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I help startups and growing businesses design, build, and scale 🚀 SaaS products, 🏪 marketplaces, 🛒 ecommerce platforms, 📱 mobile applications, and 💳 subscription-based businesses. With 10+ years of experience as a 💻 Full Stack Developer, 🏗️ Solution Architect, and 👨‍💼 Technical Lead, I deliver scalable products from MVP to production. My expertise covers SaaS development, marketplace platforms, subscription billing systems, payment infrastructure, API integrations, cloud-based applications, and business-critical payment flows. I don't just implement features — I help companies make technical decisions, define architecture, optimize billing processes, integrate payment systems, and launch products faster. ⚡ 🎯 Core Expertise ✅ Full Stack Development • ✅ SaaS Development • ✅ Marketplace Development • ✅ Ecommerce Development • ✅ Subscription Platforms • ✅ Subscription Billing • ✅ Payment Gateway Integration • ✅ Stripe Integration • ✅ PayPal Integration • ✅ Checkout Development • ✅ API Integration • ✅ Mobile App Development • ✅ React Development • ✅ Flutter Development • ✅ Firebase Development • ✅ Supabase Development • ✅ Technical Product Ownership • ✅ Solution Architecture 💳 Payment & Billing Expertise I specialize in building and optimizing payment systems for SaaS businesses, marketplaces, ecommerce stores, and mobile applications. 💰 Stripe Checkout • Stripe Elements • Stripe Payment Element • Stripe Billing • Stripe Subscriptions • Stripe Connect • Stripe Webhooks • Stripe Customer Portal • Stripe Payment Intents • Stripe Setup Intents • Stripe Invoicing • Stripe Tax • Stripe Payment Links • Stripe Radar • Stripe Identity • Stripe Connect Marketplace • Stripe Connect Payouts • Stripe Webhook Development • Stripe Webhook Troubleshooting • Stripe API Integration • Stripe Billing Automation • Stripe Subscription Management • Stripe Subscription Lifecycle Management • Stripe Checkout Optimization • Stripe Checkout Customization • Stripe Recurring Billing • Stripe SaaS Billing • Stripe Marketplace Payments • Stripe Vendor Payouts • Stripe Multi-Currency Payments • Stripe Upgrade & Downgrade Flows • Stripe Trial Management • Stripe Revenue Optimization • Stripe Fraud Prevention • Stripe Payment Security • Stripe Migration 💸 PayPal Integration • PayPal Checkout • PayPal API Integration • PayPal Subscriptions • PayPal Recurring Payments • PayPal Webhooks • PayPal Billing Agreements • PayPal Marketplace Payments 🔗 Payment Gateway Integration • Subscription Billing • Recurring Payments • Billing Automation • Customer Portal • Upgrade & Downgrade Flows • Trial Management • Multi-Currency Payments • Vendor Payouts • Marketplace Payments • Refund Automation • Payment Infrastructure 🚀 SaaS & Product Development I have extensive experience building SaaS platforms and subscription-based products. ☁️ SaaS MVP Development • SaaS Architecture • Multi-Tenant SaaS Applications • B2B SaaS Platforms • B2C SaaS Platforms • AI SaaS Products • SaaS Billing Systems • SaaS Payment Infrastructure • SaaS Subscription Management • SaaS Analytics & Reporting • SaaS Integrations • SaaS Scaling & Performance Optimization • SaaS Checkout Optimization • SaaS Revenue Optimization • Mobile SaaS Applications • SaaS Marketplace Platforms 🏪 Marketplace Expertise I help businesses build and scale marketplace platforms with automated payments and vendor management. 💳 Stripe Connect • Marketplace Payments • Vendor Payouts • Commission Systems • Multi-Vendor Platforms • Booking Platforms • Service Marketplaces • Product Marketplaces • Creator Platforms • Marketplace Billing Systems • Marketplace Checkout Flows • Marketplace Revenue Models 🧠 Technical Product Ownership I often work as a technical partner helping founders and business owners turn ideas into scalable products. 🏗️ Technical Product Ownership • Product Architecture Design • MVP Planning & Development • Startup Product Development • Technical Leadership • Solution Architecture • System Design • Product Roadmap Execution • Platform Scaling • Development Team Leadership • Business Requirements Analysis • Third-Party Integrations • Payment Infrastructure Design • SaaS Architecture Consulting 🛠️ Technologies Backend: PHP • Laravel • MySQL • Redis • Elasticsearch • Apache Solr Frontend: JavaScript • React • Vue.js Mobile: Flutter Backend as a Service: Firebase • Supabase Cloud & Infrastructure: AWS • S3 • CloudFront • Lambda • Docker 📈 Recent Project Experience 🚀 SaaS Billing & Subscription Platforms: Subscription Billing • Stripe Billing • Stripe Subscriptions • Checkout Optimization • Payment Gateway Integration • Recurring Billing • Subscription Lifecycle Management • Revenue Optimization 🏪 Marketplace Solutions: Stripe Connect • Marketplace Payments • Vendor Payouts • Commission Systems • Payment Infrastructure • Multi-Vendor Platforms 🛒 Ecommerce Platforms: Shopify Integrations • WooCommerce Integrations • Stripe Payments • PayPal Payments

