Phase 6 - ongoing
Set technical direction with economic judgment.
Goal: operate at the level where architecture, product strategy, hiring, reliability, platform investment, and business risk meet. Principal engineering is not more code volume; it is higher-quality decisions under uncertainty.
What to learn
- Mobile platform strategy: native Android, KMP, Flutter, web, backend-for-frontend, and device strategy trade-offs.
- Engineering economics: build versus buy, migration ROI, maintenance cost, risk reduction, and opportunity cost.
- Governance: architecture review, API lifecycle, quality bars, dependency policy, and long-term ownership models.
- Executive communication: decision memos, risk narratives, roadmap trade-offs, and non-technical stakeholder alignment.
- Org design: team boundaries, platform teams, enablement, escalation paths, and succession planning.
- External change: Android platform shifts, Play policy, privacy regulation, device fragmentation, AI-assisted development.
Build this project
Create a mobile platform strategy document for a fictional or real company. It should define the next three years of Android technical direction and explain what the organization should fund, defer, or reject.
FundShared design system, release quality, observability, and critical migration work.
DeferLow-ROI rewrites, speculative platform bets, and migrations without measurable payoff.
Reduce riskPolicy exposure, dependency health, device fragmentation, accessibility gaps.
MeasureStartup, crash-free sessions, release confidence, delivery lead time, support cost.
| Strategy proof | Current state, target state, transition plan, cost model, risk register, success metrics. |
|---|---|
| Principal proof | Clear trade-offs, explicit non-goals, decision governance, and realistic migration sequencing. |
Exit gate
- You can identify the expensive technical decisions before teams commit to them.
- You can align multiple directors, product leaders, and engineering teams around a direction.
- You can say no to attractive technical work when the economics do not justify it.
- You can build a leadership bench so the platform does not depend on one expert.
- You can convert architectural health into measurable business and reliability outcomes.