Michal Pasierbski

Amazon Web Services Software Development Engineer

08.2020 - now, Berlin, Germany

EF Education First Lead software developer

07.2019 - 07.2020, Zurich, Switzerland

Lead the implementation of Cloudflare workers handling all EF product pages traffic.

Lead performance task force team, making sure that new releases are in line with performance thresholds.

Lead "Platform" team responsible for product sites architecture and cloud operations.

R3PI Software development engineer/Front end lead

10.2018 - 05.2019, Zurich, Switzerland

Lead 3-man team's development efforts

Introduced data-loaders (caching mechanism) to GraphQL middleware, reducing number of roundtrips to external services.

Audited and optimized production builds by reducing overal bundle size by 25% and utlizing code splitting.

EF Education First Senior front end engineer

12.2017 - 09.2018, Luzern, Switzerland

Lead 4-man team's JavaScript development efforts, i.e. set standards for unit (Jest), integration (puppeteer) testing and code conventions.

Introduced code splitting and asset name hashing to utilize long term caching resulting in significant initial load performance increase.

Unified team's development environments by introducing and configuring Docker.

IS Engineering Ruby/Javascript engineer

01.2014 - 11.2017, Zug, Switzerland

Designed and implemented distributed, multi factory (glass plants) data analytics system (Docker, PostgreSQL, MongoDB, NodeJS, Ruby on Rails, Vue.js, Highcharts), successfully commissioned at plants in Ukraine, Brazil, Turkey and Germany.

PGS Software Javascript developer

09.2013 - 12.2013, Wroclaw, Poland

Remodeled team's git workflow, which resulted in 6 fold decrease of time needed for release preparation.

Automated project's build process by introducing Grunt task runner.

Sharewise Ruby/Javascript engineer

02.2011 - 08.2013, Wroclaw, Poland

Implemented "push" service (Websockets, NodeJS, Redis) for existing Ruby on Rails application.

Moved lagacy front end code from JqueryUI to AngularJS.

Led 3-man team in charge of mobile site version development.

Starware Ruby/Javascript engineer

09.2010 - 01.2011, Wroclaw, Poland

CMS Mirage JAVA developer

05.2009 - 08.2010, Wroclaw, Poland