Joanna Ostrowska

Angular Conference 2025 (Warsaw & Online)
Learn from the Best
Meet Joanna Ostrowska

Joanna Ostrowska

Performance Lessons from the World’s Largest Angular Application

What do you do when your application is simply "too slow"?

This session is a (not-so-fictional) journey inside a team's performance investigation. We'll show you why jumping straight into the code is the wrong move and how to start with data-driven monitoring to define what "slow" actually means.

Join us as we follow the clues, hunt down one bottleneck after another, and navigate the difficult, real-world trade-offs between speed, features, and user experience.
This isn't just a talk about performance tips; it's a story about the process. You'll leave with a practical mindset for diagnosing users' issues and building usable, high-performance Angular applications.

Joanna Ostrowska - Software Engineer, Google | Poland

Joanna Ostrowska has been a Software Engineer on the Google Cloud Console Platform for five years. She believes in creating accessible, user-friendly interfaces that are also backed by solid, well-maintained code. She actively looks for ways to improve both the user experience and the developer experience.

Learn from the Best Speakers

Minko Gechev

Angular Core Team, Google | USA

Alex Rickabaugh

Angular Core Team, Google | USA

Jeremy Elbourn

Angular Core Team, Google | USA

Jens Kuehlers

Angular Core Team, Google | Germany

Pawel Kozlowski

Angular Core Team, Google | France

Catalina Patiño

Software Engineer, Google | Colombia

Piotr Tomiak

Senior Software Developer, JetBrains | Poland

Joanna Ostrowska

Software Engineer, Google | Poland

Matthieu Riegler

Angular Core Team, Google | France

Brygida Fiejdasz

GDE for Angular, Lead of Frontend Competence Center, Avenga | Poland

Łukasz Jancewicz

Staff Software Engineer, Google | Poland

Kasia Biernat-Kluba

Principal Software Engineer, Hyland | Poland

Manfred Steyer

GDE for Angular, softwarearchitekt.at | Austria

Alex Okrushko

Senior Software Engineer, Snowflake | Canada

Nir Kaufman

Tech Lead, Full-stack AI Engineer, GDE, Tikal | Israel

Michael Egger-Zikes

Trainer & Consultant, AngularArchitects.io | Austria

Younes Jaaidi

Software Development Cook, Teacher & Coach, GDE | France

Vojtech Mašek

CTO, FlowUp | Czech Republic

Alexander Thalhammer

Passionate Angular Developer, Angular Architects | Austria

Tomas Trajan

Architect, Consultant and Trainer, GDE , AngularExperts.io | Switzerland

Rainer Hahnekamp

Trainer and Consultant, AngularArchitects.io | Austria

Rafal Brzoska

Solution Architect, Future Processing | Poland

Tomasz Ducin

Independent Consultant, Architect, Developer & Trainer, Poland

Dr. Philippe De Ryck

Security Expert, Founder, GDE, Pragmatic Web Security | Belgium

Daniel Sogl

Software-Architekt, Thinktecture AG | Germany

Dariusz Kalbarczyk

Google Developer Expert, Author, Podcaster, NG/JS/AI POLAND | Poland


Exciting updates are on the way! We’ll be announcing our first speakers for 2025 soon. Stay tuned! Want to be part of our lineup? Click the button below to apply!


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