Test ENgineer who takes care of quality control of the product or project also needs to contribute more for SQA in that company. Pl. add on your comments what a test engineer should contribute for SEPG ( software engineering process group)
Though the Test Engineer maynot be a part of SEPG, his/her suggestions are most critical for successfully improvement ( Level 5 of SEI CMM aims at Continuous Improvement of Process ) of Test Process.
Afterall, when any person in the organization can suggest for process improvements, there is a major role for a Test Engineer in SEPG.