My role at ezyVet is primarily focused on improving performance and response time across the full stack from PHP, MySQL and ElasticSearch improvements to optimizing AWS usage and cost.
- Pushing for latest versions of services to keep frameworks up to date and utilize any performance improvements (PHP, MySQL, Elasticsearch, Redis upgrades)
- Building automation pipelines through GitLab CI
- Experience building a cross-platform Go application utilizing Websockets with AWS API Gateway and SQS/SNS/DynamoDB/Lambda/Terraform
- Creating a full docker development environment for engineers to improve development workflows
- Reducing RDS load and improving SQL query response time via query restructuring to make better use of compound indexes and foreign keys
- Rebuilding Elasticsearch clusters to improve redundancy and response time with optimised indexes
- Writing custom service monitoring tools in Go that interface directly with Docker, ElasticSearch and PHP-FPM
- Optimising MySQL parameter groups to get the most out of each instance
<pstyle="margin-top:-20px;">October 2018 - August 2019</p>
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At Catalyst, I worked directly with several large corporate clients doing routine patching, performance improvements and general BAU. While primarily configuring CI/CD pipelines for full automated tested and deployments, I also gained experience with helm chart deployments into Kubernetes clusters hosted on OpenStack.I have also had the opportunity to gain more experience working with Puppet, Ansible and GitLab CI.
<h4style="margin-top:-16px; color: #afbac4">Cloud Environment and Application Engineer</h4>
<pstyle="margin-top:-20px;">August 2017 - October 2018</p>
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At ezyVet, I was primarily in charge of reviewing and merging code into our production environment as well as being our in-house DevOps/Infrastructure person. I occasionally did development work as well. In this position I gained vast experience in multiple areas as outlined below.
The position currently included the following responsibilities:
- Setting up and improving our CI/CD processes.
- Maintaining and constantly improving our environment. (AWS/Terraform)
- Setting up custom alerts / metrics with Cloudwatch & Grafana.
- Responding proactively to the above alerts to fix potential issues.
- Heavily involved in rolling out new technologies to our stack.
- Revision, escalation and resolution of tickets and other critical issues.
- Mentored Junior Developers through their induction into ezyVet.
DevOps:
- AWS: Consistently Improving our infrastructure to be efficient and reliable
- Linux: Daily experience with Debian, Ubuntu and Arch.
- CI / CD: Setting up and maintaining GitLab runners to run our Unit Tests / Automatic deploy pipelines inside docker containers.
- Packer/Chef/Vagrant: Building custom AMI images for AWS & Vagrant for our development machines.
- Terraform: Assisted migration of our AWS environments to code.
- Virtualization: Setting up Vagrant / Virtual Box environments that mock our production environment.
Programming:
- PHP: Building small features and day-to-day bug fixes as well.
- MySQL.
- Shell / Bash: Created custom scripts to achieve specific goals.
- Python / Node.js: Lambda functions in serverless.
- HTML / CSS / JS / jQuery.
Management:
- Code Review: In charge of reviewing all code before it gets merged in to our production branches.
- JIRA / Confluence / Freshdesk: Primarily used JIRA for ticket-tracking and Confluence for In-house documentation.
- Mentoring: I have taken on several junior developers over the 2 years to train them and assist them in becoming familiar with out code-base and work-flow.
