Sr Manager, Strategy in London

Crossmedia is the global media independent, committed to doing media and business the right way, guided by the principles of TRUST, REASON and the Pursuit of HAPPINESS. Founded in NY in 2000, Crossmedia US is one of the largest minority-owned full-service media planning and buying agencies in the nation. We focus on creating innovative connections between brands and people regardless of channel or budget, maintaining a values-based organization that earns clients' TRUST through media transparency and objectivity in decision-making.

As a Senior Strategy Manager, you will lead the development of integrated communications strategies within a media agency, turning complex business challenges into clear, actionable plans. This role requires balancing cultural relevance with commercial impact, shaping strategies that drive both brand and business growth. You will partner closely with planning, investment, analytics, activation, and creative teams to develop audience-first communications strategies that connect insight, media, and data to deliver measurable business outcomes.

Key Responsibilities

• Lead end-to-end strategy development, from insight to activation.
• Translate business challenges into clear communications tasks and channel roles.
• Craft compelling narratives that align creative, media, and data.
• Present confidently to clients and internal stakeholders.
• Build simple, scalable frameworks that elevate strategic output on both a local and global level.
• Act as day-to-day strategic lead for key client workstreams.
• Build trusted relationships with mid-to-senior client stakeholders.
• Lead integrated discussions across creative, media, and activation teams.
• Run workshops, planning sessions, and project meetings independently.
• Identify and apply shifts across culture, consumer behaviour, category, and brand.
• Shape full-funnel, connected ecosystem plans with defined roles for each channel.
• Define clear measurement frameworks, learning agendas and effectiveness principles.
• Play a key role in new business pitches and strategic responses.
• Mentor junior team members and elevate team output.
• Contribute to thought leadership and case studies.
• Identify emerging media, technology and cultural opportunities.

Requirements

• 4–7 years’ experience in media, communications, or advertising strategy.
• Strong strategic thinking and commercial understanding.
• Excellent storytelling and presentation skills.
• Confidence leading projects and client conversations independently.
• Collaborative mindset with the ability to inspire cross-functional teams.
• Curiosity, resilience, and a drive to continuously improve.

Location: London, UK (Hybrid/Flexible – 3 days onsite, 2 days remote). Employment Type: Full-time, Permanent. Right to Work: Applicants must have the legal right to work in the UK at the time of application. Crossmedia is unable to provide visa sponsorship for this role.

Crossmedia Benefits

• Flexibility to work in a hybrid manner with in-office and work from home options.
• Open/Flexible PTO/Annual leave with US & UK specific policies.
• Sponsored healthcare options and agency-wide physical & mental health support.
• 401k with company match (USA), and generous Pension (UK).
• Paid sabbatical at significant milestone anniversaries.
• Generous paid parental leave policy.
• The Pursuit of Happiness Fund devoted to helping Crossmedians find their happy.
• Cell phone/tech reimbursement.
• Tuition reimbursement and learning & development programs.

Commitment to Diversity and Inclusion

Diversity is in our DNA. As a minority-owned company, our commitment to an inclusive environment has long been embedded into agency practices. Crossmedia is committed to providing equal employment opportunities and creating a diverse and inclusive company culture.