Pixie is hiring freelance Senior Java Developers for a long-term project with a leading financial institution. The role is 100% remote, with location listed as Madrid, and English proficiency at C1+ is required. We are seeking experts with extensive Java experience, strong Spring Boot capabilities, Kafka knowledge, and hands-on work with databases (Postgre SQL or Mongo DB) and Redis. Cloud exposure (AWS) and microservices experience are highly valued, along with testing mastery using JUnit 5 and #J-18808-Ljbffr