SammDevo

Freelance Full Stack & Mobile Application Developer

Fiverr • Freiberufler

Feb 2022 - Present • 4 yrs 8 mos

Full Stack Developer specializing in modern web applications, mobile applications, SaaS platforms, AI automation systems, Web3 applications, blockchain solutions, and scalable backend infrastructure for startups, businesses, founders, and enterprises worldwide. Expertise includes full stack development, mobile app development, frontend development, backend development, API development, database architecture, cloud deployment, AI integrations, workflow automation, SaaS MVP development, and custom software engineering. Technologies and platforms: React.js, Next.js, Node.js, Express.js, TypeScript, JavaScript, Python, React Native, Flutter, MongoDB, PostgreSQL, MySQL, Firebase, Supabase, Redis, Docker, Git, AWS, Vercel, Cloudflare, DigitalOcean, OpenAI APIs, Stripe, PayPal, Twilio, SendGrid, and third-party API integrations. Web3 and blockchain expertise: Smart contracts, dApps, crypto payment systems, wallet integrations, token platforms, NFT marketplaces, DeFi applications, blockchain automation, and Web3 SaaS products. Solutions delivered: SaaS applications, AI receptionists, CRM systems, dashboards, business portals, marketplaces, booking platforms, fintech platforms, eCommerce stores, internal business tools, automation systems, and enterprise applications. Automation and AI: AI agents, chatbots, workflow automation, voice AI, business automation, API orchestration, and no-code/low-code integrations. Platforms supported: Web applications, iOS apps, Android apps, PWAs, desktop applications, cloud-native applications, and cross-platform solutions. Focus areas: Scalable architecture, performance optimization, security, responsive design, clean code, rapid prototyping, agile development, MVP launches, and modern vibe coding workflows for fast product delivery.