Ali El Hariri — Founder of Mister ConTech
About · Ali El Hariri

20 years at the intersection of construction and tech.

The same person, inside the structures that matter. When you work with Mister ConTech, you're not working with a brand — you're working with someone who has done the job.

The common thread

Ali El Hariri.

From the field to tech, then from tech to AI — always in construction.

Background · major group
Bouygues

The field, the large accounts. Understanding the worksite from the inside, from scheduling to contracts.

Y Combinator · 2016
Bulldozair

Co-founder and CEO. Construction project management software, deployed on the ground, which went through Y Combinator.

Acquisition
Mezzoteam

Acquired by Mezzoteam (Infopro Digital). Proof that we can build something serious and see it through.

2026 →
Mister ConTech

AI applied to construction, through advisory & enablement. A collective of practitioners built around this expertise.

Alongside this, Ali also invests in early-stage startups — particularly in ConTech, at the intersection of construction and tech. A way of staying close to what's being invented in the sector.

The journey, in detail
Childhood · Morocco

Architect's son

Construction was first and foremost a family story. The worksites, the drawings, the technical conversations: daily life. The trade before the theory.

2005

Graduated from ESTP Paris

Engineering degree in building. The technical foundation that structures everything that follows.

Until 2012

Ten years at Bouygues Construction

From the field to head office, from execution to management. Bouygues Immobilier head office in Issy-les-Moulineaux, the Beaugrenelle shopping centre, the Chanel head office in Neuilly, the Yvette clinic in Longjumeau. Understanding the worksite from the inside: scheduling, contracts, large accounts.

2012

Co-founding Bulldozair

The idea was born on a worksite: why is construction management still on paper and in Excel? Co-founder and CEO of software deployed on the ground, in construction.

2016

Y Combinator (Summer 2016) — San Francisco

Bulldozair joined Y Combinator, the benchmark accelerator program in San Francisco. Fundraising, international expansion, team building.

2024

Acquired by Mezzoteam (Infopro Digital)

Bulldozair joined Mezzoteam (Infopro Digital). Proof that we can build something serious and see it through. This was followed by a period of commercial and international development of the platform.

2026 →

Founding Mister ConTech

Construction needs AI — but not generic AI. AI that understands the trade. Advisory & enablement, work package by work package, all the way to team autonomy.

Why Mister ConTech

In 20 years, I've seen the same pattern repeat itself.

Brilliant engineers spending their evenings rewriting meeting minutes. Cost estimators reading 150 pages of technical specifications (CCTP) by hand. Technical bids (mémoires techniques) written under pressure, the night before the deadline.

AI can handle a large part of this thankless work — provided it speaks the trade. And that's exactly where most offerings fall down: they know AI, not construction. Or the other way around.

Mister ConTech is the opposite of the tool that's imposed on you. We start from your documents, your processes, your way of working — and we install AI inside them, work package by work package, until your teams are autonomous.

My goal hasn't changed since the start: that it concretely changes people's daily lives. Not a transformation slide. A set of meeting minutes that gets written in three minutes instead of an hour.

People who've worked with him

What people say about Ali.

Executives, peers and mentors who have worked with him — excerpts from their public recommendations.

Coming from the trade itself, Ali has an intimate knowledge of the realities of the field. […] A construction expert who combines trade knowledge, innovation and leadership.
Thomas Le DiouronEntrepreneurship & industry transformation
Genuine technical expertise paired with a human, collaborative approach in complex environments. […] I recommend him without hesitation.
Geoffroy BoulardMayor of the 17th arrondissement of Paris
A passionate entrepreneur, an expert in digital and in construction. […] He always finds innovative solutions. A man you can trust, whose word is his bond.
Eric CombeauDigitalisation of construction · ConTech

Public LinkedIn recommendations · Ali's background (Bulldozair, went through Y Combinator).

The collective

We move forward as a team.

Depending on the need, an engagement brings in a technical partner and a trainer. So the result never depends on a single person. The expertise stays the same, the capacity to deliver grows.

Trainers

To pass it on to your teams and make them autonomous on every work package.

Technical partners

For the deeper work packages: automations, bespoke building blocks, integrations with your tools.

Domain experts

To stay close to the realities of each segment of construction, from the engineering firm to property management.

Let's talk about your trade, not AI in general.

30 minutes, live, to see what applies to you.

Book a call →