Scalian

Scalian is a French engineering consulting firm founded in 1989, employing roughly 6,000 professionals across 12 countries. Its work sits at the intersection of business processes and digital technologies, with three core lines: Systems and Software Engineering, Operations Excellence, and Digital Solutions. The company operates across sectors where cyber risk is structural - aerospace, defense, energy, financial services, and mobility - domains where a software flaw or a compromised supply chain isn't an abstract concern but an operational threat with real-world consequences. The technical surface is broad: critical software development, systems engineering, AI transformation, and data. That means security-relevant work spans embedded systems, operational technology stacks, and AI pipelines - not just perimeter defense. Scalian's Center of Excellence in Artificial Intelligence, backed by over eight years of investment, suggests a team dealing with the attack surfaces that come with ML model deployment, data integrity, and adversarial inputs at scale. Career paths are organized by business line and specialist communities, with a culture that emphasizes curiosity, initiative, and skill broadening. ESG sits explicitly in the company's strategic framing. For security practitioners, the draw is scope: you're not patching one product - you're working across industries where the threat model includes nation-state actors, safety-critical systems, and complex digital transformation programs.