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
As the Product Manager Engagement, you will be responsible for defining and implementing the optimization strategy for our four core solutions: Actirize, Meetscale, Viewsly, and FastCMP. You will work at the intersection of Product, Design, and Data to maximize performance while preserving user experience.
To specify
Strategy & Optimization: Define the roadmap for ad format optimization. Analyze the performance of existing formats to identify areas for improvement and design/prototype innovative new formats.
A/B Testing & Analysis: Lead rigorous A/B testing campaigns to validate hypotheses. Your focus will be on optimizing CTR, User Engagement, and Bounce Rate, ensuring a positive global impact on the domain.
Native Advertising: Manage native advertising strategies by transforming XML feeds into high-performing, visually appealing display creatives.
Visual & UX Enhancement: Optimize the visual rendering of our Viewsly video player and the in-player ad experience.
Compliance & UX: collaborate with Product Owners and the Legal department to optimize FastCMP (Consent Management Platform), balancing compliance with user acceptance.
Cross-Functional Collaboration: Work closely with Technical teams for implementation and Sales teams to align product capabilities with market needs.
Market Watch: Stay ahead of the curve by monitoring the latest trends and technologies in online advertising and AdTech.
Your profile for this job
We are looking for a data-driven and creative problem solver who understands that a pixel-perfect ad can make the difference between a bounce and a conversion.
Experience: Proven experience in ad format optimization, UX optimization, or a similar Product Management role with a strong focus on A/B testing.
Analytical Skills: You have a mastery of key AdTech KPIs (CTR, Engagement, Bounce Rate, VTR) and can turn data into actionable product insights.
Creative Mindset: You are capable of thinking outside the box to explore alternative solutions. You have a strong sensitivity to design and visual aesthetics.
Problem Solver: You have a strong ability to analyze complex problems and propose efficient solutions.
Communication: Excellent communication skills and a team-player attitude are essential to align technical and business stakeholders.
Tech Savvy: Familiarity with XML, Display technologies, or Video player environments is a strong plus.
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.
Additional Perks:
️ Benefit from the Swile card for meals.
Partial reimbursement of public transit passes.
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.