Flavio D.

I’m a Senior Full-Stack Developer with 15 years of experience building, maintaining, and modernizing real-world web applications, specializing in ColdFusion/CFML, SQL databases, integrations, SaaS development, and production systems. My experience goes beyond writing code. I work on complete software solutions, including architecture, database design, APIs, security, user workflows, integrations, billing systems, AI-powered features, administration panels, and production deployment. My main areas of work include: * ColdFusion / CFML / CFScript — legacy modernization, maintenance, migrations, performance optimization, and new development * SaaS development — multi-tenant systems, subscriptions, permissions, dashboards, admin panels, and business workflows * AI integrations — conversational interfaces, classification, summaries, content generation, automation, search, and structured data extraction * APIs & integrations — REST APIs, OAuth, webhooks, third-party services, payment systems, and external platforms * Database development — SQL Server, MySQL, and PostgreSQL, including complex queries, optimization, migrations, and data architecture * Full-stack development — JavaScript, jQuery, HTML5, CSS3, Bootstrap, React/Vite, PHP, and Three.js * Infrastructure — IIS/Windows Server, AWS EC2/RDS/S3, deployments, scheduled tasks, logging, backups, and performance tuning I frequently work with mature systems where reliability matters: legacy codebases, complex databases, business-critical integrations, and applications that need to evolve without breaking existing workflows. A large part of my work involves joining existing projects, understanding how they work, identifying problems, and improving them incrementally instead of unnecessarily rebuilding everything from scratch. For AI-powered projects, I focus on practical features that solve real business problems rather than adding AI for its own sake. Examples include conversational interfaces connected to application data, AI-assisted administration tools, search, workflow automation, content processing, and structured information extraction. I use modern AI-assisted development tools such as Codex and Claude Code to accelerate development, refactoring, testing, debugging, and documentation, while manually reviewing and validating production changes. Version control: Git, GitHub, Bitbucket, SVN, and TortoiseSVN for legacy environments. I am comfortable working with staging and production environments, existing codebases, databases, APIs, third-party integrations, and business-critical applications. I can own a project independently or work as part of an existing development team. My priority is simple: understand the system, solve the problem, communicate clearly, document the work, and deliver reliable production-ready software.