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Ethem Cem Özkan
Senior DevOps Engineer
Nijkerk, Netherlands
ethemcemozkan.com
linkedin.com/in/ethemcemozkan
github.com/ethemcemozkan
Introduction
Senior DevOps Engineer with over 10 years of experience in cloud infrastructure, CI/CD pipelines,
and automation. Proven track record in AWS cloud migrations, containerizing legacy applications, and
optimizing development workflows for scalability and efficiency. Skilled in collaborating with crossfunctional teams to deliver reliable, secure, and high-performing systems. Enthusiastic, hands-on, and
always eager to learn new technologies.
Certificates
AZ-104: Azure Administrator Associate
Skills
Programming Languages
Observability
Python
Datadog
Java
Grafana
JavaScript
Elasticsearch
Stack(ELK)
Dynatrace
Powershell
Bash
AWS
Azure
ECS
Function App
EC2
AKS
IAM
Virtual Network
Lambda
Bicep
DynamoDB
Entra ID
AWS Backup
Azure DevOps
Cloudwatch
Storage Account
API Gateway
Azure Monitor
IAM Identity
Center(AWS SSO)
Aurora
Infrastructure & Automation
AmazonMQ
Docker
Glue
Ansible
EKS
RabbitMQ
Cost Optimisation
Cloudformation
Jenkins
Languages
English
Turkish
Dutch
Linux
Terraform
Kubernetes
Windows
Redis
PostgreSQL
Oracle
CDK
Cassandra
Experiences
Senior Cloud Engineer
2022.12 - Present
Coolblue
Techical Lead
Teamcity
Agile
TGW
AWS
Terraform
Azure
Landing Zone
Transit Gateway
CDK
Crowdstrike
Datadog
Azure Foundations
Designed a shared VPC to streamline networking between Coolblue and Coolblue Energie.
Implemented cross VPC connectivity using AWS Transit Gateway.
Implemented a custom AWS landing zone using Python CDK.
Managed Kubernetes(EKS) environments with a focus on CI/CD integrations, observability
tooling, and workload orchestration.
Enhanced security monitoring and threat detection by implementing advanced security
features such as GuardDuty.
Migrated SSO systems to a new Azure Entra ID tenant, improving authentication workflows and
identity management.
Implemented Datadog for monitoring and observability, improving system performance tracking
and alerting.
Designing the adoption of Azure cloud services, enabling new business capabilities and
integrating with existing infrastructure for hybrid cloud solutions.
Senior DevOps Engineer
2019.09 - 2022.12
ServiceHouse
Techical Lead
S3
Agile
Redshift
Lambda
AWS
ECS
EKS
IAM Identity Center(AWS SSO)
Cloudformation
Ansible
AWX
SNS
IAM
Fargate
Datadog
API Gateway
RDS
Python
ECR
DynamoDB
PostgreSQL
RabbitMQ
Glue
MySQL
Quicksight
Cloudwatch
Gradle
Self service AWS cloud implementation, enabling teams to autonomously manage cloud
resources without dealing with AWS complexities like setting up external exposure using API
Gateway or integration with self service business intelligence system.
Migrated workload services, databases, and RabbitMQ brokers from on-premises to AWS,
improving scalability and cost-efficiency. After migrations Enhanced security by implementing
WAF and CloudTrail.
Developed and managed Jenkins based Central CI/CD Groovy pipelines with configurable
deployment options to streamline the development process.
Implemented and managed Kubernetes(EKS) clusters to efficiently host and scale workloads,
leveraging Operators and Helm charts for automated deployment and lifecycle management.
Integrated AWX(Ansible Tower) with Kubernetes(EKS) to streamline automation workflows and
enhance deployment efficiency
Co-chaired platform future features meetings, gathering feedback, managing developer
expectations, and providing regular platform updates.
Implemented keystore and truststore management solution using Ansible, streamlined
certificate management and mutual TLS configuration across environments.
Implemented SSO systems using AWS IAM Identity Center and Azure Entra ID.
Built an access request system using DynamoDB, Lambda for managing access to restricted
resources securely.
Led AWS cloud modernization efforts, optimizing cloud infrastructure for performance and
cost-effectiveness.
Designed and implemented a resource lifecycle management system using Python to
automatically delete unused or expired resources, improving efficiency.
Led platform Python Lambda unit, integration test efforts, improving test coverage and
reducing deployment risks by implementing a simplified testing framework.
DevOps Engineer
2018.11 - 2019.09
ICterra
Docker
Swarm
Windows Containers
RabbitMQ
GitLab
Developed and maintained robust Gitlab based CI/CD pipelines to automate and streamline
the development and deployment processes across various projects.
Established and managed DTAP environments (Development, Testing, Acceptance, and
Production), ensuring consistency and stability throughout the software development lifecycle.
Implemented Windows containers that communicated with proprietary hardware, ensuring
seamless integration and enhancing system functionality.
Implemented and managed on-premises containerized environments.
DevOps Engineer
2018.06 - 2018.11
Notary Union of Turkey
Docker
Swarm
Bitbucket
Prometheus
Grafana
Managed on-premises infrastructure for high-volume, self-developed software used by
notaries across Turkey, ensuring system stability and performance.
Assisted in containerizing software solutions, streamlining deployment processes and
improving scalability.
Optimized system efficiency by leveraging containerization expertise, enabling smoother
operations and faster deployments.
Software Configuration Manager
TUBITAK
2012.05 - 2018.06
(The Scientific and Technological Research Council Of Turkey)
Agile
Java
Bash
Git
EC2
Cloudformation
Powershell
EJB
ELK
Spring
Dynatrace
Cassandra
VM
JSF
Linux
Teamcity
Hudson
Oracle
Maven
Leveraged AWS to implement load testing environment.
Set up an observability environment using Elasticsearch, Logstash, Kibana (ELK), and
Dynatrace, enabling comprehensive monitoring and logging across systems.
Leveraged Dynatrace for application performance monitoring, improving incident response times
and system reliability.
Participated in CMMI level 3 and 5 review processes.
Managed configuration across development, testing and production environments,
orchestrated CI pipelines, automated developer setups, and ensured adherence to CMMI
level 5 processes.
Developed and managed on-premises infrastructure to Turkey-wide high-volume projects,
including the Java based track and trace system for all medical devices.
Education
Computer Engineering (Phd)
2015 - discontinued
Hacettepe University
I completed all my courses for my Ph.D. However, I had to discontinue my studies due to my
relocation to the Netherlands.
Computer Engineering (Msc)
2012 - 2014
TOBB University of Economics and Technology
Computer Engineering (BS)
TOBB University of Economics and Technology
2007 - 2012
