Hire the Best Web Application Developers
in the United States

❓❓❓ Need AI integration that won't collapse under HIPAA, an audit, or Monday-morning traffic? Let's start with an audit of your existing setup. Ready to start today! 🛠️ 20+ years of engineering compliance-grade systems across healthcare, finance, and life sciences for companies like McKesson, AstraZeneca, Boeing, and Comcast. Key numbers: 20+ years delivering enterprise software as a Full Stack Developer across healthcare and SaaS. 50+ AI integration projects completed as a Python AI Developer, including secure AI API integration for HIPAA-regulated healthcare platforms in role of Full stack developer. 10+ enterprise companies including McKesson, AstraZeneca, Boeing, and Comcast supported as an AI Developer, ai backend developer, and AI integration expert. 50+ successful AI integrations delivered that have passed enterprise compliance audits. 50+ compliant production platforms launched through production-focused AI development, Python AI Developer expertise, and scalable AI SaaS development. 6+ core payer workflows including prior authorization, utilization management, claims processing, denials management, risk adjustment, and care management delivered through enterprise AI integration. 30+ healthcare and medical platforms delivered with HIPAA compliance, CMS requirements, and secure AI API integration align AI capabilities with regulated healthcare systems connecting payers, providers, and clinical data. 10+ pharma and clinical technology companies supported where AI powers clinical trials, pharmacovigilance, regulatory workflows, medical documentation, and real-world evidence platforms. 20+ years building complete AI-powered platforms as a AI Solution Architect, delivering backend systems, APIs, automation workflows, and scalable applications instead of isolated AI features. 10+ AI enterprise healthcare solutions connected with McKesson Health Solutions, AstraZeneca, Boeing, and Comcast as a AI Solution Architect and Python AI Developer. 50+ production AI solutions designed and deployed through enterprise AI development, delivering secure, scalable, and audit-ready systems across healthcare and regulated SaaS environments. Whether you need an AI Developer, AI Solution Architect, ai backend developer, or expertise in AI API integration or ai integration specialist , I can help guide the next steps. 🏆Technical Focus My work as an AI Developer includes AI integration projects, AI architecture improvements, automation systems, and intelligent workflows. I help teams move from ideas to production through practical AI implementation. As a Python Full Stack Developer, I create backend systems, APIs, web applications, and scalable platforms. I work with flask and django solutions when businesses need reliable AI Solution Architect service. My experience as an AI developer includes natural language processing applications, AI-powered automation, and machine learning projects. I build ai integration strategies, ai integration specialist solutions, and ai integration workflows that connect technology with business goals. I support organizations with web developer, web application developer, and Ai backend developer expertise for modern SaaS products. My focus includes app developer with ai, ai saas development, ai development, and ai machine learning solutions. 🤖 AI Developer - AI Solution Architect / PM and CEO of - Kombocode Founder & CEO of Kombocode, I help companies build production-ready AI products, SaaS platforms, healthcare systems, and enterprise applications. As an AI Consultant, I work with technology teams that need AI strategy, api integration, and practical implementation. I help businesses create AI solutions that solve real challenges. My work with a Python Full Stack Developer includes building scalable applications, backend platforms, APIs, and intelligent software products. I support companies looking for a AI Solution Architect who understands both product development and AI engineering. I deliver AI API integration projects that connect AI models, software platforms, and business workflows. My experience includes AI integration and api integrations for companies modernizing their technology ecosystems. As an AI developer, I helped implement generative AI applications, automation workflows, and natural language processing capabilities for 10 enterprise companies. Kombocode service includes python full stack developer flask solutions and python full stack developer django. I work as a ai backend developer helping companies create AI-powered systems and intelligent automation. My expertise includes ai api solutions and AI development. I build solutions as a full stack and backend developer and ai backend developer and ai integration specialist, creating secure platforms, APIs, dashboards, and scalable AI solutions. I support web developer initiatives focused on SaaS applications and digital transformation. 2/09/2026

