Senior Account Manager

Want to work for a disruptive digital marketing agency in the heart of London? re:act was founded by two global FMCG marketers with experience in Health & Beauty, Gaming, Food & Drink and Technology and since 2019 re:act marketing has grown from a team of 2 to over 40 employees. Working with blue-chip clients across multiple sectors, we are a creative content agency that truly believes in developing content that means something to consumers. Brands are no longer defined by what they say about themselves, but by what real people say about them.  

Our agency creates unique moments that matter to the consumer, which allows brands to own conversations in a creative and engaging manner. Our experienced team creates content that travels with feeling and puts conversations at the heart of everything.  

We’re looking for a sharp, confident and delivery-led Senior Account Manager to join our team and lead one of our most fast-paced and high-profile accounts operating at serious scale across organic, paid and influencer social. 

This is a role for someone who’s been in the thick of it - running multiple social workstreams at once, partnering closely with creative and strategy teams, and navigating the pressures of short deadlines, complex approvals and high expectations. You’ll need to bring strong digital and content fluency, an eye for detail, and the calm, client-facing presence that earns trust at every stage. 

This is not a step-up role - we’re looking for someone who’s already operating at SAM level in a social-first agency environment and ready to hit the ground running on a fast-moving FMCG brand.  

Client Leadership & Social Strategy Execution 

• Act as the day-to-day client lead, managing relationships across brand, social, and community teams. 

• Translate client briefs and business needs into clear, actionable workstreams across paid, organic and influencer social. 

• Collaborate closely with strategy, creative and influencer teams to ensure social-first ideas are both impactful and executable. 

• Present work, performance and insights with confidence, clarity and polish - whether in a sprint meeting or on a formal call. 

• Spot potential roadblocks, bottlenecks or issues early, and proactively solve them before they escalate. 

• Keep a close eye on trends, competitor activity and platform updates to keep the brand ahead of the curve. 

 

Project & Content Delivery 

• Oversee day-to-day delivery of always-on content calendars, paid social activations, community-led campaigns and influencer partnerships. 

• Lead content planning, timeline management, stakeholder reviews and approval workflows with precision. 

• Ensure content is delivered accurately, on time and to spec - across formats, platforms and markets. 

• Manage client feedback and amends with care and clarity, ensuring nothing gets lost in translation. 

• Work closely with producers and creatives to align on deliverables, usage rights, and deadlines. 

• Support the creation of performance reports and insights in collaboration with the analytics team. 

 

Team Collaboration & Leadership 

• Mentor junior team members (Account Executives / Account Managers), helping them grow in confidence and quality. 

• Set the tone for fast, focused, high-quality account delivery - without compromising on relationships or morale. 

• Act as the connective tissue between departments - ensuring social workstreams run smoothly across creative, influencer, paid media and strategy. 

• Champion a positive, proactive, problem-solving culture within your account team. 

 

Commercial & Operational Management 

• Manage scopes of work, timelines and budget trackers across all social deliverables. 

• Ensure all projects are delivered within scope and timelines, flagging scope creep or resourcing challenges early. 

• Track time, reconcile budgets, and ensure accurate forecasting. 

• Manage third-party partners or talent (influencers, creators, platform reps) with commercial rigour. 

The list below sets out what matters most for this role. Where we’ve flagged something as (Desirable), it’s a bonus rather than a requirement — if you meet most of the essential points, we’d still love to hear from you. 

• Significant experience in a social-first agency environment and already operating at SAM level. 

• (Desirable) Direct experience leading always-on social delivery across FMCG or lifestyle brands, ideally within the drinks/ sports/healthcare/beauty sectors. 

• Strong understanding of social content planning, production workflows, usage rights, and channel nuances (Meta, TikTok, YouTube, etc). 

• Highly organised and detail-oriented, with a reputation for never missing a deadline or deliverable. 

• Calm and confident under pressure - with strong instincts, great judgement and a clear point of view. 

• Outstanding client communication and relationship-building skills - someone who earns trust fast. 

• Confident managing scopes, timelines, approvals and budgets without constant oversight. 

• A real pride in doing things well. 

Please note: this is a senior-level delivery role within a fast-paced, social-first agency environment, so you’ll typically have built the bulk of your experience agency-side, across multiple clients or brands. 

This is a high-impact role on a flagship FMCG brand, working with a smart, supportive team in a genuinely fast-paced environment. You’ll be trusted, stretched and supported - with the freedom to do great work and the structure to grow. 

What you’ll get:  

• Annual & New Business Bonus Schemes 

• Up to 29 days leave + bank holidays 

• Summer hours 

• Free breakfast & refreshments 

• Dog friendly office 

• Hybrid working arrangements 

Inclusive Hiring 

We’re committed to building a diverse and inclusive workplace. Applications are welcomed from people of all backgrounds, experiences and perspectives. 

If you’re excited about this role but don’t meet every requirement, we still encourage you to apply 

Equal Opportunities 

React Marketing is committed to being an inclusive employer. We welcome applications from all qualified candidates and will not discriminate on the basis of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation, in line with the Equality Act 2010. If you need any reasonable adjustments at any stage of the recruitment process, please let us know.