Hire the Best Web Application Developers in Florida

I am an experienced startup founder having served the Fortune 500 for 6+ years with high volume automations and applications annualizing returns of 7-figures. Now, I design and ship production-ready version 1 products and automation systems for teams that have an idea but need clarity on what to build first and how to make it actually work in the real world. I work like a technical co-founder / systems architect: define the workflow, pressure-test the constraints, cut scope to what matters, and ship something that gets used. Typical problems I’m brought in for: - “We know this should be automated, but not sure where to start.” - “We need an MVP fast, but it HAS to be scalable, reliable, and secure” - “I built an application but how can I get people to access it?” How I Work I don’t start with tools. I start with workflow responsibility and risk mitigation. 1. Workflow & Constraint Mapping (1 week) - Inputs, decisions, edge cases, handoffs - Where automation is safe vs assist-only - What must be hallucination free 2. Scope Lock & Risk Elimination(1 week) - Strip to the smallest version that still holds up - Push unclear ROI paths down the road - Define success metrics before building 3. Production-Grade Build(2-3 weeks) - Real auth, real data flows, real error handling - AI integrated where it improves speed or accuracy - Designed to survive real usage, not demos 4. Iterate on Reality(1-2 weeks) - Usage data > opinions - Tight feedback loops - No endless discovery cycles What You Get - Senior-led "Version 1" systems designed to for the real world, not demos - AI agents, and automation systems embedded in real workflows - Clear architecture and handoff (documented so anyone else can pick up) - Systems that reduce manual effort, error rates, or cycle time - A technical engineer experienced in managing project(s) Typical Outcomes - Your "Version 1" shipped in 30 days - 70–90% reduction in manual workflow steps - Fewer handoffs, fewer mistakes, clearer ownership - Systems that teams actually keep using Who This Is For - Founders who need a credible first version - Legal, ops, or compliance-heavy teams where accuracy matters - Businesses with real workflows and real consequences - Teams without in-house AI, architecture or project leadership Core Services - Senior-Led AI & Automation "Version 1" Products - Workflow-Driven System Design - Technical Project Management - AI Agent Architectures - Automation & Integration (Legal, Ops, Compliance) - MVP Scoping & Architecture Reviews - Technical Stack (Used Pragmatically) - Python, FastAPI, background workers - LLMs, RAG, structured extraction, decision support - Cloud-native deployments (AWS/GCP) - Event-driven automation, queues, CI/CD - Secure data handling, audit-ability, role-based access If you're ready to work with someone who will be transparent, deliver what they said they would, desires mutual success, and has an obsession with excellence, let's talk!

I am a full stack web developer with 11 years experience designing, developing, and testing web applications in the cloud. I have been a contractor for the past 9 years and have worked on multiple projects ranging from website audits to database administration. I have worked with multiple APIs and SDKs that range from forecast APIs to ecommerce APIs. Since starting on UpWorks, I have worked on multiple successful projects with little to no issues learning the software and building the features or applications that the clients are looking for. Before being a contractor, I worked as the sole developer at a start-up (Delta Five Systems). Delta Five is a robotics company that works with the hospitality industry. Their main product is a bed bug trap, which will automatically lure, capture, and report a bed bug incident within the room. At Delta Five I created the website, dashboard, device interface (Which had thousands of devices connecting daily), and the API. Since becoming a contractor, I have worked on multiple successful projects. I worked on Network Insights, an email analysis tool that analyzes communication between employees and clients to determine where communication is lacking. This tool uses multiple messaging APIs (Slack, Office 365, and Gmail) to allow companies to run reports to determine the point in which employees and clients are allowing the communication to slow or stop. Another early project was eHangar, an interactive airplane panel designer that allows users to create and manage airplane panels by dragging and dropping instruments on the web page. While creating the design, it automatically updates the price and weight based on the manufacturing specifications. I have also worked with True Blue Life Insurance and helped them with their life insurance quoting system and WordPress site. When working on the WordPress site, I mainly worked on plugins and the SEO . My favorite contract to date is with BuyItLive, a company that harnesses the power of social media in order to give small businesses a step up by helping to increase their conversion rates and allowing users to manage their orders and sales in one location. By connecting to Shopify, clients have the ability to easily import from their current shop. Knowing that all users are not the same, we built multiple payment options using payment APIs (Stripe, Square, WePay, Sezzle, and PayPal). I am always interested in new and exciting projects, and always will to work with you on price. My main goal is to build your application to meet and/or exceed your expectations!

