Senior System Engineer - Paris - H/F

Join our dynamic team at myjobcompany1 as a Lead Systems Engineer in Paris! In this pivotal role, you will lead the design, development, and implementation of innovative systems solutions that enhance operational efficiency. Collaborate with cross-functional teams to ensure project success and drive technological advancements.

Join BlaBlaCar as a Senior System and Network EngineerBlaBlaCar, the world's foremost community-driven travel application, connects 27 million members annually for carpooling and bus travel across 21 countries. With a diverse team of 800 professionals from over 50 nationalities, we operate from five global offices, with 30% of our workforce thriving in fully remote roles.Your RoleAs a Senior System and Network Engineer within our IT Operations team, you will be instrumental in delivering robust IT services and solutions throughout our organization, ensuring efficiency and security. Your expertise will help streamline our network and software solutions, empowering our team members to perform at their best. You will work in close collaboration with both the Security and Engineering teams to uphold the integrity, availability, and reliability of our IT infrastructure.Reporting directly to Henry Marinho Faiacida, our IT Operations Manager, you will join a skilled team of six, comprising three IT Engineers and three Tech Support Experts.Key ResponsibilitiesIn this role, you will serve as a vital resource for knowledge, best practices, and the execution of technological innovations. Your main responsibilities will include:• Leading IT projects from inception to completion in collaboration with various engineering teams.• Setting up, administering, and maintaining IT SaaS systems and applications.• Reviewing and optimizing SSO workflows within SaaS platforms to ensure peak performance.• Keeping our infrastructure current by implementing security policies, patches, and necessary updates.• Partnering with the Security team to enforce security policies, permissions, and procedures.• Ensuring compliance across all hardware, including networking equipment, computers, IoT devices, and printers.• Taking responsibility for L2/L3 support troubleshooting within the IT Operations domain.• Communicating effectively with internal departments and stakeholders.Scope of Work:• Overseeing users' technical working environment across various development departments.

Join Alten, a leader in technology consulting and engineering, as an ADAS Systems Engineer (H/F) in Paris. You will play a pivotal role in the development of advanced driver-assistance systems, ensuring cutting-edge innovations in automotive safety and performance.

Join Alten as a Linux System Engineer in Paris, where you will be at the forefront of technology, driving innovations in system architecture and operations. This role requires a passion for Linux systems and a desire to work in a collaborative environment.You will be responsible for designing, implementing, and maintaining Linux-based systems to ensure optimal performance and security. Collaborate with cross-functional teams to identify and resolve system issues, implement automation solutions, and enhance overall system efficiency.

Join the Innovators at AragoArago is a pioneering company at the forefront of artificial intelligence and semiconductor technology, dedicated to advancing the future through groundbreaking innovations.Established in 2024 by a team of visionary AI researchers and physicists, Arago harnesses expertise in photonics, electronics, software, mathematics, and machine learning. Our nimble team consists of talented engineers and scientists from leading global institutions.With a multicultural team representing nine nationalities, we operate from key hubs in France, North America, and Israel. We are passionate about exceptional science and rapid progress, guided by principles that define our culture:Deliver Excellence: We take pride in our work, ensuring it meets the highest standards.Speed of Execution: We value quick, decisive actions, progressing efficiently to achieve our goals.Collaborative Spirit: We work as one cohesive unit, fostering relationships built on trust and respect.Supported by leaders from major tech companies such as Apple, Arm, Nvidia, Microsoft, and Hugging Face, along with esteemed venture firms, Arago is poised to redefine the future of technology.

Join Contentsquare as a Software Engineer focused on streaming and data-intensive systems. In this role, you will design and implement high-performance solutions that handle large data flows, ensuring scalability and reliability. Collaborate with cross-functional teams to drive innovation and enhance our data processing capabilities.

Arago operates at the intersection of artificial intelligence and semiconductor technology, drawing on the expertise of AI researchers, physicists, and engineers. With a multicultural team from nine countries and offices in France, North America, and Israel, the company brings together experience in photonics, electronics, software, mathematics, and machine learning. Arago is supported by industry leaders and investors from organizations such as Apple, Arm, Nvidia, Microsoft, and Hugging Face. The Paris-based System Administrator and Infrastructure Engineer ensures that Arago's technical environment remains reliable and scalable. This position supports both daily IT operations and larger infrastructure projects, working closely with the engineering team to enable rapid progress and high-quality results. Main responsibilities Cloud Prototyping: Maintain and monitor the Beta Cloud Service so external partners can access prototype technology. Hardware Acquisition: Source and install new hardware, including storage solutions, high-performance computing systems, and networking equipment. System Monitoring: Design and maintain monitoring systems for all internal servers and services, aiming for 99.9% uptime. Tooling Initiatives: Lead projects to develop internal tools that improve engineering productivity. Onboarding Process: Oversee IT onboarding by provisioning workstations and laptops (macOS, Windows, Linux) and automating account management. Live Support: Provide helpdesk support during working hours for both the Arcueil office and remote teams. Work environment Based in Arago's Paris offices Collaborate with a diverse, international team Support a culture focused on quality, rapid progress, and close teamwork

Join Safran AI as a Linux Systems Engineer where you will be at the forefront of designing, implementing, and maintaining dynamic Linux systems solutions. You will work with a talented team to ensure robust and scalable environments that support our innovative projects.

