I help startups and businesses launch faster, scale smarter, and cut costs through modern web applications, AI-driven solutions, and robust backend systems. My focus: building production-ready platforms that perform at scale. What I Specialize In: ✅ Modern Web Apps – React, Next.js, Node.js (from MVPs to enterprise SaaS) ✅ AI Integration – LangChain, Claude API, custom RAG pipelines, workflow automation ✅ Backend Architecture – Python (FastAPI), Node.js, Strapi CMS, APIs, databases ✅ Mobile Development – React Native apps with native performance ✅ End-to-End Delivery – Architecture → CI/CD → deployment → monitoring Core Skills: Frontend: React, Next.js, React Native Backend: Node.js, Python, Strapi CMS, PHP/Laravel/WordPress AI & Automation: LangChain, LangGraph, PydanticAI, Claude API, custom RAG Infrastructure: AWS, Docker, Terraform, CI/CD pipelines Databases: MongoDB, MySQL, PostgreSQL Data/Analytics: Elasticsearch, Pandas, real-time dashboards Recent Projects: Crypto Investment AI Assistant: integrated 10+ financial APIs with portfolio management, TA signals, and real-time alerts. Spectation Sports: scaled from MVP to 50k+ concurrent users, 99% uptime, with 40% infra cost savings. GameDevHQ: built analytics + automation for 600+ students, reducing admin overhead. Why Clients Choose Me: ✔️ Proven track record delivering scalable, production-ready systems ✔️ Experience leading teams and owning projects end-to-end ✔️ Strong focus on performance, reliability, and measurable outcomes ✔️ Clear, proactive communication—no guesswork, no delays If you need a full-stack engineer who can deliver results from day one, let’s talk about how I can help bring your project to life. — David S.…I help startups and businesses launch faster, scale smarter, and cut costs through modern web applications, AI-driven solutions, and robust backend systems. My focus: building production-ready platforms that perform at scale. What I Specialize In: ✅ Modern Web Apps – React, Next.js, Node.js (from MVPs to enterprise SaaS) ✅ AI Integration – LangChain, Claude API, custom RAG pipelines, workflow automation ✅ Backend Architecture – Python (FastAPI), Node.js, Strapi CMS, APIs, databases ✅ Mobile Development – React Native apps with native performance ✅ End-to-End Delivery – Architecture → CI/CD → deployment → monitoring Core Skills: Frontend: React, Next.js, React Native Backend: Node.js, Python, Strapi CMS, PHP/Laravel/WordPress AI & Automation: LangChain, LangGraph, PydanticAI, Claude API, custom RAG Infrastructure: AWS, Docker, Terraform, CI/CD pipelines Databases: MongoDB, MySQL, PostgreSQL Data/Analytics: Elasticsearch, Pandas, real-time dashboards Recent Projects: Crypto Investment AI Assistant: integrated 10+ financial APIs with portfolio management, TA signals, and real-time alerts. Spectation Sports: scaled from MVP to 50k+ concurrent users, 99% uptime, with 40% infra cost savings. GameDevHQ: built analytics + automation for 600+ students, reducing admin overhead. Why Clients Choose Me: ✔️ Proven track record delivering scalable, production-ready systems ✔️ Experience leading teams and owning projects end-to-end ✔️ Strong focus on performance, reliability, and measurable outcomes ✔️ Clear, proactive communication—no guesswork, no delays If you need a full-stack engineer who can deliver results from day one, let’s talk about how I can help bring your project to life. — David S.WWWW…