Piotr Antosz is a Senior Backend Engineer based in Poland with 11 years of hands-on experience building high-performance Python/Django systems for e-commerce, enterprise IoT, and serverless microservices. He has designed and optimized scalable API-driven architectures, automated payment flows, and database schemas that cut operational costs and maintenance time while improving throughput. At companies like PhotoRoom, VONQ, and Roger Publishing he focused on reliability, observability, and processing multi-format data under heavy load. He contributes backend fixes to prominent open-source projects such as Saleor, demonstrating attention to data integrity, migrations, and real-world commerce workflows. Comfortable across GraphQL, REST, Kubernetes, Kafka and AWS, he pairs deep backend craftsmanship with a pragmatic drive to save teams hundreds of hours through automation and TDD. An early background in C# desktop and image-processing solutions gives him a useful perspective when architecting performant, user-focused systems.
11 years of coding experience
8 years of employment as a software developer
Wyższa Szkoła Ekonomii i Informatyki w Krakowie
IT Technician, IT Technician at Technikum Informatyczne
Saleor Core: the high performance, composable, headless commerce API.
Role in this project:
Back-end Developer
Contributions:8 commits, 9 PRs, 42 comments in 7 months
Contributions summary:Piotr primarily focused on backend improvements and bug fixes within the Saleor e-commerce platform. Their contributions involved updating slug generation logic, fixing stock filters, and resolving a typo in the payment gateway code. These changes primarily affected migration files, product handling, and warehouse management, showcasing a focus on data integrity and functionality within the Saleor backend architecture. The user also performed code formatting using "black".
Contributions:9 PRs, 4 comments in 5 years 8 months
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Piotr Antosz - Senior Backend Engineer at PhotoRoom