Security Systems and Networks Specialist

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 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.

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!

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 iliad-free as a Network Performance Engineer in Paris, where your expertise will drive the optimization of our network performance. In this dynamic role, you'll analyze network traffic, troubleshoot issues, and develop solutions to enhance overall performance. Collaborate with cross-functional teams to implement best practices and innovative technologies to ensure our network exceeds customer expectations.

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.

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.

Role overview The Security Systems and Network Specialist at OECD plays a key part in safeguarding the organization’s digital infrastructure in Paris. The position centers on maintaining secure networks and systems, with particular attention to data protection and the smooth functioning of operations. Main responsibilities Implement and manage security protocols for digital systems and networks Identify and analyze vulnerabilities within network environments Ensure that systems comply with international security standards Contribute to the protection of sensitive data and support the reliability of OECD operations Location This role is based in Paris.

Join our dynamic team at iliad-free as a Network Performance Engineer in Paris. In this pivotal role, you will be responsible for optimizing and enhancing the performance of our core network infrastructure. You will work closely with cross-functional teams to ensure the highest standards of network efficiency and reliability.

Join our innovative team at Scaleway as a Software Engineer focusing on Network Products Core. In this role, you will develop and enhance cutting-edge network solutions that empower our cloud infrastructure. You will collaborate with cross-functional teams to design, implement, and optimize network functionalities, ensuring high availability and performance.

About Mistral AIAt Mistral AI, we harness the transformative power of artificial intelligence to simplify processes, save time, and foster creativity and learning. Our innovative technology is crafted to seamlessly integrate into everyday workflows.We are committed to democratizing AI through our cutting-edge, optimized, and open-source models, products, and solutions. Our extensive AI platform is tailored to meet the needs of enterprises, whether on-premises or in cloud infrastructures. Our offerings include 'le Chat', the AI assistant designed for both personal and professional use.We are a vibrant, collaborative team driven by our passion for AI and its potential to revolutionize society. Our diverse workforce thrives in competitive settings and is dedicated to fostering innovation. Our teams are spread across France, the USA, the UK, Germany, and Singapore, and we pride ourselves on being creative, humble, and team-oriented.Join us to shape the future of AI and make a meaningful difference. Discover more about our culture at https://mistral.ai/careers.

Join us and thrive Network Security Engineer H/F CAPFI is a human-sized IT services company guided by genuine technological expertise and a strong culture of innovation. We offer a stimulating work environment, characterized by a variety of assignments and a human-centric approach. Trust, listening, and support are the core values of our Group, benefiting all employees. Our mission? To allow you to experience a collaborative journey that reflects your aspirations, enabling you to choose your professional trajectory, learning pace, and create the conditions necessary for your fulfillment. We believe that the diversity of profiles enriches our expertise; thus, we handle all applications equally, focusing solely on candidates' skills, irrespective of their origin, age, gender identity, disability, or religion. You are the right candidate if: You hold a Master’s degree and have at least 3 years of experience You specialize in IT Security technologies You recognize that IT Security is crucial today You are meticulous, passionate, curious, and persistent You possess a strong proficiency in English Your missions: As a Network Security Engineer, you will join a team of IT Security specialists at our clients' sites, working on topics such as: Internet access management Implementation of remote access solutions (VPN...) Securing perimeter access (Firewall, Proxy, Reverse Proxy, Load balancing, IDS/IPS, DLP, NAC, WAF...) Securing end-user devices (AV, EDR, HIDS, Micro-segmentation...) Mastery and understanding of cryptographic systems Technological watch Implementation of secure architectures Establishing security monitoring Patch management Validation of new solutions through POC Infrastructure migration

About Scaleway Scaleway builds secure, sustainable infrastructure for ambitious organizations across Europe. Since 1999, the company has grown from dedicated servers (Dedibox) to a broad cloud computing portfolio, always focused on simplicity, flexibility, and technical excellence. Today, Scaleway is a recognized name in the European cloud sector. With artificial intelligence gaining ground, Scaleway has doubled down on its mission, backed by a €3 billion investment from the Iliad Group to develop a sovereign AI alternative for Europe. The company’s expanding suite of cloud and AI products, bare metal, containers, serverless, and AI, serves thousands of clients, from major enterprises like France Télévisions and Hachette Livre, to startups such as Photoroom and Biolevate, and public institutions including the City of Copenhagen. Scaleway’s offices are located in Paris, Lille, Toulouse, Rennes, Rouen, Bordeaux, and Lyon. Role Overview: Software Engineer - Network Product Edge (Paris) Scaleway’s rapid growth calls for new talent to join the Network Product Edge team. This group is responsible for enhancing and scaling the technology behind Scaleway’s Load Balancer and Edge Services platforms. What You Will Do Develop, maintain, and improve software and infrastructure components for Load Balancer and Edge Services platforms Help deliver high-performance, secure, and scalable network solutions Support the fast adoption of Scaleway’s products by strengthening the underlying technology stack Location This position is based in Paris.

Role Overview Akuo Energy is hiring a Network & OT Security Engineer (H/F) in Paris. This position focuses on protecting and strengthening the security of our operational technology infrastructure and network systems. What You Will Do Design, implement, and maintain security measures for network and OT environments Safeguard the integrity, confidentiality, and availability of company data Help protect critical assets from potential threats About Akuo Energy Akuo Energy develops renewable energy projects and supports a sustainable future. The team values proactive security practices to keep systems and information safe.

Join Scaleway as a Site Reliability Engineer (SRE) and play a pivotal role in shaping the future of sovereign cloud technology. In this position, you will enhance the reliability, performance, and scalability of our innovative storage platforms. Your key responsibilities will include automating processes, monitoring infrastructure, and implementing improvements that ensure robust systems for our diverse range of products and services. Collaborate with an international team of experts dedicated to delivering excellence in cloud solutions.

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.

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.

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.