardware APIs, Stripe subscription billing, and HubSpot CRM sync into Java backends the kind of third-party integration work every backend developer eventually owns in a real product. AWS Developer & 𝗖𝗹𝗼𝘂𝗱 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 ✅ Currently operating as AWS developer on a live healthcare platform Lambda, AppSync, DynamoDB, Cognito, SQS/SNS/SES, S3, API Gateway, Route 53, CloudFormation ✅ Experience as AWS developer across serverless, containerized (ECS/K8s), and IaC (Terraform, CloudFormation) environments ✅ Also experienced across Azure (AKS, Azure DevOps) and GCP as multi-cloud backend developer ✅ Kubernetes, Helm, Docker, OpenShift, Jenkins, Terraform the full DevOps chain every AWS developer deploys through AI developer 𝗖𝗮𝗽𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 ✅ Delivered AI-powered backend services as AI developer using Spring AI automated content generation and workflow orchestration at scale ✅ AWS AppSync + DynamoDB + Cognito pipeline for a live healthcare platform: the architecture an AI developer builds when latency and data integrity are non-negotiable ✅ Experienced AI developer integrating third-party AI tooling with enterprise Java backends designing event-driven pipelines that handle async AI workloads via Kafka and SQS ✅ As AI developer, built document intelligence features automated PDF tagging, structure remediation, and accessibility validation across large document corpora 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 Healthcare · Fintech · SaaS · E-commerce · Logistics · Telecom · IoT · Blockchain · Automotive · Media 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗥𝗼𝗹𝗲𝘀 ✔ Senior Java Developer · Java Spring Boot Developer · Java Backend Developer ✔ AWS Cloud Engineer · AWS DevOps Engineer ✔ Azure Cloud Engineer · Google Cloud Engineer ✔ AI Backend Developer · Full-Stack Developer (Spring Boot + React) ✔ AI Backend Developer · Full-Stack Developer (Spring Boot + React) Need a Java developer, backend developer, AWS developer, or AI developer who ships production systems — not prototypes? Drop me a message. 04/06/2026

For over 10 years, we’ve been helping startups, SaaS companies, and enterprise organizations turn ideas into scalable digital products. As a Full Stack Developer and Web Developer team with deep expertise in modern web technologies, we design, build, and maintain applications that combine outstanding user experience with reliable backend architecture. Whether you’re looking for a React expert, an experienced Web Developer, or a Software Developer capable of delivering an end-to-end solution, we focus on building products that generate measurable business value. Our Full Stack Developer team has successfully delivered 200+ software projects, tracked 20,000+ hours on Upwork, grown to 40+ engineers, generated $1M+ in revenue, and built an engineering culture where the average developer has 5+ years of commercial experience. We've been working for more than 10 years as a team. These numbers represent more than experience—they reflect a proven ability to deliver reliable software on time while supporting long-term product growth, covering the full development cycle as a full stack developers team As a Full Stack Developer partner, we work across the entire software development lifecycle. From product discovery and architecture to UI implementation, backend development, cloud deployment, API integration, testing, optimization, and continuous support, we help businesses transform concepts into production-ready web applications. Our experience covers SaaS platforms, healthcare, fintech, logistics, marketplaces, education, CRM systems, internal business tools, AI-powered applications, and enterprise software. Our primary frontend expertise is built around React, allowing us to create fast, scalable, and maintainable web applications with excellent user experiences. We also work with Vue and Angular, selecting the right framework based on project requirements rather than forcing a single technology. Every Frontend React Developer on our team follows modern engineering practices that prioritize performance, maintainability, responsiveness, and long-term scalability. On the backend, our AI Full Stack Developer team builds secure and scalable architectures using Node.js, PHP, Python, Laravel, MySQL, REST APIs, cloud services, and modern authentication systems. We integrate third-party services, payment gateways, business platforms, analytics, and enterprise APIs while ensuring software remains reliable as products and user bases continue to grow. As an experienced AI Full Stack Web Developer team, we create custom web platforms, SaaS products, dashboards, portals, marketplaces, and internal business systems tailored to each client’s goals. We also provide web design support, helping companies