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About the Role
The Ads ML team builds and maintains the machine learning models powering Deliveroo's advertising product. This role is central to driving the migration of ads from cost-per-click (CPC) to cost-per-order (CPO), a cutting-edge problem with few existing solutions.
Responsibilities
- Own the design and execution of the CPC-to-CPO migration, including the core open question of whether the system stays CPO-facing externally while optimising CPC behind the scenes, or some hybrid of the two
- Build and improve the bidding surface: goal-based automated bidding, Target CPO, optimised CPC, and Target ROAS
- Own yield management tied to ROS targeting
- Partner daily with the DoorDash US team to align on approach across markets
- Set technical direction for the domain
Requirements
- Expertise in ad economics, marketplace bidding, or auction theory
- Direct working experience with optimised CPC, target CPO, goal-based automated bidding, and target ROAS
- Strong self-driven leadership baseline — you'll be setting direction in an ambiguous space, not executing against an established one
- 7+ years writing production code in Python; solid ML fundamentals in ranking, recommendation systems, or bidding/auction systems
- A bias for simplicity and a focus on shipping work with measurable business impact
- Strong cross-functional communication — you'll be working closely with Product, Commercial, and the wider DoorDash team
Skills
- Python
- Machine Learning
- Ranking
- Recommendation Systems
- Bidding Systems
- Auction Systems
- Ad Economics
- Marketplace Bidding
- Auction Theory
- Optimised CPC
- Target CPO
- Goal-based Automated Bidding
- Target ROAS
- Yield Management
- ROS Targeting
- Cross-functional Communication
Location
- UK
Work Type
- Full-time
Experience Level
- 7+ years
Benefits
- Competitive salary
- Equity options
About the Company
- Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition.
- Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team.
- At Deliveroo, you'll do work that matters—solving real-world problems in a three-sided marketplace that’s constantly evolving. We’re food lovers, problem solvers, community builders and more, brought together by a shared drive to make things better.
- Work on a complex, always-on marketplace that impacts millions every day.
- Ship, test and improve ideas quickly in a low-hierarchy, high-ownership environment.
- Take on big, ambiguous problems and accelerate your career with strong support.
- High standards, collaboration, flexible working and continuous learning.
- At Deliveroo, we know that a great workplace reflects the world around us and that true diversity and inclusion make us stronger, more creative, and better at what we do. We’re committed to fostering an environment where everyone can do their best work and feel they belong.
Equal Opportunity
- We believe in equality of opportunity and welcome candidates from all backgrounds regardless of age, gender, ethnicity, disability, sexual orientation, gender identity, socio-economic background, religion, or belief.
- If you have a disability or long-term health condition and need support to apply for one of our roles, or require any reasonable adjustments during the recruitment process, you’ll have the opportunity to let us know once you’ve submitted your application. We’ll share details on how to request support so we can ensure you have a fair and equitable experience.