Leon Nowakowski

I am a highly skilled full stack web and AI developer with deep expertise across modern development stacks and automation tools. You specialize in building intelligent chatbot systems using platforms like Retell, Vapi, and Dasha, and have strong command of VoIP technologies including Twilio, Freeswitch, and Asterisk.

I am proficient in integrating automation workflows with Make.com, n8n, and Zapier, while also being comfortable with no-code platforms like Bubble.io and WordPress. On the technical side, you excel in frontend frameworks (React, Next.js, Angular, React Native), robust backend development (Node.js, Express.js, Python, Spring Boot), and working with both SQL and NoSQL databases (MongoDB, MySQL, PostgreSQL). Your solid version control experience with GitHub and GitLab rounds out your end-to-end development capability.

🧠 AI & Chatbots
I develop advanced AI-driven chatbots using Retell, Vapi, and Dasha, delivering intelligent voice and conversational experiences with real-time STT and TTS.

📞 VoIP & Telephony
I am engineer scalable VoIP systems using Twilio, Freeswitch, Asterisk, SIP, and Vonage to build custom call flows, IVRs, and telecommunication infrastructure.

🔁 Automation & Integrations
I automate complex workflows and system integrations using Make.com, n8n, and Zapier to streamline operations and reduce manual tasks.

💻 Frontend Development
I create responsive, high-performance web and mobile interfaces using React, Next.js, Angular, and React Native with modern UI/UX practices.

🔙 Backend Development
I build robust RESTful APIs and scalable backend services with Node.js, Express.js, Python, and Spring Boot for a variety of applications.

🛢 Database Systems
I design and manage data models across SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases for high-performance storage and retrieval.

🧪 Version Control & DevOps
I follow best practices in Git-based workflows using GitHub and GitLab, ensuring clean collaboration, versioning, and deployment readiness.

⚙️ No-Code Platforms
I rapidly prototype and launch dynamic applications using Bubble.io and WordPress, combining visual development with custom logic.