Ra Kowalski - Senior Solutions Architect at Amazon Web Services (AWS)

Ra Kowalski

Senior Solutions Architect at Amazon Web Services (AWS)

Val Mara, Ticino, Switzerland

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Summary

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Rockstar

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Top School

Ra Kowalski is a Senior Solutions Architect at AWS with 11 years of professional software experience and a long history designing scalable, event-driven systems from startups to enterprise. He co-founded Matchmore and led its CTO efforts to build a location-based pub/sub platform, and previously ran Kowalski Consulting delivering end-to-end iOS and backend solutions with a focus on scalability, availability, and security. A hands-on engineer and senior Python developer, he contributes to notable open-source projects such as FOSSASIA’s Open Event (Android and server) and Gitcoin’s web platform, bridging mobile, backend, and web3 transaction integrations. His background spans research (high-performance event processing), industry roles at Sun and IBM, and a technical MSc from TU Berlin, reflecting a blend of academic rigor and production-grade architecture. Notably, he pairs deep systems design experience with practical UX and data-handling improvements in community projects, showing an aptitude for both protocol-level thinking and polishing user-facing details.

11 years of coding experience

21 years of employment as a software developer

M.Sc., Electrical Engineering, M.Sc., Electrical Engineering at Technische Universität Berlin

English, Polish, German, Italian, French, Russian

Stackoverflow

Stats

695reputation

57kreached

52answers

1question

Github Skills (33)

json10

javascript10

mobile-development10

event-handling10

python10

django10

event-manager10

java10

flask-ask10

javas10

eventbus10

api10

sqlalchemy10

database-design10

android10

Programming languages (9)

TypeScriptJavaCSSJavaScriptHTMLRubyPythonKotlin

Github contributions (5)

fossasia/open-event-server

May 2015 - Apr 2017

The Open Event Organizer Server to Manage Events https://test-api.eventyay.com

Role in this project:

Backend Developer

Contributions:877 commits, 442 PRs, 385 pushes in 1 year 11 months

Contributions summary:Ra appears to be primarily involved in the initial setup and development of core backend features for the Open Event Organizer Server. Their primary focus is on creating database models and setting up the initial configuration of the application. This includes creating models for various aspects of the event management system and implementing API endpoints.

api-testapieventsorganizer

fossasia/open-event-attendee-android

May 2015 - May 2015

Open Event Attendee Android General App https://github.com/fossasia/open-event-android/blob/apk/open-event-dev-app-playStore-debug.apk

Role in this project:

Mobile Developer (Android)

Contributions:10 commits, 9 pushes, 1 branch in 12 days

Contributions summary:Ra primarily contributed to the Android application, focusing on data handling, user interface improvements, and event details. They refactored code related to data parsing and database interaction. Additionally, they addressed issues with data visibility and fixed display issues related to speaker information and session start times. The user also added functionality to order events by start date.

attendeedevblobapkandroid

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