David K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Most "AI" solutions on the market are generic toys. You don't need a basic chatbot—you need a custom AI agent that actually understands your business, talks to your database, and automates your most expensive workflows. I build production-ready, custom AI agents and internal tools for B2B companies. Whether you need to automate complex data entry in your CRM, build a highly-contextual sales outreach engine, or extract a scalable SaaS product from your internal processes, I engineer the infrastructure that makes it happen. I don't just string APIs together. I build robust, scalable architectures with a focus on data governance, security, and measurable ROI. Core Capabilities: Custom AI Agents: Autonomous workflows, intelligent web scraping, and specialized LLM wrappers tailored to your proprietary data. B2B System Integrations: Deep integrations with platforms like HubSpot, Stripe, Jira, and custom REST APIs to make your tools talk to each other intelligently. Full-Stack Architecture: Deploying reliable, high-performance backends and user-friendly interfaces to manage your AI systems. Technical Stack: AI/Backend: Python, OpenAI/Anthropic APIs, LangChain, custom scripting, and data pipelines. Frontend/Infrastructure: Next.js, Vercel, Docker, GitHub Actions, and custom API development. If you have a specific bottleneck in your operations or a vision for a custom AI tool, let's talk. I'll help you map out the architecture, validate the use case, and build a system that drives real leverage for your team.