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Dan Raoelinarivo
01 / 03
Software Architect · Backend

Dan

Dan Raoelinarivo

The architect of Hazenfield — and the reason there's a workshop here at all.

Profile

I design the spine of every project we take on — the APIs, the data models, the layers a customer never sees but that quietly decide whether a product lives a year or ten. Comfortable across Python and Node: Odoo, Django, Flask, FastAPI.

Most front-end pain, I've found, is back-end debt wearing a costume. So I hold the line where it's cheapest to hold — type-safety, transactions, tests before features — and the surface stays calm because the structure underneath is sound.

Over the last few years that has meant architecting B2B marketplaces, multi-tenant SaaS, multi-cloud platforms and full ERP estates — from MySpecialist's twenty-odd Odoo modules to Rebound's forty-five, Exiqtive's Postgres row-level multi-tenancy, and Procell's Terraform-managed AWS and GCP estate. I founded Hazenfield to do this kind of work with two people I'd trust with any codebase.

Credential
Independently vetted

Toptal puts every applicant through a multi-stage technical screen and accepts roughly the top 3%. Here's the live badge — the “Hire me” link goes straight to my résumé there.

Stack
OdooDjangoFastAPIFlaskPythonNode.jsPostgreSQLTypeScriptAWSGCPTerraformArchitecture
Selected work

A handful of platforms I architected.

2022 · MYSPECIALIST
B2B marketplace · Odoo platform
MySpecialist

A Belgian SaaS marketplace that pairs customers with vetted independent specialists, across Belgium and Switzerland. Inherited in 2022 as a Symfony tier on Odoo 8 — rebuilt as clean Django on Odoo 16, and run by the same three engineers ever since.

Odoo 16PeppolBE · CH
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2023 · EXIQTIVE
Workforce-management SaaS · CTO engagement
Exiqtive

A multi-tenant workforce-management SaaS — Django + DRF backend, React frontend, Terraform-managed AWS. We've held the CTO chair since 2023, architecting all three layers and growing the engineering team into the system as it scaled.

Django + DRFMulti-tenantAWS
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2023 · PROCELL
Multi-cloud platform · Odoo 18 + AWS + GCP
Procell Therapies

A multi-stack platform for a US aesthetics and treatments company — an Odoo 18 ERP, a Next.js website on AWS, Lambdas for UPS shipment tracking and link verification, GCP Cloud Run services for OpenAI verification pipelines. We own the seams: the AWS Terraform estate, the serverless integrations, and the QA load testing.

AWS LambdaTerraformOdoo 18
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2024 · REBOUND
Odoo 19 platform · live in production
Rebound Technologies

An Odoo 19 platform that runs the company end to end — sales, CRM, HR, projects, treatment, cashflow, GAAP audit. Forty-odd custom modules, a nightly Playwright regression on AWS, and the first project where the three of us hold distinct seats: Dan on architecture and DevOps, Dina on Odoo modules, Hasina on test automation.

Odoo 19PlaywrightAWS
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2025 · ECA
Church platform · Odoo 19 + Vue + Flask + Nuxt + Expo
English Chapel Antananarivo

A five-surface platform we built for our own congregation — an Odoo 19 administrative board with the Madagascar accounting localisation we had to ship to make it work, a public Vue 3 website, a Flask + Nuxt 3 cockpit for the worship team, and an Expo companion app for the congregation. Five stacks, one community, made with gratitude.

Odoo 19l10n MadagascarFive surfaces
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Have a hard backend problem? I'd like to hear about it.

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