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Chiagozie Ezeudu

@chiagozieezeudu

Senior Platform Engineer at JJ Tech who migrated containerized workloads to EKS and cut runner overhead by 40%.

At JJ Tech, I engineered a production Kubernetes platform on Amazon EKS and migrated containerized applications from Amazon ECS. I used Argo CD ApplicationSets, Helm, and Karpenter to support multi-tenant workloads and improve scalability.

I also migrated self-hosted GitHub Actions runners to Kubernetes-native Actions Runner Controller on EKS, reducing operational overhead by an estimated 40%. I built an observability framework integrating Grafana, Tempo, Cortex/Mimir, and Loki to cut time to resolution and reduce alert fatigue.

In earlier platform and SRE work, I reduced AWS networking costs by 48% and improved deployment velocity by 65%. I also validated disaster recovery plans that achieved a 4-hour RTO and 15-minute RPO for critical services.

Experience

Work history, roles, and key accomplishments

Current

Senior Platform Engineer

Current

JJ Tech

Apr 2025 - Present (1 year 6 months)

Engineered a production Kubernetes platform on Amazon EKS supporting multi-tenant workloads and led migration of containerized applications from ECS to EKS. Designed GitOps delivery pipelines and implemented Docker Hardened Images and observability frameworks.

Amazon EKS Kubernetes Helm ArgoCD GitHub Actions Karpenter Amazon ECR Wiz Trivy Syft (SBOM)Grafana Tempo Cortex Mimir Loki OIDC SAML LDAP JWT Keycloak Okta

Senior DevOps & Site Reliability Engineer

JJ Tech

May 2023 - Mar 2025 (1 year 10 months)

Built reusable Terraform modules and platform standards for multi-account AWS provisioning, consolidated observability into Datadog, and developed Python automation for infrastructure validation. Reduced AWS networking costs by 48% and improved deployment velocity by 65%.

Terraform AWS Datadog Python Splunk Prometheus Grafana Cloudwatch Kafka MSK PostgreSQL CI CD SLOs Incident Response

DevOps Engineer

JJ Tech

Feb 2020 - Apr 2023 (3 years 2 months)

Built and maintained CI/CD pipelines using Jenkins, AWS CodeBuild, and CodePipeline, and designed cloud-native delivery pipelines with GitHub Actions and Kubernetes. Implemented real-time platform services and led a MySQL to Aurora migration.

Jenkins AWS CodeBuild AWS CodePipeline GitHub Actions Kubernetes Aurora PostgreSQL Amazon ECR Amazon EKS MSK Elasticache Elasticsearch Prometheus Grafana Kibana Splunk Ansible AWS DMS SCT Step Functions Lambda

Advanced Tech Tier II | Site Reliability Engineer

Endurance International Group

Apr 2019 - Jan 2020 (9 months)

Maintained 99.9% uptime for HostGator customers by resolving escalations and performing deep server evaluations. Led root cause analysis and improved observability using Zabbix and Bash automation.

Linux RHEL Apache Nginx MySQL PHP Import Export Zabbix BASH SRE Incident Management Root Cause Analysis

Technical Support | Site Reliability Engineer – Web Advisor

Endurance International Group

Jan 2017 - Mar 2019 (2 years 2 months)

Provided Linux-based web hosting support across DNS, email, SSL, and website availability issues. Troubleshot Apache/Nginx, PHP, MySQL, and CMS issues, and executed site recovery tasks.

Linux DNS Email SSL Apache Nginx PHP MySQL WordPress Joomla SMTP IMAP POP Backup and Restore Security Hardening

Network Cloud Engineer

Visa Inc

Jan 2016 - Dec 2016 (11 months)

Supported cloud network operations for the VOCC and designed a business case for network event correlation. Stood up a non-production cloud network environment and applied ITIL fundamentals to operations.

Cloud Networking ITIL Incident Management Change Management Problem Management Technical Documentation Moogsoft