Ask HN: Tools for Noob to Polished IC

Hobbyist/grad/nOOb to polished IC: What are the learnable tools that can best help an early hire transition to a productive IC in *your own* type of software team? Very curious if this tends to be highly uniform or highly varied.

Considerations for starters: Git with team-based workflow Abstraction/modularity Algorithms Test-driven development Scrum/agile Extreme expertise in a particular language or framework

Let’s assume the person is otherwise reliable, respectful, enthusiastic, communicates well, etc.