10 Essential Lessons for Growing as a Software Engineer and Leader

1. Start Small and Expand

When creating a new system or adding features, begin with a minimal version and iteratively solve problems until satisfied, learning along the way rather than attempting to achieve everything at once.

2. Change One Thing at a Time

Address failures by investigating a single issue per iteration, using short cycles and ensuring each problem is resolved before moving to the next, including refactoring before adding new functionality.

3. Add Logging and Error Handling Early

Implement logging and error handling from the start so you can understand program behavior and handle exceptions as soon as possible.

4. Ensure Every New Line of Code Executes at Least Once

Test each new piece of code—preferably with automated tests—to verify it works as intended before considering it complete.

5. Perform Module Tests Before Full Integration

Testing individual modules first saves time and simplifies integration by ensuring component interfaces match and issues are isolated.

6. Learn in a Safe Environment

Making mistakes is essential for learning; create a space where errors are tolerated so developers can experiment without fear of negative repercussions.

7. Anyone Can Be a Leader

Leadership is demonstrated through actions, not titles; individuals can show leadership by taking initiative even without formal authority.

8. Architects Should Write Code

Technical leaders should spend at least 30% of their time coding to build trust, understand system constraints, and make better architectural decisions.

9. Courage Is Needed for Change

Embracing risk and failure is vital for leadership and innovation; without risk, significant rewards are unlikely.

10. Keep Personal Records and Benefits Secure

Maintain your household registration, pension, medical insurance, and housing fund records, as they become crucial for long‑term financial stability.

11. Avoid Frequent Hardware Upgrades

Resist the urge to constantly replace laptops, phones, and other electronics, as excessive spending can erode financial health.

12. Language Skills, Education, and Certifications Matter

Proficiency in foreign languages, higher education, and professional credentials can open higher‑pay opportunities, especially in multinational companies.

13. Write Clean, Beautiful Code

Architects must be excellent programmers capable of producing clear, elegant, and functional code with minimal bugs.

14. Develop Strong Abstraction Skills

Being able to abstract complex requirements into orthogonal concepts is essential for designing maintainable systems.

15. Build Technical Leadership Influence

Use technical expertise to earn respect and influence within a team, gradually building a personal brand as a trusted senior engineer.