Senior Performance Marketing & Growth Consultant- 6 month contract

OnBuy Limited; Manchester; On-site; GBP 100,000 - 134,000; Full time

Job summary

OnCommerce is seeking a senior performance marketing specialist to drive a six-month transformation across Meta, Google Shopping and affiliates. You will analyze campaigns, identify profitable cohorts and optimize spend for profitable growth across UK markets.

The role demands hands-on analytics, segmentation, testing and continuous campaign improvement in a fast-paced scaling business.

Qualifications

• Senior, highly analytical marketing professional with hands-on experience in performance marketing.
• Experience optimizing multi-channel campaigns across Meta, Google Shopping, and affiliates.
• Ability to segment audiences, measure ROI and drive profitable growth.

Responsibilities

• Identify opportunities across existing and new channels to improve efficiency.
• Lead analytics, segmentation, testing and measurement initiatives.
• Allocate spend toward activities with proven incremental value and profitability.
• Collaborate with Data Science on propensity models and pricing data.

Skills

Analytics

Paid media

Strategic thinking

Tools

Meta Ads Manager

Google Ads

Affiliates networks

Job description

Who are OnCommerce?

• OnBuy - The only marketplace in the world to give customers instant Cashback on everything
• easyShop - An all-new marketplace created in collaboration with the easy family of brands
• Comet - The iconic UK tech brand making its return later this year

OnCommerce is a global selling platform that powers a growing network of retail channels, including:

OnCommerce is growing fast, launching new brands and scaling to power the future of ecommerce.

Be Part of the Story

OnCommerce is constantly evolving. Everyone here plays a hands-on role in shaping what comes next, building brands that make an impact across global markets. There's no red tape or rigid corporate structure; just smart people taking ownership and figuring things out as we build something big together. The pace is fast, priorities shift, things aren't always perfectly set up, and you'll often need to get stuck in and solve problems. But if you thrive in that kind of environment, you'll have real influence, real ownership, and the chance to grow with a rapidly scaling business.

What We're Looking For

We're looking for a senior, highly analytical and genuinely hands-on performance marketing specialist to come into the business and drive a six-month marketing transformation.

The core problem to solve

There are significant opportunities across both existing and new acquisition channels, but we need much deeper analysis and optimisation.

The Contractor Will Systematically Identify

• Where marketing spend is being wasted.
• Where profitable growth is being missed.
• Which products, audiences, segments and cohorts perform.
• Which channels should be scaled, reduced or changed.
• How acquisition translates into contribution and profitability, not just traffic or GMV.

Ultimately How do we pull traffic from every commercially viable source at an affordable cost and continually move investment towards the activity generating profitable growth?

Immediate areas of focus

• Meta: Facebook & Instagram

Meta represents a significant opportunity.

We need someone to take ownership of the analytical and optimisation side, including:

• Product and audience segmentation.
• CPCs and conversion.
• Cohort performance.
• Measurement.
• Testing.
• Identifying winning and losing segments.
• Continually reallocating spend towards what works.

With such a large catalogue, selecting which products should actually go into Meta and how those decisions are tested will be a key challenge.

Google Shopping

• Product-level profitability.
• Sources of wasted spend.
• Audience/customer segmentation.
• Cohort analysis.
• CPC efficiency.
• Merchant Centre and feed issues.
• Missing/suppressed products.
• Conversion.
• Contribution and margin.

A major objective is identifying product cohorts where spend is inefficient and stopping or restructuring that activity.

Affiliates

Analyse Existing Performance And Identify New Affiliate Opportunities Across

• CJ.
• impact.com.
• Rakuten.
• Feed quality and frequency.
• Conversion.
• Contribution/profitability.
• New partners.
• UK and European expansion.

Europe is considered particularly under-optimised and should form part of the opportunity assessment.

• Segmentation, cohorts & propensity

This sits at the heart of the role.

We need someone capable of analysing very large product sets and customer data to establish what should be marketed, to whom, through which channel and at what cost.

They may also work with the Data Science team around propensity solutions and additional pricing data, helping determine whether products are commercially viable to promote based on their position versus the market.

Reporting, monitoring & alerting

Build better visibility around marketing performance so that problems are identified quickly.

For Example

• Unexpected traffic/channel changes.
• Rapidly increasing costs.
• Poor-performing activity.
• Issues affecting channel performance.
• New marketing activity that isn't generating incremental value.

Retail media & new growth channels

Assess how retail media can connect