Social Media and Marketing Assistant

Ernst & Young; City of Westminster; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading global communications agency in the City of Westminster seeks an experienced Account Manager to oversee paid social strategies. In this role, you'll lead a dedicated team, ensuring successful campaign delivery across platforms while maintaining strong client relations. Ideal candidates will have experience in paid social strategy and team management. The position offers autonomy and a positive company culture, with a focus on data-driven approaches to media planning.

Benefits

Pension

Private Medical Insurance

Flexible working options

Income Protection Plans

Qualifications

• Experience in leading paid social campaigns and managing teams.
• Ability to present insights and influence client media strategies.
• Highly organized with strong detail orientation.

Responsibilities

• Lead media planning and strategic direction for accounts.
• Deliver actionable insights from performance data.
• Oversee campaign delivery and optimizations with the team.

Skills

Experience in paid social strategy

Client presentation skills

Attention to detail

Financial acumen

Collaboration skills

Job description

Overview

We partner with Meta to manage their extensive portfolio of global social campaigns across the industry's most dynamic platforms, including TikTok, Reddit, Snapchat, LinkedIn, and Pinterest. Our focus covers both B2C and B2B initiatives, primarily targeting awareness and consideration phases.

This Account Manager role involves leading a dedicated Business Unit, offering a high degree of autonomy. While you will support executive-level activations, your primary remit will be the deep‑dive media planning and strategic direction for your accounts. Success requires expert collaboration with both local UK and international planning teams to deliver integrated global strategies.

Data & Insight

• Select and track the right KPIs aligned to broader business and marketing objectives.
• Challenge briefs to ensure measurement frameworks are meaningful and client‑centric.
• Deliver actionable insights from performance data, not just reporting numbers.
• Spot data limitations and propose smart, creative solutions to bridge gaps.

Technology & Tools

• Use Publicis tools and third‑party platforms to solve challenges and enhance performance.
• Champion automation and tech to streamline manual tasks and improve team efficiency.
• Experiment with new platform features, tools, and tech to test impact and drive innovation.
• Encourage the adoption of new tools to future‑prove our approach to paid social.

Media Strategy & Execution

• Own paid social strategy from audiences to creative best practice to bid strategies.
• Keep the team aligned to key processes, platform updates, and quality assurance standards.
• Lead testing roadmaps, platform innovation plans, and channel growth strategies.

Operations & Delivery

• Oversee smooth day‑to‑day campaign delivery and optimisations with the team.
• Ensure accuracy and quality across briefs, budgets, performance tracking, and reconciliation.
• Lead financial QA for your accounts and support junior team members.
• Effectively manage up, across, and down, flagging risks early.

People & Culture

• Lead by example, create a positive and inclusive environment where people are supported.
• Delegate effectively to empower junior team members and maintain high delivery standards.
• Support growth by giving feedback, recommending training, and sharing best‑in‑class work.
• Embrace change and encourage others to see the opportunity in new ways of working.

Qualifications

• Experience in paid social strategy, activation, and team management.
• Confident working directly with clients, presenting insights, and influencing media decisions.
• Highly organised with excellent attention to detail and financial acumen.
• Growth mindset – curious, proactive, and not afraid to challenge the status quo.
• Collaborative and empathetic – able to support others while still pushing for excellence.

Additional Information

• Spark Foundry is committed to equal access to opportunity for people without regard to race, age, sex, disability, neurodiversity, sexual orientation, gender identity or religion.
• Benefits include Pension, Life Assurance, Private Medical and Income Protection Plans; flexible working; and a range of wellbeing and family‑friendly policies.
• Members also enjoy WORK‑YOUR‑WORLD opportunities, reflection days, and other global benefits when you join.

Company Description

Spark Foundry is part of the Publicis Groupe, a leading global communications network. With over 8,000 employees in 110 offices across 70+ countries, we accelerate brands through data, intelligence, and media innovation.