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | 𝟭𝟯+ 𝗬𝗲𝗮𝗿𝘀 | 𝟴,𝟬𝟬𝟬+ 𝗨𝗽𝘄𝗼𝗿𝗸 𝗛𝗼𝘂𝗿𝘀 | $𝟮𝟬𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 | I'm a senior .NET / C# developer and Azure cloud architect who builds and scales production systems for companies that can't afford downtime or rework — healthcare platforms, fintech products, e-commerce systems, and real estate/property-management software. If your project needs more than someone who writes code to spec — if you need someone who can architect the solution, own the delivery, and still be there for support six months later — that's the role I take on. WHAT I BUILD ──────────────────────── ✦ SaaS Platforms — multi-tenant, subscription-based .NET Core / Azure applications built to scale from a handful of users to enterprise volume ✦ Healthcare Systems — HIPAA-aware EHR/EMR platforms, HL7/FHIR integrations, and clinical workflow tools built to compliance standards ✦ Fintech & Payments — secure transaction processing, Stripe/PayPal integrations, reporting and reconciliation systems, PCI-conscious architecture ✦ E-Commerce Platforms — custom storefronts, order/inventory management, and integrations with payment gateways, CRMs, and ERPs ✦ Real Estate & Property Management Systems — listing platforms, tenant/lease management tools, and workflow automation for property teams ✦ AI-Powered Features — OpenAI/LLM integrations, intelligent document processing, and AI-assisted workflows added to existing .NET applications ✦ Legacy Modernization — turning outdated ASP.NET/VB.NET systems into maintainable, cloud-ready .NET 8 platforms without breaking what already works TECH STACK ──────────────────────── + Backend: C# · .NET 8 / .NET Core · ASP.NET Core · ASP.NET MVC · Web API · Entity Framework Core · LINQ · Blazor · SignalR · Microservices · REST & SOAP APIs + Frontend: Angular · React · TypeScript · JavaScript · HTML5 · CSS3 · Blazor UI + Cloud & DevOps: Microsoft Azure (App Services, Functions, AKS, Service Bus, Key Vault, Azure SQL) · AWS (EC2, Lambda, RDS, S3) · Azure DevOps · GitHub Actions · CI/CD · Docker · Kubernetes · Infrastructure as Code + Databases: SQL Server · PostgreSQL · Cosmos DB · MongoDB · Stored Procedures & Query Optimization for high-volume systems + Integrations: Stripe · PayPal · Twilio · SendGrid · OAuth 2.0 · HL7 · FHIR · CRM/ERP integrations HOW I WORK ──────────────────────── I stay involved from architecture through deployment — writing clean, documented, production-ready code, and communicating progress clearly at every step. I manage scope, timelines, and stakeholder expectations as carefully as I manage the codebase itself. Depending on what your project needs, I can work as a hands-on senior engineer, a solution architect, or a long-term technical lead. I'll tell you honestly, early, if I'm the right fit for what you're building. Send me your project scope and I'll respond within a few hours.

Web application developer with 8 years of experience building web applications. Certified Caspio developer with 5 years of experience building small to complex web application using the Caspio platform. Have experience with the following: -HTML, CSS, PHP, JavaScript, jQuery, MySQL, Database and system design, Caspio platform expert, WordPress/Wix, Web design, GIT, Agile methodology. I can also lead a project, estimate development hours and create a timeline to set customer expectations.

I design, develop, and maintain websites and web applications for businesses that need more than a basic setup. My main work is WordPress, WooCommerce, PHP, JavaScript, APIs, AI Agentic workflows and custom web apps. I can come in for one difficult problem or take responsibility for the entire project. I'm Top Rated Plus on Upwork, with more than $300K earned across 200+ projects. I've been doing this work for over 15 years and previously served as a Director of Software Engineering, leading a team of six developers. I've worked with hundreds of companies. Some came to me for a quick fix. Others stayed for years as their websites, ecommerce operations, and technical needs grew. The initial request is not always the real problem. A client may ask for a plugin, a redesign, or an integration when the actual issue is a broken workflow, unreliable system, poor customer experience, or technology that no longer fits the business. I take the time to understand that before recommending a solution. My strongest areas include: • Custom WordPress and WooCommerce development • Plugins, themes, checkout flows, booking systems, and membership websites • PHP and JavaScript development • API, payment, POS, CRM, ecommerce, and third-party integrations • Custom web applications, SaaS products, admin tools, and internal systems • Troubleshooting, project recovery, and legacy-system modernization • UI/UX, responsive development, accessibility, and performance • Shopify customization and cross-platform ecommerce work I also work with AI integration and automation where it makes practical sense. I don't add AI simply because it is popular. I use it when it can reduce repetitive work, improve an existing process, or provide something genuinely useful to the business or its customers. My past work includes connecting Square POS data to dynamic WordPress menus for Sweet Action; building catalog, search, CMS/CRM, and Amazon/eBay integration systems for Broadfeet; developing SaaS membership and marketplace functionality for Swoasys; and creating custom WooCommerce booking, availability, checkout, shipping, and payment-processing features for Hymbas. I've also worked with organizations and brands including McEvoy Ranch, ColorFil, Hampton Lumber, Avvio Solar, Interplay Learning, Goff Books, NuPrimary, and Einstein College of Medicine. I'm especially useful when a project has become too complicated for trial and error. This may be an ecommerce feature that does not exist out of the box, an integration involving several systems, an aging website that needs to be stabilized, or a project that has already gone through one or two developers without being properly resolved. I'm based in New York City. I communicate directly, respond quickly, and explain technical issues in normal business terms. I provide realistic timelines, raise problems early, and take responsibility for the work through launch and stabilization. If you have a specific technical problem, send it over. If it points to a larger issue, I'll tell you. If you need a complete system planned and built, I can handle that too.

