Curriculum vitae

Giovanni Beijl · Alphen aan den Rijn, Netherlands · hi@giovanni.pw

Summary

Senior Backend / AI Platform Engineer with roughly eight years of experience building production systems: developer platforms, deployment infrastructure, multi-tenant APIs, identity integrations, and AI infrastructure. Designed and built a multi-tenant AI assistant platform with RAG, ingestion, model training workflows, and OpenAI-compatible endpoints. Previously co-built a developer cloud platform used by 1,000+ users and 10,000+ deployments, later acquired.

Tech stack

Languages

PHP, TypeScript, JavaScript, Python

Backend

Node.js, API design, multi-tenant architecture, queueing systems, system architecture

AI / RAG

RAG, document ingestion, embeddings, model adapters, QLoRA / LoRA workflows, OpenAI-compatible APIs

Frontend

React, Vue, internal tooling, admin interfaces, data visualization

Databases

PostgreSQL, MySQL, MariaDB, ClickHouse

Infrastructure

Docker, LXC / LXD, Kubernetes, CI/CD, deployment pipelines, server migrations

Domains

Platform engineering, DevOps, AI tooling, financial analytics, identity / SSO, developer platforms

Experience

Selected impact

• Designed and built a multi-tenant AI assistant platform covering RAG, ingestion, assistant configuration, model training workflows, and OpenAI-compatible APIs
• Built AI-powered financial analytics for an enterprise client, enabling natural-language financial analysis and automated chart generation
• Built and operated developer platforms used by 1,000+ users and 10,000+ deployments
• Took a bootstrapped developer platform from concept to acquisition, as one of three engineers
• Delivered regulated identity and public-sector integrations involving OIDC, SOAP, mutual TLS, and XML signatures

Strengths

• Builds complex systems from concept to production with minimal supervision
• Strong backend, infrastructure, DevOps, AI tooling, and platform engineering capability
• Able to turn ambiguous product and business problems into working technical systems
• Comfortable owning critical technical systems in startup and scale-up environments