Staff Applied Scientist (Perm or Contract)

London, United KingdomRemote

Responsibilities

What you’ll be doing? - Design and build models for campaign optimisation, working across metrics like CTR, CPA, and ROAS using publisher-side signals (cohort membership, contextual data, engagement) combined with advertiser outcome data. - Develop approaches to inventory allocation that account for audience quality, placement value, and supply dynamics. - Own your models end-to-end from conception through production monitoring.

experience with optimisation or bidding systems in programmatic advertising — within a DSP, SSP, ad server, or comparable platform.
You understand the mechanics of how campaigns are priced, paced, and optimised in practice. - Strong applied ML and statistical foundations.
You can design, evaluate, and iterate on models — and you know when a heuristic beats a neural network. - Production ML experience.

For a typical candidate who meets our requirements, we pay a base salary of £180,000 - £204,000.
Benefits - In this together: As a full-time employee, you'll become a shareholder with stock options, sharing in our collective success.
- Family Comes First: Primary caregivers receive up to 6 months of fully paid leave and secondary caregivers receive 3 months of fully paid leave to bond with their little ones.
- Upgraded Workspace: A £350 budget helps you create the perfect home office setup.
- Recharge & Refocus: Unlimited paid time off (with a minimum of 25 days + public holidays) ensures you get the rest you need.
- Comprehensive Care: Enjoy virtual GP visits, healthcare services, work-life consultations.
- Secure your future: Our pension plan with Penfold helps you secure your financial future (employer contributes 3%, employee contributes 5%).
Each year’s event promises to be an exciting opportunity for us to come together, reconnect with colleagues, and align on our shared vision for the year ahead.
Diversity, Equity & Inclusion At Permutive, we’re taking a thoughtful, intersectional, long-term approach to diversity, equity & inclusion.