Senior Marketing Executive (FTC - 6 months) in London

The Marketing Executive – Merkle ARC (EMEA) plays a critical role in supporting ARC’s growth across the region, translating marketing strategy into high-impact campaigns, content and activations. This role is focused on driving execution excellence across campaigns, events, digital channels and content, ensuring consistent brand presence and measurable contribution to pipeline and growth.

Working closely with ARC leadership, sales and partner teams, the Marketing Executive will help bring ARC propositions to market, amplify thought leadership, and support go-to-market initiatives across priority industries and regions.

• Campaign Planning & Coordination
  • Support the development and execution of ARC marketing campaigns aligned to growth priorities.
  • Coordinate closely with sales, partnerships and GTM teams to align marketing activity to commercial objectives.
  • Manage timelines, deliverables and cross-functional collaboration to ensure campaigns are delivered efficiently.
  • Act as a central coordination point for ARC marketing activity across EMEA.
• Campaign Execution & Delivery
  • Execute integrated marketing campaigns across digital, content, CRM, events and social channels.
  • Support the creation of thought leadership, case studies and client-led content to showcase ARC capabilities.
  • Deliver webinars, roundtables and events to engage target clients and partners.
  • Coordinate paid and organic campaign activity to drive awareness, engagement and demand.
  • Support CRM-driven campaigns and nurture activity to generate pipeline.
• Content & Brand Amplification
  • Manage ARC social presence, ensuring consistent and engaging content across channels.
  • Support creation of campaign assets, toolkits and messaging that can scale across markets.
  • Maintain consistency in ARC brand and positioning across all marketing outputs.
  • Work with internal teams to identify success stories and translate into market-facing content.
• Market Enablement & Growth Support
  • Enable sales and partner teams with marketing assets, campaign support and messaging.
  • Share best practice and campaign learnings across regions and teams.
  • Support key industry initiatives, launches and priority GTM programmes alongside the markets.
  • Ensure strong alignment between ARC marketing activity and strategic growth initiatives.

• Experience in B2B marketing, ideally within professional services, platforms or partnerships.
• Strong capability in campaign execution across multiple channels (digital, content, CRM, events).
• Proven ability to manage multiple workstreams and deliver against deadlines.
• Comfortable working in a fast-paced, matrixed environment with multiple stakeholders.
• Strong communication, organisation, collaboration skills and a self-starter.
• Proactive, detail-oriented and solutions-focused mindset.

• High-quality, on-time delivery of ARC marketing campaigns.
• Strong engagement across campaigns, events and content.
• Clear contribution to pipeline generation and growth initiatives.
• Consistent ARC brand presence across EMEA markets.
• Positive feedback from sales, partners and stakeholders.

At Dentsu, we embrace diversity and inclusion, valuing the unique perspectives and contributions of every individual. We believe that diversity fuels creativity and innovation, benefiting our employees, partners, and communities. We welcome applications from all individuals, regardless of race, ethnicity, nationality, religion, gender, gender identity, sexual orientation, age, disability, marital status, or any other protected characteristic.

Beyond recruitment, we strive to create an environment where everyone feels respected, supported, and empowered to bring their authentic selves to work. We recognize the importance of work-life balance and are open to discussing flexible working arrangements for all roles.

If you need reasonable adjustments due to a disability or medical condition during our recruitment process, please contact us at accommodations@dentsu.com, quoting the reference number of the role that you are applying for. Your needs will be handled with respect and confidentiality to ensure an inclusive and accessible experience.

Dentsu is an integrated growth and transformation partner to the world’s leading organizations. Founded in 1901 in Tokyo, Japan, and now present in over 145 countries and regions, it has a proven track record of nurturing and developing innovations, combining the talents of its global network of leadership brands to develop impactful and integrated growth solutions for clients.

Dentsu delivers end-to-end experience transformation (EX) by integrating its services across Media, CXM and Creative, while its business transformation (BX) mindset pushes the boundaries of transformation and sustainable growth for brands, people and society.