Prompt Engineering

Prompt Engineering Learning Path: 90-Day Plan for 2026

A disciplined 90-day Prompt Engineering learning path with weekly deliverables — designed for working professionals with 10-15 hrs/week.

Updated 15 Jan 2026 10 min readBeginner AI & Machine Learning

Foundation

This phase should deliver a portfolio artifact you can show:

  • Model behavior
  • System prompts
  • Temperature & sampling

Patterns

This phase should deliver a portfolio artifact you can show:

  • Few-shot
  • CoT
  • Self-consistency
  • Structured output

Production

This phase should deliver a portfolio artifact you can show:

  • Evals
  • Guardrails
  • Cost & latency tuning

Weekly cadence

How to structure each week:

  • 3-4 focused study blocks
  • 1 project checkpoint
  • 1 hour of review + notes
  • One community post or share

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