Hello I'm

Eoghan O'Brien

IT generalist, software developer and InfoSec enthusiast
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About Me

Rasif Taghizade
Experience
5+ year
Projects
Various projects to fix a wide variety of issues.

An IT generalist with 5+ years experience and a love of software development and secure solutions.
My goal is to deliver efficient, effective, and secure solutions. I adhere to the following principles in my work:
- I focus on providing solutions that address the customer's needs and solve their problems.
- I believe in keeping stakeholders engaged and informed throughout the development process, ensuring they are active participants in the building of solutions.

Let's Talk

Skills

HTML

JavaScript

ReactJS

NodeJS

PHP

.NET Core

Python

Bash

Rust

Java

C#

GitHub

MySql | MSSQL | PostgreSQL

AWS: EC2 | Athena | S3 | Aurora

Metabase

Windows Server | Linux | Active Directory

Past Roles

Engineering Operations/Tier3 Support | HMH Publishing

11/2019 - Present

  • ● Triage tickets and resolve or assign them. Track issue trends across products and provide tools to help resolve them faster or pre-emptively fix them.
  • ● Generate runbooks, documentation, and tools to help remediate issues.
  • ● Enhance existing tools used across support to allow efficient and effective triaging of issues.
  • ● Maintain existing Operations infrastructure including EC2 instances, S3 Buckets, and Aurora PostgreSQL instances. This includes patching and reviewing resource provisioning for cost reduction.

    • System Test Engineer | Blackbox

    08/2018 - 10/2019

  • ● Design, develop and execute test cases.
  • ● Develop tools to replicate Tier3 support issues. These tools were used to rapidly recreate issues that were reported. This improved resolution times for customer issues.
  • ● Update and maintain software used for flashing firmware and testing boards before shipping. Resolved existing issues with the process which reduced the number of boards failing and increased throughput.
  • ● Reduced VM deployment time from 3 days to less than a day by automating the process.

    • High Performance Computing Operations Engineer/Developer | General Motors

    06/2016 - 07/2018

  • ● Java and Bash development and maintenance. Projects mostly focussed on improving efficiencies in jobs in order to reduce cost and improve throughput.
  • ● In one project I reduced overall cost by migrating secondary functions onto a separate queue which freed up CPU cores to be used by other jobs.
  • ● Maintenance and patching of HPC environment (1000+ servers) using Chef and Puppet
  • ● Hadoop Operations - providing server management support through Ambari. Managing monthly patch cycles across the Hadoop clusters.
  • ● Maintain, enhance, and secure Operations tools. This work reduced engineering time spent on applying upgrades to the HPC environment

    • Personal Projects

    Rust Todo

    Rust Todo

    This is a commandline TODO app written in the Rust programming language. I wrote this to learn more about Rust as a programming language and to see if it was a good fit for future personal projects.

    Rust

    Link
    Wedding Website

    Wedding Website

    A website I created to share the details of my wedding and collect RSVP info. I wrote it in HTML, PHP, and Javascript as they allowed me to do everything I needed to do.

    HTML | PHP | Javascript

    Link
    Resume Site

    Resume Site

    This resume website was built using ReactJS and deployed using the Netlify build infrastructure. The app is primarily ReactJS and HTML. The website is deployed on update to the repository. I took this project on to improve my ReactJS skills at a time when I was put on a React project in my current employer.

    React.js | HTML | CSS

    Link
    Image Checker

    Image Checker

    A simple image checker written in Python. I wrote it as a way to confirm, without looking at two images if they were the same image.

    Python

    Link

    DevRel Adjacent Experience

    Podcasting and Radio

  • – Volunteer Radio Presenting/Producing: Flirt FM NUI Galway (2004-2006), RAG Radio UL (2008), OnFM London (2012), The Back of the Library Podcast (2011-2014).
  • – Broadcast Radio: RTE Lyric FM - Technical Operator ensuring broadcasts went to air on time. (2008)

    • Adobe Audition | SAM Broadcaster | OBS

    Link

    Blogging

  • – swamptin.ie/mtb/index.html : A Mountain Biking Blog about my time training for and taking part in the Biking Blitz series and other race series in Ireland. (2022)
  • – swamptin.ie/tech/index.html : A tech blog I initially created to help track my progress through learning various secure software and security testing concepts. (2022)

    • HTML | CSS

    Link

    Qualifications

    Graduate Diploma in Software Development
    2016 - 1st Class Honours
    Music, Media, and Performance Technologies
    2010 - 3rd Class Honours
    Developing on AWS
    04/2021
    ISTQB Certified Tester, Foundation Level
    06/2019
    SOC Core Skills - Blackhills Information Security
    11/2020
    Getting Started in CyberSecurity - Blackhills Information Security
    01/2020

    Contact Me

    hello@eoghanobrien.ie
    Dublin, Ireland