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Katarzyna Fojcik

PROFILE

Katarzyna Fojcik

Worked on backend and deep learning infrastructure across HabanaAI/vllm-fork and Gaudi-based repositories, focusing on robust model deployment and scalable long-context processing. Addressed device-specific model loading and improved RotaryEmbedding cache logic in HabanaAI/vllm-fork, reducing runtime errors and supporting LoRA experimentation. Later, enhanced long-context prompt bucketing in vllm-gaudi and red-hat-data-services/vllm-gaudi, enabling dynamic generation of prompt buckets for large-context queries and increasing input capacity. Applied Python, PyTorch, and algorithm design skills to synchronize logic across repositories, validate bucket-generation flows, and maintain strong code quality through collaborative, signed-off commits, supporting production readiness and future context expansion.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

4Total
Bugs
2
Commits
4
Features
2
Lines of code
97
Activity Months2

Work History

January 2026

2 Commits • 2 Features

Jan 1, 2026

January 2026 focus: deliver cross-repo enhancements to long-context prompt bucketing for large-context queries, enabling generation of missing buckets up to max context length and improving performance and scalability. Achievements span two Gaudi-backed repos with aligned logic via cherry-pick, validated bucket-generation flow, and strong commit hygiene across teams. Business impact includes higher input capacity, reduced edge-case failures, and a foundation for future context expansion.

August 2025

2 Commits

Aug 1, 2025

Monthly summary for 2025-08: In HabanaAI/vllm-fork, delivered two high-impact bug fixes that improve deployment stability and inference correctness. The changes ensure correct device loading for weights (--weights-load-device) and robust cos-sin cache handling in RotaryEmbedding for long contexts and LoRA offsets. Together, these fixes enhance production readiness, reduce runtime errors, and support reliable long-context and LoRA experimentation.

Activity

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Quality Metrics

Correctness85.0%
Maintainability80.0%
Architecture85.0%
Performance80.0%
AI Usage30.0%

Skills & Technologies

Programming Languages

Python

Technical Skills

Backend DevelopmentData ProcessingDeep LearningMachine LearningModel LoadingModel OptimizationPyTorchPythonPython programmingalgorithm designdata processing

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

HabanaAI/vllm-fork

Aug 2025 Aug 2025
1 Month active

Languages Used

Python

Technical Skills

Backend DevelopmentDeep LearningMachine LearningModel LoadingModel OptimizationPyTorch

vllm-project/vllm-gaudi

Jan 2026 Jan 2026
1 Month active

Languages Used

Python

Technical Skills

Python programmingalgorithm designdata processing

red-hat-data-services/vllm-gaudi

Jan 2026 Jan 2026
1 Month active

Languages Used

Python

Technical Skills

Data ProcessingMachine LearningPython