Experience

I have worked in web development for more than 15 years. I have been with the KERRIS group since 2012, now as Head of Product Development at 300.codes.

Michał Strześniewski — Photo: Marta Weronika Pawłowska

At 300.codes I am responsible for product development, including how the team works with AI agents (agentic engineering). I have worked on more than 200 projects, including for Uber, Porsche and Roche; projects I co-created have received awards from Awwwards, CSS Winner and CSS Nectar.

Technologies

Agentic engineeringAI / LLMTypeScriptNode.jsJavaScriptPHPHTML/CSSWordPressGutenberg

Current roles

Where I work.

KERRIS group · now Head of Product Development at 300.codes

With the KERRIS group since 2012. At 300.codes I am responsible for product development, architecture and the use of AI in the team’s work. More than 200 projects, including for Uber, Porsche and Roche.

Co-founder and board member · Fundacja WWW

I work to support the growth of web development in Poland.

Speaker and trainer

Talks at WordCamps, WordUps, 4Developers and Codemotion. Training and workshops, among others with InfoShare Academy and Workshops4Dev.

Contributor · Open Mercato

As a contributor, I help develop an open source framework for building AI-enabled CRM/ERP systems.

Selected work

Projects.

WebsiteReal estatePL / EN

Elżbieta Gębska

Website of a RE/MAX Smart estate agent: her services, current listings and contact, in two languages.

ProjectRegattasLive results

Regatta Systems

A system for running regattas: entry lists, schedule, race officer panels and live results in one place.

Have a similar project?