Senior Ruby Engineer — Remote, Microservices & Platform

Pfizer in Antioch, CA is hiring a senior engineer to advance our microservices platform. You’ll own estimates, ship incremental improvements, and ensure cross-environment consistency across Python configs and services. The role requires at least 5 years of proven delivery, a writer's tone for high-stakes emails, and the willingness to relocate to Antioch or work remotely. Pfizer offers mentorship and real benefits alongside a flexible tech-forward culture.