[Canonical - Sustaining Engineering Team]

A Software Engineer in the Sustaining Engineering Group help in driving customer and community bugs into resolution by troubleshooting, fixing bugs, providing guidance & workarounds, for different areas of expertise which may cover areas such as: kernel, drivers, virtualization, network, cloud, storage setups, ... and physical/virtual environment orchestration. Also working with other members within Canonical Ubuntu Engineering, Cloud Development Operations Team, Ubuntu User and Developers Community, Upstream Communities, ...

[Ubuntu - SRU developers]

SRU Developers work on stable release updates ("SRUs") for Ubuntu and can upload them directly, regardless of component (main, universe, etc) or packageset.

[Ubuntu - Contributing Developer]

The Ubuntu Contributing Developers are collectively responsible for the maintenance of most of the packages in Ubuntu.

[Ubuntu - Community Member]

Significant, sustained, and continued contributions in the area of Ubuntu Development.