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Hi, I’m Joseph O'Deorain. I’m a Platform and Performance Engineer with over fifteen years of experience supporting business-critical applications and infrastructure across enterprise banking and insurance environments. I specialize in platform reliability, observability, automation, and infrastructure management across Windows, Linux, and cloud platforms. I’ve led migrations to modern observability stacks, built automated CI/CD pipelines, and implemented proactive monitoring and incident response. I’m passionate about collaborating with development and operations teams to reduce lead times and costs while improving service quality.…Hi, I’m Joseph O'Deorain. I’m a Platform and Performance Engineer with over fifteen years of experience supporting business-critical applications and infrastructure across enterprise banking and insurance environments. I specialize in platform reliability, observability, automation, and infrastructure management across Windows, Linux, and cloud platforms. I’ve led migrations to modern observability stacks, built automated CI/CD pipelines, and implemented proactive monitoring and incident response. I’m passionate about collaborating with development and operations teams to reduce lead times and costs while improving service quality.

Joseph O'Deorain

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Hi, I’m Joseph O'Deorain. I’m a Platform and Performance Engineer with over fifteen years of experience supporting business-critical applications and infrastructure across enterprise banking and insurance environments. I specialize in platform reliability, observability, automation, and infrastructure management across Windows, Linux, and cloud platforms. I’ve led migrations to modern observability stacks, built automated CI/CD pipelines, and implemented proactive monitoring and incident response. I’m passionate about collaborating with development and operations teams to reduce lead times and costs while improving service quality.…Hi, I’m Joseph O'Deorain. I’m a Platform and Performance Engineer with over fifteen years of experience supporting business-critical applications and infrastructure across enterprise banking and insurance environments. I specialize in platform reliability, observability, automation, and infrastructure management across Windows, Linux, and cloud platforms. I’ve led migrations to modern observability stacks, built automated CI/CD pipelines, and implemented proactive monitoring and incident response. I’m passionate about collaborating with development and operations teams to reduce lead times and costs while improving service quality.

Available to hire

Hi, I’m Joseph O’Deorain. I’m a Platform and Performance Engineer with over fifteen years of experience supporting business-critical applications and infrastructure across enterprise banking and insurance environments. I specialize in platform reliability, observability, automation, and infrastructure management across Windows, Linux, and cloud platforms.

I’ve led migrations to modern observability stacks, built automated CI/CD pipelines, and implemented proactive monitoring and incident response. I’m passionate about collaborating with development and operations teams to reduce lead times and costs while improving service quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

German

Beginner

Work Experience

Performance Engineer at Expleo Belfast

December 1, 2017 - December 1, 2017

Led the migration of locally hosted applications to multi-region data-center setups, delivering year-on-year cost savings for a Fortune 500 insurer. Implemented monthly performance regression tests to quantify the impact of configuration changes and introduced Splunk monitoring and alerting in production, reducing mean time to resolve defects from days to under an hour. Built and evolved CI/CD pipelines and cloud infrastructure to accelerate testing and deployment, fostering collaboration across teams and delivering measurable performance improvements.

Performance Engineer at Expleo Belfast

September 1, 2024 - September 1, 2024

Developed a fully automated cloud-based infrastructure, testing and observability solution using AWS, Terraform and Grafana Cloud, reducing per-worker node setup time from one hour to three minutes. Designed and implemented Dynatrace and Grafana observability to support migration to a new API gateway, achieving a 40% reduction in infrastructure cost. Executed performance assessments to ensure a client’s CRM application and underlying infra could support up to 1.5x current peak production load. Implemented a Jenkins CI/CD pipeline, cutting the time to configure and execute performance tests from two hours to 10 minutes.

Platform Engineer

October 1, 2024 - Present

Led the migration of a fully automated cloud-based infrastructure, testing and observability solution using AWS, Terraform and Grafana Cloud; implemented monitoring and alerting across production systems to enable rapid incident detection and resolution; demonstrated strong platform reliability across Windows, Linux, and cloud environments.

Performance Engineer / Platform Engineer at AlterSIS Performance Lab

April 1, 2023 - September 30, 2024

Led the migration of a performance test suite from LoadRunner to JMeter, reducing licensing costs by 20%. Implemented automated CI/CD pipelines and observability tooling to support production and testing activities.

Test Consultant / Platform Engineer at AlterSIS Performance Lab

September 1, 2020 - April 1, 2023

Led the migration of locally hosted applications in multiple locations to three regional data centers in the U.S., Europe, and Asia, resulting in year-on-year cost savings for a Fortune 500 global insurance company. Implemented monthly performance regression tests, ensuring prompt visibility of performance issues following code changes, and reduced test preparation time from three days to one day.

Platform Engineer at Expleo Belfast

January 1, 2010 - December 31, 2017

Led the migration of locally hosted applications across multiple locations to three regional data centers in the U.S., Europe, and Asia; implemented a fully automated cloud-based infrastructure, testing, and observability solution using AWS, Terraform and Grafana Cloud; reduced infrastructure setup time from hours to minutes.