Profile
Software engineer with a strong foundation in PHP, TypeScript, backend development and APIs. Independently delivers solutions from technical decisions to implementation and testing, refactors legacy systems and shares knowledge with the team. Uses DDD and TDD, created Geo4You and develops personal products with AI assistance, with a current focus on PWAs.
Experience
Wonga.pl
Senior PHP Developer
07.2024 – present
- Independently developing and refactoring distributed Symfony and Drupal applications, from technical decisions to implementation and testing.
- Developing and refactoring a proxy API using DDD.
- Applying TDD and writing unit and integration tests when extending existing systems.
- Developing applications responsible for user authorization.
Packhelp
Senior Software Engineer I
08.2022 – 03.2024
- Developing a Gutenberg Page Builder using PHP, TypeScript and a DSL to support page creation.
- Extending the Directus CMS/PIM backend in TypeScript to manage content and product information.
- Implementing Redis caching and using Datadog for application diagnostics and monitoring.
- Writing technical documentation for the solutions being developed.
Software Engineer II
02.2022 – 08.2022
- Building a production web layer developed independently of WordPress and connected through an integration with WordPress Core.
- Designing independent components and integration boundaries that made replacing the CMS engine architecturally possible.
- Prototyping reusable components and solutions for a later Page Builder using PHP, TypeScript, React and Directus.
- Optimising the web layer, including image delivery with imgIX, and refactoring according to SOLID principles.
- Diagnosing and resolving issues reported through Sentry in collaboration with other teams.
Frontend Developer with PHP
03.2020 – 02.2022
- Modernising interfaces and improving frontend performance in collaboration with designers and content authors.
- Developing technical SEO and implementing structured data.
- Upgrading PHP to version 8.0 using a Docker environment.
Open Gate
Web Developer
02.2019 – 02.2020
- Developing WordPress websites and WooCommerce stores, including client features and maintenance of existing solutions.
- Implementing responsive HTML/CSS interfaces from visual designs.
- Introducing improvements supporting SEO.
Radosław Jankowski · Curriculum vitae
Skills
Backend: PHP 8.x · TypeScript · Symfony · Laravel
Frontend: TypeScript · HTML · CSS · JavaScript · React
Data & caching: MySQL · PostgreSQL · Redis
Tools & infrastructure: AWS · Docker · GitHub · Jenkins · Datadog · Sentry · imgIX
CMS platforms: WordPress / WooCommerce · Drupal · Directus · Gutenberg
Architecture & practices: DDD · TDD · SOLID · REST API · DSL · SEO · Structured data
AI tools: Claude · Codex · Stitch
Learning & exploration: PWA · Firebase · Cloudflare · Google Cloud
Reading & understanding code: Python
Education
Warsaw University of Technology 2010–2013
Geodesy and Cartography · Master of Science in Engineering (magister inżynier)
Warszawska Uczelnia Marii Skłodowskiej-Curie 2006–2010
Geodesy and Cartography · Bachelor's degree (inżynier)