Join Voodoo as a Lead Cloud Infrastructure EngineerFounded in 2013, Voodoo is a dynamic technology company dedicated to crafting engaging mobile games and applications that entertain users globally. With a robust workforce of 800 employees, we have achieved a staggering 7 billion downloads and boast over 200 million active users, positioning us as the #3 mobile publisher worldwide, trailing only Google and Meta. Our impressive portfolio features hit games such as Mob Control and Block Jam, as well as trending applications like BeReal and Wizz.The Engineering & Data team is at the forefront of creating innovative technology products and platforms that drive the remarkable growth of our gaming and consumer applications, ensuring Voodoo remains a leader in the mobile gaming sector.Your RoleWe are seeking a passionate Lead Cloud Infrastructure Engineer eager to contribute to something greater! In this pivotal role, you will develop highly scalable solutions utilized by millions, guiding the technical roadmap while tackling complex challenges related to scalability, high availability, performance, optimization, and automation. You will be an advocate for adopting cutting-edge services and technologies, significantly influencing the future direction of our technical stack.This position requires you to work onsite three days a week in Paris.Key ResponsibilitiesDefine and lead the architecture for availability, scalability, and performance of service environments, establishing standards for the team.Continuously evaluate existing infrastructure to ensure optimal performance, availability, and security, while formulating a long-term strategy.Develop advanced security capabilities and spearhead the implementation of security best practices across the company through advocacy and training.Lead automation strategies for infrastructure deployment and configuration, creating and standardizing CI/CD pipelines for applications, and promoting best practices throughout the engineering organization.Execute development, automation, and deployment tasks as a subject matter expert and primary escalation point.Provide hands-on leadership in application development and cloud technology, offering mentorship and support to team members.Manage costs, anticipate infrastructure needs, and propose and implement new solutions in collaboration with development teams.

We are seeking a motivated and enthusiastic Junior Systems Engineer / DevOps to join our dynamic team at myjobcompany1 in Paris. This entry-level position offers a fantastic opportunity to develop your skills in systems engineering and DevOps practices while contributing to exciting projects.You will work alongside experienced engineers to maintain and improve our cloud infrastructure, automate deployments, and ensure system reliability. If you have a passion for technology and a desire to learn, we want to hear from you!

We are seeking a skilled Linux Systems and Network Engineer to join our dynamic team in Paris. This role offers an exciting opportunity to work with cutting-edge technologies in a collaborative environment. You will be responsible for the design, implementation, and maintenance of Linux-based systems and networks, ensuring optimal performance and security.Key responsibilities include troubleshooting system issues, managing server configurations, and implementing network solutions. If you are passionate about technology and eager to contribute to innovative projects, we would love to hear from you!

Safran.AI, a subsidiary of Safran Electronics & Defense, develops artificial intelligence solutions for analyzing high-resolution satellite imagery, video streams, and acoustic signals. The team’s work supports aerospace, defense, and government clients, and now also addresses Industry 4.0 challenges, such as anomaly detection in critical components using digital imagery. Since 2016, Safran.AI has delivered complex algorithms and software for automatic detection and identification of military-relevant objects, drawing on both commercial and government data sources. The company values innovation, safety, and technical excellence, fostering a collaborative environment where creative ideas are encouraged. The Senior Linux Systems Engineer (F/H) is part of the Customer Solution Services division within the Solution & Service Line department. This position is based in Paris and focuses on the deployment, operation, and ongoing maintenance of Safran.AI’s products for clients throughout the contract lifecycle. What you will do Design, implement, validate, and maintain deployment automation for Safran.AI products. Ensure product instances remain updated and fully operational in client environments. Analyze client information system constraints and propose technical solutions in areas including virtualization, storage, networking, firewalls, and data pipelines. Collaborate with client experts to integrate Safran.AI products into their information systems. Work environment Located in Paris, this role involves working alongside experienced teams dedicated to technological excellence and real-world impact in critical sectors.