10+ Years as a Full stack developer and Fractional CTO - using React.js, React-Native, Vue.js, Node.js, Next.js, Nest.js, and overall Full stack development in web and mobile. 10+ Years specifically building SaaS projects. SaaS development from MVP to complex high loaded products. 10+ Projects built with high user load in the role of Full stack developer - Delivered robust applications with a 100% job success score. (As an example app called Niya has over 💲 50.000 💲 active users) As a Full stack developer - I’m using in frontend (React, Next.js, React Native Tailwind, shadcn and other style UI libraries, Vercel), backend (Node.js, MongoDB, PostgreSQL) Neon, Render, also deep work with supabase (popular for AI Vibe coding). Also as a Full stack developer I made over 15 apps using React Native CLI and React Native Expo, so I’m open to mobile app developer opportunities. I used to work separately as a web developer only as well. As a Fractional CTO I gained a skill to be more specific on the project stack based on project goals, budget and plans. Performance & Scalability - Being Full stack developer is not only to build and ship it’s also to optimized solutions for speed, SEO, and scalability. I have worked on SEO on domains with high domain authority. Worked a lot with different backend infra providers. Starting some basics, like serverless solutions, finishing AWS services. Agile Collaboration - Transparent communication, iterative workflows, and timely delivery. I used to be on some projects in the role of project manager as well, I know the right way to manage things. I handle the entire development lifecycle, from React Native UI UX design to backend architecture, API integration, cloud deployment, overall a whole full stack delivery.. Hey, I’m Myroslav, a full stack developer and Fractional CTO on steroids with AI usage and large knowledge as a React developer & Senior web developer & IOS developer & Android developer as well. with over 10 years of experience since 2016, specializing in the Full stack development with different technologies React.js, Node.js, Next.js, Nest.js, React-Native CLI, React-Native, Expo, Vue.js, in generally mostly javascript based. I really love mern and mern stack in general, but nowadays I'm using PostgreSQL for most of the projects. My focus as a full stack developer is to deliver a fully functional, and production ready MVP for you within 20-40 days, you don’t need to hire ux designer, I’ll handle everything in house. ). I can even handle your "Replit" or "Base44" or "Lovable" or any other AI/Vibe-coding tools you used to make your project. Making sure that we have a great structure & architecture of the application, and making sure it’s ready to get heavy lifting features later on, and supporting hundreds of thousands requests hourly bases. My Fractional CTO experience will bring a new breath to your project. Industries: In the past I worked a lot with heavy loaded services that requested difficult mapping, maps, routes integration, orders functionality, complex payment integrations. Also worked many times with Health and Wellness, Transport & Geo, Retail, Dating and Lifestyle, Food Delivery, Fintech and Banking, Entertainment and Media, Logistics and Manufacturing, Productivity and Education, Marketplaces and Advertising, Automotive and Travel. Frameworks and staff: as a full stack developer, I used a lot of mern and mern stack. I also have experience working as a react developer or web developer only, and full stack developer django in the past. For the last 4 years I've been actively going deep into LLMs and machine learning which is mostly python based, so I’d say I can call myself a senior python developer as well. Let’s Connect! GET YOUR MVP WITHIN 20 DAYS! Click the “Invite to Job” button, and let’s discuss turning your idea into reality.

Senior ColdFusion Architect | Legacy System Modernization | CF7-CF2025 Upgrades | Lucee Migration | SQL Server / MySQL Expert Profile Overview Top Rated PLUS Freelancer with $200K+ Earned on Upwork 100% Job Success • 18 Client Engagements • Long-term client relationships Senior web developer and ColdFusion architect with 30+ years of experience specializing in legacy system modernization, web development, database architecture, and performance optimization. I help organizations stabilize, upgrade, and modernize ColdFusion applications that have been running critical business systems for many years. Many companies still rely on ColdFusion systems built 10–20 years ago, and I specialize in bringing these systems up to modern standards while maintaining stability and minimizing downtime. My experience spans the entire software lifecycle including requirements analysis, system architecture, development, performance optimization, and production troubleshooting. Core ColdFusion Modernization Services • ColdFusion upgrades (CF7 → CF2025) • Lucee migrations • Database refactoring (SQL Server / MySQL) • Security hardening (bcrypt, authentication modernization) • Performance optimization • Legacy code documentation and stabilization ColdFusion & CFML Expertise Extensive experience across multiple generations of the platform: ColdFusion 3 / 5 / 8 / 9 / 10 / 11 / 2016 / 2018 / 2021 / 2023/ 2025 Railo 4.2 Lucee 5.0 / 5.3 This long-term platform experience allows me to work effectively with older legacy systems as well as modern CFML environments. Database Expertise Experienced database architect and administrator working with: • Microsoft SQL Server • MySQL • MS Access Areas of focus include: • Database design • Query optimization • Stored procedure development • Performance tuning • Data migration and integration Full-Stack Development Skills In addition to CFML development, I work across modern web technologies including: • JavaScript / jQuery • Python • Bootstrap • WordPress / PHP • REST APIs • Postman Development Approach I bring a practical business-focused perspective to development projects. As a former CPA, I understand business logic, financial systems, and operational requirements, allowing me to design solutions that balance: • Technical excellence • Business priorities • Project timelines • Budget constraints Typical Projects Typical engagements include: • Rescuing legacy ColdFusion systems • Upgrading ColdFusion servers and codebases • Migrating applications to Lucee • Debugging production issues in legacy systems • Database optimization and refactoring • Documenting large legacy codebases Availability Available for: • Ongoing development work • Modernization and migration projects • Production system troubleshooting • Long-term consulting engagements Ready to begin work immediately. Complete Client Feedback: "Patrick did outstanding work for us. He was very timely and efficient in addressing our urgent needs. I would recommend Patrick to anyone needing help with coding or database issues." — CF2016 Programmer Needed project "Patrick is knowledgeable, thorough, thoughtful and was available to meet my needs. All around great guy to work with!" — ColdFusion/SQL Database Optimization project "Patrick maintains, updates, and enhances our custom ColdFusion website. He is part of our team, and we can always count on him. Patrick has consistently delivered excellent results." — Part-Time ColdFusion Developer project "Patrick was a delight to work with. Not only does he have a great amount of experience, he is very personable and a good communicator. Whenever I emailed him, I would receive a response in minutes." — ColdFusion Developer project "Patrick is a pleasure to work with. He is communicative, knowledgeable, and organized. He successfully navigated some tricky situations and helped strengthen our team with his skills and kindness." — Full-Time ColdFusion Developer project

