fren
independent consulting · data and cloud applications

Data and cloud applications for mid-sized and large companies

Framing and taking on broad IT problems: fast delivery, transparent communication, advanced multi-cloud expertise. Engagements are short, with a verifiable deliverable and a written handover, and run just as well with international teams.

book a callsee the engagements

The mark is a switch: two uprights, a movable bar, and the previous position left behind as an ink trace.

01what is on offer

Five ways to engage. Each produces a deliverable an in-house engineer can read, take over and sign off.

build
web apps · analytics · machine learning
Web applications, analytics platforms and machine learning services, from prototype to production on AWS or Azure. Typical duration : 6 months to 1 year.
migrate and modernise
platform migration · legacy code
Cloud platform migration and legacy code takeover. Whatever must keep running through the transition, keeps running. Typical duration : 3 to 6 months.
audit and govern
system audit · data governance
Critical review of a system already in place; data governance set up so that it holds once the engagement ends. Typical duration : 3 months.
hand over and advise
team transition · software delivery · generative ai
Team transition, software delivery improvement, exploration and strategy on emerging technologies including generative AI. Typical duration : 3 to 6 months.
set up an online identity
association · liberal profession · independent
Identity and online presence for a small organisation: the deliverable is the system — tokens, components, written rules — not the pages alone, so the organisation carries on without its supplier. This site is the example.
02recent engagements

Six real clients, sectors and roles.

2026AI agent strategy for the transport divisionUser support on generative AI, agents built on Copilot, tracking of vendor roadmaps.Egis Group2024Three Azure projects across the industrial businessSand detection in pipelines, refinery cost accounting, on-site risk assessment tool.TotalEnergies — Digital Factory2025HR use case on Microsoft FabricImplementation of the use case, training the in-house teams on the chosen architecture.OCDE
all engagements
03products

Three open-source tools meant to make an independent’s life simpler. They belong to no client engagement: separate, open work whose assumptions are shown and editable.

open source · simulator · compensation
SASU

Salary / dividend trade-off for a French SASU, and corporate-tax instalments. The tax assumptions are shown and editable: a scoping tool, not tax advice.

sasu.commutator.io
open source · simulator · wealth
FIRE

Long-term wealth drawdown, calibrated for France and Japan. Two tax regimes inside one model, which makes visible what the jurisdiction actually changes.

fire.commutator.io
open source · model · ai at work
DUTY

What AI actually buys on a task: Amdahl’s law with a review term added. That term is the point of the model — it is what bounds the gain, not the speed of the model.

duty.commutator.io
04who you work with
Michel Hua
independent consultant · cloud data applications
2010Centrale Lille — Mechanical Engineering · Control Engineering · Applied Mathematics
2018MFG Labs, Havas Media Group
2023Artefact
based inParis · engagements in France and remote
technical stack
distributed computeAthena · EMR · Functions App · SQL Server · PostgreSQL · OpenAI · Claude · Snowflake · Bedrock · Fabric · Power BI
languagesPython · SQL · Terraform
cloudAWS · Azure
certifications
Microsoft Certified Solutions ArchitectMicrosoft Certified AI EngineerMicrosoft Certified Data EngineerMicrosoft Certified Analytics EngineerGoogle Cloud Professional Cloud ArchitectGoogle Cloud Professional Data EngineerSnowflake SnowPro CoreHashiCorp Terraform AssociateGitHub ActionsGitHub Administration