Senior Platform Security Engineer: Build Secure Cloud Core

Spendesk in Paris is seeking a senior security engineer to own the technical security roadmap, build tooling, train developers, and partner with Infrastructure on secure‑by‑default solutions. This is an individual contributor role with high influence: you’ll mentor the Associate Security Engineer, drive remediation, and act as the go‑to security...

About MistralMistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems—across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector—co-creating customized AI systems that they can run on their terms.We are...

Mistral is seeking a Platform Security Engineer to architect and maintain the security posture of our rapidly scaling AI infrastructure and lifecycle. You will embed robust controls into CI/CD, cloud environments, and developer workflows to protect systems without slowing velocity.You will shape security integration across the stack, from code to cloud,...

Blockchain.com in Paris seeks a Senior Infrastructure Security Engineer to design, build, and automate security controls across our cloud-based platform and services. You will work with SREs and developers to harden configurations and protect consumer and institutional products.You will lead threat modeling, incident response, and drive secure by default...

As a Platform Security Engineer you will partner with different stakeholders across the organization to secure our infrastructure and application components of the Datadog platform. As part of the Platform Security organization we secure the building blocks of Datadog’s applications and infrastructure. We do this by building solutions solving systemic...

Job Description About the Role Jus Mundi is looking for a full-time Senior Platform & Cloud Engineer to join the team. We want you to be part of a team of passionate people who are always ready to help each other. This position is based in Paris with a very flexible remote working arrangement. In the EPD team (Engineering, Product and Design) department,...

Set a new pulse for healthcare! We are looking for a Platform Security Engineer to join the Security team at Doctolib. Your mission will be to protect sensitive healthcare data while enabling rapid, secure innovation. You will be responsible for securing Doctolib's cloud infrastructure and application ecosystem, combining multi-cloud security expertise with...

Criteo in Paris, France, seeks a Senior Security Product and Application Engineer for a full-time role with a hybrid work model. You will collaborate with Product and Platform teams to design secure systems, drive security-by-design practices, and mentor peers in security excellence.Ideal candidates bring leadership in complex projects, deep expertise in...

Are you a hands-on security professional ready to define what application security looks like in the age of agentic AI? Do you want to work somewhere that treats security as a genuine competitive advantage and a core part of building trustworthy healthcare software? Excited by the challenge of evolving security practice at pace, in an industry where the...