Dave Hallins

AI Full Stack Developer

Fiverr • Freelance

May 2026 - Present • 2 mos

As a freelance AI Full Stack Developer on Fiverr, I design, build, and ship AI-powered SaaS applications and web platforms for founders and businesses across multiple industries. I work across the full stack, architecting scalable backend systems, building responsive frontend interfaces, and integrating large language models into client products to power intelligent, user-facing features. My work spans designing RESTful APIs, structuring databases for performance and scale, and deploying applications to cloud infrastructure with CI/CD pipelines for reliable, repeatable releases. I integrate LLM providers into application logic, building prompt pipelines, retrieval-augmented generation (RAG) systems, and AI agents tailored to each client's actual business problem rather than generic demos. On the frontend, I build with modern frameworks like React and Next.js, focusing on clean, maintainable code and interfaces that hold up under real usage. I work directly with founders and small teams to turn early-stage ideas into shipped, production-ready products, often picking up projects mid-build on platforms like Lovable, Base44, Bolt, and Replit to debug, extend, or redeploy them. This work has sharpened my ability to move quickly from idea to production-ready AI product, while keeping systems stable as real users start to depend on them.

Full Stack Web & Mobile Developer

Software Engineering Daily • Freelance

Oct 2025 - Mar 2026 • 5 mos

Built and deployed responsive web applications and cross-platform mobile apps for clients across multiple industries. Core stack includes JavaScript, CSS, progressive web apps, and API integrations. Focused on clean architecture, fast delivery, and production-ready code with zero back-and-forth.