I design and build secure, high-performance distributed systems, multi-tenant SaaS platforms, and production-grade Agentic AI/RAG architectures. With 5+ years of full-stack experience, I focus on clean systems design, database security, and resilient background worker orchestration.
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🤖 Agentic AI & Advanced RAG
Orchestrating multi-agent systems via LangGraph, multimodal document processing (Gemini Vision), semantic search optimization (Qdrant), and custom confidence-gating retrieval pipelines. -
🏢 Enterprise SaaS Architecture
Multi-tenant database design, secure row-level isolation (Supabase RLS), and robust background queues (BullMQ, Redis) designed for high-concurrency event handling. -
🛡️ Cloud & Regulated Security
Architecting environments that meet strict compliance requirements (HIPAA data isolation, FDA teleguidance safety metrics), AWS serverless, and containerization (Docker).
| Layer | Technologies & Tools |
|---|---|
| Languages | TypeScript · JavaScript · Python · SQL |
| Frontend & Mobile | Next.js · React · React Native · Redux Toolkit · Tailwind CSS |
| Backend & AI | Node.js (NestJS) · FastAPI · LangGraph |
| Data & Vector | PostgreSQL (Supabase) · Qdrant · Redis |
| Infra & DevOps | AWS (ECS/Lambda) · Docker · GitHub Actions |
- Portfolio: derejeseifu.vercel.app
- Upwork: Top Rated Freelancer Profile (5.0★)
- LinkedIn: linkedin.com/in/drjseifu1991
- Email: [email protected]
- Calendly: Schedule a Strategy Call
Note on Account Migration
Active profile: @drjseifu3003 | Historical/archived work remains at @drjseifu1991.