Gregory R.

I’m a senior AI systems and full-stack engineer with deep experience designing, building, and shipping production AI products end to end. I specialize in turning complex ideas into reliable, scalable systems that actually work in the real world. My background spans AI/ML pipelines, backend systems, and modern web applications. I’ve led and contributed to projects involving large language models, multimodal analysis (video/audio), RAG architectures, automation pipelines, and subscription-based SaaS platforms. I’ve worked both as a freelancer and as a lead engineer on internal AI products used by real customers at scale. What I do best is bridge the gap between research and production. I don’t just prototype. I design systems that handle edge cases, cost constraints, performance targets, and long-term maintainability. That includes API design, data modeling, infrastructure decisions, and clear handoffs to frontend or product teams. Core strengths: → AI, Agents & LLM Systems: RAG pipelines (LangChain, Pinecone), Model Context Protocol (MCP), OpenAI/Gemini/Whisper, and custom evaluation frameworks. → Backend Engineering: Java Spring Boot, .NET, Python, Ruby on Rails, Node.js, PHP. → Workflow Automation: Complex orchestration using n8n and Zapier to connect AI agents with business logic. Full-Stack Apps: React, Next.js, TypeScript, .NET, Java, PHP, Ruby on Rails, Supabase, Stripe, and secure authentication flows. Data & Infrastructure: Postgres, MySQL, Docker, AWS, and CI/CD pipelines. I’m especially strong in AI products that involve: ✓ Advanced RAG: Retrieving context from complex datasets (PDFs, Databases) for accurate LLM responses. ✓ Multimodal Analysis: Processing Text, Audio, and Video inputs. ✓ Structured Outputs: ensuring JSON reliability and strict evaluation logic. ✓ Cost-Aware Workflows: Optimizing token usage and latency. ✓ Human-in-the-loop Systems: Designing approval flows for critical AI tasks. Clients hire me when they need someone who can think like an engineer, a product owner, and a business operator at the same time. I ask the right questions up front, communicate clearly, and deliver systems that are built to last. If you need help designing a robust RAG system, stabilizing a backend, shipping a full product, or untangling an automation workflow that’s gotten too complex, I can help. Happy to jump on a call and talk through your problem before writing a single line of code.