Local LLM Chat Engine
Modular Python RAG backend with ingestion, optional embeddings/FAISS retrieval, TF-IDF snapshots, API/CLI access, and local or hosted model adapters.
- FastAPI
- RAG
- Python
Reza Ghalavand
Applied AI Engineer
LLM Systems · RAG · Agents · Evaluation · Python · AI Infrastructure
Applied AI Engineer building LLM applications, retrieval pipelines, and agent governance tools in Python. I bring 15+ years of software, backend, and database experience to making AI systems testable, maintainable, and ready for operational scrutiny.
Selected projects
Open-source work
A portfolio focused on pragmatic AI engineering, governance, and enterprise backend systems.
LangGraph Governance Lab
FastAPI service evaluating agent traces against tool, approval, model, and budget policies. Deterministic findings with optional LLM remediation advice.
- Python
- FastAPI
- Policy evaluation
AI Systems Notes
Versioned engineering handbook covering LLM architecture, retrieval, evaluation, security, and operations. Reference patterns are distinguished from runtime implementations.
- MkDocs
- Python
- AI Systems
Current focus
What I am building and improving
My projects expose architecture, implementation status, and limitations so you can inspect the engineering decisions.
LLM services with explicit operational boundaries
Inspect the project explorer for implementation evidence, design trade-offs, and remaining work.
Agent governance, safety controls, and evaluation workflows
Inspect the project explorer for implementation evidence, design trade-offs, and remaining work.
LLM and RAG integration patterns for backend systems
Inspect the project explorer for implementation evidence, design trade-offs, and remaining work.
Reliable APIs, observability, and operational excellence
Inspect the project explorer for implementation evidence, design trade-offs, and remaining work.
Independent research · Number theory
Goldbach & the geometry of primes
An open research notebook developed with ChatGPT Codex. Follow exact finite certificates, averaged operator bounds, and the latest work on prime correlations.
Recent writing
AI architecture and engineering notes
Writing focused on architecture trade-offs, AI integration patterns, and operational reliability.
Nov 05, 2026 · 6 min read
When an AI Agent’s Context Goes Stale
How to design AI workflows that notice when records, policies, or approvals have changed between planning and execution.
- agentic-ai
- reliability
- governance
- software-architecture
Oct 27, 2026 · 6 min read
Designing Deadline and Ownership Contracts for Python I/O
An evidence-backed case study of threaded cancellation, shared receive deadlines, bounded retries, and resource ownership through cleanup.
- python
- reliability
- backend-engineering
Oct 17, 2026 · 6 min read
The Last Mile of Agent Reliability: Knowing When the Work Is Done
A practical design perspective on completion evidence, ambiguous outcomes, and safe recovery in AI workflows that change external systems.
- agentic-ai
- reliability
- backend-engineering
- governance
Professional experience
Career highlights
A condensed timeline from resume responsibilities across enterprise systems and software delivery.
Senior IT Systems Engineer
Esfahan Regional Electric Company | 2025-Present
- Support enterprise IT systems, backend infrastructure, automation initiatives, and mission-critical software operations.
Senior Software Programmer
Yeganeh Computer Center | 2010-2025
- Developed enterprise backend features.
- Optimized SQL Server performance and modernized legacy codebases.
- Created technical documentation and automated business processes using Python.
Remote Technical Support, DBA and AI Automation Developer
Darya System (Remote) | 2022-Present
- Provided ERP support and administered SQL Server environments.
- Built Python automation tools and improved reporting and operational workflows.