improve usability, responsive interfaces, user journeys, and overall product experience. Our engineers collaborate closely with designers, business stakeholders, and product managers to ensure technical implementation supports business objectives. Our experience also includes WordPress development for businesses requiring flexible content management systems, custom plugins, API integrations, WooCommerce solutions, and performance optimization. Every Full Stack or WordPress Developer focuses on creating secure, maintainable websites that support long-term business growth while remaining easy to manage. Many modern AI Full Stack products extend beyond traditional websites. Our Full Stack Software Developer team builds scalable platforms that connect web applications with mobile products, enterprise systems, and AI-powered services. We regularly collaborate with Mobile App Developer teams to create unified ecosystems where web platforms and mobile applications operate seamlessly together. Every Full Stack Software Developer on our team follows engineering best practices including clean architecture, automated testing, performance optimization, security, CI/CD, monitoring, and long-term maintainability. We believe successful software is not simply delivered—it continues evolving as businesses grow. Whether you need a Full Stack React Developer for an existing application, a Front End Developer to modernize your interface, a Full Stack Developer to build an entire SaaS platform, an App Developer to expand your digital ecosystem, a Graphic Designer to improve the visual experience, or an experienced Web Developer to lead a complete project, or Software Developer, our goal is always the same: deliver reliable software that solves real business problems and supports sustainable growth.

🚀 Senior .NET Developer | Acumatica ERP | React | Azure | AI Solutions I help businesses build, modernize, and scale enterprise applications, ERP systems, CRM platforms, SaaS products, and cloud solutions. With 11+ years of commercial software development experience, I have successfully delivered enterprise-grade applications from concept and architecture through deployment and long-term support. My expertise includes backend, frontend, cloud infrastructure, ERP customization, Microsoft 365 integrations, and AI-powered business solutions. Core Technologies ✔ C# ✔ .NET Framework ✔ .NET Core ✔ .NET 8 ✔ ASP.NET MVC ✔ ASP.NET Core ✔ REST API Development ✔ Entity Framework ✔ Entity Framework Core ✔ SQL Server ✔ Azure ✔ Azure DevOps ✔ Docker ✔ Microservices Frontend Development ✔ React ✔ TypeScript ✔ JavaScript ✔ DevExpress ✔ Infragistics ✔ HTML5 ✔ CSS3 ✔ Responsive UI Development Desktop Development ✔ WinForms ✔ WPF ✔ Enterprise Desktop Applications ✔ Legacy Application Modernization Acumatica ERP Expertise ✔ Acumatica ERP Customization ✔ Workflow Automation ✔ Business Events ✔ Generic Inquiries ✔ Custom DAC Development ✔ ERP Integrations ✔ Business Process Optimization Microsoft 365 & Office Development ✔ Excel Add-ins ✔ Outlook Add-ins ✔ Word Add-ins ✔ Office JavaScript API ✔ Microsoft Graph API ✔ Office 365 Integrations AI & Modern Development ✔ OpenAI API ✔ ChatGPT Integrations ✔ Claude AI ✔ GitHub Copilot ✔ OpenAI Codex ✔ Cursor AI ✔ AI Workflow Automation ✔ AI-powered Business Applications ✔ Document Processing Solutions Recent Project Experience • Enterprise CRM Systems • Acumatica ERP Customization • SaaS Platforms • Enterprise Dashboards • Legacy System Modernization • Cloud Migration Projects • Office 365 Add-ins • AI-powered Business Solutions • Database Optimization Projects • Enterprise Workflow Automation Why clients work with me: ✅ Clean and maintainable code ✅ Strong architecture and design skills ✅ Fast problem solving ✅ Excellent communication ✅ Reliable delivery ✅ Full project ownership ✅ Long-term partnership mindset Whether you need ERP customization, a modern SaaS platform, enterprise software development, AI integration, Office Add-ins, cloud migration, or modernization of an existing system, I can help deliver reliable and scalable solutions that create real business value.

Many products fail not because of bad execution, but because the underlying system was never clearly defined. I work at the stage where ideas must become living, structured systems. With 20+ years in software development, I design business and product systems that can actually function, scale, and hold real operational load. 💡 What I do Having grown from a software developer to a System Architect and Product Manager, I naturally see what others often miss: the gap between a "cool idea" and a working business process. I turn vague visions, disconnected workflows, and implicit assumptions into: ✔ clear system structures ✔ defined business logic ✔ executable product architecture This is not just an analysis.
