Senior Linux Systems Administrator at Ubisoft | Paris

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

About Air Apps Air Apps is a family-founded company focused on building the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since starting in Lisbon in 2018, the team has grown to offices in Lisbon and San Francisco, reaching over 100 million downloads worldwide without external funding. The company’s mission centers on challenging conventions and creating AI-driven solutions that make a real difference in how people plan, work, and live. Employees play a direct role in shaping products that empower users across the globe. Role Overview: Systems Administrator (Paris) The Systems Administrator manages and maintains Air Apps’ corporate IT infrastructure, user access, and SaaS tools to keep operations secure and efficient. This role covers device management, network security, access controls, and hands-on IT support for staff. Strong technical knowledge of IT systems, cloud platforms, and security practices is essential to help scale and improve internal operations. Location and Work Arrangement This is a fully onsite role based in the Paris office. Collaboration with cross-functional teams is frequent. Relocation support is available for candidates moving to Paris.

About UsHarmattan AI is pioneering the development of autonomous and scalable defense systems, serving as a next-generation defense prime. With a recent $200M Series B funding round, valuing the company at $1.4 billion, we are on an exciting trajectory of expansion to enhance our capabilities in delivering mission-critical solutions for allied forces.Driven by our core values of creating technologies that have a tangible impact, striving for excellence, and tackling formidable technical challenges, we thrive in a rigorous environment where accountability and execution are paramount.About the RoleAs we scale, we are seeking a Senior System & Network Administrator to take complete technical ownership of our infrastructure, both on-premises and in the cloud. You will ensure high availability, resilience, and security across all infrastructure layers.Join our small yet skilled IT team where you will engage in a variety of stimulating projects, from enhancing security frameworks to optimizing tooling and collaborating on cross-functional IT initiatives. As the complexity of our infrastructure increases, so will your opportunities for career advancement into lead or architect roles. We are looking for a self-starter who confidently makes decisions and is enthusiastic about contributing beyond their primary responsibilities.This position involves shared on-call duties among the IT team to guarantee the continuity of critical services.Server & Systems AdministrationAdminister and maintain Linux and Windows servers across on-prem and Google Cloud Platform (GCP) environments.Establish and enforce update and patching policies across all systems.Monitor system health, performance, and uptime; proactively address incidents.Manage virtualization environments and storage infrastructure.Backup & Business ContinuityDesign, implement, and routinely test backup and disaster recovery strategies.Ensure data integrity and set recovery time and point objectives (RTO/RPO).Document and uphold business continuity protocols.Network AdministrationConfigure and maintain network equipment including switches, firewalls, and routers.

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.

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!

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 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.

Join Outsight, where our innovative software solutions harness the power of 3D LiDAR data to monitor the movement of individuals and vehicles. Our technology is utilized by transportation hubs, including airports, train stations, sports venues, road infrastructures, and industrial sites, enabling operators to access precise and anonymous Spatial Intelligence data that enhances operational efficiency and elevates user safety and satisfaction.Our dynamic international team, comprised of talented scientists and engineers, drives the advancement of our solutions from our offices in Paris, San Francisco, Sophia-Antipolis (Nice), and Hong Kong, with an additional commercial office in Spain. To learn more about our mission and offerings, visit Insights about Outsight.ContextBecome a key member of our Platform Engineering team, where you will ensure the reliability, scalability, and automated deployment of the Data Layer for our Shift Cloud Platform. This essential system processes 3D LiDAR object change events captured and analyzed by our perception engine. Your focus will be on achieving operational excellence to deliver spatial intelligence utilized by prominent global airport operators.ResponsibilitiesAutomate the deployment and testing of data pipelines using cutting-edge CI/CD methodologies.Implement and manage Infrastructure-as-Code (IaC) for our AWS cloud data platform, ensuring consistent environments.Design, implement, and maintain monitoring, alerting, and logging systems to oversee data quality, pipeline health, and system performance.Proactively optimize and tune the data platform for cost efficiency, performance, and reliability.

