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I build production-grade systems that handle real-world complexity - not prototypes that break under actual usage. I didn't start as a developer. I came up through IT operations at a healthcare organization, dealing with broken EHR integrations, sync failures, and workflows that crashed when clinicians needed them most. For several years, I was the person called when systems went down. That's when I started writing code - starting with scripts to automate my own troubleshooting, then building tools to fix recurring problems. Scripts became utilities. Utilities became systems. Eventually, I wasn't just keeping software running - I was building it. Over the last 10 years, I've worked on SaaS platforms, healthcare applications, e-commerce systems, and AI-powered automation. I've designed multi-tenant architectures serving thousands of users, built APIs processing millions of requests, and integrated AI into workflows that reduced manual operations by 70%+. My operations background gave me something most developers lack: understanding how business logic actually functions in production. I don't just ship features - I understand the workflows they enable, the edge cases that break them, and the business rules that define them. I focus on outcomes, not just technical implementation. What I Do - SaaS platforms: Multi-tenant architecture, subscription billing, role-based permissions, complex business rules, real-time sync, API integrations. - AI & automation: LLM integrations (GPT, Claude), RAG pipelines, document processing, workflow automation, AI agents handling real business logic. - Healthcare systems: EHR integrations (HL7, FHIR), HIPAA-compliant architecture, clinical workflows, patient data sync, billing logic, audit logging. - Business logic: Complex validation rules, multi-step workflows, conditional processing, data transformation pipelines, integration orchestration. I've built systems handling 10k+ documents monthly, processing thousands of daily transactions, and syncing data across dozens of third-party platforms without failure. Tech Stack - Backend: Node.js, Python, TypeScript, Express, NestJS, FastAPI, Django - Frontend: React, Next.js, Vue.js, TypeScript, Tailwind CSS - Database: PostgreSQL, MongoDB, Redis - Cloud: AWS (EC2, ECS, S3, Lambda, RDS), Azure, Docker - AI: OpenAI API, Claude API, LangChain, RAG - Healthcare: HL7 v2, FHIR R4, HIPAA compliance - APIs & Integration: REST, GraphQL, WebSockets, OAuth 2.0, Stripe - Infrastructure: CI/CD, RabbitMQ How I Work I communicate clearly and directly. I ask the right questions upfront to understand business logic and constraints. I document what I build. I test comprehensively before deployment. I think about failure scenarios and real-world usage - not just ideal conditions. I work remotely, manage my own timelines, and operate independently. I'm not the cheapest option. But I deliver clean, scalable systems that work in production, handle complex business logic correctly, and remain stable long-term.

I’m a Senior Full Stack Engineer with over seven years of experience designing and delivering high-quality, production-grade web applications, APIs, and background systems. My expertise spans modern full stack development with React, Next.js, Node.js, and Python (Django and Flask), Java (Spring Boot), focusing on AI-driven features, third-party API integrations, and scalable background processing. I also have mobile development experience, implementing various features on a Flutter app. I’ve led end-to-end development of complex systems integrating with OpenAI, Stripe, Twilio, Salesforce, and Google APIs to enable intelligent automation, real-time communication, and seamless cross-platform data synchronization. I also design and manage reliable background job systems using Celery, Redis Queue, BullMQ, and Sidekiq for high-throughput operations such as file processing, AI inference, notifications, and analytics pipelines. Core skills and technologies: - Frontend: React, Next.js, Vue.js, TypeScript, Tailwind, Redux - Backend: Node.js, Express, Python, Django, Flask, REST, GraphQL - AI Integrations: OpenAI, LangChain, Hugging Face, custom NLP and ML services - APIs and Automation: Stripe, Twilio, Google APIs, CRM tools, Zapier - Background Jobs: Celery, BullMQ, Redis Queue, Sidekiq, RabbitMQ - Databases: PostgreSQL, MySQL, MongoDB, Redis - Cloud and DevOps: AWS (EC2, Lambda, S3, RDS), Docker, GitHub Actions, Vercel - Best Practices: Scalable architecture, clean code, test-driven development, Agile workflows Beyond technical ability, I bring product awareness, leadership, and a proactive mindset. If you’re looking for someone who can balance architecture vision with hands-on execution, I’d be glad to connect.

