Sebastian Mandrean
Software Development Engineer at 0+X
Stockholm County, Sweden
Summary
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RockstarSebastian Mandrean is a systems-focused Software Development Engineer with 11 years of experience building distributed, cloud-native platforms at companies like Spotify, Klarna, Tink and Discovery. He specializes in resilient microservices, real-time data pipelines and CI/CD across JVM and modern systems languages (Go, Rust), and routinely operates Kubernetes on GCP/AWS/Azure. Comfortable from low-level reverse engineering and hardware hacking to high-scale pub/sub architectures, he blends practical infrastructure automation with a security-minded, functional-programming approach. At Discovery he delivers highly distributed reactive Java/Kotlin services for global streaming, and his background includes building internal CI platforms and complex ingestion pipelines into BigQuery. A Fedora/macos power user and avid electronics tinkerer, he often brings hardware and reverse-engineering insights to software problems, enabling unconventional solutions to integration and observability challenges.
11 years of coding experience
11 years of employment as a software developer
German, English, ungerska, Swedish
Github Skills (200)
serde-json10
animated10
swagger10
proxy10
bitnami10
scheduling10
robust10
command-line-tool10
openapi10
k8s10
mesos10
api10
github-api10
draw10
api-server10
Programming languages (26)
Github contributions (5)
mandrean/cw-optimizoor
Jul 2022 - Jan 2023
A blazingly fast compiling & optimization tool for CosmWasm smart contracts.
Contributions:16 releases, 3 reviews, 78 commits in 6 months
rustoptimizationcargoblazingly-fastwebassembly
zero-plus-x/docker-images
Sep 2017 - Oct 2020
Our public Docker image library
Contributions:35 commits, 46 PRs, 49 pushes in 3 years 1 month
dockerfiledocker-imagedockerimage-library
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