Seeking a Senior Software engineer position.

Principal role adding new and maintaining legacy components of a physical security appliance.Designed a Ubuntu Linux daemon to integrate intrusion panels into the security appliance.Wrote full documentation including UML static, state and sequence diagrams.Used design patterns (Abstract factory, Factory function, RAII, Facade, Reactor, etc.)Implemented daemon in C++ using STL, POCO, libpq and pqxx libraries. Converted legacy daemon from fork() / multiprocess to POSIX threads.Added significant features to a daemon that integrates intelligent locksets.Created multithreaded, production quality software that scales to thousands of devices.Designed and implemented database tables, triggers, and constraints. in Postgres DDL and DML.Enhanced an MVC controller and view using C++, SQL, pqxx, Postgres and PL/pgSQL.Added new MVC user pages using JavaScript, JQuery, and JSON.Maintained an XML based REST API. Tested API with Postman.Provided Tier 3 customer and internal support when requested and approved by management.Worked in Agile cross functional teams.

Designed and Implemented, with other team members, a high performance, multi-node, multiprocessing and multithreaded scalable delta compression engine that runs on Red Hat Linux.Created components to manage Sun Grid Engine (SGE) job flow.Created monitoring applications and scripts to keep SGE running without human intervention.Managed the database schema. Wrote complex functions in PL/pgSQL.Provided Tier 3 customer and internal support when requested and approved by management.Worked in Agile cross functional teams.