About One Day Agency
One Day Agency is an integrated advertising and marketing agency with offices in Manchester, London, and Warsaw. In just five years, we've built a team of 14 dynamic professionals working with brands of all sizes across the Globe, from small e-commerce businesses to F1 teams.
We specialise in delivering high-impact advertising campaigns across OOH, TV, Radio, and digital channels, helping brands grow through strategic media planning and buying.
The Role
We're looking for a Junior Account Manager with at least 1 year of advertising/marketing equivalent role, ideally from an agency, specialist or media owner, to join our fast-paced Growth Team. You'll take full ownership of inbound client inquiries-converting leads, pitching media plans, and delivering advertising campaigns across multiple channels.
This role is perfect for someone who thrives in a collaborative, high-energy environment, is eager to learn about all forms of media, and can independently manage campaigns from start to finish.
Key Responsibilities
- Manage and convert inbound sales opportunities.
- Plan and buy media across OOH, TV, Radio, and other channels. UK and Worldwide.
- Develop and maintain strong client relationships.
- Oversee campaign execution and ensure seamless project management.
- Collaborate with internal teams to deliver high-quality results.
What We're Looking For
- Bilingual: French and German speaker.
- Proven experience in account management or media sales (specialist, agency or media owner).
- Excellent organisation and multitasking skills with attention to detail.
- Strong computer skills-you'll need to navigate multiple platforms with ease.
- Exceptional communication and interpersonal skills.
- Ability to work independently, manage priorities, and meet deadlines.
- Familiarity with project management tools is desirable.
- Proactive, solution-oriented mindset.
Salary & Benefits
- Salary: £35,000 to £45,000 base + uncapped commissions (+£50,000 potential, avg. £15,000 first year)
- Flexible Work: WFH every Friday + 20 additional WFH days per year
- Annual Leave: Up to 30 days
- Professional Growth: Unlimited training and development budget
- Top-tier office setup with high-end equipment
- Additional perks listed on our Careers Page
