Stefan Kolesnikowicz
About Stefan Kolesnikowicz
Stefan Kolesnikowicz is a Principal Site Reliability Engineer at Achievers, where he has worked since 2021. He has a diverse background in software development, cloud engineering, and photography, with previous roles at companies such as Bell Canada, Symantec, and Instacart.
Work at Achievers
Stefan Kolesnikowicz currently serves as Principal Site Reliability Engineer at Achievers, a role he has held since 2021. In this position, he leads the Kubernetes journey, focusing on enhancing the developer experience. Prior to this, he worked as Sr Staff Site Reliability Engineer at Achievers from 2019 to 2021. His responsibilities include ensuring system reliability and implementing best practices in site reliability engineering.
Previous Experience in Site Reliability Engineering
Before joining Achievers, Stefan worked at Instacart as Sr. Infrastructure Engineer from 2017 to 2019. He also held multiple positions at Symantec, including Principal Systems Engineer from 2013 to 2015 and Security Infrastructure Administrator from 2009 to 2011. His extensive experience in these roles has contributed to his expertise in chaos engineering and system resilience.
Education and Expertise
Stefan studied Computer Systems Technology at Durham College, where he earned a degree in Computer Science from 2006 to 2009. His educational background supports his diverse skill set, which includes expertise in ArgoCD, Istio, and service mesh technologies. He also has a strong foundation in cloud engineering and architecture, with experience in AWS and Google Cloud Platform.
Background in Software Development
Stefan began his career as a Systems Application Developer at McGraw-Hill Ryerson from 2007 to 2009. He later transitioned to roles at Symantec, where he served as a Security Infrastructure Administrator Team Lead and Sr. Security Infrastructure Administrator. His background in software development and systems engineering has equipped him with the skills necessary for his current role in site reliability engineering.
Professional Photography
In addition to his engineering career, Stefan is a professional fashion and portrait photographer. He has traveled globally for various photography projects, showcasing his creative talents outside of the technology field.