Performance Testing Engineer
Ensuring system performance and scalability through load testing
Performance Testing Engineer is a role in the QA Engineering family. It has 57 skills across 5 levels (from Junior to Principal). 138 skills are mandatory. Key domains: Programming Fundamentals, Backend Development, Database Management.
Technology Stack
Focus by Level
Writing load testing scripts. Running tests by scenarios. Collecting metrics. Preparing results reports.
Designing load scenarios. Bottleneck analysis. Metric correlation (CPU, memory, DB). CI/CD integration.
Performance testing architecture. Chaos engineering. Capacity modeling. Application profiling. Optimization recommendations.
Performance engineering strategy. SLA/SLO for performance. Coordination with development and SRE.
Enterprise performance strategy. Performance culture. Capacity planning at scale.
Skill Matrix
57 skills × 5 levels. Click on a cell for details.
AI-Assisted Development
4 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| GitHub Copilot | A | W | A | E | E |
| Cursor IDE | A | W | A | E | E |
| ChatGPT / Claude | A | W | A | E | E |
| Prompt Engineering for Code | A | W | A | E | E |
API & Integration
4 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| REST API Design | A | W | A | E | E |
| GraphQL Design | A | W | A | E | E |
| API Documentation | A | W | A | E | E |
| API Testing | A | W | A | E | E |
Architecture & System Design
1 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| System Design Fundamentals | A | W | A | E | E |
Backend Development
2 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Python Web Frameworks | A | W | A | E | E |
| Redis | A | W | A | E | E |
Cloud & Infrastructure
5 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Docker | A | W | A | E | E |
| Kubernetes Core | A | W | A | E | E |
| Terraform | A | W | A | E | E |
| AWS | A | W | A | E | E |
| Network Fundamentals | A | W | A | — | — |
Database Management
3 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| PostgreSQL | A | W | A | E | E |
| Database Indexing | A | W | A | E | E |
| Query Optimization | A | W | A | E | E |
DevOps & CI/CD
1 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| GitHub Actions / GitLab CI | A | W | A | E | E |
Observability & Monitoring
6 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Structured Logging | A | W | A | E | E |
| ELK Stack | A | W | A | E | E |
| Prometheus & Grafana | A | W | A | E | E |
| Custom Business Metrics | A | W | A | E | E |
| OpenTelemetry | A | W | A | E | E |
| APM Tools | A | W | A | E | E |
Performance Engineering
10 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| CPU Profiling | A | W | A | E | E |
| Memory Profiling | A | W | A | E | E |
| I/O & Disk Profiling | A | W | A | E | E |
| Network Profiling | A | W | A | E | E |
| Latency Optimization | A | W | A | E | E |
| Throughput Optimization | A | W | A | E | E |
| Resource Optimization FinOps | A | W | A | E | E |
| Database Performance Tuning | A | W | A | E | E |
| Benchmarking Tools & Methodology | A | W | A | E | E |
| Performance Budgets | A | W | A | E | E |
Programming Fundamentals
8 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Algorithms & Complexity | A | W | A | E | E |
| Data Structures | A | W | A | E | E |
| OOP & SOLID Principles | A | W | A | E | E |
| Design Patterns | A | W | A | E | E |
| Multithreading | A | W | A | E | E |
| Async Programming | A | W | A | E | E |
| Code Quality & Refactoring | A | W | A | E | E |
| Type Safety & Type Systems | A | W | A | E | E |
Security
3 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| OWASP & Application Security | A | W | A | E | E |
| Secure Coding Practices | A | W | A | E | E |
| JWT / OAuth2 / OIDC | A | W | A | E | E |
Testing & QA
8 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Test Pyramid & Strategy | A | W | A | E | E |
| Unit Testing | A | W | A | E | E |
| Integration Testing | A | W | A | E | E |
| E2E Testing | A | W | A | E | E |
| Load Testing | A | W | A | E | E |
| Chaos Engineering | A | W | A | E | E |
| Test Data Management | A | W | A | E | E |
| Test Environment Management | A | W | A | E | E |
Version Control & Collaboration
2 skills| Skills | Jun | Mid | Sen | Lead | Princ |
|---|---|---|---|---|---|
| Git Advanced | A | W | A | E | E |
| Code Review | A | W | A | E | E |
FAQ
What skills are needed for the Performance Testing Engineer role?
The Performance Testing Engineer role requires 57 skills, of which 138 are mandatory. Skills are distributed across 5 levels: from Junior to Principal. See full matrix.
How to advance to the next level in the Performance Testing Engineer role?
Use the Grade Calculator to assess your current level and get personalized recommendations. The system will show which skills need to be developed for the next level.
What tech stack is used in the Performance Testing Engineer role?
The stack includes 5 technologies at different levels. k6/JMeter, Grafana basics, Linux basics, HTTP/REST understanding, CSV/JSON data preparation, k6/Gatling, Grafana/Prometheus, Docker, InfluxDB, Distributed load testing, APM tools (Datadog/New Relic basics), k6/Gatling advanced, Custom metrics, Profiling tools (async-profiler, perf), Chaos engineering (Litmus), eBPF...
How does the community define requirements for the Performance Testing Engineer role?
Role requirements are shaped by the community through a proposal system. Any member can suggest changes that go through voting and expert review.