Technical QA for Microservices: API Testing, Logs, and System Metrics

Modern software relies on complex microservice architectures, demanding that Quality Assurance professionals possess deep technical analysis skills beyond basic functional testing. This course provides the systematic thinking and practical techniques needed to confidently test distributed systems. You will learn how to leverage APIs, analyze logs, and interpret system metrics to consciously improve product quality and argue for necessary technical solutions, positioning you for a Mid-level QA role. What you'll learn: Understand the architectural principles of microservices and how they change testing strategy. Master techniques for testing APIs, including integration, negative testing, and basic contract verification principles. Apply systematic thinking to trace data flow and identify potential failure points across complex distributed components. Analyze logs, traces, and performance metrics to diagnose system behavior and pinpoint the root cause of defects. Practice designing comprehensive test plans that ensure high quality and stability in distributed environments. We begin with foundational concepts in system architecture and QA strategy, then move into hands-on analysis methods for APIs, logs, and observability data, culminating in strategies for advocating for quality improvements within a team. This course is designed specifically for Junior and Mid-level QA professionals who want to transition to a more technically advanced role. No prior experience with microservices is required, only basic QA knowledge. Start building your technical QA expertise today.