**Need to connect an LLM to your real tools - email, databases, APIs, internal systems - and have it work reliably in production? That's what I build.** I've shipped my own MCP (Model Context Protocol) server that gives Claude live access to 9 functional domains - email, git, filesystem, calendars, contacts, scheduling - and I run it in production every day. I've also built a full AI content pipeline of Claude Code agents that publish directly to a live CMS. Behind that is nearly 30 years as a software architect and full-stack engineer - and I still write code every day. So your AI integration sits on a backend that won't fall over. My professional background: 18 years as Technology Architect at Old Republic Home Protection, where I designed and built two enterprise platforms from greenfield. One was a microservices SOA system (Java/Spring Boot, Angular, RabbitMQ, SQL Server). The other was a cloud-first Azure platform (Docker, Azure Service Bus, Cosmos DB). I led a development team, ran CI/CD, introduced Security-by-Design and TDD, and was the person they called when projects went sideways. Before that: Senior Application Architect at MultiPlan in New York, building healthcare claims systems at scale (700+ users, 1.2M+ provider records). Since 2024, I've been building and running my own software products - several are live and in production: - Itty - A branded link-shortening SaaS with custom domains, click analytics, multi-user management, and Stripe billing. Built on Java 21 / Spring Boot 4 / Angular 21. - Klass Paperless - A digital template store for reMarkable tablets. Includes a headless-browser PDF generation pipeline, Stripe checkout, AWS S3 storage, and an Angular storefront. - Klass Video - A 4K AI video restoration and upscaling service. - Klass Wiki - A technical reference and blog I publish covering Spring Boot, SQL Server, Angular, Linux, and AI development. - Klass CMS - A multi-tenant CMS platform serving 8+ distinct websites from a single Spring Boot deployment. Configuration-driven interceptor pipeline chains honeypots, AI spam-detection, landing-page tracking, S3 presigned redirects, Stripe checkout, and mailing-list signups. Built on Java 21 / Spring Boot 3.5 / Spring AI / Angular 21. - Klass CRM - A native CRM and personal productivity app built with SwiftUI and SwiftData for macOS 15+ and iOS 18+. Full end-to-end encryption (Argon2id + AES-256-GCM), CloudKit sync, Markdown I/O, and a modular architecture across CRM, Finance, Planner, Notes, and Templates modules. I also built my own AI agent infrastructure: a Spring AI MCP server that integrates email (IMAP/SMTP), git, CardDAV contacts, CalDAV scheduling, and filesystem operations for Claude-based automation. On top of that I built an AI content marketing pipeline - custom Claude Code agents that generate weekly LinkedIn posts, blog articles, and social content from a single subject prompt, enforcing brand voice and publishing directly to the CMS. **What I work in:** - Backend: Java, Spring Boot (through v4), Grails/Groovy, REST APIs, microservices, Spring Security, JWT, OAuth 2.0 - Frontend: Angular (v17-21), TypeScript, React, Next.js - Native desktop/mobile: Swift, SwiftUI, SwiftData (macOS/iOS); JavaFX; Tauri 2 (Angular + Rust cross-platform desktop) - Databases: SQL Server, SQLite, MySQL, Oracle (PL/SQL), Azure Cosmos DB, MongoDB - Cloud: Azure (VMs, Spring Cloud, Service Bus, Containers, Cosmos DB, Blob Storage), AWS S3, CloudKit, Backblaze B2, Cloudflare R2 - AI/LLM: Spring AI, Anthropic Claude API, Azure OpenAI (including Assistants API), MCP server implementation, Claude Code agent pipelines - Integrations: Stripe, SendGrid, Okta/SAML, Telegram Bot API, Etsy, IVR/phone APIs, EDI - Tools: Docker, Azure Pipelines, Gradle, Quartz Scheduler, Selenium/WebDriverManager, JUnit 5, XCTest I work across the full stack and adapt to what the project needs. I work independently without hand-holding, communicate clearly with non-technical stakeholders, and deliver. If you need an MCP server built, an LLM wired into your existing systems, or a senior engineer to take a stalled project and just ship it, I'd be glad to talk.

I specialize in building and optimizing high-performance web applications with a strong focus on backend architecture and modern frontend development. My work is centered around delivering reliable, scalable solutions that handle real-world business needs. With solid experience across Java, PHP, Python, and JavaScript ecosystems, I develop robust APIs, microservices, and full-stack applications. On the frontend, I build fast and responsive interfaces using React and Next.js, ensuring smooth user experiences and maintainable codebases. ✅ What I can do for you: - Develop scalable backend systems (Java Spring, Laravel, Django, FastAPI) - Build modern web apps with React / Next.js - Design and integrate REST & GraphQL APIs - Optimize databases (PostgreSQL, MySQL, MongoDB) - Implement real-time features (WebSockets) - Integrate third-party services (payments, AI, analytics) - Improve performance, scalability, and security 💼 If you need a reliable developer who can handle both backend complexity and frontend delivery let’s connect. 🔑 KEYWORDS: Full Stack Developer, Backend Developer, Java Developer, Spring Boot, PHP Developer, Laravel Developer, Python Developer, Django, FastAPI, Node.js, NestJS, React Developer, Next.js Developer, TypeScript, JavaScript, REST API, GraphQL, Microservices, WebSockets, PostgreSQL, MySQL, MongoDB, Redis, Kafka, RabbitMQ, Docker, AWS, CI/CD, API Integration, Performance Optimization, Scalable Systems, SaaS Development

