Portfolio

Agent orchestration platform with weighted routing, cost governance, observability, prompt versioning, and eval-driven development. This is the best systems-depth repo in the portfolio.

YAML-driven workflow automation backend with async job processing and SSE streaming. This is the cleanest FastAPI-first backend proof in the portfolio for AI backend and integration roles.

Real-time voice AI with WebSocket audio streaming, voice activity detection, Deepgram STT/TTS, and barge-in support. Strong proof for streaming and latency-sensitive AI applications.

Clear planning, tool use, retrieval, and conditional routing in a live demo that also runs offline with MockLLM support. Strong supporting proof for orchestration concepts.

Upwork job scanner with 105-point scoring rubric, 4-agent proposal pipeline, prompt injection testing suite (60+ patterns), LinkedIn outreach engine.

Upload CSV/Excel for auto-profiling, interactive dashboards, marketing attribution (4 models), anomaly detection (Z-score/IQR), predictive modeling with SHAP, time-series forecasting, K-means/DBSCAN clustering, feature engineering lab, model observatory (5 models), hyperparameter tuning, statistical testing, KPI framework, dimensionality reduction, advanced anomaly detection, and regression diagnostics.

25-page interactive finance dashboard answering 17 business questions: credit risk modeling (SHAP/RF), stress testing (CCAR/DFAST), VaR analysis, A/B testing, fair lending geography (real CFPB HMDA data), causal inference, and more. Delivered as dashboard, 8-tab Excel workbook, 11 SQL query templates, 15 Jupyter notebooks, and written business memos. dbt analytics layer (DuckDB + Snowflake).

Customer retention and delivery performance analysis on 100K+ real orders from a Brazilian e-commerce marketplace. Key findings: 93% of customers never return (vs 25-30% industry benchmark), late deliveries cost 1.2 review points, K-Means segmentation surfaces 4 actionable customer segments. Delivered as 10 SQL queries, EDA + segmentation notebooks, interactive dashboard, and written business memo.

Upload PDFs/DOCX, ask questions, get cited answers. Hybrid retrieval (BM25 + vectors), cross-encoder re-ranker, query expansion, retrieval evaluation (MRR, NDCG@K), 5 chunking strategies with comparison, citation quality scoring, redundancy detection, RAGAS-style evaluation, conversation manager, document graph, batch processing, JSON/CSV export.

Enterprise-grade retrieval-augmented generation with hybrid search (BM25 + dense vectors), reciprocal rank fusion, ChromaDB vector store, FastAPI REST API with health/metrics endpoints, and Grafana observability. Designed for principal AI engineer portfolio demonstration.

Production-grade DAG orchestrator with topological sort, retry/backoff, graceful degradation, BaseAgent ABC with Pydantic validation, ASCII monitoring dashboard.

YAML-configurable web scrapers, competitor SEO analysis with gap detection, asyncio scheduler with change callbacks, backlink estimation, data validation rules engine, diff visualization, keyword extraction (TF-IDF n-grams), content scoring, data quality profiler, content intelligence, and data pipeline.

8 built-in prompt patterns (CoT, few-shot, RAG, decomposition), TF-IDF evaluation (faithfulness, relevance, completeness), z-test A/B comparison with statistical significance, reproducible benchmark runner, 7 business categories with 35 sample tasks. Prompt evaluator with ROUGE and semantic similarity, prompt versioning, and safety checker.

Copy-pasteable LLM recipes: completion with FastAPI endpoint factory, SSE streaming, function calling with 3 demo tools, TF-IDF RAG pipeline, circuit breaker + retry hardening, per-request cost tracking, P50/P95/P99 latency measurement. Guardrails engine with injection detection, PII redaction, observability, and batch processor.

Full-stack AI dashboard with real-time metrics, chat interface, and document processing UI. Dark-mode design with Recharts analytics, shadcn/ui components, and responsive layout.

YAML-driven GHL bot framework supporting real estate, home services, and legal verticals. Configurable question flows, multi-vertical prompt templates, and GoHighLevel CRM integration.

YAML-defined async workflow engine with SSE progress streaming and 3 built-in example workflows. Background task queue with ARQ, real-time status updates, and webhook notifications.

Real-time voice AI pipeline: OGG to FFmpeg to VAD to STT to Claude to TTS, with sub-3s round-trip latency. WebSocket streaming, Silero-ONNX voice activity detection, Deepgram speech-to-text.

Drop-in AI chat widget with a single script tag. Full SaaS product: FastAPI + pgvector + RAG + WebSocket + Supabase JWT auth + Stripe billing. Shadow DOM isolation, streaming responses, Next.js admin dashboard. Live demo with no account required.

Production-ready Next.js 15 SaaS boilerplate with Supabase auth, Stripe billing, TypeScript, and Tailwind. Lazy Stripe initialization for edge-compatible builds.

Document extraction API with async job processing, hybrid retrieval, and evaluation gates. Included here as secondary proof because it is already featured higher on the page.

Knowledge graph-enhanced RAG system. Entity extraction (spaCy + Claude), NetworkX graph traversal, BM25 + graph fusion retrieval, fact-checking, side-by-side comparison: Basic vs GraphRAG.