Understanding Mid‑Level and Senior Test Engineer Roles, Certification Benefits, and a Comprehensive Testing Skill Map

1. Background

Over the past year, after two years of technical research, we have compiled guidance on the evaluation principles and level classification for professional testing engineers, outlining required abilities, responsibilities, and the distinctions between high, medium, and low levels.

During interviews, it became clear that a universal testing skill map is needed for reference.

2. How Mid‑Level and Senior Are Defined

Traditionally, "senior" implies deep, comprehensive, and strategic technical knowledge, while "mid‑level" refers to solid foundational and core technical skills. In practice, senior roles focus more on overall business direction, project management, and team leadership, whereas mid‑level engineers handle day‑to‑day technical tasks.

Certificates have become important leverage for promotion and salary increases. For testing professionals, the "Software Test Engineer" certificate (mid‑level) and the "Information System Project Management" certificate (senior) are recommended.

Showcase competence : Preparing for certification improves knowledge mastery and benefits career development.

Promotion and salary increase : 79% of software employers favor candidates with certifications, using them as criteria for raises and internal promotions.

Qualification substitution : Certifications can substitute for certain job titles, aiding in housing points and other policy benefits.

Company qualification : Enterprises seeking larger projects must have qualified staff; certifications help meet these requirements.

Personal affiliation : Previously, companies paid for employees to obtain certificates, though this practice has declined.

Policy support : Continuing education deductions allow up to ¥4,800 per year for degree‑related education and ¥3,600 for professional qualification training.

3. General Testing Skill Map and Professional Skills

The skill map includes three dimensions: general professional knowledge, specialized skills, and requirements. Essential professional skills for a test engineer include:

Test strategy formulation

Test planning

Test case design

Defect tracking and reporting

Test report writing

Automation testing

Performance testing

Security testing

Database testing

API testing

Test platform usage

Automation Testing

Automation is divided into interface automation, UI automation, and performance automation. Common tools:

Automation Direction

Interface Automation

UI Automation

Performance Automation

Common Tools

JMeter

,

httprunner

,

request

Web:

Selenium

App:

Appium

JMeter

Typical rollout order: start with interface automation, then performance automation, and finally UI automation.

Performance Testing

Popular tools include JMeter and LoadRunner . Beginners often start with JMeter due to its widespread adoption.

Learning path: understand concepts → choose a tool (e.g., jmeter ) → master advanced features (parameterization, assertions) → learn performance analysis and optimization → practice.

Security Testing

Security testing engineers are in demand, especially in first‑ and second‑tier cities, and can command higher salaries. Key tools:

Burp Suite : intercepts and modifies HTTP requests/responses, provides attack modules, vulnerability scanning, and reporting.

AppScan : explores URLs, modifies parameters, and detects security flaws using built‑in rule sets.

4. Summary

The two main “passwords” for test engineer career advancement are certification (soft‑exam certificates) and mastery of testing technologies (automation, performance, and security). Certifications serve as both qualification and a guarantee for professional growth, while technical expertise improves efficiency, reliability, and security of software products.