Backend Developer: Fulltime $110K - $125K Per Annum San Francisco, CA Required Skills & Qualifications: Strong knowledge of Java SE/EE.Experience with backend frameworks such as Spring Boot, Hibernate, or JPA.Proficient with relational databases (MySQL, PostgreSQL) and/or NoSQL databases (MongoDB, Cassandra).Understanding of RESTful API design principles.Familiarity with version control tools (Git).Experience with build tools like Maven or Gradle.Good understanding of multi-threading, concurrenc