Garrett O'Gorman
Dublin
Summary
Highly self-motivated and results driven Cloud DevOps Solutions architect, with more than twenty years' experience in IT. Hands on experience designing and implementing leading edge IT solutions for a broad range of industries, including public sector, tech, pharmaceutical, financial, and automotive. Expert or highly proficient in a wide variety of cutting-edge cloud technologies such as AWS, Azure, IaaS, Container Orchestration, Kubernetes, Network design, machine learning, IOT, and Cloud Security. Expert on Infrastructure as code and continuous integration and deployment pipelines. Legacy systems expertise include SAN Storage, Backup technologies, Networking, Virtualisation, UNIX, Linux, VMware and Windows Operating Systems. Eager to showcase my leadership and technical ability in designing, developing, and implementing cloud-based solutions for multiple end customers.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Senior Cloud DevOps Architect
Hertz International
Dublin
10.2022 - Current
- Hands-on AWS architect, implementing AWS infrastructure and services applying strict devops methodologies
- Infrastructure code automation using Terraform and Jenkins/Cloudbees
- Projects include: Large scale migration of Kubernetes infrastructure from on-premises Kubernetes to EKS in AWS Responsible for design, with hands-on delivery of EKS architecture through industry best practice on AWS, using scalable infrastructure as code, in Terraform
- Building Helm charts for creating and managing Kubernetes layered infrastructure services though continuous automation pipelines
- Management of service pipelines through Helm, with managed versioning through Artifactory
- Ongoing maintenance and continuous improvement of all AWS cloud infrastructure
- Terraform testing framework coupled with Devops best practices
- Creation of terraform reusable modules for EKS and all dependencies
- Automated infrastructure provisioning in scalable and secure fashion, including linting and security approval, gated pipelines
- API Gateway - design and implementation of a fully automated infrastructure, to integrate API gateway with backend services contained within EKS
- Fully automated IAC using modularised Terraform, managed through Jenkins/Cloudbees
- Integration of API Gateway endpoints with AWS networking and security stack and Lambda based authorisers
- Data protection and backup strategies using AWS backup Optimising AWS Enterprise architecture in an AWS Tower managed micro account architecture with transit gateway connectivity to on-premises systems
- Mentoring staff and documenting procedures, to provide a smooth transition from the implementation phase to support phase
- Managing team roadmap for optimum delivery of project-based enterprise workloads
- Presenting progress to senior stakeholders
- Security best practices in both networking and RBAC role management
- Using federated IAM roles for delegated pod level access to AWS services
- Application layer ingress network management leveraging AWS managed ingress controllers and Istio
- Low level network design, DNS optimisation, Route53 zone delegation and certificate management
- All infrastructure is managed though modularised Terraform IAC versioned in GitHub source control, automated through Jenkins pipelines, GitHub Actions pipelines, and service manifests managed through Helm
- Python scripting in Lambda for automated SNS triggering with Boto3 SDKs.
Senior Devops Consultant
Ericsson
Dublin
04.2022 - 10.2022
- Responsible for design and implementation of Developer Experience portal, built on the Spotify Backstage framework
- Working as an architect for Devops best practices around delivery of a custom DX portal
- Provided hands on node.js coding for creation of custom backstage plugins
- Provided integrations with tools such as Gerrit, Jenkins, LDAP, SonarQube, along with a documentation portal using Techdocs
- Creation of delivery pipelines for the provisioning backstage on Kubernetes.
Analytics Devops Lead
Fiserv
Nenagh
06.2021 - 04.2022
- Responsible for building and management of continuous automation pipelines through Gitlab and Python
- Duties include building Gitlab pipelines to integrate machine learning code into IAC managed infrastructure
- Infrastructure as code was managed through using a mixture of Gitlab CI and Terraform, and Lambda
- Projects included: Design and implementation of AWS Datalake and Lakeformation infrastructure through Terraform
- Automated migration of data from Oracle EDS to Snowflake Data Cloud, using QLIK replicate and Qlik Enterprise Manager
- Automation was achieved through Gitlab pipelines and custom Python scripts to manage API driven automation
- Addition of a testing framework on top of a Python and Gitlab automation
- Day to data maintenance of existing EKS infrastructure Importing manually created AWS resources into Terraform, bringing them under Devops IAC management
- Infrastructure is a mixture of on-premises and AWS with transit connectivity, which required careful for network and security best practice design.
Lead AWS Infrastructure Architect
3M
Dublin
01.2021 - 06.2021
- Working as an AWS infrastructure lead on an international project to deliver automated AMIs to the entire organisation
- Reporting directly to senior stakeholders across both European and US time zones
- Coordinating project goals with international teams and integrating existing infrastructure with green fields, automated AWS architecture
- Leading stand-ups, assigning Jira tasks, and managing backlogs, in line with expectations of senior stakeholders
- The project consisted of: Automated build pipelines for both Windows and Linux AMI
- The architecture consisted of AWS ImageBuilder, Lambda, and automated integrations back to existing compliance and testing infrastructure
- AWS Infrastructure was managed using Terraform, GitHub, and Jenkins
- Custom service integrations were managed using Lambda SAM and Python, for automated triggering and testing
- Organisation wide security model using AWS Tower, DiviCloud and security best practices.