 This is the system definition. 🚀 Where I create the most value ✔ When a startup idea needs structured validation ✔ When a product concept exists, but cannot yet be built reliably ✔ When workflows between operations, product, and finance don’t align ✔ When development is at risk of building on unvalidated assumptions ✔ When the system needs to handle real-world complexity, not just a “happy path” 🔍 My approach I start by reconstructing the real operating model behind the idea. Then I define: ✔ what events must exist in the system ✔ how data flows between them ✔ how business logic translates into system behavior ✔ where inconsistencies or risks will break the system The goal is not documentation. The goal is a system that can be implemented without collapsing under real-world conditions. 📊 Typical outcome ✔ A clear system architecture (not just descriptions) ✔ Defined business logic and workflows ✔ Eliminated ambiguity for development ✔ Identified structural risks before they become expensive mistakes ✔ A system definition that can be directly implemented 🎯 Core expertise ✔ Product & System Architecture ✔ ERP / CRM / Operational Systems ✔ Multi-sided Platforms ✔ Business Process Design ✔ Data-driven Systems (SQL-based environments) 💼 Selected projects 1. Enterprise Systems:
 ✔ Trade warehouse management systems (multiple enterprise implementations).
 ✔ Healthcare management software (health resort management).
 ✔ Blood transfusion station management system. 2. Startup / Platform ✔ Multi-sided wedding & event planning platform connecting couples, venues, vendors, and travel agencies. 3. Mobile Product ✔ Feature development for a wellness mobile app (Challenges, Statistics module). ⭐ What makes me different I don’t just analyze ideas. I define the structure that allows them to work in reality. 🌿 Professional values: - Respectful and collaborative communication - Stress-Free Environment

I help SaaS and product companies modernize aging .NET applications — migrating legacy .NET Framework systems to .NET Core, rewriting outdated frontends with Angular, and fixing the bugs that have been piling up along the way — so your product stays secure, supported, and compliant instead of running on frameworks Microsoft no longer patches. I also build new features into existing .NET products and ship new web applications from scratch. If your app was built on .NET Framework 4.x or WebForms, you already know the problem: every month it gets harder to hire for, harder to patch, and harder to pass a security review. Customers ask about compliance. Auditors flag unsupported dependencies. Meanwhile, the team is afraid to touch the codebase because nobody's sure what will break. That's the work I do. A top-performing full-stack developer with 20+ years in Microsoft technologies, I own the full project lifecycle — analysis, design, development, deployment, maintenance — whether that means modernizing a legacy system, extending one that's working, or building something new from a blank repo. Pragmatic programming principles throughout: fast, secure, scalable software shipped without freezing new features for months. Recent wins: - Replaced a legacy e-commerce platform (.NET Framework 4.x / WebForms with DevExpress controls) with a ground-up ASP.NET Core rebuild — roughly 90% new code on both backend and frontend. Built a fast, responsive Angular UI (desktop + mobile), integrated Google Sign-In, Google Shopping product export, and ERP integration (product catalog pulled from the ERP, new orders pushed back). Also built an AI-powered tool that helps salespeople process purchase orders received by email/IM by matching free-form product requests against the catalog. - Modernized a legacy SaaS product built on .NET Framework — migrated vanilla JS to TypeScript with Webpack bundling, rewrote major jQuery components as Angular Elements, and built a new data-calculation module from scratch in Angular, integrated cleanly into the existing legacy site. - Remediated dozens of security vulnerabilities in a .NET Framework 4.x / WebForms application flagged by an independent security audit — minimal, surgical changes only, with zero regressions introduced. What I typically deliver: - Migration of ASP.NET Framework 4.x WebForms apps to ASP.NET Core - New features and modules built into existing .NET applications - New web applications and SaaS products built from scratch (ASP.NET Core + Angular) - Frontend rewrites from legacy JS / AngularJS / jQuery to modern Angular + TypeScript - Upgrades of outdated Angular apps (Angular 2–20) to the current Angular version - Bug fixes and stabilization of inherited .NET codebases - Integrations with HubSpot, Salesforce, Dynamics CRM, Microsoft Graph, Google Shopping / Merchant Center, AWS / Azure Core stack: C#, .NET Core, .NET Framework, Entity Framework, ADO.NET, ASP.NET MVC / Web API / WebForms, MS SQL, MySQL, Angular, TypeScript, HTML/CSS, Azure, AWS, Xamarin. If you're working on a .NET product — legacy or greenfield — send me the details. I'll tell you honestly what the work is and what it would take.