I work on new Drupal 10/11 builds as much as legacy Drupal 7, whether that’s supporting and securing an old site after end of life or migrating it onto something modern. A growing part of my work is decoupled and headless: a Drupal or other CMS back end with a React or Next.js front end. The migration itself is the part I actually enjoy. Taking a site off an old version and rebuilding it fresh with the Migrate API, that’s the good part. I like complex logic, integrations with external services, and the fiddly Twig theming most people would rather avoid. I can’t stand digging through someone’s pile of workarounds to work out why a thing half-works. When I open an old site, that’s usually what’s waiting. Most of the time I’d rather rebuild the logic properly than keep patching around it, and I’ll tell you upfront when that’s the better call. Some of what I’ve built: a Drupal 7 to 9 migration of 1.5M+ entities for a news site, with no data lost. I handled the Microsoft Dynamics 365 integration on Walnut Creek Foods’ commerce site, and built the custom API and event calendar behind the March of Dimes platform. I also do long-term Drupal support and maintenance: module and security updates, payment and CRM integrations, performance work, and keeping legacy Drupal 7 sites patched and secure after end of life. I tend to stick around, too. Some clients have kept me on for years. Stack: PHP, Drupal 7 to 11, Symfony, React, Next.js, TypeScript, GraphQL, JSON:API, MySQL, Apache Solr. If you’ve got a Drupal project, new or legacy, message me with what’s going on and I’ll tell you whether I can help.

You will see the relevant (if needed technical) reply to your job, not my bio. Please view my proposals :) ✓ 𝗘𝘅𝗽𝗲𝗿𝘁-𝗩𝗲𝘁𝘁𝗲𝗱 𝗧𝗮𝗹𝗲𝗻𝘁 𝗦𝘁𝗮𝘁𝘂𝘀 (top 1% of Upwork) ✓ 18+ 𝗬𝗲𝗮𝗿𝘀 𝘄𝗶𝘁𝗵 𝗗𝗿𝘂𝗽𝗮𝗹 ✓ 𝗖𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗶𝗼𝗻𝘀 𝘁𝗼 𝗗𝗿𝘂𝗽𝗮𝗹 𝗰𝗼𝗿𝗲 Providing Drupal development services: ✓ Complex back- and front-end development ✓ Performance optimization ✓ Migration from older major Drupal versions (or non-Drupal) to up-to-date ones ✓ Audits and consultancies You see the big picture now. Invite me to your job if there is a fit! updated on May 08, 2026