Lead DevOps Integration Engineer
Walmart Labs
01.2020 - 12.2020
- Working in a mixed capacity of engineer and tech lead
- Managing team stand-ups, reviewing and assigning Jira tasks, to ensure timely deliveries
- Projects included: Implementation of a self-service portal for end user provisioning of Azure Cognitive Services, Bot Services, and Logic Apps
- Integration of new services with existing Azure infrastructure and RBAC security model
- Creation of custom Terraform modules and CICD integrations for all aspects of deployment using Terraform Enterprise and proprietary CICD tools
- Creation of form driven CICD deployments linked to a front-end API, for seamless customer provisioning of complex services
- Integration with frontend customer portal and Java based APIs
- Implementation of custom telemetry for all services using custom exporters, Prometheus, Pushgateway, and Grafana
- Container orchestration using proprietary Kubernetes infrastructure and code-based deployments.
Cloud Solutions Architect
SinglePoint
Dublin
06.2019 - 12.2019
- Hands on infrastructure architect and DevOps engineer specialising in AWS
- Functioning as both a lead architect and team leader on a multi-national team of more than twenty
- Duties included: Design and development of a DevOps automation system for a new finance application from initial concept to final product
- Specialising in Infrastructure as code integration with continuous integration and deployment pipelines
- Large-scale hybrid infrastructure provisioning on AWS
- Solutions implemented through Infrastructure as Code best practice and version-controlled code and automation pipelines
- Orchestration of container services on AWS ECS on EC2 and Fargate launch types
- Formalized strong identity and access management methodologies using combinations of AWS IAM and hybrid architectures
- Coordinated security design at the organisational level with a focus on the principle of least privilege along with tightly controlled permission boundaries
- Network design, employing separation of concern and containment of potential hazards posed by threats
- Isolation through subnet design, port security, network segregation, and transit encryption
- Operating system Image hardening through generation of Golden Images in automated pipelines.
AWS Solutions architect
Bank of Ireland
Dublin
01.2019 - 06.2019
- Orchestrated DevOps enablement and designed an automation strategy for a first to market digital banking application
- Duties included: Working closely with senior stakeholders for major DevOps integration project
- Providing to stakeholders with regular updates and planning around project goals and scopes
- Working alongside security team to ensure compliance with bank standards
- Developed the migration strategy for promoting systems from external to internal bank perimeter
- Ensuring secure application methodologies for immutable and streamline cloud services
- Development of automated golden AMI pipeline, using Packer, Ansible, and Jenkins
- Designed and implemented AWS in Terraform, with BitBucket, GoCD and Jenkins pipelines.
Site Reliability Engineer
Qstream
Dublin
01.2018 - 12.2018
- Infrastructure DevOps operating within a development team
- Duties included: Redesign and orchestration of a legacy Jenkins on-premises platform to AWS Cloud
- All infrastructure managed through Terraform
- Maintenance of existing and new CICD automation, through Jenkins Primary contact for developer teams ensuring a smooth transition from existing applications to a green field environment with minimum interruption.
Infrastructure Solution Architect
Fujitsu Services
Ireland
01.2008 - 12.2017
- Initially focused on SAN storage and backend data infrastructure, eventually finishing as an AWS cloud architect
- Journey included: Management of EMC SAN infrastructure for a variety of third-party clients SME for NetBackup including architecture and implementation of customer backup solutions
- Solutions ranged from local tape library-based backups to multi-site disk replications solutions, consisting of Open Storage devices, NetBackup Appliances, and storage lifecycle policies
- Architecture of enterprise backup systems on a petabyte scale for a variety of end customers
- Capacity planning, load management, vaulting and media aging across enterprise storage systems
- Expert across unified storage platforms, replication technologies, switch configurations, and capacity planning for environments of up to the Petabyte scale
- Integration expertise with a wide range of endpoint operating systems, such as VMware, Solaris, Linux, and Windows
- Lead architect on large scale cloud migration for customer on-premises infrastructure to AWS
- Automation managed though CloudFormation
- Design and stakeholder management for end-to-end project requirements.
Education
Postgraduate Certificate Electronic Engineering - IOT
Dublin City University
Dublin, Ireland06.2021
Master of Science - Cloud Computing
National College of Ireland
06.2016
B.Sc. in Applied Physics -
Dublin City University
06.1999
Leaving Certificate -
High School
06.1994
Skills
- AWS
- Terraform
- Kubernetes
- Helm
- Jenkins
- Network
- Data Analytics
- DevOps
- Solutions Architecture
- Azure
Certification
- AWS Certified DevOps Professional
- AWS Certified Security Specialty
- AWS Certified Advanced Networking
Timeline
Senior Cloud DevOps Architect
Hertz International
10.2022 - Current
Senior Devops Consultant
Ericsson
04.2022 - 10.2022
Analytics Devops Lead
Fiserv
06.2021 - 04.2022
Lead AWS Infrastructure Architect
3M
01.2021 - 06.2021
Lead DevOps Integration Engineer
Walmart Labs
01.2020 - 12.2020
Cloud Solutions Architect
SinglePoint
06.2019 - 12.2019
AWS Solutions architect
Bank of Ireland
01.2019 - 06.2019
Site Reliability Engineer
Qstream
01.2018 - 12.2018
Infrastructure Solution Architect
Fujitsu Services
01.2008 - 12.2017
Postgraduate Certificate Electronic Engineering - IOT
Dublin City University
Master of Science - Cloud Computing
National College of Ireland
B.Sc. in Applied Physics -
Dublin City University
Leaving Certificate -
High School
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