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Sparteo is an independent suite of AI-powered advertising technologies built on sustainable, sovereign infrastructure. Since 2018, we’ve been reshaping programmatic advertising to make it faster, more transparent, and more profitable by building the most direct path between publishers and advertisers. But we don’t stop here: wherever attention lives, on the web, in apps, on CTV, and beyond, our mission is to monetize audiences, across every device. Our data-driven tech delivers 30% higher revenues for our clients on average than traditional solutions. Our Solutions: → Actirise: the display tech designed for performance → FastCMP: the consent management platform specifically designed for business purposes → Meetscale: the most advanced SSP for Publishers and Ad Networks → Viously: the ultimate all-in-one video tech solution Behind Sparteo’s growth is a team of 100+ talents across 11 countries, united by a shared ambition to redefine the future of digital advertising. Our dedication has placed Sparteo among the most dynamic tech players in Europe: FT1000 ranking: Among the fastest-growing European companies in 2024 & 2025 The Europas: Featured in the list of 100 hottest startups Pixalate Ranking: #1 Web SSP in France with our Actirise solution, overtaking Google AdExchange These milestones are just the result. What truly sets us apart is how we work: at Sparteo, we don’t settle, we act. We are Drivers, not passengers: We take the wheel and own our results. We are data-obsessed: Facts guide us, not assumptions, not egos. We think as one: Collective goals come before personal wins. We trade off: We simplify, prioritize, and go for high-impact results. We solve problems: We own challenges and turn ideas into action. We say what we do: Radical transparency is how we grow, no fluff, no hiding Discover our journey, products, and culture on 👉 our website 👈 Your Job The Infrastructure & Cloud Services team runs the platform behind all Sparteo products: 100% bare metal in our own datacenters, Kubernetes at scale, and a self-managed network (BGP, our own AS, transit and peering). We don’t rent our infrastructure, we own it, and this sovereign, cost-efficient setup is a core part of what makes Sparteo fast and profitable. As our Senior Platform Engineer, your mission is to design, operate and scale the foundations every Sparteo product relies on. You will take ownership of critical parts of the stack, lead architecture decisions and help the team grow. Your Responsibilities & Key Deliverables Kubernetes Platform Platform Design: Design, implement and operate our Kubernetes platform: networking, ingress, GitOps and configuration management. Automation: Own CI/CD pipelines and packaging, with an automation-first approach from provisioning to deployment. Observability & Reliability Observability: Operate our observability stack, with large-scale metrics and log management. Operational Excellence: Own runbooks and the alerting catalog to keep our platform reliable and our on-call actionable. Data Infrastructure Data Platforms: Operate our data infrastructure: distributed storage, high-performance analytical and relational databases, and in-memory datastores. Physical Infrastructure & Growth Scaling: Scale our physical infrastructure: server procurement, rack upgrades and network capacity. Cost Efficiency: Contribute to cost optimization across the whole platform. International Expansion: Take part in the expansion of our infrastructure in the US. Technical Leadership Architecture: Lead architecture decisions on the platform. Mentorship: Mentor junior team members and share best practices across the team. Your profile for this job Experience: 5+ years in infrastructure / DevOps, with solid production Kubernetes experience, ideally on bare metal. Infrastructure as Code: An automation-first mindset: provisioning, configuration management, GitOps. Networking: Strong networking fundamentals: BGP, L2/L3, load balancing. Data Infrastructure (Nice to have): Experience with distributed storage or large-scale databases. Low-level Debugging (Nice to have): Instincts for troubleshooting at kernel, network and hardware level. Communication: Strong communication with product teams and stakeholders. Languages: Fluent in English (written and spoken); French is a plus. [Location: à confirmer avec Anthony. Par exemple « Based within reach of our datacenters, to handle on-site interventions when needed », ou ligne à supprimer si full remote] AI-native reflex: You are open to AI-assisted tooling in your daily workflows and use it to automate, document and move faster. Your mind set to share our adventure 🚀 You want to make an impact and move things forward collectively. Does hearing phrases like “Yes, but we’ve been doing it this way for years...” make your hair stand on end? We feel the same way: progress is made by questioning what already exists. 🧠 You solve problems pragmatically and analytically. 🏃‍♂️ You’re looking for a fast-moving environment where your agility will be an asset. The 80-20 (Pareto) principle holds no secrets for you. 🎧 Your ability to listen encourages you to challenge and improve yourself on an ongoing basis. Benefits & Work Environment 🌍 Dynamic Remote Culture: At Sparteo, we embrace a flexible work environment that adapts to your lifestyle, allowing you to contribute from wherever you feel most productive, be it from home or our urban offices in Paris, Lille, or London. 👥 Close-knit Team: Be part of our dynamic and united team, where collaboration, innovation, and mutual support drive our collective success and create a thriving work environment. 🎉 Vibrant Social Events: Engage in regular social gatherings and company events that foster community and celebrate our milestones. 🚀 Rapid Growth: Experience the excitement of working with a company in rapid expansion mode, impacting the advertising technology landscape across Europe and beyond. 📈 Tailored Support: We provide robust career development support, including training programs, career check-ins with HR, opportunities for internal mobility, and performance feedback sessions conducted quarterly or semi-annually, depending on your role. 🌴 RTT Days: We support work-life balance with additional rest days (RTT), provided based on position and tenure, empowering you to recharge and enjoy life outside of work. 🩺 Comprehensive Health and pension plans: We provide a robust health benefits plan, ensuring you and your family are covered and cared for. At Sparteo, we believe diversity is a strength. We are committed to providing equal opportunities and fostering an inclusive work environment. We encourage applications from all backgrounds, identities, and experiences. Ready to join Team Sparteo? Send us your CV and continue the recruitment process! Here are the stages in our recruitment process Discussions about your driving forces, your ambitions and our Sparteo mindset will be held with a member of our Talent Acquisition team. Technical assessment Discussions with one or more members of the Sparteo team, including your future manager Taking up references Our recruitment process is mainly conducted by videoconference; however, certain stages may require a face-to-face meeting. Originally posted on Himalayas