Amine B

Lead Architect & Full-Stack AI Engineer

Fiverr • Freelance

Sep 2025 - Present • 10 mos

I designed and built a multi-tenant AI appointment-booking platform that automates client conversations, scheduling, confirmations, availability checks, and business rules through AI-powered workflows. The system uses agentic architecture to understand user intent, manage appointment logic, and connect with business operations such as calendars, dashboards, WhatsApp-style messaging, and backend APIs. I designed the architecture around Python, FastAPI, PostgreSQL, Redis, Docker, LangGraph-style orchestration, and observability with Prometheus/Grafana. I also built operational dashboards to monitor appointment flow, system performance, resource usage, drift events, and business KPIs. A major part of the project was balancing AI flexibility with deterministic backend logic, so the system stays reliable when handling real customer interactions. This project gave me strong experience in turning an AI idea into a complete business product: backend, AI workflows, dashboards, data storage, automation, and production reliability.

AI Engineer / Data Scientist

DXC Technology • Período integral

Sep 2025 - Present • 10 mos

I work on production-grade AI systems focused on agentic RAG, document intelligence, workflow automation, and reliable LLM-based applications. My work includes designing AI pipelines that process complex documents, extract structured information, enrich data with metadata, and provide traceable outputs for business and technical users. I built and optimized LangGraph-based orchestration workflows, reducing Time-To-First-Token from 40s to 4s and cutting LLM costs by 85% through parallel guardrails, smarter routing, and lightweight model usage. I also developed MCP-style tool-calling infrastructure supporting HTTP, SSE, and stdio transports, with safe execution patterns such as bounded concurrency, SSRF protection, Redis-backed cancellation, and observability. This role strengthened my ability to build AI systems that are not only intelligent, but also scalable, secure, observable, and practical for real business environments.

Machine Learning Engineer

Fiverr • Freelance

Nov 2024 - Jan 2025 • 2 mos

I delivered custom machine learning solutions for freelance clients who needed predictive models, data preprocessing, automated prediction outputs, and clear documentation. One project involved building an offline match outcome prediction model using historical performance data. I automated data preparation, engineered features such as player statistics, team form, and head-to-head history, then trained and tested ensemble models including Random Forest and XGBoost. The final solution generated predictions with confidence scores and exported results into Excel so the client could use the model without needing technical knowledge. Another project involved developing a Python-based prediction tool with data cleaning, model training, evaluation, and a simple user interface. I used models such as Random Forest, XGBoost, and time-series approaches where appropriate, then delivered the code, documentation, and support so the client could run predictions locally. These freelance projects strengthened my ability to work with non-technical clients, clarify requirements, manage scope, explain model limitations, and deliver usable AI tools instead of just experimental notebooks.