Engineering – Embedded SONET/SDH

 QUALIFICATIONS

• At least 5 years relevant experience with SONET, SDH or OTN
• Experience with SONET/SDH protection switching
• Excellent C/C++ and object oriented programming skills
• Understanding and awareness of the embedded product lifecycle
• Capable of writing software that directly interfaces with hardware
• Good communication and problem-solving skills

Candidates who are additionally familiar with any of the following will have a significant advantage:

• Linux and programming for Linux
• Knowledge of Framers, SERDES, and similar embedded devices
• Understanding of platform boot-up and device drivers
• Exposure to Next Generation programming (ie Python, Perl, Java; some Tcl/Tk)
• Telcordia GR-253 requirements (SONET)
• ITU G.707 and G.783 recommendations (SDH)
• ITU G.709 and G.798 recommendations (OTN)
• SONET/SDH Ring topologies specifically UPSR or BLSR

JOB DESCRIPTION

Design of device drivers for SONET/SDH and OTN components. This involves designing, implementing, testing, and documenting the software.

• Hardware configuration (Framers, SERDES, etc.)
• Real time status monitoring and reporting (Faults and PM)
• Design of time critical algorithms (Protection Switching)
• Resiliency and high availability software

Design of hardware abstraction layer software. This allows other applications to use device drivers in a consistent way across different platforms.

• Consistent modeling of complex components
• Uniform user interfaces (APIs)
• Reusable code