Performance Optimization for Data-Heavy Web Applications
I improve responsiveness in complex frontends. Maps. 3D. Dashboards. Large SaaS.
Pablo L. A.
@pababalle
Senior software engineer focused on architecture and performance for data‑heavy frontends (maps, 3D, GIS, dashboards). I diagnose bottlenecks and implement targeted fixes to reduce main-thread work and stabilize rendering.
Example measurements
Representative metrics (placeholders).
Time to Interactive (TTI)
Main-thread blocking
Render time per frame
Interaction latency (INP)
When your app loads fast but still feels slow
Symptoms and root causes.
Without Optimization
- Main-thread blocking and frequent long tasks
- Frame drops and unstable FPS under real load
- High memory footprint causing OOM or freezes
- Slow interaction latency (poor INP)
- Hard-to-debug rendering regressions
With Optimization
- Less main-thread blocking
- Lower TTI
- Stable 60fps
- Lower INP
- Predictable render pipeline
Example measurements (placeholders)
Metrics are examples, not guarantees.
Services — Performance & Architecture
Profiling. Rendering. Data pipelines. One service: performance optimization.
Custom
TBD
Performance optimization
Profiling. Main-thread work reduction. Rendering and data-pipeline fixes.
- Trace & flamechart analysis
- Long-task removal
- Worker offload
Skills & Expertise
Senior performance engineer for complex, data-heavy frontends
Architecture, profiling, and targeted optimizations for maps, 3D visualizations, dashboards and large-scale SaaS frontends.
Architecture & Scalability
System-level reviews focused on data flow, caching, rendering pipelines and scaling frontend workloads reliably.
Performance Engineering
Profiling. Long-task removal. Metrics: TTI, INP.
Visualization & Rendering
WebGL, map rendering and 3D optimizations to maintain stable frame-rates under real-world datasets.
Typical problems I solve:
- Main thread blocking and long tasks
- Large JSON parsing that blocks rendering
- Heavy rendering workflows (maps, 3D) causing frame drops
- Excessive memory usage and leaks
- Interaction delays and poor INP
About Me
Pablo L. A.
Senior software engineer. Performance and architecture for data-heavy frontends. Profiling. Main-thread optimization. Scalable rendering and data pipelines.
Connect & Follow
Twitter/X
Threads on performance engineering, profiling, and system design
Connect for technical engagements and architecture reviews
GitHub
Open-source tools and profiling examples
Upwork
Hire for frontend performance and rendering work
Fiverr
Short audits and performance engagements
Gumroad
Technical notes and tools from real projects
Top Articles
Articles on performance, reliability and architecture.