⭐⭐⭐⭐⭐ 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

I’m a software engineer, architect, and Autodesk-Certified Revit Instructor specializing in custom software development for the AEC and Manufacturing industries- where BIM, CAD, CAM, and PDM intersect. As CEO of Consedge LLC, I lead a cross-disciplinary team delivering digital tools that optimize how buildings and products are designed, coordinated, and delivered. From automating Revit and BIM workflows to building intelligent toolkits for SolidWorks, Siemens NX, and Inventor, we’ve developed over 200 solutions that reduce manual effort, eliminate coordination issues, and accelerate engineering output. Core Expertise: ✔️ Revit plugin development (Revit API, C#, .NET) ✔️ CAD/CAM/CAE/PDM automation (SolidWorks, Siemens NX, Inventor) ✔️ BIM coordination, QA/QC, and workflow optimization ✔️ Autodesk Construction Cloud (ACC) & Forge integrations ✔️ Dynamo scripting & data-driven BIM tools ✔️ Web & desktop applications for AEC/MFG ( Asp . net Core, React, Electron) ✔️ System integration across BIM, CAD, and PDM platforms What I help with: ✔️ Revit Plugins & BIM Automation Automate repetitive Revit work like tagging, scheduling, clash detection, and documentation - so your team can focus on design, not cleanup. Built using Revit API (C# .NET), Dynamo, and Autodesk Platform Services (APS/Forge) when needed. ✔️ CAD/CAM & Manufacturing Integration Connect design and fabrication by automating workflows between tools like SolidWorks, Siemens NX, and Autodesk Inventor - reducing handoff time and eliminating manual re-entry errors. ✔️ AEC Software & Internal Tools We design and build custom web or desktop tools tailored to your workflows - from internal BIM dashboards to full platforms. (ASP.NET Core, React, Electron) ✔️ BIM Coordination & Architectural Support Revit modeling, BIM coordination, and clash detection with Navisworks - with buildable documentation and compliance considered from the start. Selected results: 💡Reduced coordination time by up to 60% for BIM teams 💡Built 200+ production-ready Revit plugins 💡Automated CAD → CAM workflows to remove manual data transfer 💡Delivered tools used by 10-50 person Revit teams in live projects Send me a quick description of the workflow that’s slowing your team down - I’ll tell you within 24 hours exactly how I’d approach fixing it.

⭐ Full-Stack Web Development • Backend & Frontend Solutions 📌 15+ years experience • Senior Developer • Acquia Certified Drupal Expert ✨ SOLID CODE BUILDS SCALABLE PRODUCTS. I help businesses design, build, and optimize fast, secure, and maintainable web applications — from robust back-end architectures to modern front-end experiences. 🎯 I specialize in FULL-STACK DEVELOPMENT, combining powerful back-end systems (PHP, Drupal, Symfony, Node.js) with modern front-end frameworks (React, Next.js, TypeScript). Whether you’re building from scratch, scaling an existing platform, or fixing performance bottlenecks, I focus on clean architecture, long-term maintainability, and real business results. ✅ 15+ YEARS of hands-on experience working with startups, agencies, and enterprises. Expect clear communication, reliable delivery, clean code, and solutions that don’t fall apart six months later. 🧩 Services 🔷 Back-End Development • PHP (Drupal 7–10, Symfony) • Node.js & Express.js • Custom APIs & integrations • Database design (MySQL) • Performance optimization & scalability • Multilingual & multisite architectures 🔷 Front-End Development • React.js & Next.js • TypeScript & modern JavaScript • Responsive UI development • HTML5, CSS3, SASS • Progressive enhancement & accessibility 🔷 Drupal Expertise • Custom module development • Performance & security optimization • Multilingual & multisite setups • Apache Solr integration • Bug fixing & legacy upgrades • Front-end theming & integration 🤝 Why Work With Me • Senior-level thinking — not just task execution • Clean, maintainable, well-documented code • Strong focus on performance, SEO, and scalability • Transparent communication & realistic timelines • Comfortable improving, refactoring, or rescuing existing projects 🛠 Tech Stack PHP • Drupal • Symfony • Node.js • Express.js • React • Next.js • TypeScript • JavaScript • AWS • MySQL • MongoDb • HTML5 • CSS3 • SASS • Git • Gulp • LAMP 🌍 Languages ✔️ English ✔️ French 📩 Let’s Talk Have an idea, an existing platform that needs improvement, or a performance problem to solve? Tell me about your project — I’ll help you find the right technical path forward. 🔎 Keyword Bank Full-Stack Developer, Backend Developer, Frontend Developer, PHP Developer, Senior Drupal Developer, Symfony Developer, Node.js Developer, Express.js, React Developer, Next.js Developer, TypeScript, JavaScript, Web Application Development, API Development, Performance Optimization, Scalable Architecture, Drupal Modules, Multilingual Websites, Multisite, SEO Optimization, MySQL, LAMP Stack, Headless CMS, Modern Web Development, Custom Web Solutions, Decoupled Drupal