Senior Software Engineer, Ads Tech

In PayPal’s Ads Tech team, you will help design and build key parts of a next‑generation advertising platform that combines AI, large‑scale systems, and PayPal’s merchant insights. You will shape the technical roadmap and deliver reliable, scalable backend systems. You’ll work in a collaborative, egoless culture focused on delivering meaningful business outcomes. This is a greenfield opportunity to impact how advertisers reach PayPal’s merchant and consumer base and to scale across markets.

• generous paid time off
• healthcare coverage for you and family
• hybrid work model (3 days in office, 2 days remote)
• flexible benefits and wellbeing programs
• financial security resources
• inclusive culture and belonging

• Design and develop core components of PayPal’s advertising platform
• Contribute to the technical roadmap and translate complex requirements into scalable designs
• Build cloud-native backend systems with emphasis on performance, resilience and maintainability
• Champion software craftsmanship and coding standards to improve code quality
• Drive innovation and incremental improvements by challenging existing approaches
• Collaborate with Product, Engineering and cross-functional teams to navigate ambiguity and deliver outcomes
• Help create fault-tolerant systems for high availability and disaster recovery
• Share knowledge and contribute to an inclusive, collaborative engineering culture

• 10+ years of software development experience with emphasis on functional programming
• Proficiency in at least one functional programming language, ideally Scala and its Typelevel ecosystem
• 5+ years designing and architecting scalable backend systems (cloud-native, microservices or serverless)
• Experience with functional effect systems such as Cats Effect or ZIO
• Hands-on experience with major cloud platforms (AWS, Google Cloud or Microsoft Azure)
• Experience building large-scale, high-performance systems
• Experience working in Agile or Scrum environments

• collaborative mindset
• constructive feedback
• continuous learning
• Scala
• functional programming
• cloud-native architectures