Anthony S.

I am a full stack engineer who builds production web apps and SaaS for B2B companies: portals, dashboards, multi tenant platforms, and the integrations that make them useful day one. Searchers looking for React, Next.js, or SaaS help usually want the same thing I sell: working software on a clear timeline, not a slide deck. AI belongs in the product only when it pays for itself. HOW I DELIVER I run delivery through a software factory my team and I own: AI assisted implementation, review, and testing, with people accountable for what ships. This is proven delivery, not vibe coding. Top Rated Plus. 100% Job Success. $300K+ earned across 130 jobs. Review, automated checks, and testing are woven in: check, resolve, recheck before ship. WHAT I BUILD • Web applications: React and Next.js, Node, TypeScript, Python and FastAPI, Supabase and PostgreSQL, AWS, Docker • SaaS platforms and MVPs: multi tenant architecture, authentication, role based access, Stripe, admin panels, analytics, client portals • APIs and integrations: REST, webhooks, Stripe, CRM sync, third party services • Modernization: turning no code and page builder builds into maintainable React and Next.js apps • AI inside products when it fits: RAG over your data, TWO WAYS TO ENGAGE Fixed scope build. You know what you want. I architect and ship with tests, documentation, and code your team owns. Paid Clarity Audit (Scoping Engagement). Not sure what to fund first? I assess product, data, and workflows, then return a prioritized roadmap with realistic timelines and cost ranges. Priced around 10% of the projected build. This is a paid decision pack, not a free consult or free teardown. HOW WE SHIP Disciplined delivery, review gates, and clear communication. I am who you talk to. Project Assistant is available when you want team capacity or continuity. WHERE THIS HAS LANDED 130 jobs on Upwork across EdTech, pharma, real estate, logistics, financial services, and CRM style platforms. Membership portals, multi portal apps with role based access, subscription products, marketplaces, B2B order portals, and multi tenant SaaS. Top Rated Plus. 100% Job Success. $300K+ earned. Based in Clearwater, Florida. US based, native English. Hours that work for Eastern Time clients. Message me with the outcome you need and a budget band. We will decide on a call whether to scope a build in the $5K to $10K range (or beyond) or start with a paid Clarity Audit.LLM features, agents and automation that run in production