Leo A.

Senior AI Workflow Architect & Full-Stack Engineer | Agentic Systems

I build production-grade Agentic AI systems and multi-step automated workflows that handle real scale, legal liability, and cost controls from day one. I do not build tech demos that break under rate limits or hallucinate on edge cases. I design, secure, and deploy autonomous AI agents, multi-agent frameworks (LangGraph), and vectorized data pipelines (RAG) tied into robust SaaS and mobile applications. Recent Production Milestones: • Shipped custom AI agent infrastructure for an app with 15k live users. • Built an omnichannel AI agent orchestrating multi-channel text/voice workflows for 4k+ tenants. • Co-founded and solo-engineered an enterprise AI automation platform recognized at the European AI Awards. Production-Grade Agentic Systems I’ve Built • Kiiwi — Head of Product & AI Architected and solo-built core AI infrastructure to deploy "Crave," an autonomous real-time deals agent, within 3 months for a consumer mobile app with 15k live users in California. • Lightwork AI — Product Lead (Joined at Seed) Led the architecture of an omnichannel AI agent automating tenant communications across SMS, email, messaging, and voice calls. Configured LangGraph state management and a vectorized knowledge base to serve 4k+ tenants across 1,000 properties. Built the rapid prototyping workflow (v0 to customer-validated production) that helped close their $3M seed round. • Vindey — Founder Designed and solo-engineered an end-to-end automation engine for real estate letting agents. Built the full setup: React frontend, Python backend, custom GPT-4/Claude agentic orchestration, multi-channel Twilio integrations, real-time WebSockets sync, and pgvector RAG data layers. • Kinds Security — Founding Engineer Lead backend, DevOps, and security engineer for an enterprise security awareness platform. Shipped automated phishing simulation engines into M365 and Google Workspace, automated domain rotation/SSL via Caddy on Azure, and built client-side encryption layers. • Enterprise Scale (Getir & iyzico) Developed core production software and payment integration systems for two of Turkey’s largest tech ecosystems (Quick commerce and digital payments). Agentic Security & Agent Code Audits Because I use AI-native tools (Claude Code, Cursor, v0) daily, I know exactly where LLMs leave security holes. I provide security and rate-limiting reviews for codebases built with Bolt, Replit, Lovable, or Cursor before your agents go live to ensure they don't leak data, abuse API credits, or fail under pressure. How I Work • Autonomous Execution: I do not wait for Jira tickets. Give me the business outcome or product goal, and I will architect the multi-agent workflow, build the frontend/backend, and outline the next optimization steps. • Production-First Mindset: Rate limits, caching layers, tokens-per-minute cost control, data compliance, and security are integrated directly into the foundational layout, never added as an afterthought. • Clear Communication: Before engineering, I ran a YouTube channel with 200k subscribers. Translating complex agentic workflows, model limitations, and database structures to non-technical stakeholders comes naturally. • High Efficiency, Zero Thinking Delegation: I build AI-native using Claude Code every day for rapid velocity, but I manually review every line of code it writes. The AI handles the boilerplate; I handle the architecture, security, and logic. Tech Stack • AI & Agentic Architecture: LangGraph, LangChain, Model Context Protocol (MCP), Vector RAG (pgvector, Weaviate, Pinecone), Deepgram, ElevenLabs, OpenAI, Claude, NVIDIA APIs • Backend & Infrastructure: Python, FastAPI, Node.js, NestJS, WebSockets, REST, GraphQL • Cloud & MLOps: AWS (EC2, Lambda, ECS, RDS), Azure, Google Cloud, Docker, Kubernetes, CI/CD, GitHub Actions, Cloudflare, Caddy, Nginx • Data Layers: PostgreSQL, Supabase, Redis, Firebase, MySQL, MongoDB • Frontend & Mobile: React, Next.js, TypeScript, Vue.js, Tailwind CSS, shadcn/ui, Flutter, React Native • Enterprise Integrations: Twilio (SMS/Voice), Microsoft Graph API, Google Workspace APIs, Stripe, QuickBooks, CRM/PMS integrations