Hire the Best Firebase Developers in Jacksonville, FL

I can build a mobile app for phones, tablets, smartwatches from the ground up using Xcode or Android Studio. I have experience pulling JSON data from APIs. Layouts for landscape, and portrait modes. Structuring data for storing large amounts of data.

Passionate, full-stack software developer with a background in accounting and finance. With... - 10 years of experience in freelance software development - 8 years of experience in full-time software development - A degree in accounting - And 8 years of full-time experience in accounting, finance, and overall business management ...I understand you need more than just the code. You need someone who can fully understand the needs of your business, what role the software needs to play, and how the code can get you there. This is the level of service I aim to provide from start to finish. I have worked in a wide variety of industries with clients and employers ranging from startups to large corporations, including accounting automation, e-commerce, TV broadcasting, farming, shipping logistics, social media, telecommunication, pharmacy solutions, and more. As a full stack developer, I have also gained thorough experience in many tech stacks, both new and old, including: - React/React Native/Expo - Native iOS and Android - Web development - MS Office applications and automation - Windows applications and automation - macOS applications and automation - ASP.NET - ASP Classic (Active Server Pages) - SQL/SSMS/Transact-SQL/PostrgreSQL - MongoDB and other non-relational databases - GraphQL - 3rd party database solutions like Firebase and AWS - Typescript/Javascript - Swift - Java/Kotlin - C# - C++ - Python - PHP - VBA - VBScript - and more! I am capable of working both solo and in a team and can work full stack or in a more specialized position. I am also experienced in both managing projects from start to finish as well as joining existing projects to either maintain or bring to completion. I look forward to hearing from you and seeing how I can add value to your product and/or business!

Still stuck at “we need to hire a developer”? I build focused Next.js, React, Node.js, and TypeScript SaaS MVPs, often within 2–5 weeks when scope is clearly defined with AI features, Stripe billing, multi-tenant auth, PostgreSQL, Supabase, APIs, and Figma-to-production delivery. 🚀 𝟕+ 𝐘𝐄𝐀𝐑𝐒 | 𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 | 𝟏𝟎𝟎% 𝐉𝐎𝐁 𝐒𝐔𝐂𝐂𝐄𝐒𝐒 𝐍𝐄𝐗𝐓.𝐉𝐒 𝐒𝐀𝐀𝐒 𝐁𝐔𝐈𝐋𝐓 𝐅𝐎𝐑 𝐑𝐄𝐀𝐋 𝐔𝐒𝐄𝐑𝐒 A SaaS product is not production-ready because the interface looks complete. The difficult work sits underneath it: authentication, permissions, tenant isolation, database design, API reliability, Stripe webhooks, subscription states, AI failure handling, onboarding, admin controls, and deployment. That is where I take ownership. ⚙️ 𝐂𝐎𝐑𝐄 𝐅𝐔𝐋𝐋-𝐒𝐓𝐀𝐂𝐊 𝐖𝐎𝐑𝐊 • Next.js, React, Node.js, and TypeScript • Multi-tenant SaaS architecture • Authentication, roles, and permissions • PostgreSQL, Supabase, and Firebase • REST APIs and third-party integrations • Stripe subscriptions, checkout, and webhooks • Admin dashboards and account management • Tailwind CSS and responsive interfaces • Vercel and AWS deployment • CI/CD, testing, and production release workflows 🤖 𝐀𝐈 𝐅𝐄𝐀𝐓𝐔𝐑𝐄𝐒 𝐈𝐍𝐒𝐈𝐃𝐄 𝐓𝐇𝐄 𝐏𝐑𝐎𝐃𝐔𝐂𝐓 I do not add a disconnected chatbot and label the product “AI-powered.” The AI layer is designed around the actual user workflow: • Streaming AI chat • OpenAI API integration • Context-aware assistants • Voice AI experiences • Structured AI outputs • Personalized recommendations • Workflow and task automation • Usage limits, fallbacks, and error handling • Secure access to user and tenant data 📈 𝐒𝐄𝐋𝐄𝐂𝐓𝐄𝐃 𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐖𝐎𝐑𝐊 𝐓𝐑𝐈𝐏𝐓𝐀𝐋𝐊 𝐍𝐄𝐗𝐓.𝐉𝐒 + 𝐎𝐏𝐄𝐍𝐀𝐈 𝐓𝐑𝐀𝐕𝐄𝐋 𝐒𝐀𝐀𝐒 Led the end-to-end development of an AI travel platform for Drew Binsky’s audience. • Next.js, React, TypeScript, Node.js, and OpenAI API • Streaming chat and voice AI assistant • Personalized day-by-day itineraries • 2,000+ curated travel guides across nine categories • Freemium subscription flow • Private traveler community • Mobile-first interface and itinerary email delivery • Live product with a 4.9/5 rating 𝐒𝐔𝐁𝐒𝐂𝐑𝐈𝐏𝐓𝐈𝐎𝐍 𝐒𝐀𝐀𝐒 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌 Built the subscription architecture, onboarding, account management, billing workflows, and production systems for a SaaS product that reached: • $40K MRR within six months • Active subscriptions and paying users • Production Stripe billing and account management 𝐑𝐄𝐀𝐂𝐓 + 𝐓𝐘𝐏𝐄𝐒𝐂𝐑𝐈𝐏𝐓 𝐏𝐑𝐎𝐃𝐔𝐂𝐓 𝐔𝐈 Completed a 275-hour Upwork engagement converting detailed Figma screens into responsive production interfaces. • $8,250 completed contract • Reusable React component architecture • Pixel-accurate TypeScript implementation • Responsive desktop and mobile behavior 𝐂𝐔𝐒𝐓𝐎𝐌 𝐔𝐆𝐂 𝐂𝐎𝐋𝐋𝐄𝐂𝐓𝐈𝐎𝐍 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌 Delivered a custom UGC collection and management product as a fixed-price build. • $3,000 completed contract • Delivered on time • Built to the requested workflow • Five-star client outcome Current Upwork work includes long-term Next.js and Firebase development, healthcare API and AI integration, SaaS stabilization, and custom workflow development. 🧭 𝐁𝐄𝐅𝐎𝐑𝐄 𝐂𝐎𝐃𝐈𝐍𝐆 𝐒𝐓𝐀𝐑𝐓𝐒 I define the decisions that usually cause delays and rewrites later: • Core user journey • MVP scope and exclusions • User roles and tenant structure • Database schema • API contracts • Authentication and authorization • Stripe billing states • AI workflow boundaries • Admin requirements • Deployment and release plan ✅ 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐂𝐀𝐍 𝐄𝐗𝐏𝐄𝐂𝐓 • Clear milestones and acceptance criteria • Production-focused architecture • Reusable frontend and backend components • Testing around authentication, billing, APIs, and permissions • Written updates covering completed work, next steps, and blockers • Direct technical feedback when a feature should be simplified • Ownership from architecture through production deployment Send the product stage, target users, current stack, and launch constraint. I will identify the highest-risk areas, recommend the architecture, and define the clearest first milestone.