Hi, I'm Bart Hazen and I'm behind NimbleFlux

Freelance Data Platform & MLOps Engineer

I write about things I learn while building software - engineering, infrastructure, DevOps, AI, and the products I create along the way.

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Multi-tenant architecture diagram showing Main Database with FDW connections to isolated tenant databases, protected by Row Level Security

Multi-Tenancy with postgres_fdw: How Fluxbase Isolates Tenant Data

How I added multi-tenant isolation to Fluxbase using PostgreSQL's Foreign Data Wrapper, Row Level Security, and a hybrid database architecture, without breaking backward compatibility.

FluxbasePostgreSQLArchitecture +1
8 min read Read →
Fluxbase documentation homepage showing features

Introducing Fluxbase

A lightweight, single-binary Backend-as-a-Service. All the essential backend services in one Go binary, with PostgreSQL as the only dependency.

FluxbaseBackendSelf-Hosting +1
5 min read Read →
NimbleFlux logo

Introducing NimbleFlux

A new venture focused on rapid product development, building tools that solve real problems while learning and iterating quickly.

3 min read Read →

Topics I write about

Software Engineering

Languages, architecture patterns, design decisions, and real-world lessons.

Infrastructure

Cloud, databases, networking - the layers that keep things running.

DevOps

CI/CD, observability, incident management, and engineering culture.

Data Engineering

Pipelines, ETL, data modeling, and turning raw data into insights.

AI

Machine learning, LLMs, and exploring how AI is reshaping software development.

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