System and network administrator junior

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
→ Voxeus: the audio distribution and monetization technology

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

Support Sparteo's growing international infrastructure by executing system and network administration tasks, ensuring uptime, security, and reliability across our environments. As an Impact A contributor, you will learn from the team, follow established procedures, and progressively build your technical autonomy within a fast-scaling AdTech group.

To specify

• System Administration:

  • Monitor and maintain servers, ensuring their optimal performance.

  • Implement security measures and perform regular system updates and backups.

• Network Administration:

  • Manage the network infrastructure, including routers, switches, firewalls, and VPNs.e

  • Monitor network performance, identify issues, and implement necessary fixes.

  • Support connectivity across various locations and ensure high uptime.

• Technical Support:

  • Provide technical support to internal teams, troubleshoot system and network-related issues.

  • Collaborate with other departments to ensure IT resources align with business needs.

• Documentation & Improvement:

  • Document IT processes, configurations, and incidents.

  • Suggest and implement improvements to increase efficiency and security in system and network operations.
    

Your profile for this job

• Technical Knowledge: Basic understanding of network management (TCP/IP, DNS, DHCP) and system administration on Linux servers.

• Problem-Solving Skills: Ability to troubleshoot technical issues quickly and effectively.

• Attention to Detail: Ensuring the reliability and security of systems and networks requires meticulous attention.

• Team Player: Collaboration across departments, especially in assisting non-technical users.

• Curiosity and Initiative: A willingness to learn and grow in a dynamic and rapidly evolving IT environment.

• Fluent in both French and English (written and spoken) — essential for collaborating across our French headquarters and international teams.

• Based in the Nord department (59) — required to ensure fast on-site response for infrastructure incidents at our facilities.

• A strategic thinker with an 'AI-native' reflex, you excel at deconstructing business complexity into flawless operational blueprints. You don't just use AI; you design the structured documentation and logic flows that allow intelligent systems to execute our vision with precision
  

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.

• 🩺 Comprehensive Health and pension plans: We provide a robust health benefits plan, ensuring you and your family are covered and cared for.

• 💼 Additional Perks:

  • 🍽️ Benefit from the Swile card for meals.

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.

• Analytical and business logic tests

• 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.