Who are OnBuy?
OnBuy is an online marketplace on a mission to be the best choice for every customer, everywhere.
Recently named one of the UK's fastest-growing tech companies in the Sunday Times 100 Tech list.
We are proud of our achievements, but we remain laser focused on our mission and the huge joint effort needed to succeed.
Working at OnBuy
We are a team of driven and motivated people who thrive when working at pace. To succeed at OnBuy you need to take charge and fully own your responsibilities, rolling your sleeves up when needed to get it done.
You will be surrounded by so much opportunity, but must possess the ability to stay focused and prioritize ruthlessly.
Most importantly, you will thrive in an ever-changing environment as we are constantly evolving.
At OnBuy, you’re not just a number or another cog in a machine. We are creating something special and you have the opportunity to affect meaningful change and have your voice heard. We are a close team, and we have opportunities to learn and grow as OnBuy evolves.
About the Role
We are hiring a Head of Performance Marketing to own and scale OnBuy’s performance marketing engine.
This role is accountable for delivering GMV growth at target contribution across a ~£200m+ portfolio through segmentation, systems, data activation, and disciplined experimentation.
This is not a brand marketing role. This is a trading + systems role focused on building a scalable growth engine.
What you Will Own
* Full ownership of performance marketing across Google Shopping, Bing, Affiliates (incl. CSS), CRM, and selected paid social channels.
* Google/Bing Shopping solution ownership, evolution, governance, and performance.
* Channel mix, budget allocation, and contribution guardrails.
* Propensity model activation: how predictive signals are tested, trusted, and operationalised.
* Measurement truth: incrementality, halo, MMM, attribution.
* Vendor and tooling strategy: controlled testing of platforms vs internal systems.
* Weekly GMV, contribution, and spend performance across all markets.
* Performance marketing team structure, hiring, and development.
Key Responsibilities
* Commercial & Strategic Leadership
* Segmentation & Activation
* Channel Strategy
* Measurement & Experimentation
* Operating Model
* Team Leadership
What This Role Is Not
This is not a brand or ATL marketing role. This is not a passive stakeholder role. This is not an agency‑management‑only role.
Qualifications
* Senior performance marketing leadership experience in ecommerce or marketplace environments.
* Deep practical expertise in Google Shopping and large‑scale catalogue activation.
* Experience operating at scale in a large SKU environment.
* Strong understanding of incrementality, attribution, and experimentation.
* Deep understanding of segmentation and incrementality.
* Experience working alongside data science and engineering teams.
* Strong commercial and data‑led mindset.
* International experience across UK and EU markets. US experience would be advantageous.
* Comfortable operating at both strategic and hands‑on levels.
* Proven experience in leading a lean performance marketing team.
Compensation and Benefits
* Salary: £110,000–£130,000 plus significant equity depending on experience.
* Company equity.
* 25 days annual leave plus bank holidays.
* 1 extra day off for your birthday.
* Employee Assistance Programme.
* Perks at Work benefit platform.
* Opportunities for career development and progression.
This role is UK remote, or will be hybrid if you live near our Manchester or Bournemouth offices.
Our Commitment
OnBuy is an equal opportunities employer. We are dedicated to creating a fair and transparent workforce, starting with a recruitment process that does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age.
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