About H:At H, we are dedicated to redefining the landscape of superintelligence through cutting-edge agentic AI. Our mission is to automate intricate, multi-step processes traditionally executed by humans, empowering AI agents to fully unlock human potential.We are on the lookout for the brightest minds in AI, individuals committed to not only advancing groundbreaking agentic capabilities but also ensuring safety and responsibility in our innovations. Our culture fosters openness, ongoing learning, and collaboration, where every team member’s contribution is valued.About the Team: Our Infrastructure team plays a crucial role in providing seamless access to the necessary resources for our researchers and engineers. We ensure that the infrastructure supporting our public services is robust, reliable, and scalable, enabling impactful work across H, from foundational models to agent development and public service delivery.Key Responsibilities:Architecting and overseeing the infrastructure that supports:Research initiatives in Model and Agent development, including training infrastructure, data pipelines, and inference systems.Product Engineering efforts on H Company’s agent platform, which includes client-facing APIs and agent runtimes across various deployment environments (multi-tenant and on-premises).Establishing and maintaining observability and monitoring strategies to ensure system reliability.

Join Front, a pioneering AI-driven customer service platform, as we redefine collaboration in customer support. Our innovative workspace integrates essential support channels, empowers teams to streamline requests, automate tedious tasks, and enhance customer experiences throughout their journey. With our adaptable workflows and advanced AI capabilities, Front delivers invaluable insights and exceptional efficiency that keep organizations customer-focused daily.Trusted by over 9,000 forward-thinking companies globally, including CultureAmp, HootSuite, and Y Combinator, Front enables businesses to provide outstanding service at scale.Supported by industry leaders such as Sequoia Capital and Salesforce Ventures, Front has successfully raised $204 million from top-tier venture capital firms and prominent investors, including executives from Atlassian, Okta, Qualtrics, Zoom, and PagerDuty. Our accolades as a top workplace include recognition from Built In's 100 Best Midsize Places to Work in SF 2025, Top Places to Work by USA Today 2025, Y Combinator's Top Companies 2023, #4 on Fortune’s Best Workplaces in the Bay Area™, Inc. Magazine's 2022 Best Workplaces, and Forbes Best Startup Employers 2022.We are currently seeking an accomplished Engineering Manager to lead Front's core search team in Paris. In this pivotal role, you will oversee a talented group of senior engineers, driving the execution of an ambitious technical roadmap. Your leadership will focus on design and implementation, team scaling through recruitment of top talent, and mentoring future engineering leaders. Collaboration is key, as you will work closely with product managers, analysts, and designers to optimize team processes and enhance overall efficiency.

Join Our Team at MorphoMorpho is at the forefront of the Decentralized Finance (DeFi) revolution, having successfully raised $70 million from a diverse group of investors including Ribbit Capital, a16z crypto, and Coinbase Ventures. Our mission is to create an open lending network that provides equitable access to capital for everyone, everywhere. With over $10 billion in deposits, Morpho stands as a benchmark in DeFi lending and is poised for unprecedented growth.Our VisionAt Morpho, we believe that human ambition should not be limited by access to capital. Our goal is to eliminate the barriers of today's financial systems, making capital flow efficiently to those who need it most. We are committed to transforming the financial landscape into one that serves all individuals.Work EnvironmentWe thrive in a dynamic and fast-paced environment where innovative problem-solving is essential. Our team is encouraged to question norms and contribute to decision-making processes, fostering a culture of high expectations supported by collaborative teamwork. For more about our values, visit morpho.org/jobs.Role OverviewAs a Senior Infrastructure Engineer, you will take ownership of Morpho’s infrastructure platform. Your work will enable our engineering team to deploy rapidly, maintain institutional reliability, and scale efficiently across various chains and regions.Your ResponsibilitiesDesign and implement scalable production infrastructure to support over $10 billion in deposits, ensuring high availability and consistent performance.Create self-service infrastructure with developer tools to streamline deployment processes and enhance engineering productivity.Develop high-performance data and indexing systems capable of processing billions of on-chain events with minimal latency.Adopt GitOps deployment practices to facilitate progressive updates and rollback capabilities, improving operational reliability.

Join Mistral AI as a Software Engineer in our Deployment Infrastructure team, where you'll be at the forefront of deploying and integrating cutting-edge AI technology. In this role, you'll ensure the efficient launch of our innovative products, from AI models to APIs, across various infrastructure setups, including both leading cloud service providers and private environments. Collaborating with cross-functional teams, you will tackle unique challenges in AI safety and enhance our observability and monitoring systems to deliver exceptional solutions to our customers.