✅ 20+ years of enterprise engineering expertise ✅ 100% Traceability & 0% Double-Allocation Inventory Ecosystems Manual tracking, spreadsheet discrepancies, and fragmented multi-channel orders drain up to 30–40% of operational efficiency, creating massive supply chain bottlenecks. We help mid-market manufacturers, B2B wholesale distributors, and global e-commerce brands eliminate siloed workflows by architecting unified digital operating systems. Specializing in high-impact operations automation, we design and build bespoke, multi-tenant cloud SaaS platforms, advanced Warehouse Management Systems (WMS), and robust Enterprise Resource Planning (ERP) tools that safely handle heavy operational scale without adding headcount. ⚙️ What We Do Best & Our Impact Metrics: Custom ERP & WMS Platform Development: Engineering complete multi-role web architectures and secure mobile apps from scratch. Result: Replaced systems like Floorzap and legacy tools to drive 10x higher processing throughput for operations teams. Multi-Channel & Multi-Tenant Integrations: Developing deep, automated sync pipelines between core databases and external environments. Result: Seamlessly managed over 400+ active SKUs via real-time Shopify Plus, Amazon SP-API, Faire, and QuickBooks Online financial networks. Advanced Inventory Tracking & FEFO/FIFO Logic: Implementing granular lot tracking, expiration monitoring, serial numbers, and physical bin/shelf location mapping. Result: Reduced manual data capture errors by 45% and established total stock compliance in regulated spaces. Automated Fulfillment & Shipping Workflows: Custom engineering sequential label printing, weight scale/dimensioner data capture, and AI exception-tracking. Result: Automated real-time CSV extraction directly to warehouse APIs, reducing administrative overhead by ~50%. Hardware & Scan Integration Engine: Building native and hybrid mobile applications (React Native) utilizing DataWedge APIs for rugged Zebra PDA devices and real-time UPC barcode workflows. Result: Boosted on-the-floor sorting and dispatch validation speeds by 150%. 🔄 Our Proven Operational Process: Scope Discovery & Architecture Mapping: We analyze your existing workflows (including reviewing complex 20+ page specification documents, legacy DB architectures, and internal spreadsheets) to build an ironclad technical roadmap detailing milestones, data entity diagrams, and risk assessments. Custom Execution & Clean Engineering: Building on top of secure, high-performance tech stacks (Next.js, Node.js, Supabase, PostgreSQL). We build scalable database schemas featuring Row-Level Security (RLS) for complete multi-tenant data isolation and continuous server health logging. Deployment, QA & Infrastructure Scale: We ship code iteratively using strict GitHub PR reviews and automated Docker CI/CD pipelines to AWS, Vercel, or custom cloud servers, completing full functional validation inside sandboxed testing loops before turning systems live. 🛠️ Domain & Technology Expertise (Proven Results): Platform & Architecture: Custom ERP, Multi-Tenant WMS SaaS, B2B Work Order Engines, Client Portals against Floor Plans. Automations & Workflows: n8n, Zapier, Webhooks, Multi-Carrier API Integrations (ShipStation, UPS, FedEx, USPS), OpenClaw AI frameworks. Data & Logistics Core: PostgreSQL, Supabase RLS, Secure OAuth/M365 Integrations, Automated PDF Quotation Engines. Frontend & Native Mobile: Next.js 14 (App Router), React, Tailwind CSS, Shadcn/ui, React Native (iOS & Android). Whether you need to scale your operations to thousands of monthly movements, replace a legacy system without disrupting live trade, or deploy a commercial WMS SaaS platform to market, we turn messy logistics into clean code.