PO
Performance Optimization IT skill profile
Also known as Performance Tuning · Optimization · Performance Engineering
What recruiters should know
Performance optimization is a premium skill that commands salary premiums at senior engineering levels. With AI inference costs being significant ($200K+ in annual LLM API costs for large platforms) and Google's Core Web Vitals directly affecting SEO, performance engineering is increasingly a business-critical function. Tools include profilers (py-spy, async-profiler, Chrome DevTools), load testing (k6, Locust), and observability platforms (Datadog, Grafana). Senior engineers with demonstrable performance wins are preferred over those without.
In plain terms
Improving software and system performance and efficiency
Industry demand
Overall level
high
Trend
stable
Top hiring sectors
- Consumer Web Applications
- FinTech (Low Latency)
- Gaming
- AI/ML Inference
- E-commerce
Proficiency ladder
What each level looks like in the work — behavioural markers, not job titles.
At this level, a developer can…
- Basic profiling
- Common bottlenecks
- Caching
- Query optimization