We spent twenty years doing the work by hand.
Laier was founded in 2026 in Paris by three operators of the trade. Agency, advertiser, engineering. Forty-plus combined years across media, advertising and tech.
We built the tool we missed all those years. And we know exactly where the time gets lost. Everyone looks at performance after the fact; almost no one pilots it continuously. Laier exists to reverse that: a system that turns every signal into a better decision, every day, on every account. And answers for every one of its promises.
Three operators, not three LinkedIn profiles.
Salem Handoura
President & co-founder
Former deputy CEO of the Heroiks group. Twenty years of paid media agency-side.
Romain Darrieus
COO & co-founder
Twelve years at Heroiks, former Head of Digital. He designed Laier's analysis tools.
Sameh Mohamed
CTO & co-founder
Engineer, École polytechnique graduate. He runs the platform, the data and the models.
What we believe
The decision stays human
Laier observes, calculates and proposes. It never decides for you. Enforced in code, not promised in a brochure.
Proof before promise
Every decision gets a dated verdict at D+14, measured on the accounts. Never estimated. A move that changed nothing says so.
Calm is a deliverable
What doesn't deserve your attention doesn't appear. “All quiet everywhere else” is a sentence the product knows how to say.
Come build with us
We're hiring across tech and sales. And spontaneous applications are welcome.