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 Senior Sales Manager UK, your mission is to accelerate Sparteo’s international expansion by driving agency-led revenue growth. You are a strategic architect: you don't just sell products; you shape and optimize our advertising offerings to align with the UK market’s sophisticated needs. Your role is pivotal in bridging the gap between agency expectations and Sparteo’s technological innovation.

Responsibilities & Key Missions

Revenue Development & Strategic Partnerships

• Direct Agency Growth: Lead and expand revenue from agency partners, securing long-term, high-value contracts.

• Performance Monitoring: Track KPIs rigorously, identifying optimization levers to consistently exceed revenue targets.

• Sales Effectiveness: Provide strategic insights to refine our UK sales methodology and boost agency engagement.

Offer Development & Product Influence

• Solution Improvement: Collaborate with R&D and Product teams to iterate on our Adtech stack based on real-time UK market trends.

• Insight Integration: Act as a feedback loop, incorporating client needs into the product roadmap to enhance the relevance of our marketing offerings.

Custom Solution Creation & Scalability

• Bespoke Design: Develop tailored advertising solutions that align client objectives with Sparteo’s unique technical capabilities.

• Cross-functional Leadership: Work hand-in-hand with Marketing, Ops, and Product to ensure every custom solution is feasible, scalable, and delivered flawlessly.

Market Strategy & Intelligence

• Opportunity Scouting: Proactively identify new business blue oceans and anticipate shifts in agency needs (e.g., cookieless, privacy-first).

• Commercial Roadmap: Help define and execute the UK demand-side strategy in alignment with Sparteo’s global growth objectives.

Your profile for this job

• Experience: Solid track record in agency-side or demand-side sales within the Adtech/Digital Advertising sector (London market experience is vital).

• Strategic Mindset: Proven ability to design custom solutions and influence product strategy based on market feedback.

• Analytical Rigor: Comfortable using data insights and market research to refine value propositions.

• Collaboration: A true team player who thrives in cross-functional environments and values collective success.

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.

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.