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Szymon Dzialowski

@szymondzialowski

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I build and stabilize scalable Node.js microservices, developer tools, and cloud-native platforms.

United Kingdom

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At GoDaddy, I stabilize and optimize Node.js microservices, rewriting Ramda-based logic with async/await and reducing CI/CD build times from 40 minutes to as low as five.

I build internal tooling and CMT features, create Node.js endpoints for Java integrations, and use SQL transactions to prevent database inconsistencies. I also use Claude Code thoughtfully to accelerate refactoring, documentation, and testing without compromising code quality.

Previously at PHASE II International, I led the transition from PHP and Angular to Node.js and React, built a custom CMS, introduced Docker and Elasticsearch, and developed microservices for PDF generation and HTML scraping.

I've also maintained high-traffic web platforms, worked with data warehouses and Symfony2, administered Linux and LXC-based environments, and built reusable PHP and JavaScript tools—the kind of work I really like.

Experience

Work history, roles, and key accomplishments

Senior Node.js Developer

GoDaddy

Jul 2021 - Nov 2025 (4 years 4 months)

Stabilizing and Optimizing Microservices Infrastructure
- Rewriting parts of the logic from Ramda to standard async/await for better readability and
maintainability.
- Optimizing CI/CD pipelines, reducing build time from 40 minutes to as low as 5 minute, making long-term maintenance of these services feasible for the first time.
Building Internal Tools and Enhancing Developer Experience

CI CD Microservices SQL Claude Code Java Microsoft SQL Server TypeScript React Node.Js Development

Full-stack Developer

PHASE II International

Jul 2016 - Jul 2021 (5 years)

Year 2016-2017:

Introduced a custom prerender solution to the existing Angular 1 and PHP stack for improved SEO accessibility.
Simplified data flow in existing backend solutions.
Led the transition from PHP & Angular to Node.js & React, creating a custom CMS to enhance frontend developers' independence.

Year 2017-2019:

Implemented Docker for better consistency between local development and cont

Software Infrastructure Node.Js Development PHP React SSR Puppeteer Kubernetes Elasticsearch React

PHP/JS Senior Programmer

Absolvent.pl

Jan 2015 - Jun 2016 (1 year 5 months)

Mainly full maintenance of https://www.talentdays.pl (backend & frontend)
Also https://www.absolvent.pl/ (mainly backend and phpunit tests)
Also many different administration panels to support sales and for processing data purposes.

React Elasticsearch PHP

PHP/JS Programmer

Clickonometrics Sp. z o.o.

Sep 2014 - Dec 2014 (3 months)

- Advanced work with data warehouses and Symfony2, adserver
- building high-performance, scalable, bespoke software
... i can't talk about details due to confidentiality agreement

PHP/JS Programmer

Site S.A.

Mar 2012 - Aug 2014 (2 years 5 months)

Programmer PHP, Javascript, Html, Css, Bash and others
- legalne.info.pl - redesign to symfony2
- legenhit.com - redesign to symfony2
- yoyo.pl - back then it was biggest free hosting in Poland. technical support, modifying logic in PostgreSQL database internal languages.
- visit.olsztyn.eu - construction of significant part of portal in all subjects (setting up the environment, creating a skeleto