Mentoring engineers
Mentoring converts your experience into their capability. The core tension: doing it for them is faster today and slower forever; the craft is calibrated struggle: enough support to prevent drowning, enough difficulty to force growth.
Method
- Anchor on their goal, made concrete. "Senior in 18 months" decomposes into observable capabilities (leads a project end-to-end, unblocks others, writes designs that survive review: see staff-engineer and engineering-manager-role ladders for the vocabulary); write the 2-3 current development edges down and revisit quarterly (see one-on-one-meetings' career cadence). Mentoring without a target degrades into pleasant chat.
- Teach by question first. "What have you tried? What does the error actually say? What would you test to distinguish those theories?" (see scientific-debugging's method: you are installing it): the goal is their reasoning loop, not this ticket's fix. Give answers freely for trivia and true blockers; give questions for anything that builds judgment. Tell them which mode you are in; mystery Socratic method reads as withholding.
- Assign stretch with a safety net. Work at the edge of their ability (first design doc, first incident lead, first gnarly migration: see design-doc-google-style, incident-commander-role for the scaffolding), with checkpoints framed as the norm ("everyone's first design gets three drafts") and failure containment sized so mistakes teach without maiming (see automation-guardrails' blast-radius thinking, applied to growth). Shielding people from all hard work is the quiet way seniors stunt juniors.
- Feed back specifically, both directions. Praise named behaviors ("your PR description let me review in ten minutes": see giving-feedback's specificity rule) so they compound; correct in private, promptly, with the situation-behavior-impact shape. Solicit feedback on your mentoring too: "what should I do differently?" models the receiving skill (see receiving-feedback).
- Sponsor, not just advise. Say their name in rooms they are not in: the visible project, the conference slot (see conference-talks), the review panel; sponsorship moves careers where advice only orients them (see promo-packet: your evidence of their impact belongs in it). Track that stretch opportunities distribute fairly across the team, not to whoever asks loudest (see hiring-loop-design's bias vigilance, internally).
- Transfer ownership progressively. Watch-me, then do-together, then do-while-I-review, then own-it: per capability; the endpoint is them mentoring the next person (see agent-handoff-protocol's spirit, human edition). A mentee still dependent on you after a year is a mentoring failure wearing loyalty's clothes.
Boundaries
- Mentoring is not performance management: capability gaps that threaten someone's role belong to their manager through formal channels (see one-on-one-meetings' boundary), and mixing the two poisons the safety mentoring needs.
- Respect the mentee's goals over your template; the path you took is one sample, and "become me" is not a development plan.
- Time-box the investment honestly (an hour a week, bounded office hours); resentful over-commitment ends mentorships worse than honest limits do.