Having worked across the software stack from the lowest to the highest, I have developed expertise of working with existing code base and adding substantial features in the course of my work.
Expertise involves development of new features, changing/modifying existing features of SOA (Service Oriented Architecture) based telecom platform - which is used as a middle-ware for enterprise telecom application services.
Most of my career has been with C++ as development language based on AIX/HP/SUSE OS environment.