Principal Engineer, Cloud Data Infrastructure

PayPal PayPal · Fintech · San Jose, CA +2 · Software Engineering

Principal Engineer for Venmo's data platform infrastructure and performance engineering. Sets technology vision, architectural direction, and provides technical leadership for databases, data pipelines, messaging systems, caching, and performance engineering. Focuses on AI-first engineering practices and mentoring.

What you'd actually do

  1. Increases results & effectiveness of all software engineers in a large domain
  2. Sets the technology roadmap for a domain
  3. Adapts their role to the need, selecting the most effective means of realizing their technical goals
  4. Provides advice and counsel to senior executives within PayPal, influencing the development of multi-year business strategies
  5. Exercises wide latitude in determining objectives and approaches to assignments and takes initiative to achieve results

Skills

Required

  • 10+ years relevant experience and a Bachelor’s degree OR Any equivalent combination of education and experience.

Nice to have

  • Background in financial technology, payments processing, or regulated industries.
  • Experience supporting transaction processing systems requiring extreme reliability and millisecond-level response times.
  • Familiarity with resilience engineering, failure injection testing, and business continuity planning.
  • Knowledge of modern data pipeline frameworks and real-time analytics architectures.
  • History of mentoring and growing senior/staff-level engineers into technical leadership roles.
  • Experience integrating AI/ML workflows into data platform infrastructure including vector databases, feature stores, or LLM serving infrastructure.

What the JD emphasized

  • AI/ML workflows into data platform infrastructure
  • vector databases
  • feature stores
  • LLM serving infrastructure
  • extreme reliability
  • millisecond-level response times