Experienced Full-Stack Developer | Cloud-Based Solutions | Web & Mobile Applications I specialize in building modern, cloud-based web and mobile applications, helping businesses transform their ideas into powerful digital solutions. With expertise in both frontend and backend technologies, I create scalable, secure, and user-friendly applications. What I Can Do: Web Application Development: I design and develop robust web applications tailored to your specific needs. REST API Design & Implementation: I create and integrate APIs using PHP, ASP.NET Core, or Node.js, ensuring high performance and seamless communication between services. Database Architecture: I design and optimize relational databases using SQL Server, MySQL, or PostgreSQL for efficient data management. UI/UX Development: I convert design documents into fully functional, interactive user interfaces, providing a great user experience. Cross-Platform Mobile Apps: I develop mobile applications using Xamarin or Flutter, ensuring smooth performance across iOS and Android platforms. Cloud Deployment: I deploy applications to Google Cloud Platform (GCP), ensuring scalability, security, and high availability. API Integrations: I integrate web applications with popular APIs such as Google APIs (Drive, Sheets, Maps, etc.), enabling advanced functionality. Technologies & Tools I Use: Frontend: Angular, TypeScript, HTML5, CSS3 Backend: NestJS, ASP.NET Core Web API, Laravel, Lumen, Express Database: SQL Server, MySQL, PostgreSQL, EntityFramework, Sequelize, Eloquent, Doctrine, TypeORM Real-Time Communication: Socket.io Mobile Development: Xamarin, Flutter Cloud & Deployment: Google Cloud Platform (GCP), Docker, Kubernetes Third-Party Integrations: Authentication: Auth0 SMS/Voice: Twilio Email: SendGrid, SendInBlue Google APIs: Google Drive, Google Sheets, Google Maps, Google Places Let’s discuss how I can help you build the next successful web or mobile application!

I'm a senior full-stack engineer and systems architect with 24 years building infrastructure and platforms at Microsoft, Amazon, Oracle, and ServiceNow. I bring that depth to focused, well-scoped client work and deliver it at startup speed: well-defined projects in days, not weeks. Most recently I designed and built a complete HIPAA-compliant healthcare platform from zero to production, solo. That included multi-tenant architecture, role-based access control, insurance claims processing (EDI 837P and 835 ERA plus real-time eligibility), telehealth video, automated clinical workflows, and a full client portal. The range there, from data modeling to third-party API integration to security hardening, is the range I bring to your project. Where I do my best work: Well-specified builds: API and systems integrations, dashboards, internal tools, and complete small to mid-sized applications Connecting systems that were never meant to talk to each other (payment processors, clearinghouses, CRMs, and third-party APIs) Python and Django backends, AWS infrastructure, and the full stack around them Taking a clear spec and returning working, tested software quickly How I work: I prefer fixed-price engagements, so you know the cost up front and pay for the delivered result rather than logged hours. I ask the questions that matter before I start, communicate clearly throughout, and hand off tested code. I take on projects where the requirements are well-defined, because that is where I move fastest and where you get the most value for your budget. If you have a defined build and want it delivered correctly and quickly by an engineer who has operated at a principal level, send it over and let's talk through it.