I am an Expert MERN Full Stack Developer and Technical Lead with 10+ years of experience designing, developing, and delivering secure, scalable, and high-performance enterprise applications. My expertise includes React, Next.js, Node.js, Java, Spring Boot, Microservices, REST APIs, AWS, Kubernetes, Kafka, and AI-powered application development. I help businesses build modern web applications, backend services, cloud-native platforms, and enterprise-grade systems that are reliable, scalable, and easy to maintain. I have strong experience in both frontend and backend development, with a focus on clean architecture, performance, security, and production-ready delivery. My technical expertise includes: Frontend: React, Next.js, JavaScript, TypeScript, HTML, CSS Backend: Java, Spring Boot, Spring MVC, Spring Security, Node.js, REST APIs, GraphQL, gRPC, SOAP Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, GitHub Actions, Terraform, CI/CD Databases & Messaging: Oracle, PostgreSQL, MySQL, SQL Server, MongoDB, Redis, Kafka, RabbitMQ, ActiveMQ AI & Modern Apps: AI integration, API-based AI solutions, cloud-based intelligent applications Testing & Quality: JUnit, Mockito, API testing, performance tuning, logging, monitoring, code review In my recent technical leadership role, I architected cloud-based and serverless platforms using AWS, Spring Boot, Kafka, and Kubernetes, helping improve loan processing speed by 35%, reduce infrastructure costs by 30%, and improve approval accuracy by 15%. I have also designed secure systems for managing sensitive customer data, implemented CI/CD automation, mentored developers, and delivered enterprise solutions in highly regulated environments. I can help you with: Backend and full stack application development React / Next.js web application development Node.js API development Java Spring Boot microservices REST API and GraphQL API development AWS cloud-native application development AI feature integration into existing applications Kafka / RabbitMQ / ActiveMQ integration Database design and query optimization Legacy system modernization CI/CD setup and deployment automation Performance tuning and troubleshooting Technical architecture and code review I believe in delivering clean, maintainable, secure, and production-ready solutions with proper documentation, testing, logging, and best engineering practices. Let’s connect if you need a reliable full stack developer who can design, build, troubleshoot, and deliver modern Java, React, Node.js, AI, and cloud-based applications.

Senior WordPress Developer. Reliable and responsive. Result-oriented work. On time. "Top Rated Plus" Upwork premium freelancer, member of an Upwork PRO group. 14+ years skill in full-stack web site development (prototype, graphic design, front-end, back-end, SEO). Back end experience: PHP (WordPress, Laravel), C# (ASP .NET MVC, Web API, Entity Framework, Orchard, Kooboo, Umbraco). Front end experience: HTML5 / CSS3, SASS, LESS, Bootstrap 5, Html5 animation, JS, jQuery, AJAX, Json, Rest API, Angular 1-2-4, React.js, Vue.js, Node.js, Three.js. Other experience: Windows/Unix Server administration, Git, Azure, AWS and cloud solutions. In terms of WordPress can provide: ✔️ custom theme design or theme/template modification; ✔️ responsive HTML (will pass Google mobile-friendly test, work on any device and OS); ✔️ retina display support; ✔️ HTML5 animation if needed; ✔️ WordPress/Woo back end; ✔️ WordPress multisite and membership, BuddyPress, bbPress; ✔️ custom plugin development; ✔️ 3rd-party services and payment systems API integration; ✔️ SEO, make AMP compliant, setup CDN (Cloudflare); ✔️ support; ✔️ warranty. Great experience with: ✔️ e-commerce; ✔️ payment systems integration (PP, Stripe, Authorize.net and similar); ✔️ Google Maps API (custom design, clusters, routing, radius, speed/time/distances calculation, etc.); ✔️ responsive CRM and dashboards, high-traffic web-projects; ✔️ experience with Microsoft Power BI. Keep the warranty, always available, fast response and turnaround. === TAGS === WordPress Developer ; WordPress expert ; Fullstack developer.