Sebastian Łaskawiec
Staff Engineer at Defense Unicorns
Kuyavian-Pomeranian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolSebastian Łaskawiec is a Staff Engineer with 11+ years building cloud-native, data-intensive systems and a strong focus on Kubernetes, operators, containers and clustering. He has led operator design and on-prem deployment efforts at MongoDB and maintained core OpenShift auth and Keycloak integrations at Red Hat, blending hands-on engineering with cross-team leadership. A pragmatic TDD practitioner and refactoring specialist, he regularly modernizes legacy stacks into secure, containerized platforms. An open-source contributor, he’s worked on prominent projects like the MongoDB Kubernetes Operator and Keycloak container automation, often improving CI/CD, security posture (read-only filesystems) and deployment scripting. Based in Poland, he co-founded a Java user group (Bydgoszcz JUG) and pursues a PhD in IT and Telecommunications, reflecting a rare mix of community leadership, academic depth and production-grade DevOps expertise.
11 years of coding experience
18 years of employment as a software developer
PhD Information Technology and Telecommunications, PhD Information Technology and Telecommunications at University of Technology and Life Sciences
English
Stackoverflow
2,687reputation
488kreached
101answers
15questions
java
top-5%
Github Skills (38)
keycloak10
appbundle10
kubernetes10
container10
docker10
package-management10
scripting10
bash10
bundle10
dockers10
cicd10
script10
openshift10
kubernetes-pods10
k8s-operator10
Programming languages (18)
Github contributions (5)
keycloak/keycloak-containers
Aug 2018 - Sep 2020
ARCHIVED Containers for the no longer supported WildFly distribution of Keycloak
Role in this project:
DevOps Engineer
DevOps EngineerContributions:39 reviews, 6 commits, 56 PRs in 2 years
Contributions summary:Sebastian's commits primarily focus on automating and configuring the Keycloak container environment within a Kubernetes/OpenShift context. Their work involves writing and modifying shell scripts and configuration files to manage SSL certificates via OpenShift secrets, integrate with JGroups for clustering, and configure database connections. They modified the `docker-entrypoint.sh` script to support the new configurations. Additionally, the commits reflect an understanding of Keycloak's deployment process, encompassing configuration management and ensuring a smooth startup in a containerized environment.
containerswildflyno-longer-supportedkeycloaksupported
mongodb/mongodb-kubernetes-operator
Jun 2022 - Jan 2023
MongoDB Community Kubernetes Operator
Role in this project:DevOps Engineer & Cloud Engineer
DevOps Engineer & Cloud EngineerContributions:168 reviews, 20 commits, 143 PRs in 7 months
Contributions summary:Sebastian's contributions primarily focused on improving the Kubernetes operator's infrastructure and deployment. They implemented and updated the Kind cluster setup script, enabling more flexible configuration options. Further modifications included the use of a read-only filesystem, alongside other changes to the underlying infrastructure, to improve security and overall operability. They also made adjustments to CI/CD actions and configurations.
kubernetes-communityoperatormongodb-databasekuberneteskubernetes-operator
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