circuit breakers , Java, Design Patterns, C#, C++, Data Modeling, Object Oriented Design, Concurrency, Perl, Software Development Life Cycle, Testing, Code reviews, Runbooks, Caching, Build processes, Retry strategies, Backpressure, Source control management, Multi-tiered multi-threaded embedded or distributed software applications, Graceful degradation, Operations

Java, Design Patterns, Perl, Object Oriented Design, distributed software applications, Reliability, Scaling, multi-tiered applications