New Engineer Onboarding Sequence

Break down new engineer onboarding for this team into structured milestones:

Team Context:
{{team_context}}

Tech Stack:
{{tech_stack}}

New Hire Background:
{{hire_experience}}

Decompose into onboarding phases:

1. WEEK 1: ENVIRONMENT SETUP
   Day 1-2: Account provisioning and tool setup
   Day 3-4: Local development environment
   Day 5: First build and test run
   Checkpoint: Can run full test suite locally

2. WEEK 2: CODEBASE ORIENTATION
   - Architecture walkthrough sessions
   - Key service deep dives
   - Documentation review
   Checkpoint: Can explain system flow for main use case

3. WEEK 3: FIRST CONTRIBUTIONS
   - Good first issue identification
   - Pair programming sessions
   - First PR submission
   Checkpoint: Merged first PR with passing review

4. WEEK 4: EXPANDING SCOPE
   - On-call shadowing
   - Incident review participation
   - Independent task completion
   Checkpoint: Solo task completed with minimal guidance

For each phase provide:
- Specific tasks with owners
- Resources and documentation links
- Check-in meeting schedule
- Success criteria
- Common blockers and solutions