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Damien O'Sullivan

Software Engineer
Dublin, Ireland

+353 87 918 9904

Work Experience


Senior Software Engineer

Jun 2020 - Current



Software Engineer

Jul 2018 - Feb 2020

Displayr is a software company that specializes in Market Research software. Displayr have two software offerings; Q (a windows application) & Displayr (a web application). Here are some of my responsibilities:

  • Contribute to Displayr by adding features (C# & TypeScript), solving bugs (external customer reported) & contributing to the test suite (Selenium in Java)
  • Contribute to Q (desktop application) by monitoring incoming requests and fixing bugs (C#)
  • Respond to time sensitive customer requests that contribute to growth (i.e., sales)
  • Support and work alongside the in-house Data Scientists in order to bring advanced features to market such as Choice Modelling
  • Modernize the build, deploy & release process using automation tools such as AppVeyor and the Azure API


Software Development Engineer 2

Oct 2016 - Jan 2018

After transferring internally to AWS Monitoring, I joined the CloudWatch Console UI team who owned the the customer facing UI for AWS' metric and alarming service. Below are some key moments:

  • Adding the ability to hide autoscaling alarms (legacy gwt code) from the alarms summary. This was a highly requested feature by AWS customers
  • Adding the ability to specify any previous Console UI deployment front-end code to be executed against the checked-out version of the back-end code (API). This was for backwards compatibility testing after a bad deployment
  • Owning and delivering the UI development of Metric Math, CloudWatch's newest feature that allows metrics to me manipulated and normalised via expressions -


Software Development Engineer 1

Jun 2014 - Sep 2016

Upon first joining Amazon, I was a member of a team who developed several tools used daily by Network Engineers to maintain (update, change, fix, etc.) the ever-growing Amazon network. Here are some personal highlights:

  • Creating and owning a tool that allowed the updating of OS Firmware on JUNOS devices in a hands-off manner
  • Contributing to an org-wide push for automation (supervised automated execution) implementing safety measures and auditing of changes to be executed
  • Designing, peer-reviewing, and building a web portal to aggregate the many networking services into one over-arching view of the entire network
  • Driving adoption by talking to, and surveying, the most active users and quickly iterating changes based on feedback. Now widely used among Amazon Network Engineers


Software Development Intern

Apr 2012 - Mar 2013

Internship @ Ericsson


University College Cork

Bachelor of Science (B.Sc.) Computer Science

2009 - 2014

First Class Honours



Jan 2020 - Feb 2020

I made this as I struggled with sharing deep links to OneNote in Slack and other applications. OneNote links use a "onenote:" prefix that opens links in OneNote, however this does not work with chat apps. Using solves this issue.


  • Communication
  • Web Development
  • Teamwork
  • Software Design
  • Leadership
  • Time Management
  • Quick Learner
  • Problem Solving
  • Javascript
  • React
  • Java
  • Python
  • HTML + css
  • AWS
  • Linux
  • MySQL
  • Azure