CareerPlan

Senior Software Engineer, Ads Tech

London, County London, England, United KingdomFull-time2026-11-09 → 2026-11-10

Core

Design and develop core components of PayPal's next-generation advertising platform, combining advanced AI and large-scale systems engineering.

Role type

Senior Software Engineer (Ads Tech)

Builds

Cloud-native backend systems, scalable microservices, and fault-tolerant infrastructure for the advertising platform.

Domain

Fintech / Advertising Technology

Deliverable

production ML models

Required skills

Functional programming, Scala, Typelevel ecosystem, Cats Effect, ZIO, cloud-native architecture, microservices, serverless architectures, fault-tolerant system design, disaster recovery planning, high-performance system design, AWS/Google Cloud/Azure, Agile/Scrum

Preferred skills

Python development, machine learning context, advertising technology knowledge, payment processing knowledge, regulatory considerations

Technologies

Scala, Cats Effect, ZIO, AWS, Google Cloud, Microsoft Azure, Python

Responsibilities

Design and develop core components of the advertising platform; Contribute to the technical roadmap and turn complex requirements into scalable software designs; Build cloud-native backend systems with a focus on performance, resilience, and maintainability; Champion software craftsmanship and coding standards; Drive innovation and incremental improvements; Collaborate with cross-functional teams to deliver business outcomes; Help create fault-tolerant systems designed for high availability and disaster recovery.

Seniority

Senior, hands-on IC