Join iliad-free as a Systems Administrator & DevOps specializing in Networks and Security (RSE) in the vibrant city of Paris. In this pivotal role, you will be at the forefront of managing and optimizing our IT infrastructure, ensuring seamless operations and robust security across our network systems.Your responsibilities will include configuring and maintaining servers, automating processes, and implementing security measures to protect our data. You will collaborate with cross-functional teams to enhance system performance and ensure the highest standards of security are upheld.

About VoodooEstablished in 2013, Voodoo is a leading technology company that specializes in developing captivating mobile games and applications aimed at entertaining audiences around the globe. With a dynamic team of 800 employees, Voodoo has achieved a staggering 7 billion downloads and boasts over 200 million active users, making it the third-largest mobile publisher worldwide, following Google and Meta. Our impressive portfolio features top-ranking games such as Mob Control and Block Jam, along with popular applications like BeReal and Wizz.TeamOur Engineering & Data team is dedicated to crafting innovative technological solutions and platforms that facilitate the remarkable growth of our gaming and consumer applications. This team is pivotal to Voodoo’s long-term vision, allowing us to enhance product diversification and develop a cutting-edge growth engine for scaling and distributing our games. We are committed to creating advanced solutions that drive growth through a practical approach, ranging from simple search functionalities to sophisticated machine learning systems.RoleWe are on the lookout for passionate individuals eager to create groundbreaking solutions! You will work on highly scalable systems that are utilized by millions, tackling complex challenges such as scalability, high availability, performance optimization, and automation. You will leverage state-of-the-art services and technologies while contributing to the enhancement of our technical stack.This position requires onsite presence 3 days a week in Paris.Design and implement strategies for service availability, scalability, and performance.Regularly evaluate existing infrastructure to ensure optimal performance, availability, and security.Develop security capabilities and promote the adoption of security best practices across the organization through education and advocacy.Take charge of automating infrastructure deployment and configuration, lead the establishment of CI/CD pipelines, and instill CI/CD best practices within the team.Execute development, automation, and deployment tasks independently.Provide leadership, guidance, and support in application development and cloud technologies to team members.Manage costs effectively while proposing and implementing innovative solutions in collaboration with development teams.

We are seeking a Senior Desktop Administrator to play a pivotal role in transforming our IT infrastructure. This position involves implementing innovative solutions that leverage the latest technologies, including Cloud and Application Virtualization.Main Responsibilities:Standardize the workstation experience for all users by creating a unified workstation environment.Maintain and upgrade workstations to ensure they are current and equipped with the latest tools.Determine appropriate technologies and architectures to align with our infrastructure and application strategies.Provide recommendations for innovative solutions that enhance efficiency.Support and evolve the workstation environment by ensuring a stable and secure master image that complies with security policies.Key Activities:Enhance the Workstation Master to improve performance and user experience.Create detailed procedures and technical documentation for the Helpdesk team.Manage incident escalations from various support teams effectively.Analyze and compare different workstation masters (Corporate & Business Unit) and provide recommendations for alignment and synergy.Collaborate with Helpdesk to build a comprehensive end-user service catalog.Advise on and validate technical solutions to facilitate seamless workstation evolution.

Quandela is at the forefront of quantum technology, spearheading the advancement and commercialization of photonic quantum computers. Our flagship product, MosaiQ, offers scalable and reliable quantum computing solutions tailored for high-performance computing (HPC) centers, cloud service providers, enterprises, and academic research institutions. As we broaden our presence in global markets, we are assembling a top-tier sales team to drive our expansion.With quantum computing transitioning from experimental phases to real-world infrastructure applications, Quandela is leading the charge in developing hybrid quantum-classical architectures within Europe’s supercomputing landscape.To fuel our rapid growth, we are seeking a Senior Sales Engineer with expertise in Quantum and HPC infrastructure. In this pivotal role, you will be instrumental in driving sales for Quandela’s offerings across HPC centers, cloud providers, enterprise clients, and research institutions. This position emphasizes a strategic, consultative sales approach to promote our next-generation quantum computing hardware and associated services.Your responsibilities will include identifying and closing sales opportunities, managing key accounts, and shaping the go-to-market strategy for our cutting-edge quantum solutions. As a proactive hunter, you will create strategic pipelines and close significant deals.

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.