• Technology knowledge + mastery (experience). See Both theory and practice are essential for skill development
• Business domain knowledge (not hireable; have to grow inside the company).
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  • Solve users' problems, not technology problems
  • Examine the architecture with value stream mapping
• Communication skill, emotional intelligence, leadership

Related:

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• Positive-sum games to play within an organisation
• Components of power

References

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https://martinfowler.com/articles/value-architectural-attribute.html When people look at the growth of technical leaders, most attention tends to go into “hard” technical subjects […] The much more difficult area of “soft” skills become increasingly important as folks rise up the leadership ladder. … ensure technical leaders have a firm understanding of the business they operate in, and how value is generated by the various players in the domain […] Software development's value is rooted in how much software is deeply entwined in the activity of the enterprise it supports.