Job Overview
The QA Engineer (Quality Assurance) is the guardian of software product quality. Expert in testing and validation methodologies, he designs and executes exploratory and automated test plans to guarantee application reliability, performance and security. In mature technical companies, the QA engineer is integrated from the start of development cycle (shift-left testing). His goal: ensure not only that the product works, but that it meets performance, security and user experience requirements. The role evolves rapidly with DevOps and automation boom: the modern QA engineer masters programming and CI/CD tools.
QA vs QC vs SDET
Differences between QA roles
| Critère | QA Engineer | SDET |
|---|---|---|
| Training | Bachelor to Master's | Master's required |
| Main focus | Overall quality & automation | Test tools development |
| Programming | Intermediate to advanced | Expert |
| Automation | Required expertise | Core skill |
| Average salary | 38-65K EUR | 45-75K EUR |
Main Missions
Test plan design
Analyse technical and functional specifications to identify critical test cases. Design comprehensive test strategies (functional, non-functional, regression, performance). Define acceptance criteria and validation scenarios.
Exploratory testing execution
Conduct manual exploratory tests to identify bugs and usability issues. Validate new features before production release. Test critical user journeys. Document discovered anomalies with precision.
Test automation
Develop automated test scripts (Selenium, Cypress, Playwright, Jest). Create automated regression test suites. Integrate tests into CI/CD pipelines. Maintain and optimise existing tests.
Performance and security testing
Conduct load and stress testing (JMeter, Gatling, k6). Identify bottlenecks and performance issues. Execute basic security tests (SQL injection, XSS, CSRF).
Analysis and reporting
Track quality metrics (coverage rate, bug density, regression rate). Analyse trends and identify risk areas. Produce clear quality reports for stakeholders.
Collaboration and continuous improvement
Work closely with developers and product managers. Train teams on quality best practices. Evangelize testing culture and quality across teams.
Salary Grid 2026
| Experience | Startup/Scale-up | Editor/IT Services | Large enterprise | Paris/IDF |
|---|---|---|---|---|
| Junior (0-2 years) | 35-42K EUR | 32-38K EUR | 38-45K EUR | +15-20% |
| Confirmed (3-5 years) | 42-52K EUR | 40-48K EUR | 45-55K EUR | +20-25% |
| Senior (5-8 years) | 52-65K EUR | 48-58K EUR | 55-68K EUR | +25-30% |
| QA Lead (8+ years) | 60-80K EUR | 55-70K EUR | 65-85K EUR | +30-35% |
Important Certifications
Certifications valued by recruiters
- ISTQB Foundation Level
Internationally recognised standard, essential to start
- ISTQB Advanced Level
For confirmed professionals: Test Manager, Technical Test Analyst
- Framework certifications
Selenium WebDriver, Cypress, Playwright certifications
- Agile Testing
Certified Agile Tester, ICAgile Testing
- Security Testing
Certified Ethical Hacker (CEH), OWASP certifications
- Performance
JMeter Certification, Gatling Academy
Frequently Asked Questions about QA Engineer Role
What is the difference between QA and QC (Quality Control)?
Does a QA engineer need to know programming?
Will manual testing disappear?
Can I transition from QA engineer to developer?
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