As a Full Stack Developer, Web Application Developer and SaaS Developer, I know shipping the first version is the easy part. The real work is building something that stays reliable as your users, data, and revenue grows, and that is the standard I hold every build to. Over the past 10+ years, I've built and launched 100+ web applications and SaaS products for startups, agencies, and established businesses. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐛𝐮𝐢𝐥𝐝 𝐟𝐨𝐫 𝐲𝐨𝐮: ✔️SaaS platforms and SaaS MVPs, including multi-tenant systems with subscriptions and billing built in from the start ✔️Custom web applications tailored to your business logic ✔️Customer portals, dashboards, and admin panels ✔️CRM, ERP, and internal business systems ✔️Marketplaces and multi-vendor platforms ✔️E-commerce stores and payment integrations ✔️AI-enabled web applications and automation ✔️REST APIs, GraphQL APIs, and real-time systems Whatever we build, it comes with secure authentication, role-based access, analytics, a database that scales, and cloud deployment you don't have to think about. You also won't need to manage me. You'll get clear timelines, regular updates, and honest advice, including when there's a simpler or cheaper way to get what you need. If something's a bad idea, I'll tell you before you pay for it. 𝐌𝐲 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐬𝐭𝐚𝐜𝐤 𝐚𝐬 𝐚 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬: 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, Next.js, Angular, Vue.js, Nuxt.js, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap, Sass (SCSS), Progressive Web Apps (PWA) 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, Nest.js, Python, Django, FastAPI, Flask, PHP, Laravel, REST APIs, GraphQL, WebSockets 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: PostgreSQL, MongoDB, MySQL, MariaDB, SQLite, Firebase, Supabase, Redis 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭: Amazon Web Services (AWS), Amazon EC2, Amazon S3, Amazon RDS, Amazon CloudFront, Amazon Route 53, AWS Lambda, AWS IAM, AWS Amplify, Docker, Kubernetes, CI/CD, Jenkins, Nginx, Apache, Vercel, Netlify, DigitalOcean, Railway, Cloudflare You're not hiring someone just to write code. You're hiring someone to build a product that your business can depend on. If you want a Full Stack Developer, Web Application Developer, or SaaS Developer who takes full ownership of the whole product, 𝐢𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐣𝐨𝐛 𝐨𝐫 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 and tell me what you're building. Let's talk about how we can build your web application and bring your idea to life.

I build, automate, fix, and optimize websites, web applications, mobile applications, and custom digital solutions for businesses, startups, and growing companies. With 8+ years of professional development experience, I combine full-stack development, UI/UX, AI automation, API integrations, database-driven applications, performance optimization, and SEO to create reliable digital products that solve real business problems. What I can help you with Full-Stack Web Development Custom web applications Business web platforms and portals Front-end and back-end development Custom dashboards and admin panels Database-driven applications User authentication and account systems API development and third-party API integrations Custom CMS and dynamic functionality SaaS and business applications Bug fixing and technical troubleshooting Web Application Development Custom SaaS applications Client portals and dashboards Booking and management systems CRM-style applications Membership platforms Directory and marketplace applications Database-driven websites Custom business management systems Web-based tools and internal applications Scalable and maintainable application architecture Mobile App Development Custom mobile applications Business and customer-facing mobile apps Mobile app UI/UX API-connected mobile applications User authentication and account functionality Database integration Web-to-mobile application integrations App maintenance, troubleshooting, and feature development AI Automation & Integrations AI-powered web applications AI integrations AI workflow automation Business process automation API-based AI integrations Automated lead capture and follow-up AI-assisted customer workflows Connecting AI tools with websites, applications, and business systems Custom AI-powered features Website Design & Development WordPress development Elementor and Gutenberg Webflow development Shopify and WooCommerce Figma to responsive website Custom website design Website redesign and modernization Landing pages Conversion-focused websites Responsive and mobile-first development Bug Fixing & Technical Support WordPress errors Elementor issues HTML/CSS/JavaScript problems PHP issues Plugin conflicts WooCommerce problems API and integration issues Responsive design bugs Website performance issues Custom application troubleshooting Ongoing maintenance and development SEO & Performance Optimization Technical SEO On-page SEO Local SEO SEO-friendly website architecture Core Web Vitals Page speed optimization Mobile performance optimization Technical website audits Why work with me? I don't just build websites. I develop complete digital solutions based on your business requirements. Whether you need a simple business website, a complex web application, a mobile app, an AI-powered workflow, an API integration, a website redesign, or help fixing an existing application, I focus on building a solution that is functional, scalable, responsive, secure, maintainable, and easy to use. My professional background includes experience as a Head of Web Development & Lead Engineer, Project Manager, and Full-Stack Web Developer, giving me experience across development, architecture, project management, QA, optimization, and client communication. My Upwork history includes successful projects involving WordPress development, WooCommerce, Wix Studio/CMS, corporate websites, website migration, local SEO, Elementor, and ongoing development, with multiple 5-star client engagements. My development process Understand → Plan → Design → Develop → Integrate → Test → Optimize → Launch I prioritize clean architecture, responsive UX, performance, maintainability, and clear communication throughout the project. If you need a full-stack developer, web application developer, mobile app developer, AI automation specialist, WordPress developer, or technical problem solver, I can help turn your requirements into a working and scalable solution.