1.5Diversity of Skills Within a QA Team

A high-performing QA team is not five people with identical skills. It is a group with complementary expertise that collectively covers the quality spectrum.

Role	Focus	When to Hire
Manual / Exploratory Tester	Deep product knowledge, edge case discovery, usability	Always -- this is the foundation
Automation Engineer	Test framework design, CI/CD integration, maintenance	When manual testing cannot keep up with release velocity
Performance Specialist	Load testing, profiling, capacity planning	When performance is a competitive differentiator or SLA requirement
Security Tester	Vulnerability assessment, penetration testing, compliance	When handling sensitive data or facing regulatory requirements
SDET	Testability improvements, developer tooling, test infrastructure	When the team needs someone who bridges QA and development
QA Lead / Coach	Process design, mentoring, stakeholder communication	When the team reaches 3-4 QA engineers