Emplois de security system engineer – Paris

About UsHarmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces.Our work is guided by clear values: building technologies with real-world...

Escape, a fast-growing AI-powered cybersecurity company in Paris, is hiring a Senior Backend Engineer. You will work with security researchers to translate research into production-grade systems, focusing on autonomous scanning, detection logic, and scalable infrastructure.Join a mission-driven team and contribute to architecture decisions while deploying...

Sonio is building real-time fetal ultrasound software solutions. You will enhance data ingestion pipelines, integrate with ultrasound devices and EHRs, and contribute to scalable cloud-edge systems that operate near real-time.The ideal candidate has 8-10 years of software engineering experience with strong system design, and is comfortable traveling to the...

Mistral is seeking a Research Engineer to join the newly forming Search and Services Platform team. You will build and operate large-scale search infrastructure for models, from self-hosted Vespa clusters to knowledge graphs and databases served through MCP.You’ll collaborate with researchers across data platform teams to ensure reliability, scalability,...

Snap Inc. is seeking a Software Engineer for our Brain-Computer Interface team in Paris. You will join a small, cross-disciplinary group building software for wearable devices, with a focus on real-time data acquisition and ML inference.Based in our Paris office (9th arrondissement), you will collaborate with hardware, ML, and software teams worldwide. The...

Fortinet is seeking a Systems Engineer in Paris to partner with sales on delivering multi-technology, multi-phase deployments for top enterprise accounts. The role focuses on project management, technical leadership, and delivering professional services aligned with client requirements.You will collaborate with sales to ensure successful outcomes and drive...

If you dream of being a spy, but you don’t like Martinis .... Your place is with us! We are expanding our cybersecurity teams to take on space projects in Paris. We´ll get to the point; we'll tell you what's not on the web.If you want to know more about deGMV WHAT CHALLENGE WILL YOU BE TAKING ON? In this role, you will contribute to the administration,...

About the workMercor is assembling a panel of energetic materials and propulsion experts to red-team frontier AI models. The goal is to test whether a model can correctly judge the misuse potential of a technical request — answering legitimate questions fully while refusing genuinely dangerous ones.You will:Write challenging single-turn prompts in your...

Lemrock is building the infrastructure of agentic commerce, turning raw signals into automated, self-improving systems at production scale. You will analyze large-scale conversational data, design end-to-end agentic pipelines, and build autonomous agents that keep knowledge accurate and current.You will translate insights into production improvements for our...

Genesis in Paris, France is seeking a senior ML infrastructure engineer to accelerate large-scale foundation model training by profiling and eliminating bottlenecks across the stack, from data pipelines to GPU kernels.You will design, build, and optimize distributed training systems (PyTorch) for multi-node GPU clusters, focusing on scalability, robustness,...

Systems Engineer Location: Paris, France Role Overview: Join Fortinet, a cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard people, devices, and data everywhere. We are currently seeking a Systems...

Descriptif du poste Our client is an innovative and fast-growing technology company developing advanced optical communication and photonics-based systems for highly demanding applications. As part of the growth of its engineering activities, we are looking for an Electrical Engineer, Space and Defence FSO Systems. Reporting to the R&D and Engineering teams,...

Front is seeking a Senior Design Engineer to bridge design and engineering. You’ll work with a mature design surface, a rich Figma library, and a large production codebase to turn design systems into living, production-quality tooling.You’ll own the system across Figma, Storybook, and production code, build reusable UI components, and partner with...

Kyber, an open-source SDK and platform developer based in the Paris area, seeks a senior network software engineer to design and optimize critical components and address performance and security concerns. You will debug at kernel and user levels, write solid documentation, and participate in architecture reviews.The role emphasizes cross‑platform work...

We're looking for a Product Engineer, Backend (Rust) to join White Circle, an AI Safety company building the policy enforcement and optimization layer for AI systems. Backed by $11M from senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, and DeepMind, White Circle processes 100M+ API calls monthly and runs its own LLMs in production.You willDesign...

Role Overview:Join Fortinet, a cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard people, devices, and data everywhere. We are currently seeking a Systems Engineer to contribute to the success of our...

A European space tech company in Paris is recruiting a Fluid System Development Engineer to join their team. The role involves developing and testing fluid systems for propulsion in various launch vehicles. Candidates should have a Master's degree in mechanical, aeronautics, or space engineering, along with at least 4 years of experience in propulsion system...

Systems Engineer Public - North East territory, FranceJob InfoJob Identification 23955Job Category Systems EngineeringPosting Date 08/28/2026, 10:18 PMLocations Strasbourg, Bas-Rhin, FranceJob Schedule Full timeJob DescriptionSystems Engineer, Public SectorNorth East Territory, FranceRole Overview:Join Fortinet, a cybersecurity pioneer with over two decades...

Set a new pulse for healthcare!We are looking for a Senior Machine Learning Engineer to join the Orchestration team in AI Health Assistant.Your mission will be to ensure our AI Health Companion behaves safely, reliably, and helpfully — for millions of patients and practitioners. You will work in a cross-functional team building robust evaluation pipelines...

Shift delivers AI agents that transform insurers’ most critical work. By combining deep industry expertise and unmatched data resources, Shift provides proven results that have earned the trust of hundreds of the world’s leading insurers. Our insurance-grade AI is accurate, explainable, and secure—empowering human experts to move with unmatched speed,...