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Salary
≈ $40k – $92k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Visa
Licensed UK visa sponsor
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Oct 30, 2026. Omnicom scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Omnicom is a global marketing and communications holding company headquartered in New York that owns advertising, media, precision marketing, public relations, healthcare and commerce agencies. Formed in 1986 and listed on the New York Stock Exchange, it runs networks such as BBDO, TBWA, Omnicom Media and Omnicom Health, and in 2025 it completed the acquisition of Interpublic Group, which added McCann and IPG Mediabrands. Its openings cover paid social and search, strategy, account and client finance, project management and human resources roles, concentrated in New York, Chicago, Los Angeles, London and Toronto.

Agency:

MediaHub WW

Job Function:

Media

Job Subfunction:

Media Planning and Buying

Job Description:

WHO ARE WE:

Hearts United (formerly Mediahub) is a full-service media agency with a unique structure and client offer. We grew out of creative agency MullenLowe in the hot crucible of the digital and data revolution that has transformed media over the last ten years.

We believe media’s strongest growth lever is innovation. AI and algorithms are useful for efficiency but lead brands to say similar things in similar places to similar audiences. Effectiveness comes from innovation, and innovation comes from creativity.

We offer the best of both worlds: an entrepreneurial culture backed by the global scale of Omnicom Media. You’ll join an agency that’s full of energy, experimentation and ambition. We’re a home for pilots, not passengers.

We live by our values

  • Anticipate tomorrow - We are challengers. We are proactive in thinking about what needs to happen today in order to make tomorrow better
  • Perform with pride - We take pride and care in what we do, and together we strive for excellence
  • Turn no into next - Obstacles and restraints inspire us
  • Question what others won’t - Powerful ideas start by questioning what’s perceived as established truth
  • Fight inertia - We relentlessly push for better, never settling for complacency
  • Be brave - Safe is risky. Bravery gets us to unprecedented places

Job title: Account Manager

Reporting line: Group Account Director

Account: Gates Foundation (NGO) + Legal & General (Financial Services)

This role will support the work of the Gates Foundation and Legal & General, helping deliver clear, thoughtful and effective communications for their audiences. The Gates Foundation is a global philanthropic organisation focused on improving health, reducing poverty and expanding opportunity. Legal & General is a UK-based financial services group working across areas including insurance and pensions. This role will support communications for both clients, tailoring messaging to their distinct missions, audiences and sectors.

Position overview:

As an Account Manager, you will work across the 2 different accounts, at the forefront of client interaction. You will be responsible for understanding their needs, supporting the Account Director to develop tailored media strategies, using the relevant agency tools and planning process, whilst ensuring flawless campaign execution. You'll collaborate with cross-functional teams to achieve client objectives, manage budgets effectively, and maintain a high level of client satisfaction while delivering impactful media solutions.

Your roles and responsibilities will be centred around the below core competencies. These include but are not limited to:

Client Service

  • Is the lead contact in day-to-day communication with your direct client and nurturing the relationship by delivering high standards of client satisfaction.
  • Leads on all regular status calls with clients and ensures all actions are documented by the team and followed up in a timely manner
  • Develops and maintains strong relationships with media partners.

Commercial

  • Has a full understanding of the commercial agreement between agency and client and ensures that all plans have the right charges on them before sign off
  • Has a good understanding of our agency products, and identifies and alerts senior client team members when there is an opportunity to sell something new to increase revenue
  • Supports the Business Director where relevant in reviewing commercial arrangements for your clients. Has a thorough understanding of the detail as well as the impact it can have on the delivery of their work.

Career Development & Team Management

  • Contributes to agency culture and represents your client team by being a voice to the rest of the agency about good work occurring or celebrating successes on your team
  • Support the team in setting the tone, by living out Hearts United's values on a daily basis and instilling that in how your team works together.

Desired Skills and Experience:

We’re looking for someone who ticks most or all of these boxes:

  • Prior planning experience across all channels, including TV, Digital, Social, PPC & OOH
  • Experience in planning across the UK or Globally
  • Embraces a ‘Challenger mindset’ in the delivery of all work and in managing their direct reports.
  • Excellent client servicing skills.
  • Is Agile in their approach and able to run fast at new opportunities when presented.

The Perks

We aim to provide all our people with a supportive and fun work environment where you can develop your fill potential and benefit from the broad range of opportunities within the agency. We you join us, we want to make sure you feel valued - and that you are rewarded for your work. We offer a range of benefits:

  • 25 days annual leave + bank holidays
  • Core hours
  • Generous Parental Leave & Pay
  • Interest free season ticket loan
  • Paid time off for Volunteering
  • Employee Assistance Program
  • Financial Education
  • Free eye tests and flu shots

To the extent permissible by local law, Omnicom’s policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager.

Omnicom is committed to hiring and developing exceptional talent. We agree that talent is uniquely distributed, and we’re focused on developing inclusive teams that can bring the best solutions to everything we do. We strongly believe that celebrating what makes us different makes us better together. Join us-we look forward to getting to know you. We will process your personal data in accordance with our Recruitment Privacy Notice.

Link to Recruitment Privacy Notice: https://www.omc.com/privacy-notice/

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