Create software_engineer_in_test.md

Updated director links

Merge pull request #10 from meetup/platform-ed

Create director_platform_engineering.md

Update director of product engineering role.

Merge pull request #9 from meetup/ml-director

Added Director ML to top-level README

Merge pull request #8 from meetup/ml-data-director

fixed header markdown

Merge pull request #7 from meetup/ml-data-director

removed specific names

Removed oncall language

Create director_engineering_ml_data.md

Merge pull request #4 from meetup/jd_for_dsl

Create data_security_lead_role.md