Tomasz Cejner
Senior Backend Engineer at Cloudinary
Cracow Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolTomasz Cejner is a Senior Backend Engineer with 14 years of experience building distributed systems and high-throughput services, currently helping Cloudinary serve billions of digital assets worldwide. He specializes in Go today but brings deep cross-language experience—from Java microservices and Kafka-based stream processing to mobile backends and native iOS—letting him bridge legacy ecosystems and modern cloud-native architectures. Comfortable splitting time between hands-on coding and team leadership, he has led small teams and driven architecture work at fast-growing product companies. Based in Kraków, Tomasz pairs pragmatic engineering with strong operational sense, having shipped systems in fintech, travel hospitality, recruitment SaaS, and large-scale media services. Unusually for a backend engineer, his academic background in cultural studies informs a user-aware approach to system design and communication across product teams.
14 years of coding experience
19 years of employment as a software developer
Master of Arts Cultural Studies, Master of Arts Cultural Studies at Jagiellonian UniversityAGH University of Krakow
English, Polish, German
Stackoverflow
1,182reputation
385kreached
15answers
4questions
Github Skills (166)
api-client10
swagger10
realm10
rest-client10
openapi-generator10
rest-api10
openapi10
code-generator10
stubs10
codegen10
swagger-ui10
api10
sdk10
rest10
swift10
Programming languages (13)
Github contributions (5)
tomekc/SwiftActors
Aug 2014 - May 2017
Contributions:3 commits, 1 PR, 2 pushes in 2 years 9 months
actor-modelswiftactor
tomekc/Hakawai
Jun 2015 - Sep 2018
Contributions:4 pushes, 1 branch in 3 years 3 months
swiftiosuikitextensible
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