Christopher Kujawa Email & Phone Number

Berlin, Berlin, Germany

In the last years, I championed Chaos Engineering practices to improve stability and confidence in our distributed systems (Zeebe) and our incident processes (w/ Game days).In my new role, I will have a holistic view of Camunda 8 and focus on quality requirements such as performance, stability, observability, and the maturity of our incident processes.

Berlin, Deutschland

Help to introduce Chaos Engineering @ZeebeStarted to run Chaos experiments manually and also automated with https://chaostoolkit.org/ later automating with Zeebe itself.Build up the backlog for Chaos experiments and introduce weekly Chaos Days https://github.com/zeebe-io/zeebe-chaos these Chaos Days are documented and a blog post is posted here https://zeebe-io.github.io/zeebe-chaos/In Camunda I worked to introduce monthly game days, build and share the confidence within different Teams, and find weaknesses in our processes, documentation, etc.I presented that on Camunda Con 2020.2 https://page.camunda.com/cclive-zell-chaosengineeringmeetszeebe

Berlin, Deutschland

Core contributor on an open-source project to create a fault-tolerant distributed streaming platform called Zeebe in Java https://camunda.com/platform/zeebe/ Bootstraping the Helm Charts https://helm.camunda.io/ for Camunda Platform 8 self-managed https://camunda.com/. Establishing chaos engineering in the Zeebe development cycle and cloud department, to find weaknesses early on and build confidence in our platform. Facilitating regular game days (department-wide) to build up confidence in our system, and processes and to train our people for incidents.During my time at Camunda I wrote several blog posts which are published at the Companys blog https://camunda.com/blog/author/christopher-kujawa/

Berlin, Deutschland

Working on an open-source project called Zeebe https://zeebe.io/, a workflow engine for microservice orchestration. Later also known as the engine behind Camund Platform 8 https://camunda.com/platform/During my time working on the Zeebe project I had several responsibilities and get in touch with many different tools, frameworks, environments, and technologies. I was part of several rewrites, architectural and API design, and creating new concepts for the system. Due to my experience and my interest, I was often part of bigger refactorings. Improving the system for maintenance, usability, and also performance was always something that triggered me. Finding and fixing hard and critical bugs were always something I liked and where I had a high ambition. Due to my interest in learning new technologies, I started several initiatives or started projects which helped the team and our users. See for example my other role description as Chaos engineer, but also other side projects I created.Most recently I created a project called Camunda platform Helm charts, which provides the Helm charts for Camunda Platform 8 https://github.com/camunda/camunda-platform-helm/ I was able to show my interest again creating new projects from scratch, planning, and executing them. When I start something I do this with care and ambition and this is something that distinguishes me.The following concepts, technologies, and frameworks I used as part of my work: * Consensus Algorithms (Raft) * Membership Protocols (Swim, Gossip) * BPMN 2.0 * Key value stores, RocksDB, Elastic * Kubernetes * Docker * Helm * Kubernetes Operator * gRPC, protobuf * SBE * MessagePack, JSON * Java 8, 11, 17 * Partly: Kotlin, C#, Golang * Static Code Analysis to improve Code quality * Performance Tuning * JVM and GC Concepts

Berlin Und Umgebung, Deutschland

Working on an open source project called Camunda BPM Platform https://github.com/camunda/camunda-bpm-platformWorked with different set of technologies, databases and application servers * H2 * DB2 * MySQL * MariaDB * PostgreSQL * SQL Server * Websphere * Tomcat * Weblogic * JBoss * WildFly * Java 6/7 * ORM * BPMN, CMNN, DMN * XML, Json * REST

Berlin Und Umgebung, Deutschland

Masterand und Werkstudent C# Entwickler

Berlin Und Umgebung, Deutschland

Werkstudent Java Backend und Android Entwicklung

Master Of Science - Ms, Computer Science, Programmiersprachen

Bachelor Of Science - Bs, Angewandte Informatik, Mobile Applications