Carlo

Over deze freelancer

I build scalable SaaS platforms, web applications, and mobile apps that solve real business problems.

From responsive frontends to robust backends and cloud infrastructure, I deliver production-ready solutions that are clean, secure, and built to scale.

What I Deliver

• Full-stack SaaS platforms with subscription management and payment processing • Responsive web applications with modern frontend frameworks • Native and cross-platform mobile apps for iOS and Android • Scalable APIs and microservices (Python, Node.js) • Optimized databases (PostgreSQL, MySQL, MongoDB, Redis) • Cloud infrastructure and CI/CD pipelines (AWS, Azure, Docker, Kubernetes) • AI integration (Claude, OpenAI, LangChain, RAG)

Key Results

• Built SaaS platforms serving 50,000+ users• Architected billing systems processing $3M+ in annual transactions• Reduced API response times by 40% through optimization• Published mobile apps with 100,000+ downloads• Delivered MVP to production in under 4 weeks

How I Work

1. Understand your goals and technical requirements2. Design the system architecture and timeline3. Build, test, and refine with regular updates4. Deploy and provide ongoing support

I personally lead every project. No outsourcing. No handoffs. Just clean code, clear communication, and results.

Technical Toolkit

Frontend: React • Next.js • TypeScript • Tailwind CSSBackend: Python • FastAPI • Django • Node.js • Express.jsMobile: React Native • Flutter • iOS (Swift) • Android (Kotlin)Databases: PostgreSQL • MySQL • MongoDB • Redis • Supabase • FirebaseCloud: AWS • Azure • Docker • Kubernetes • CI/CD • TerraformAPIs: REST • GraphQL • Webhooks • Stripe • Twilio • OpenAI • Claude

Who I Help

SaaS companies, startups, enterprises, and mobile-first businesses.

Available anytime for worldwide clients.

Send me a message. I'll book a free consultation to understand your needs.