**Job summary** + Spring internals + Spring upgrades version 2.6 migrating to 3.0 and 3.2 + Java 11 to Java 17 upgrade experience + Jersey + Understanding of Spring Security + Understanding of OAuth US Tech Solutions is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.