All Services Programming & Development Software Development $25/hr · Starting at $25 Leon is a back-end developer with 3 years of experience working with system development companies. He specializes in using Java, C and C++ to create end-user oriented systems. About $25/hr · Ongoing Download Resume Leon is a back-end developer with 3 years of experience working with system development companies. He specializes in using Java, C and C++ to create end-user oriented systems. Skills & Expertise AndroidBack End DevelopmentCC++CreativeJavaSoftware DevelopmentSystems Engineering 1 Reviews Sandra 180 says, Completed task in a timely manner. for Survey about Freelance Work on May 15, 2019 Browse Similar Freelance Experts Content WritersResearchersJava DevelopersC ProgrammersC++ DevelopersBack End DevelopersFreelance WritersSoftware Developers