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Data Selections Analyst

London
Posted about 16 hours ago
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Agency

Job Function

Data and Analytics

Job Subfunction

Data Science and Analytics

Job Description

Critical Mass is looking for a bright, curious and detail-focused Data Selections Analyst to join our growing team in London.

This is an exciting opportunity for someone with experience in data selection, processing or direct marketing who wants to develop their career within an agency environment. You’ll work as part of a specialist Data Selections team, sitting at the intersection of Marketing, Data Planning, Analytics and Operations and supporting campaigns for a large, high-profile client.

The role offers exposure to complex datasets, campaign targeting and selection, data quality and analysis, as well as opportunities to get involved in new tools, technologies and project work.

What you'll be doing

You’ll play an important role in the end-to-end delivery of campaign selections, ensuring data is accurate, compliant and delivered on time.

Your Responsibilities Will Include

  • Working with Client Leadership and delivery teams to understand project briefs and translate requirements into clear data specifications.
  • Creating data briefs and working with Data Planners to implement campaign targeting and test plans.
  • Selecting and processing data for multi-channel campaigns, including direct mail, email, SMS and other customer communications.
  • Working with large and complex datasets while maintaining a high level of data accuracy and integrity.
  • Carrying out data quality checks, campaign counts and queries throughout the production process.
  • Performing quality assurance checks on your own work and reviewing selections produced by colleagues.
  • Supporting campaign development through ad hoc analysis and data queries.
  • Producing regular reports and completing day-to-day data administration.
  • Using data and analytical tools to respond to customer queries and information requests.
  • Getting involved in project work, process improvements and opportunities to introduce new tools and technologies.

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

What we're looking for

We're looking for someone who is naturally curious about data, enjoys solving problems and takes pride in getting the detail right.

You'll Ideally Have

  • At least 2 years' experience in data selection, data processing or a similar data-focused role.
  • Experience working with large or complex datasets.
  • An understanding of direct marketing and campaign targeting.
  • Experience using a CRM, campaign management or similar data application. Experience with Siebel would be beneficial, but full training will be provided.
  • SQL experience would be useful, but isn't essential.
  • Strong attention to detail and a methodical approach to your work.
  • The ability to interpret data, identify issues and explain findings clearly to non-technical stakeholders.
  • Strong organisational and time-management skills, with the ability to manage deadlines in a busy environment.
  • A collaborative approach and the confidence to work with colleagues across different teams.
  • A willingness to learn new systems, tools and ways of working.

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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. Our objective is to increase this requirement over time, and many of our agencies as well as Omnicom’s corporate group already require five days of in-office attendance.

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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Location

London, England, United Kingdom

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