Vizzia provides hardware solutions, including cameras, stations, and accessories, to over 250 local authorities, with plans to reach 450 by the end of 2026. The company is expanding both its technical capabilities and its market presence, following a recent €30M Series B funding round. This growth brings new challenges in delivering reliable, industrial-grade products at scale. The Hardware R&D team at Vizzia covers electronics, mechanics, and firmware. The Lead Hardware Engineer will play a central role in shaping system architecture, setting technical standards, and ensuring that lab innovations become robust products in the field. This position works closely with David, Head of Hardware, and the Paris-based hardware team. Main responsibilities Architecture and Technical Decisions Oversee system architecture across electronics, mechanics, and firmware, balancing performance, cost, and maintainability. Guide technical decisions in high-speed design and embedded systems, providing clear rationales for choices. Anticipate requirements for EMC, CE, and NDAA certifications from the start of each project. Strive for simplicity in design, removing unnecessary complexity. Industrialization and Quality Integrate Design for Manufacturing (DFM) and Design for Test (DFT) constraints early in the process. Develop and enforce validation plans that go beyond lab testing, including functional, environmental, EMC, and field tests. Prepare thorough industrial documentation for production, such as BOM, Gerber files, test reports, and procedures. Manage BOM costs and secure key components by establishing dual sourcing strategies. Lead go/no-go reviews before each hardware release and make final decisions. Technical Standards and Team Development Set and uphold high engineering standards for the hardware team, including documentation, validation, design reviews, and best practices. Serve as a technical reference for junior and mid-level engineers, supporting them in solving complex challenges.

About Mistral AI Mistral AI builds high-performance, open, and efficient AI systems designed for the next wave of applications. The team develops and operates advanced infrastructure that connects large-scale distributed systems, cloud platforms, and high-performance computing (HPC) environments. This backbone supports both research and production workloads at scale. The company values collaboration and a low-ego approach, bringing together skilled professionals across Europe, the United States, and other regions. As Mistral AI grows, the team is establishing core infrastructure to support thousands of nodes and systems handling petabytes of data. Learn more about the team and company culture at https://mistral.ai/careers.

About UsAt Harmattan AI, we are pioneering the development of autonomous and scalable defense systems. With a recent $200 million Series B funding round that has raised our valuation to $1.4 billion, we are poised for growth and are seeking talented individuals to join our mission of delivering cutting-edge systems to allied forces.Our guiding principles are centered around creating impactful technologies, striving for excellence, setting ambitious objectives, and confronting complex technical challenges head-on. We thrive in a dynamic environment where accountability, precision, and execution are critical.About the RoleWe invite a passionate Backend Software Engineer to become a vital part of our C2 Core team in Paris. In this role, you will be instrumental in developing the foundational architecture for our advanced tactical Command and Control (C2) application. You will operate in a high-stakes, technical environment where low latency, high availability, and secure data management are crucial.Your primary responsibilities will involve ensuring seamless data flow for real-time telemetry, high-bandwidth video streams, and mission commands between our fleet of robots and the internal C2 components, including the Common Operational Picture (COP) and Mission Planner. This system is designed for deployment on ruggedized tactical PCs in field environments often characterized by limited network connectivity.

Labelium seeks a Lead Analytics Engineer to drive its analytics initiatives in Paris. This role plays a central part in shaping how the company uses data to support decisions across the organization. Key responsibilities Oversee analytics projects from initial design through to full implementation Collaborate with teams across the business to deliver advanced analytics solutions Ensure that strategies and recommendations are grounded in strong data insights Location This position is based in Paris.

Join our cutting-edge team at iliad-free as a Network Core Systems Engineer in Paris. We are looking for a talented and motivated individual to help us design, implement, and optimize our core network systems. As part of our dynamic Réseaux & Telecom department, you will play a crucial role in ensuring the reliability and performance of our network infrastructure.

Join our innovative team that is reshaping the future of global living.At The Flex, we envision a world where renting a home is instant, intelligent, and effortless — as seamless as booking a ride. Our ambitious goal is to enable anyone to live anywhere, anytime, without friction.Utilizing Base360.ai, our proprietary automation engine, we’re constructing the operating system for modern renting — integrating property data, orchestrating operations, and facilitating seamless stays across continents.If you are passionate about technical ownership, system architecture, and building platforms that function at real-world scale, this role places you at the heart of how millions of people move, live, and interact with the world.

Role Overview Theodo is seeking a Lead Software Engineer to guide the development of healthtech solutions in Paris. This role involves leading a skilled team and setting the direction for projects that impact healthcare delivery. What You Will Do Lead a team of engineers focused on building scalable software for the health sector Shape project goals and technical approaches Oversee the delivery of reliable, high-quality applications Location This position is based in Paris.