Mateusz Fejczaruk
Blockchain Developer Consultant at 4soft
Lower Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMateusz Fejczaruk is a Blockchain Developer Consultant with 11 years of software engineering experience, combining a strong technical foundation in PHP/Symfony back-end development with formal training in finance. Since 2017 he has focused on blockchain consulting while drawing on earlier roles at Oro Inc., Clearcode, and ValueLogic where he contributed to core platform functionality and backend improvements. His open-source contributions include backend bug fixes and feature work on OroPlatform, demonstrating attention to serialization, search indexing, and entity relation workflows in a mature enterprise project. Fluent in bridging finance concepts and distributed ledger technology, he often applies economic reasoning to technical design and trade-offs. Based in Lower Silesia, Poland, he brings a pragmatic, detail-oriented approach to building auditable, production-ready systems. Colleagues value his blend of domain knowledge and hands-on coding, which helps translate complex requirements into robust implementations.
11 years of coding experience
3 years of employment as a software developer
Bachelor's degree, Finance and Accounting, 4.5, Bachelor's degree, Finance and Accounting, 4.5 at Uniwersytet Ekonomiczny we Wrocławiu
Polish, English, German
Github Skills (10)
php10
symfony10
b2b10
symfony-ux10
databases9
database9
serialization9
serializer9
serializable9
deserialization9
Programming languages (2)
Github contributions (5)
oroinc/platform
Jan 2017 - Jul 2017
Main OroPlatform package with core functionality.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:26 commits in 6 months
Contributions summary:Mateusz primarily contributed to the `OroPlatform` package, focusing on back-end functionality. Their work included bug fixes, such as ensuring the correct return type in the `SearchBundle` indexer and adding functionality related to "like" operators in the `SearchBundle`. They also refactored code to remove workflow-related processes. Furthermore, the user worked on serialization and deserialization of Localization objects, and modified entity relation grid listeners.
api-platformoroplatformphpb2bsymfony
mfejczaruk/rabbitmq-consumer-producer
Feb 2020 - Feb 2020
Simple producer/consumer for RabbitMQ
Contributions:30 pushes, 1 branch in 2 days
producerproducer-consumerrabbitmq
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