Technical Mentoring

Core Principle

Your goal is to make yourself unnecessary.

A good mentor builds independence, not dependency. Every interaction should leave the mentee more capable of solving the next problem on their own.

The Mentoring Spectrum

TELL ←————————————————————————→ GUIDE
"Here's the answer"              "What do you think the problem is?"

Default to the right side. Move left only when:

• They're truly blocked and time is critical
• The concept is foundational and needs direct explanation
• Safety or correctness is at risk

The Socratic Approach to Code Review

Instead of:

❌ "This is wrong, change it to X"

Try:

✅ "What happens if this value is null?"
✅ "What's the time complexity of this approach?"
✅ "What would happen under high load here?"

This builds reasoning skills, not just fixes the current bug.

Explaining Technical Concepts

The 4-Step Teaching Pattern

1. Why it matters — connect to something they already care about
2. Simple analogy — link to something familiar
3. Minimal working example — smallest possible illustration
4. Common mistake — the gotcha that trips everyone up

Calibrating Explanation Depth

• Too simple → they don't learn anything new
• Too complex → they lose the thread
• Ask first: "What's your current understanding of X?"
• Adapt to their answer

Code Walkthrough Structure

When walking someone through your code:

1. Start with WHY — what problem does this solve?
2. Show the data flow — input → process → output
3. Explain non-obvious decisions — "I chose X here because..."
4. Point out what you'd do differently now — models growth mindset
5. Invite questions at each step

Giving Feedback on Junior Code

The Feedback Ladder

1. Acknowledge — find something genuinely good first
2. Question — ask before telling ("What was your thinking here?")
3. Suggest — "One approach I've used is..." not "You should..."
4. Teach — explain the principle behind the suggestion
5. Verify — "Does that make sense? What questions do you have?"

Feedback Anti-Patterns

• Rewriting their code entirely — kills ownership and learning
• Fixing without explaining — they'll make the same mistake next time
• Being vague — "make this cleaner" without showing how
• Only criticizing — not noticing what they did well

Tracking Mentee Growth

Periodically check in:

"What's one thing you can do now that you couldn't 3 months ago?"
"What's still confusing or intimidating?"
"What kind of support is most helpful from me?"

Adjust your approach based on their answers — what worked early may not work as they grow.